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Merge pull request #1347 from nooges/nyquist

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Add Nyquist keyboard support
pull/1249/merge
Jack Humbert 8 years ago committed by GitHub
parent d548693c8b aae727d9ec
commit 9069edd934
32 changed files with 2750 additions and 0 deletions
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5
keyboards/nyquist/Makefile
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SUBPROJECT_DEFAULT = rev1
ifndef MAKEFILE_INCLUDED
include ../../Makefile
endif

27
keyboards/nyquist/config.h
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/*
Copyright 2017 Danny Nguyen <danny@hexwire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONFIG_H
#define CONFIG_H
#include "config_common.h"
#ifdef SUBPROJECT_rev1
#include "rev1/config.h"
#endif
#endif // CONFIG_H

162
keyboards/nyquist/i2c.c
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#include <util/twi.h>
#include <avr/io.h>
#include <stdlib.h>
#include <avr/interrupt.h>
#include <util/twi.h>
#include <stdbool.h>
#include "i2c.h"
#ifdef USE_I2C
// Limits the amount of we wait for any one i2c transaction.
// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
// 9 bits, a single transaction will take around 90μs to complete.
//
// (F_CPU/SCL_CLOCK) => # of μC cycles to transfer a bit
// poll loop takes at least 8 clock cycles to execute
#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
static volatile uint8_t slave_buffer_pos;
static volatile bool slave_has_register_set = false;
// Wait for an i2c operation to finish
inline static
void i2c_delay(void) {
uint16_t lim = 0;
while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
lim++;
// easier way, but will wait slightly longer
// _delay_us(100);
}
// Setup twi to run at 100kHz
void i2c_master_init(void) {
// no prescaler
TWSR = 0;
// Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
// Check datasheets for more info.
TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
}
// Start a transaction with the given i2c slave address. The direction of the
// transfer is set with I2C_READ and I2C_WRITE.
// returns: 0 => success
// 1 => error
uint8_t i2c_master_start(uint8_t address) {
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
i2c_delay();
// check that we started successfully
if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
return 1;
TWDR = address;
TWCR = (1<<TWINT) | (1<<TWEN);
i2c_delay();
if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
return 1; // slave did not acknowledge
else
return 0; // success
}
// Finish the i2c transaction.
void i2c_master_stop(void) {
TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
uint16_t lim = 0;
while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
lim++;
}
// Write one byte to the i2c slave.
// returns 0 => slave ACK
// 1 => slave NACK
uint8_t i2c_master_write(uint8_t data) {
TWDR = data;
TWCR = (1<<TWINT) | (1<<TWEN);
i2c_delay();
// check if the slave acknowledged us
return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
}
// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
// if ack=0 the acknowledge bit is not set.
// returns: byte read from i2c device
uint8_t i2c_master_read(int ack) {
TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
i2c_delay();
return TWDR;
}
void i2c_reset_state(void) {
TWCR = 0;
}
void i2c_slave_init(uint8_t address) {
TWAR = address << 0; // slave i2c address
// TWEN - twi enable
// TWEA - enable address acknowledgement
// TWINT - twi interrupt flag
// TWIE - enable the twi interrupt
TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
}
ISR(TWI_vect);
ISR(TWI_vect) {
uint8_t ack = 1;
switch(TW_STATUS) {
case TW_SR_SLA_ACK:
// this device has been addressed as a slave receiver
slave_has_register_set = false;
break;
case TW_SR_DATA_ACK:
// this device has received data as a slave receiver
// The first byte that we receive in this transaction sets the location
// of the read/write location of the slaves memory that it exposes over
// i2c. After that, bytes will be written at slave_buffer_pos, incrementing
// slave_buffer_pos after each write.
if(!slave_has_register_set) {
slave_buffer_pos = TWDR;
// don't acknowledge the master if this memory loctaion is out of bounds
if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
ack = 0;
slave_buffer_pos = 0;
}
slave_has_register_set = true;
} else {
i2c_slave_buffer[slave_buffer_pos] = TWDR;
BUFFER_POS_INC();
}
break;
case TW_ST_SLA_ACK:
case TW_ST_DATA_ACK:
// master has addressed this device as a slave transmitter and is
// requesting data.
TWDR = i2c_slave_buffer[slave_buffer_pos];
BUFFER_POS_INC();
break;
case TW_BUS_ERROR: // something went wrong, reset twi state
TWCR = 0;
default:
break;
}
// Reset everything, so we are ready for the next TWI interrupt
TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
}
#endif

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keyboards/nyquist/i2c.h
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#ifndef I2C_H
#define I2C_H
#include <stdint.h>
#ifndef F_CPU
#define F_CPU 16000000UL
#endif
#define I2C_READ 1
#define I2C_WRITE 0
#define I2C_ACK 1
#define I2C_NACK 0
#define SLAVE_BUFFER_SIZE 0x10
// i2c SCL clock frequency
#define SCL_CLOCK 100000L
extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
void i2c_master_init(void);
uint8_t i2c_master_start(uint8_t address);
void i2c_master_stop(void);
uint8_t i2c_master_write(uint8_t data);
uint8_t i2c_master_read(int);
void i2c_reset_state(void);
void i2c_slave_init(uint8_t address);
static inline unsigned char i2c_start_read(unsigned char addr) {
return i2c_master_start((addr << 1) | I2C_READ);
}
static inline unsigned char i2c_start_write(unsigned char addr) {
return i2c_master_start((addr << 1) | I2C_WRITE);
}
// from SSD1306 scrips
extern unsigned char i2c_rep_start(unsigned char addr);
extern void i2c_start_wait(unsigned char addr);
extern unsigned char i2c_readAck(void);
extern unsigned char i2c_readNak(void);
extern unsigned char i2c_read(unsigned char ack);
#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
#endif

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keyboards/nyquist/imgs/split-keyboard-i2c-schematic.png
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keyboards/nyquist/imgs/split-keyboard-serial-schematic.png
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keyboards/nyquist/keymaps/hexwire/Makefile
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RGBLIGHT_ENABLE = yes
ifndef QUANTUM_DIR
include ../../../../Makefile
endif

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keyboards/nyquist/keymaps/hexwire/README.md
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Hexwire's Nyquist Layout
============================
### Changes from default layout
- Main layer
- The right space bar key has been changed to backspace, as I only hit space with my left thumb
- Backtick is at the lower right and also serves goes to the 3rd function layer when held
- Enter key acts as shift when held
- Escape key acts as control when held
- Minus key at upper right
- Lower layer
- Numbers are on the lower layer, to make it easier to use a numpad on the right hand
- Arrow keys
- Straight and curly brackets in the middle two columns
- Screenshot keys for MacOS
- Upper layer
- Symbols are on the upper layer
- Media keys
- Page Up/Down, Home/End
- 3rd function layer
- Function keys
## Layouts
### QWERTY
```
,----+----+----+----+----+----. ,----+----+----+----+----+----.
|ESC , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ,BSPC|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|TAB , Q , W , E , R , T , Y , U , I , O , P ,MINS|
|----+----+----+----+----+----| |----+----+----+----+----+----|
| X0 , A , S , D , F , G , H , J , K , L ,SCLN,QUOT|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|LSFT, Z , X , C , V , B , N , M ,COMM,DOT ,SLSH, X4 |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT|
`----+----+----+----+----+----' `----+----+----+----+----+----'
```
### Colemak
```
,----+----+----+----+----+----. ,----+----+----+----+----+----.
|ESC , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ,BSPC|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|TAB , Q , W , F , P , G , J , L , U , Y ,SCLN,MINS|
|----+----+----+----+----+----| |----+----+----+----+----+----|
| X0 , A , R , S , T , D , H , N , E , I , O ,QUOT|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|LSFT, Z , X , C , V , B , K , M ,COMM,DOT ,SLSH, X4 |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT|
`----+----+----+----+----+----' `----+----+----+----+----+----'
```
### Dvorak
```
,----+----+----+----+----+----. ,----+----+----+----+----+----.
|ESC , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ,BSPC|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|TAB ,QUOT,COMM,DOT , P , Y , F , G , C , R , L ,MINS|
|----+----+----+----+----+----| |----+----+----+----+----+----|
| X0 , A , O , E , U , I , D , H , T , N , S ,SLSH|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|LSFT,SCLN, Q , J , K , X , B , M , W , V , Z , X4 |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT|
`----+----+----+----+----+----' `----+----+----+----+----+----'
```
### Lower
```
,----+----+----+----+----+----. ,----+----+----+----+----+----.
|TILD,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN,BSPC|
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 , |
|----+----+----+----+----+----| |----+----+----+----+----+----|
|DEL ,CAPP,LEFT,RGHT, UP ,LBRC, RBRC, P4 , P5 , P6 ,PLUS,PIPE|
|----+----+----+----+----+----| |----+----+----+----+----+----|
| ,CPYP, , ,DOWN,LCBR, RCBR, P1 , P2 , P3 ,MINS, |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , , , , , , DEL , , P0 ,PDOT, , |
`----+----+----+----+----+----' `----+----+----+----+----+----'
```
### Raise
```
,----+----+----+----+----+----. ,----+----+----+----+----+----.
|TILD,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN,BSPC|
|----+----+----+----+----+----| |----+----+----+----+----+----|
| ,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN, |
|----+----+----+----+----+----| |----+----+----+----+----+----|
|DEL ,MPRV,MNXT,VOLU,PGUP,UNDS, EQL ,HOME, , , ,BSLS|
|----+----+----+----+----+----| |----+----+----+----+----+----|
|MUTE,MSTP,MPLY,VOLD,PGDN,MINS, PLUS,END , , , , |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , , , , , , , , , , , |
`----+----+----+----+----+----' `----+----+----+----+----+----'
```
### 3rd function layer
```
,----+----+----+----+----+----. ,----+----+----+----+----+----.
|F12 , F1 , F2 , F3 , F4 , F5 , F6 , F7 , F8 , F9 ,F10 ,F11 |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , , , , , , , , , , , |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , , , , , , , , , , , |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , , , , , , , , , , , |
|----+----+----+----+----+----| |----+----+----+----+----+----|
| , , , , , , , , , , , |
`----+----+----+----+----+----' `----+----+----+----+----+----'
```

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keyboards/nyquist/keymaps/hexwire/Underglow Pinouts.md
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# Let's Split RGB Underglow
## Master
### Pro Micro
- Red: LED +5V -> Pro Micro VCC
- Green: LED Din -> Pro Micro TX0
- Black: LED GND -> Pro Micro GND
### TRRS
- Red: LED +5V -> PCB VCC
- Green: LED Do -> PCB Extra Data
- Black: LED GND -> PCB GND
## Slave
### TRRS
- Red: LED +5V -> PCB VCC
- Green: LED Din -> PCB Extra Data
- Black: LED GND -> PCB GND

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keyboards/nyquist/keymaps/hexwire/config.h
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/*
Copyright 2017 Danny Nguyen <danny@hexwire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define USE_SERIAL
#define TAPPING_TERM 150
#ifdef SUBPROJECT_rev1
#include "../../rev1/config.h"
#endif
#undef RGBLED_NUM
#define RGBLIGHT_ANIMATIONS
#define RGBLED_NUM 8
#define RGBLIGHT_HUE_STEP 8
#define RGBLIGHT_SAT_STEP 8
#define RGBLIGHT_VAL_STEP 8

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keyboards/nyquist/keymaps/hexwire/keymap.c
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#include "nyquist.h"
#include "action_layer.h"
#include "eeconfig.h"
extern keymap_config_t keymap_config;
#define _QWERTY 0
#define _COLEMAK 1
#define _DVORAK 2
#define _LOWER 3
#define _RAISE 4
#define _FN3 5
#define _FN4 6
#define _ADJUST 16
enum custom_keycodes {
QWERTY = SAFE_RANGE,
COLEMAK,
DVORAK,
LOWER,
RAISE,
FN3,
FN4,
ADJUST,
};
#define KC_ KC_TRNS
#define _______ KC_TRNS
#define KC_CAPW LGUI(LSFT(KC_3)) // Capture whole screen
#define KC_CPYW LGUI(LSFT(LCTL(KC_3))) // Copy whole screen
#define KC_CAPP LGUI(LSFT(KC_4)) // Capture portion of screen
#define KC_CPYP LGUI(LSFT(LCTL(KC_4))) // Copy portion of screen
#define KC_X0 MT(MOD_LCTL, KC_ESC)
#define KC_X1 LOWER
#define KC_X2 RAISE
#define KC_X3 LT(_FN3, KC_GRV)
#define KC_X4 MT(MOD_LSFT, KC_ENT)
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[_QWERTY] = KC_KEYMAP(
//,----+----+----+----+----+----. ,----+----+----+----+----+----.
ESC , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ,BSPC,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
TAB , Q , W , E , R , T , Y , U , I , O , P ,MINS,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
X0 , A , S , D , F , G , H , J , K , L ,SCLN,QUOT,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
LSFT, Z , X , C , V , B , N , M ,COMM,DOT ,SLSH, X4 ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
//`----+----+----+----+----+----' `----+----+----+----+----+----'
),
[_COLEMAK] = KC_KEYMAP(
//,----+----+----+----+----+----. ,----+----+----+----+----+----.
ESC , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ,BSPC,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
TAB , Q , W , F , P , G , J , L , U , Y ,SCLN,MINS,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
X0 , A , R , S , T , D , H , N , E , I , O ,QUOT,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
LSFT, Z , X , C , V , B , K , M ,COMM,DOT ,SLSH, X4 ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
//`----+----+----+----+----+----' `----+----+----+----+----+----'
),
[_DVORAK] = KC_KEYMAP(
//,----+----+----+----+----+----. ,----+----+----+----+----+----.
ESC , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ,BSPC,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
TAB ,QUOT,COMM,DOT , P , Y , F , G , C , R , L ,MINS,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
X0 , A , O , E , U , I , D , H , T , N , S ,SLSH,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
LSFT,SCLN, Q , J , K , X , B , M , W , V , Z , X4 ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
//`----+----+----+----+----+----' `----+----+----+----+----+----'
),
[_LOWER] = KC_KEYMAP(
//,----+----+----+----+----+----. ,----+----+----+----+----+----.
TILD,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN,BSPC,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 , ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
DEL ,CAPP,LEFT,RGHT, UP ,LBRC, RBRC, P4 , P5 , P6 ,PLUS,PIPE,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
,CPYP, , ,DOWN,LCBR, RCBR, P1 , P2 , P3 ,MINS, ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, , , , , , DEL , , P0 ,PDOT, ,
//`----+----+----+----+----+----' `----+----+----+----+----+----'
),
[_RAISE] = KC_KEYMAP(
//,----+----+----+----+----+----. ,----+----+----+----+----+----.
TILD,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN,BSPC,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN, ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
DEL ,MPRV,MNXT,VOLU,PGUP,UNDS, EQL ,HOME, , , ,BSLS,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
MUTE,MSTP,MPLY,VOLD,PGDN,MINS, PLUS,END , , , , ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, , , , , , , , , , ,
//`----+----+----+----+----+----' `----+----+----+----+----+----'
),
[_FN3] = KC_KEYMAP(
//,----+----+----+----+----+----. ,----+----+----+----+----+----.
F12 , F1 , F2 , F3 , F4 , F5 , F6 , F7 , F8 , F9 ,F10 ,F11 ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, , , , , , , , , , , ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, , , , , , , , , , , ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, , , , , , , , , , , ,
//|----+----+----+----+----+----| |----+----+----+----+----+----|
, , , , , , , , , , ,
//`----+----+----+----+----+----' `----+----+----+----+----+----'
),
/* Adjust (Lower + Raise)
* ,-----------------------------------------------------------------------------------.
* | | Reset|RGB Tg|RGB Md|Hue Up|Hue Dn|Sat Up|Sat Dn|Val Up|Val Dn| | |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | | | | | | | | | | | |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | | | | |
* `-----------------------------------------------------------------------------------'
*/
[_ADJUST] = KEYMAP( \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
_______, RESET , RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, RGB_VAD, RGB_VAI, _______, _______, \
_______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
)
};
#ifdef AUDIO_ENABLE
float tone_qwerty[][2] = SONG(QWERTY_SOUND);
float tone_dvorak[][2] = SONG(DVORAK_SOUND);
float tone_colemak[][2] = SONG(COLEMAK_SOUND);
#endif
void persistent_default_layer_set(uint16_t default_layer) {
eeconfig_update_default_layer(default_layer);
default_layer_set(default_layer);
}
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case QWERTY:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
#endif
persistent_default_layer_set(1UL<<_QWERTY);
}
return false;
break;
case COLEMAK:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_colemak, false, 0);
#endif
persistent_default_layer_set(1UL<<_COLEMAK);
}
return false;
break;
case DVORAK:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
#endif
persistent_default_layer_set(1UL<<_DVORAK);
}
return false;
break;
case LOWER:
if (record->event.pressed) {
layer_on(_LOWER);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
} else {
layer_off(_LOWER);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
}
return false;
break;
case RAISE:
if (record->event.pressed) {
layer_on(_RAISE);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
} else {
layer_off(_RAISE);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
}
return false;
break;
case ADJUST:
if (record->event.pressed) {
layer_on(_ADJUST);
} else {
layer_off(_ADJUST);
}
return false;
break;
}
return true;
}

39
keyboards/nyquist/keymaps/hexwire/keymap_converter.py
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#!/usr/bin/env python
import re
class KeymapConverter:
def __init__(self, filename):
self.filename = filename
def read_keymaps(self):
with open(self.filename) as f:
lines = f.readlines()
mode = 0
for line in lines:
line = line[:-1]
if mode == 0:
if "KC_KEYMAP" in line:
matches = re.match(r'.*\[(.*)\] = .*', line)
if matches:
layer_name = matches.group(1)
layer_name = layer_name[1:].capitalize()
print '###', layer_name
print '```'
mode = 1
elif mode == 1:
if "//" in line:
print line[4:]
elif ")" in line:
mode = 0
print '```'
print
elif line[-1] == ',':
print "|" + line[5:-1] + "|"
else:
print "|" + line[5:] + "|"
converter = KeymapConverter('keymap.c')
converter.read_keymaps()

40
keyboards/nyquist/keymaps/hexwire/keymap_to_readme.rb
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#!/usr/bin/env ruby
class KeymapConverter
def initialize(filename)
@filename = filename
@mode = :search
end
def read_keymaps
lines = IO.readlines(@filename)
lines.each { |line| parse_line line[0..-2] }
end
def parse_line(line)
case @mode
when :search
if line =~ /KC_KEYMAP/
puts "### #{line}"
puts "```"
@mode = :parse
end
when :parse
if line =~ /\)/
@mode = :search
puts "```\n\n"
else
line = line[4..-1]
line.sub!(/(,)^-/m, "|")
line.sub!(/( {4})/, " |")
puts line
end
end
end
end
converter = KeymapConverter.new('keymap.c')
converter.read_keymaps

26
keyboards/nyquist/keymaps/i2c/config.h
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/*
Copyright 2017 Danny Nguyen <danny@hexwire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define USE_I2C
#define MASTER_LEFT
// #define _MASTER_RIGHT
// #define EE_HANDS
#ifdef SUBPROJECT_rev1
#include "../../rev1/config.h"
#endif

231
keyboards/nyquist/keymaps/i2c/keymap.c
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#include "nyquist.h"
#include "action_layer.h"
#include "eeconfig.h"
extern keymap_config_t keymap_config;
// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _QWERTY 0
#define _COLEMAK 1
#define _DVORAK 2
#define _LOWER 3
#define _RAISE 4
#define _ADJUST 16
enum custom_keycodes {
QWERTY = SAFE_RANGE,
COLEMAK,
DVORAK,
LOWER,
RAISE,
ADJUST,
};
// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Qwerty
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | Tab | Q | W | E | R | T | Y | U | I | O | P | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Esc | A | S | D | F | G | H | J | K | L | ; | " |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
* `-----------------------------------------------------------------------------------'
*/
[_QWERTY] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_DEL, \
KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
),
/* Colemak
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | Tab | Q | W | F | P | G | J | L | U | Y | ; | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Esc | A | R | S | T | D | H | N | E | I | O | " |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | Shift| Z | X | C | V | B | K | M | , | . | / |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
* `-----------------------------------------------------------------------------------'
*/
[_COLEMAK] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_DEL, \
KC_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
),
/* Dvorak
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | Tab | " | , | . | P | Y | F | G | C | R | L | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Esc | A | O | E | U | I | D | H | T | N | S | / |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | Shift| ; | Q | J | K | X | B | M | W | V | Z |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
* `-----------------------------------------------------------------------------------'
*/
[_DVORAK] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_DEL, \
KC_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH, \
KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT , \
ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
),
/* Lower
* ,-----------------------------------------------------------------------------------.
* | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | | \ | | |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | F7 | F8 | F9 | F10 | F11 | F12 |ISO ~ |ISO | | | |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | Next | Vol- | Vol+ | Play |
* `-----------------------------------------------------------------------------------'
*/
[_LOWER] = KEYMAP( \
KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
_______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
),
/* Raise
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | F7 | F8 | F9 | F10 | F11 | F12 |ISO # |ISO / | | |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | Next | Vol- | Vol+ | Play |
* `-----------------------------------------------------------------------------------'
*/
[_RAISE] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_DEL, \
KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS, \
_______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NUHS, KC_NUBS, _______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
),
/* Adjust (Lower + Raise)
* ,-----------------------------------------------------------------------------------.
* | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F11 | F12 |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | Reset| | | | | | | | | | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | | | | | | | | | | | |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | | | | |
* `-----------------------------------------------------------------------------------'
*/
[_ADJUST] = KEYMAP( \
KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, \
_______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
_______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
)
};
#ifdef AUDIO_ENABLE
float tone_qwerty[][2] = SONG(QWERTY_SOUND);
float tone_dvorak[][2] = SONG(DVORAK_SOUND);
float tone_colemak[][2] = SONG(COLEMAK_SOUND);
#endif
void persistent_default_layer_set(uint16_t default_layer) {
eeconfig_update_default_layer(default_layer);
default_layer_set(default_layer);
}
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case QWERTY:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
#endif
persistent_default_layer_set(1UL<<_QWERTY);
}
return false;
break;
case COLEMAK:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_colemak, false, 0);
#endif
persistent_default_layer_set(1UL<<_COLEMAK);
}
return false;
break;
case DVORAK:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
#endif
persistent_default_layer_set(1UL<<_DVORAK);
}
return false;
break;
case LOWER:
if (record->event.pressed) {
layer_on(_LOWER);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
} else {
layer_off(_LOWER);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
}
return false;
break;
case RAISE:
if (record->event.pressed) {
layer_on(_RAISE);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
} else {
layer_off(_RAISE);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
}
return false;
break;
case ADJUST:
if (record->event.pressed) {
layer_on(_ADJUST);
} else {
layer_off(_ADJUST);
}
return false;
break;
}
return true;
}

26
keyboards/nyquist/keymaps/serial/config.h
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/*
Copyright 2017 Danny Nguyen <danny@hexwire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define USE_SERIAL
#define MASTER_LEFT
// #define _MASTER_RIGHT
// #define EE_HANDS
#ifdef SUBPROJECT_rev1
#include "../../rev1/config.h"
#endif

232
keyboards/nyquist/keymaps/serial/keymap.c
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#include "nyquist.h"
#include "action_layer.h"
#include "eeconfig.h"
extern keymap_config_t keymap_config;
// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _QWERTY 0
#define _COLEMAK 1
#define _DVORAK 2
#define _LOWER 3
#define _RAISE 4
#define _ADJUST 16
enum custom_keycodes {
QWERTY = SAFE_RANGE,
COLEMAK,
DVORAK,
LOWER,
RAISE,
ADJUST,
};
// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Qwerty
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | Tab | Q | W | E | R | T | Y | U | I | O | P | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Esc | A | S | D | F | G | H | J | K | L | ; | " |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
* `-----------------------------------------------------------------------------------'
*/
[_QWERTY] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_DEL, \
KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
),
/* Colemak
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | Tab | Q | W | F | P | G | J | L | U | Y | ; | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Esc | A | R | S | T | D | H | N | E | I | O | " |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | Shift| Z | X | C | V | B | K | M | , | . | / |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
* `-----------------------------------------------------------------------------------'
*/
[_COLEMAK] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_DEL, \
KC_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
),
/* Dvorak
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | Tab | " | , | . | P | Y | F | G | C | R | L | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Esc | A | O | E | U | I | D | H | T | N | S | / |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | Shift| ; | Q | J | K | X | B | M | W | V | Z |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
* `-----------------------------------------------------------------------------------'
*/
[_DVORAK] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_DEL, \
KC_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH, \
KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT , \
ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
),
/* Lower
* ,-----------------------------------------------------------------------------------.
* | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | | \ | | |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | F7 | F8 | F9 | F10 | F11 | F12 |ISO ~ |ISO | | | |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | Next | Vol- | Vol+ | Play |
* `-----------------------------------------------------------------------------------'
*/
[_LOWER] = KEYMAP( \
KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
_______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
),
/* Raise
* ,-----------------------------------------------------------------------------------.
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | F7 | F8 | F9 | F10 | F11 | F12 |ISO # |ISO / | | |Enter |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | Next | Vol- | Vol+ | Play |
* `-----------------------------------------------------------------------------------'
*/
[_RAISE] = KEYMAP( \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_DEL, \
KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS, \
_______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NUHS, KC_NUBS, _______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
),
/* Adjust (Lower + Raise)
* ,-----------------------------------------------------------------------------------.
* | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F11 | F12 |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | Reset| | | | | | | | | | Del |
* |------+------+------+------+------+-------------+------+------+------+------+------|
* | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
* |------+------+------+------+------+------|------+------+------+------+------+------|
* | | | | | | | | | | | | |
* |------+------+------+------+------+------+------+------+------+------+------+------|
* | | | | | | | | | | | |
* `-----------------------------------------------------------------------------------'
*/
[_ADJUST] = KEYMAP( \
KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, \
_______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
_______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
)
};
#ifdef AUDIO_ENABLE
float tone_qwerty[][2] = SONG(QWERTY_SOUND);
float tone_dvorak[][2] = SONG(DVORAK_SOUND);
float tone_colemak[][2] = SONG(COLEMAK_SOUND);
#endif
void persistent_default_layer_set(uint16_t default_layer) {
eeconfig_update_default_layer(default_layer);
default_layer_set(default_layer);
}
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case QWERTY:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
#endif
persistent_default_layer_set(1UL<<_QWERTY);
}
return false;
break;
case COLEMAK:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_colemak, false, 0);
#endif
persistent_default_layer_set(1UL<<_COLEMAK);
}
return false;
break;
case DVORAK:
if (record->event.pressed) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
#endif
persistent_default_layer_set(1UL<<_DVORAK);
}
return false;
break;
case LOWER:
if (record->event.pressed) {
layer_on(_LOWER);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
} else {
layer_off(_LOWER);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
}
return false;
break;
case RAISE:
if (record->event.pressed) {
layer_on(_RAISE);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
} else {
layer_off(_RAISE);
update_tri_layer(_LOWER, _RAISE, _ADJUST);
}
return false;
break;
case ADJUST:
if (record->event.pressed) {
layer_on(_ADJUST);
} else {
layer_off(_ADJUST);
}
return false;
break;
}
return true;
}

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keyboards/nyquist/matrix.c
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/*
Copyright 2017 Danny Nguyen <danny@hexwire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* scan matrix
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "split_util.h"
#include "pro_micro.h"
#include "config.h"
#ifdef USE_I2C
# include "i2c.h"
#else // USE_SERIAL
# include "serial.h"
#endif
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
#define ERROR_DISCONNECT_COUNT 5
static uint8_t debouncing = DEBOUNCE;
static const int ROWS_PER_HAND = MATRIX_ROWS/2;
static uint8_t error_count = 0;
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
static matrix_row_t read_cols(void);
static void init_cols(void);
static void unselect_rows(void);
static void select_row(uint8_t row);
__attribute__ ((weak))
void matrix_init_quantum(void) {
matrix_init_kb();
}
__attribute__ ((weak))
void matrix_scan_quantum(void) {
matrix_scan_kb();
}
__attribute__ ((weak))
void matrix_init_kb(void) {
matrix_init_user();
}
__attribute__ ((weak))
void matrix_scan_kb(void) {
matrix_scan_user();
}
__attribute__ ((weak))
void matrix_init_user(void) {
}
__attribute__ ((weak))
void matrix_scan_user(void) {
}
inline
uint8_t matrix_rows(void)
{
return MATRIX_ROWS;
}
inline
uint8_t matrix_cols(void)
{
return MATRIX_COLS;
}
void matrix_init(void)
{
debug_enable = true;
debug_matrix = true;
debug_mouse = true;
// initialize row and col
unselect_rows();
init_cols();
TX_RX_LED_INIT;
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
matrix_debouncing[i] = 0;
}
matrix_init_quantum();
}
uint8_t _matrix_scan(void)
{
// Right hand is stored after the left in the matirx so, we need to offset it
int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
select_row(i);
_delay_us(30); // without this wait read unstable value.
matrix_row_t cols = read_cols();
if (matrix_debouncing[i+offset] != cols) {
matrix_debouncing[i+offset] = cols;
debouncing = DEBOUNCE;
}
unselect_rows();
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
matrix[i+offset] = matrix_debouncing[i+offset];
}
}
}
return 1;
}
#ifdef USE_I2C
// Get rows from other half over i2c
int i2c_transaction(void) {
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
if (err) goto i2c_error;
// start of matrix stored at 0x00
err = i2c_master_write(0x00);
if (err) goto i2c_error;
// Start read
err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
if (err) goto i2c_error;
if (!err) {
int i;
for (i = 0; i < ROWS_PER_HAND-1; ++i) {
matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
}
matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
i2c_master_stop();
} else {
i2c_error: // the cable is disconnceted, or something else went wrong
i2c_reset_state();
return err;
}
return 0;
}
#else // USE_SERIAL
int serial_transaction(void) {
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
if (serial_update_buffers()) {
return 1;
}
for (int i = 0; i < ROWS_PER_HAND; ++i) {
matrix[slaveOffset+i] = serial_slave_buffer[i];
}
return 0;
}
#endif
uint8_t matrix_scan(void)
{
int ret = _matrix_scan();
#ifdef USE_I2C
if( i2c_transaction() ) {
#else // USE_SERIAL
if( serial_transaction() ) {
#endif
// turn on the indicator led when halves are disconnected
TXLED1;
error_count++;
if (error_count > ERROR_DISCONNECT_COUNT) {
// reset other half if disconnected
int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
for (int i = 0; i < ROWS_PER_HAND; ++i) {
matrix[slaveOffset+i] = 0;
}
}
} else {
// turn off the indicator led on no error
TXLED0;
error_count = 0;
}
matrix_scan_quantum();
return ret;
}
void matrix_slave_scan(void) {
_matrix_scan();
int offset = (isLeftHand) ? 0 : (MATRIX_ROWS / 2);
#ifdef USE_I2C
for (int i = 0; i < ROWS_PER_HAND; ++i) {
/* i2c_slave_buffer[i] = matrix[offset+i]; */
i2c_slave_buffer[i] = matrix[offset+i];
}
#else // USE_SERIAL
for (int i = 0; i < ROWS_PER_HAND; ++i) {
serial_slave_buffer[i] = matrix[offset+i];
}
#endif
}
bool matrix_is_modified(void)
{
if (debouncing) return false;
return true;
}
inline
bool matrix_is_on(uint8_t row, uint8_t col)
{
return (matrix[row] & ((matrix_row_t)1<<col));
}
inline
matrix_row_t matrix_get_row(uint8_t row)
{
return matrix[row];
}
void matrix_print(void)
{
print("\nr/c 0123456789ABCDEF\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
phex(row); print(": ");
pbin_reverse16(matrix_get_row(row));
print("\n");
}
}
uint8_t matrix_key_count(void)
{
uint8_t count = 0;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
count += bitpop16(matrix[i]);
}
return count;
}
static void init_cols(void)
{
for(int x = 0; x < MATRIX_COLS; x++) {
_SFR_IO8((col_pins[x] >> 4) + 1) &= ~_BV(col_pins[x] & 0xF);
_SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
}
}
static matrix_row_t read_cols(void)
{
matrix_row_t result = 0;
for(int x = 0; x < MATRIX_COLS; x++) {
result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
}
return result;
}
static void unselect_rows(void)
{
for(int x = 0; x < ROWS_PER_HAND; x++) {
_SFR_IO8((row_pins[x] >> 4) + 1) &= ~_BV(row_pins[x] & 0xF);
_SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
}
}
static void select_row(uint8_t row)
{
_SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF);
_SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
}

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keyboards/nyquist/nyquist.c
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#include "nyquist.h"

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keyboards/nyquist/nyquist.h
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#ifndef NYQUIST_H
#define NYQUIST_H
#ifdef SUBPROJECT_rev1
#include "rev1.h"
#endif
// Used to create a keymap using only KC_ prefixed keys
#define KC_KEYMAP( \
L00, L01, L02, L03, L04, L05, R00, R01, R02, R03, R04, R05, \
L10, L11, L12, L13, L14, L15, R10, R11, R12, R13, R14, R15, \
L20, L21, L22, L23, L24, L25, R20, R21, R22, R23, R24, R25, \
L30, L31, L32, L33, L34, L35, R30, R31, R32, R33, R34, R35, \
L40, L41, L42, L43, L44, L45, R40, R41, R42, R43, R44, R45 \
) \
KEYMAP( \
KC_##L00, KC_##L01, KC_##L02, KC_##L03, KC_##L04, KC_##L05, KC_##R00, KC_##R01, KC_##R02, KC_##R03, KC_##R04, KC_##R05, \
KC_##L10, KC_##L11, KC_##L12, KC_##L13, KC_##L14, KC_##L15, KC_##R10, KC_##R11, KC_##R12, KC_##R13, KC_##R14, KC_##R15, \
KC_##L20, KC_##L21, KC_##L22, KC_##L23, KC_##L24, KC_##L25, KC_##R20, KC_##R21, KC_##R22, KC_##R23, KC_##R24, KC_##R25, \
KC_##L30, KC_##L31, KC_##L32, KC_##L33, KC_##L34, KC_##L35, KC_##R30, KC_##R31, KC_##R32, KC_##R33, KC_##R34, KC_##R35, \
KC_##L40, KC_##L41, KC_##L42, KC_##L43, KC_##L44, KC_##L45, KC_##R40, KC_##R41, KC_##R42, KC_##R43, KC_##R44, KC_##R45 \
)
#include "quantum.h"
#endif

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keyboards/nyquist/pro_micro.h
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/*
pins_arduino.h - Pin definition functions for Arduino
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2007 David A. Mellis
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
$Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
*/
#ifndef Pins_Arduino_h
#define Pins_Arduino_h
#include <avr/pgmspace.h>
// Workaround for wrong definitions in "iom32u4.h".
// This should be fixed in the AVR toolchain.
#undef UHCON
#undef UHINT
#undef UHIEN
#undef UHADDR
#undef UHFNUM
#undef UHFNUML
#undef UHFNUMH
#undef UHFLEN
#undef UPINRQX
#undef UPINTX
#undef UPNUM
#undef UPRST
#undef UPCONX
#undef UPCFG0X
#undef UPCFG1X
#undef UPSTAX
#undef UPCFG2X
#undef UPIENX
#undef UPDATX
#undef TCCR2A
#undef WGM20
#undef WGM21
#undef COM2B0
#undef COM2B1
#undef COM2A0
#undef COM2A1
#undef TCCR2B
#undef CS20
#undef CS21
#undef CS22
#undef WGM22
#undef FOC2B
#undef FOC2A
#undef TCNT2
#undef TCNT2_0
#undef TCNT2_1
#undef TCNT2_2
#undef TCNT2_3
#undef TCNT2_4
#undef TCNT2_5
#undef TCNT2_6
#undef TCNT2_7
#undef OCR2A
#undef OCR2_0
#undef OCR2_1
#undef OCR2_2
#undef OCR2_3
#undef OCR2_4
#undef OCR2_5
#undef OCR2_6
#undef OCR2_7
#undef OCR2B
#undef OCR2_0
#undef OCR2_1
#undef OCR2_2
#undef OCR2_3
#undef OCR2_4
#undef OCR2_5
#undef OCR2_6
#undef OCR2_7
#define NUM_DIGITAL_PINS 30
#define NUM_ANALOG_INPUTS 12
#define TX_RX_LED_INIT DDRD |= (1<<5), DDRB |= (1<<0)
#define TXLED0 PORTD |= (1<<5)
#define TXLED1 PORTD &= ~(1<<5)
#define RXLED0 PORTB |= (1<<0)
#define RXLED1 PORTB &= ~(1<<0)
static const uint8_t SDA = 2;
static const uint8_t SCL = 3;
#define LED_BUILTIN 13
// Map SPI port to 'new' pins D14..D17
static const uint8_t SS = 17;
static const uint8_t MOSI = 16;
static const uint8_t MISO = 14;
static const uint8_t SCK = 15;
// Mapping of analog pins as digital I/O
// A6-A11 share with digital pins
static const uint8_t ADC0 = 18;
static const uint8_t ADC1 = 19;
static const uint8_t ADC2 = 20;
static const uint8_t ADC3 = 21;
static const uint8_t ADC4 = 22;
static const uint8_t ADC5 = 23;
static const uint8_t ADC6 = 24; // D4
static const uint8_t ADC7 = 25; // D6
static const uint8_t ADC8 = 26; // D8
static const uint8_t ADC9 = 27; // D9
static const uint8_t ADC10 = 28; // D10
static const uint8_t ADC11 = 29; // D12
#define digitalPinToPCICR(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCICR) : ((uint8_t *)0))
#define digitalPinToPCICRbit(p) 0
#define digitalPinToPCMSK(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCMSK0) : ((uint8_t *)0))
#define digitalPinToPCMSKbit(p) ( ((p) >= 8 && (p) <= 11) ? (p) - 4 : ((p) == 14 ? 3 : ((p) == 15 ? 1 : ((p) == 16 ? 2 : ((p) == 17 ? 0 : (p - A8 + 4))))))
// __AVR_ATmega32U4__ has an unusual mapping of pins to channels
extern const uint8_t PROGMEM analog_pin_to_channel_PGM[];
#define analogPinToChannel(P) ( pgm_read_byte( analog_pin_to_channel_PGM + (P) ) )
#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
#ifdef ARDUINO_MAIN
// On the Arduino board, digital pins are also used
// for the analog output (software PWM). Analog input
// pins are a separate set.
// ATMEL ATMEGA32U4 / ARDUINO LEONARDO
//
// D0 PD2 RXD1/INT2
// D1 PD3 TXD1/INT3
// D2 PD1 SDA SDA/INT1
// D3# PD0 PWM8/SCL OC0B/SCL/INT0
// D4 A6 PD4 ADC8
// D5# PC6 ??? OC3A/#OC4A
// D6# A7 PD7 FastPWM #OC4D/ADC10
// D7 PE6 INT6/AIN0
//
// D8 A8 PB4 ADC11/PCINT4
// D9# A9 PB5 PWM16 OC1A/#OC4B/ADC12/PCINT5
// D10# A10 PB6 PWM16 OC1B/0c4B/ADC13/PCINT6
// D11# PB7 PWM8/16 0C0A/OC1C/#RTS/PCINT7
// D12 A11 PD6 T1/#OC4D/ADC9
// D13# PC7 PWM10 CLK0/OC4A
//
// A0 D18 PF7 ADC7
// A1 D19 PF6 ADC6
// A2 D20 PF5 ADC5
// A3 D21 PF4 ADC4
// A4 D22 PF1 ADC1
// A5 D23 PF0 ADC0
//
// New pins D14..D17 to map SPI port to digital pins
//
// MISO D14 PB3 MISO,PCINT3
// SCK D15 PB1 SCK,PCINT1
// MOSI D16 PB2 MOSI,PCINT2
// SS D17 PB0 RXLED,SS/PCINT0
//
// Connected LEDs on board for TX and RX
// TXLED D24 PD5 XCK1
// RXLED D17 PB0
// HWB PE2 HWB
// these arrays map port names (e.g. port B) to the
// appropriate addresses for various functions (e.g. reading
// and writing)
const uint16_t PROGMEM port_to_mode_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
(uint16_t) &DDRB,
(uint16_t) &DDRC,
(uint16_t) &DDRD,
(uint16_t) &DDRE,
(uint16_t) &DDRF,
};
const uint16_t PROGMEM port_to_output_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
(uint16_t) &PORTB,
(uint16_t) &PORTC,
(uint16_t) &PORTD,
(uint16_t) &PORTE,
(uint16_t) &PORTF,
};
const uint16_t PROGMEM port_to_input_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
(uint16_t) &PINB,
(uint16_t) &PINC,
(uint16_t) &PIND,
(uint16_t) &PINE,
(uint16_t) &PINF,
};
const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
PD, // D0 - PD2
PD, // D1 - PD3
PD, // D2 - PD1
PD, // D3 - PD0
PD, // D4 - PD4
PC, // D5 - PC6
PD, // D6 - PD7
PE, // D7 - PE6
PB, // D8 - PB4
PB, // D9 - PB5
PB, // D10 - PB6
PB, // D11 - PB7
PD, // D12 - PD6
PC, // D13 - PC7
PB, // D14 - MISO - PB3
PB, // D15 - SCK - PB1
PB, // D16 - MOSI - PB2
PB, // D17 - SS - PB0
PF, // D18 - A0 - PF7
PF, // D19 - A1 - PF6
PF, // D20 - A2 - PF5
PF, // D21 - A3 - PF4
PF, // D22 - A4 - PF1
PF, // D23 - A5 - PF0
PD, // D24 - PD5
PD, // D25 / D6 - A7 - PD7
PB, // D26 / D8 - A8 - PB4
PB, // D27 / D9 - A9 - PB5
PB, // D28 / D10 - A10 - PB6
PD, // D29 / D12 - A11 - PD6
};
const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
_BV(2), // D0 - PD2
_BV(3), // D1 - PD3
_BV(1), // D2 - PD1
_BV(0), // D3 - PD0
_BV(4), // D4 - PD4
_BV(6), // D5 - PC6
_BV(7), // D6 - PD7
_BV(6), // D7 - PE6
_BV(4), // D8 - PB4
_BV(5), // D9 - PB5
_BV(6), // D10 - PB6
_BV(7), // D11 - PB7
_BV(6), // D12 - PD6
_BV(7), // D13 - PC7
_BV(3), // D14 - MISO - PB3
_BV(1), // D15 - SCK - PB1
_BV(2), // D16 - MOSI - PB2
_BV(0), // D17 - SS - PB0
_BV(7), // D18 - A0 - PF7
_BV(6), // D19 - A1 - PF6
_BV(5), // D20 - A2 - PF5
_BV(4), // D21 - A3 - PF4
_BV(1), // D22 - A4 - PF1
_BV(0), // D23 - A5 - PF0
_BV(5), // D24 - PD5
_BV(7), // D25 / D6 - A7 - PD7
_BV(4), // D26 / D8 - A8 - PB4
_BV(5), // D27 / D9 - A9 - PB5
_BV(6), // D28 / D10 - A10 - PB6
_BV(6), // D29 / D12 - A11 - PD6
};
const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
TIMER0B, /* 3 */
NOT_ON_TIMER,
TIMER3A, /* 5 */
TIMER4D, /* 6 */
NOT_ON_TIMER,
NOT_ON_TIMER,
TIMER1A, /* 9 */
TIMER1B, /* 10 */
TIMER0A, /* 11 */
NOT_ON_TIMER,
TIMER4A, /* 13 */
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
};
const uint8_t PROGMEM analog_pin_to_channel_PGM[] = {
7, // A0 PF7 ADC7
6, // A1 PF6 ADC6
5, // A2 PF5 ADC5
4, // A3 PF4 ADC4
1, // A4 PF1 ADC1
0, // A5 PF0 ADC0
8, // A6 D4 PD4 ADC8
10, // A7 D6 PD7 ADC10
11, // A8 D8 PB4 ADC11
12, // A9 D9 PB5 ADC12
13, // A10 D10 PB6 ADC13
9 // A11 D12 PD6 ADC9
};
#endif /* ARDUINO_MAIN */
// These serial port names are intended to allow libraries and architecture-neutral
// sketches to automatically default to the correct port name for a particular type
// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
// the first hardware serial port whose RX/TX pins are not dedicated to another use.
//
// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor
//
// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial
//
// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library
//
// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins.
//
// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX
// pins are NOT connected to anything by default.
#define SERIAL_PORT_MONITOR Serial
#define SERIAL_PORT_USBVIRTUAL Serial
#define SERIAL_PORT_HARDWARE Serial1
#define SERIAL_PORT_HARDWARE_OPEN Serial1
#endif /* Pins_Arduino_h */

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The Nyquist Keyboard
====================
The Nyquist is a 60% split ortholinear board by [Keebio](https://keeb.io). It has been designed in a similar manner to the Let's Split v2 by /u/wootpatoot. Each half of the keyboard is arranged in a 5x6 grid. There is an option to use a 2u key with PCB mounted MX stablizers, in place of the two innermost 1u keys on the bottom row.
## Build Guide
Since the design is very similar to the Let's Split v2, the build guide for that can be used while the build guide for the Nyquist is being fully developed. A build guide for putting together the Let's Split v2 can be found here: [An Overly Verbose Guide to Building a Let's Split Keyboard](https://github.com/nicinabox/lets-split-guide)
There is additional information there about flashing and adding RGB underglow.
## First Time Setup
Download or clone the whole firmware and navigate to the keyboards/nyquist directory. Once your development environment is setup, you'll be able to generate the default .hex using:
```
$ make serial
```
You will see a lot of output and if everything worked correctly you will see the built hex file:
```
nyquist_rev1_serial.hex
```
If you would like to use one of the alternative keymaps, or create your own, copy one of the existing [keymaps](keymaps/) and run make like so:
```
$ make YOUR_KEYMAP_NAME
```
If everything worked correctly you will see a file:
```
nyquist_rev1_YOUR_KEYMAP_NAME.hex
```
For more information on customizing keymaps, take a look at the primary documentation for [Customizing Your Keymap](/readme.md##customizing-your-keymap) in the main readme.md.
Features
--------
For the full Quantum Mechanical Keyboard feature list, see [the parent readme.md](/readme.md).
Some features supported by the firmware:
* Either half can connect to the computer via USB, or both halves can be used
independently.
* You only need 3 wires to connect the two halves. Two for VCC and GND and one
for serial communication.
* Optional support for I2C connection between the two halves if for some
reason you require a faster connection between the two halves. Note this
requires an extra wire between halves and pull-up resistors on the data lines.
### 2u Support
In place of the two innermost 1u keys on the bottom row, a single 2u key can be used. If you choose to use this option, then in your keymap, set the innermost key on the bottom row to what you want the 2u key to be. For example, if using the 2u key on the left half of the board, set the keycode for the lower right key.
Required Hardware
-----------------
Apart from diodes and key switches for the keyboard matrix in each half, you
will need:
* 2 Arduino Pro Micro's. You can find theses on aliexpress for ≈3.50USD each.
* 2 TRRS sockets and 1 TRRS cable, or 2 TRS sockets and 1 TRS cable
Alternatively, you can use any sort of cable and socket that has at least 3
wires. If you want to use I2C to communicate between halves, you will need a
cable with at least 4 wires and 2x 4.7kΩ pull-up resistors
Optional Hardware
-----------------
A speaker can be hooked-up to either side to the `5` (`C6`) pin and `GND`, and turned on via `AUDIO_ENABLE`.
Wiring
------
The 3 wires of the TRS/TRRS cable need to connect GND, VCC, and digital pin 3 (i.e.
PD0 on the ATmega32u4) between the two Pro Micros.
Then wire your key matrix to any of the remaining 17 IO pins of the pro micro
and modify the `matrix.c` accordingly.
The wiring for serial:
![serial wiring](imgs/split-keyboard-serial-schematic.png)
The wiring for i2c:
![i2c wiring](imgs/split-keyboard-i2c-schematic.png)
The pull-up resistors may be placed on either half. It is also possible
to use 4 resistors and have the pull-ups in both halves, but this is
unnecessary in simple use cases.
Flashing
-------
From the keymap directory run `make SUBPROJECT-KEYMAP-avrdude` for automatic serial port resolution and flashing.
Example: `make rev1-serial-avrdude`
Choosing which board to plug the USB cable into (choosing Master)
--------
Because the two boards are identical, the firmware has logic to differentiate the left and right board.
It uses two strategies to figure things out: look at the EEPROM (memory on the chip) or looks if the current board has the usb cable.
The EEPROM approach requires additional setup (flashing the eeeprom) but allows you to swap the usb cable to either side.
The USB cable approach is easier to setup and if you just want the usb cable on the left board, you do not need to do anything extra.
### Setting the left hand as master
If you always plug the usb cable into the left board, nothing extra is needed as this is the default. Comment out `EE_HANDS` and comment out `I2C_MASTER_RIGHT` or `MASTER_RIGHT` if for some reason it was set.
### Setting the right hand as master
If you always plug the usb cable into the right board, add an extra flag to your `config.h`
```
#define MASTER_RIGHT
```
### Setting EE_hands to use either hands as master
If you define `EE_HANDS` in your `config.h`, you will need to set the
EEPROM for the left and right halves.
The EEPROM is used to store whether the
half is left handed or right handed. This makes it so that the same firmware
file will run on both hands instead of having to flash left and right handed
versions of the firmware to each half. To flash the EEPROM file for the left
half run:
```
avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-lefthand.eep
// or the equivalent in dfu-programmer
```
and similarly for right half
```
avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-righhand.eep
// or the equivalent in dfu-programmer
```
NOTE: replace `$(COM_PORT)` with the port of your device (e.g. `/dev/ttyACM0`)
After you have flashed the EEPROM, you then need to set `EE_HANDS` in your config.h, rebuild the hex files and reflash.
Note that you need to program both halves, but you have the option of using
different keymaps for each half. You could program the left half with a QWERTY
layout and the right half with a Colemak layout using bootmagic's default layout option.
Then if you connect the left half to a computer by USB the keyboard will use QWERTY and Colemak when the
right half is connected.
Notes on Using Pro Micro 3.3V
-----------------------------
Do update the `F_CPU` parameter in `rules.mk` to `8000000` which reflects
the frequency on the 3.3V board.
Also, if the slave board is producing weird characters in certain columns,
update the following line in `matrix.c` to the following:
```
// _delay_us(30); // without this wait read unstable value.
_delay_us(300); // without this wait read unstable value.
```

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ifndef MAKEFILE_INCLUDED
include ../../Makefile
endif

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/*
Copyright 2017 Danny Nguyen <danny@hexwire.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONFIG_H
#define CONFIG_H
#include "config_common.h"
/* USB Device descriptor parameter */
#define VENDOR_ID 0xCEEB
#define PRODUCT_ID 0x1156
#define DEVICE_VER 0x0100
#define MANUFACTURER Keebio
#define PRODUCT The Nyquist Keyboard
#define DESCRIPTION Split 60 percent ortholinear keyboard
/* key matrix size */
// Rows are doubled-up
#define MATRIX_ROWS 10
#define MATRIX_COLS 6
// wiring of each half
#define MATRIX_ROW_PINS { D4, D7, E6, B4, B5 }
#define MATRIX_COL_PINS { F6, F7, B1, B3, B2, B6 }
#define CATERINA_BOOTLOADER
/* COL2ROW or ROW2COL */
#define DIODE_DIRECTION COL2ROW
/* define if matrix has ghost */
//#define MATRIX_HAS_GHOST
/* number of backlight levels */
// #define BACKLIGHT_LEVELS 3
/* Set 0 if debouncing isn't needed */
#define DEBOUNCING_DELAY 5
/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
#define LOCKING_SUPPORT_ENABLE
/* Locking resynchronize hack */
#define LOCKING_RESYNC_ENABLE
/* key combination for command */
#define IS_COMMAND() ( \
keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)
/* ws2812 RGB LED */
#define RGB_DI_PIN D3
#define RGBLIGHT_TIMER
#define RGBLED_NUM 16 // Number of LEDs
#define ws2812_PORTREG PORTD
#define ws2812_DDRREG DDRD
/*
* Feature disable options
* These options are also useful to firmware size reduction.
*/
/* disable debug print */
// #define NO_DEBUG
/* disable print */
// #define NO_PRINT
/* disable action features */
//#define NO_ACTION_LAYER
//#define NO_ACTION_TAPPING
//#define NO_ACTION_ONESHOT
//#define NO_ACTION_MACRO
//#define NO_ACTION_FUNCTION
#endif

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#include "nyquist.h"
#ifdef AUDIO_ENABLE
float tone_startup[][2] = SONG(STARTUP_SOUND);
float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
#endif
#ifdef SSD1306OLED
void led_set_kb(uint8_t usb_led) {
// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
led_set_user(usb_led);
}
#endif
void matrix_init_kb(void) {
#ifdef AUDIO_ENABLE
_delay_ms(20); // gets rid of tick
PLAY_NOTE_ARRAY(tone_startup, false, 0);
#endif
// // green led on
// DDRD |= (1<<5);
// PORTD &= ~(1<<5);
// // orange led on
// DDRB |= (1<<0);
// PORTB &= ~(1<<0);
matrix_init_user();
};
void shutdown_user(void) {
#ifdef AUDIO_ENABLE
PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
_delay_ms(150);
stop_all_notes();
#endif
}

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#ifndef REV1_H
#define REV1_H
#include "../nyquist.h"
//void promicro_bootloader_jmp(bool program);
#include "quantum.h"
#ifdef USE_I2C
#include <stddef.h>
#ifdef __AVR__
#include <avr/io.h>
#include <avr/interrupt.h>
#endif
#endif
//void promicro_bootloader_jmp(bool program);
#ifndef FLIP_HALF
// Standard Keymap
// (TRRS jack on the left half is to the right, TRRS jack on the right half is to the left)
#define KEYMAP( \
L00, L01, L02, L03, L04, L05, R00, R01, R02, R03, R04, R05, \
L10, L11, L12, L13, L14, L15, R10, R11, R12, R13, R14, R15, \
L20, L21, L22, L23, L24, L25, R20, R21, R22, R23, R24, R25, \
L30, L31, L32, L33, L34, L35, R30, R31, R32, R33, R34, R35, \
L40, L41, L42, L43, L44, L45, R40, R41, R42, R43, R44, R45 \
) \
{ \
{ L00, L01, L02, L03, L04, L05 }, \
{ L10, L11, L12, L13, L14, L15 }, \
{ L20, L21, L22, L23, L24, L25 }, \
{ L30, L31, L32, L33, L34, L35 }, \
{ L40, L41, L42, L43, L44, L45 }, \
{ R05, R04, R03, R02, R01, R00 }, \
{ R15, R14, R13, R12, R11, R10 }, \
{ R25, R24, R23, R22, R21, R20 }, \
{ R35, R34, R33, R32, R31, R30 }, \
{ R45, R44, R43, R42, R41, R40 } \
}
#else
// Keymap with right side flipped
// (TRRS jack on both halves are to the right)
#define KEYMAP( \
L00, L01, L02, L03, L04, L05, R00, R01, R02, R03, R04, R05, \
L10, L11, L12, L13, L14, L15, R10, R11, R12, R13, R14, R15, \
L20, L21, L22, L23, L24, L25, R20, R21, R22, R23, R24, R25, \
L30, L31, L32, L33, L34, L35, R30, R31, R32, R33, R34, R35, \
L40, L41, L42, L43, L44, L45, R40, R41, R42, R43, R44, R45 \
) \
{ \
{ L00, L01, L02, L03, L04, L05 }, \
{ L10, L11, L12, L13, L14, L15 }, \
{ L20, L21, L22, L23, L24, L25 }, \
{ L30, L31, L32, L33, L34, L35 }, \
{ L40, L41, L42, L43, L44, L45 }, \
{ R00, R01, R02, R03, R04, R05 }, \
{ R10, R11, R12, R13, R14, R15 }, \
{ R20, R21, R22, R23, R24, R25 }, \
{ R30, R31, R32, R33, R34, R35 }, \
{ R40, R41, R42, R43, R44, R45 } \
}
#endif
#endif

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BACKLIGHT_ENABLE = no
ifndef QUANTUM_DIR
include ../../../Makefile
endif

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keyboards/nyquist/rules.mk
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SRC += matrix.c \
i2c.c \
split_util.c \
serial.c
# MCU name
#MCU = at90usb1287
MCU = atmega32u4
# Processor frequency.
# This will define a symbol, F_CPU, in all source code files equal to the
# processor frequency in Hz. You can then use this symbol in your source code to
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
#
# This will be an integer division of F_USB below, as it is sourced by
# F_USB after it has run through any CPU prescalers. Note that this value
# does not *change* the processor frequency - it should merely be updated to
# reflect the processor speed set externally so that the code can use accurate
# software delays.
F_CPU = 16000000
#
# LUFA specific
#
# Target architecture (see library "Board Types" documentation).
ARCH = AVR8
# Input clock frequency.
# This will define a symbol, F_USB, in all source code files equal to the
# input clock frequency (before any prescaling is performed) in Hz. This value may
# differ from F_CPU if prescaling is used on the latter, and is required as the
# raw input clock is fed directly to the PLL sections of the AVR for high speed
# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
# at the end, this will be done automatically to create a 32-bit value in your
# source code.
#
# If no clock division is performed on the input clock inside the AVR (via the
# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
F_USB = $(F_CPU)
# Interrupt driven control endpoint task(+60)
OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
# Boot Section Size in *bytes*
# Teensy halfKay 512
# Teensy++ halfKay 1024
# Atmel DFU loader 4096
# LUFA bootloader 4096
# USBaspLoader 2048
OPT_DEFS += -DBOOTLOADER_SIZE=4096
# Build Options
# change to "no" to disable the options, or define them in the Makefile in
# the appropriate keymap folder that will get included automatically
#
BOOTMAGIC_ENABLE ?= no # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE ?= yes # Mouse keys(+4700)
EXTRAKEY_ENABLE ?= yes # Audio control and System control(+450)
CONSOLE_ENABLE ?= no # Console for debug(+400)
COMMAND_ENABLE ?= yes # Commands for debug and configuration
NKRO_ENABLE ?= no # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
BACKLIGHT_ENABLE ?= no # Enable keyboard backlight functionality
MIDI_ENABLE ?= no # MIDI controls
AUDIO_ENABLE ?= no # Audio output on port C6
UNICODE_ENABLE ?= no # Unicode
BLUETOOTH_ENABLE ?= no # Enable Bluetooth with the Adafruit EZ-Key HID
RGBLIGHT_ENABLE ?= no # Enable WS2812 RGB underlight. Do not enable this with audio at the same time.
SUBPROJECT_rev1 ?= yes
USE_I2C ?= yes
# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE ?= no # Breathing sleep LED during USB suspend
CUSTOM_MATRIX = yes
avrdude: build
ls /dev/tty* > /tmp/1; \
echo "Reset your Pro Micro now"; \
while [[ -z $$USB ]]; do \
sleep 1; \
ls /dev/tty* > /tmp/2; \
USB=`diff /tmp/1 /tmp/2 | grep -o '/dev/tty.*'`; \
done; \
avrdude -p $(MCU) -c avr109 -P $$USB -U flash:w:$(BUILD_DIR)/$(TARGET).hex
.PHONY: avrdude

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/*
* WARNING: be careful changing this code, it is very timing dependent
*/
#ifndef F_CPU
#define F_CPU 16000000
#endif
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <stdbool.h>
#include "serial.h"
#ifdef USE_SERIAL
// Serial pulse period in microseconds. Its probably a bad idea to lower this
// value.
#define SERIAL_DELAY 24
uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
#define SLAVE_DATA_CORRUPT (1<<0)
volatile uint8_t status = 0;
inline static
void serial_delay(void) {
_delay_us(SERIAL_DELAY);
}
inline static
void serial_output(void) {
SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
}
// make the serial pin an input with pull-up resistor
inline static
void serial_input(void) {
SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK;
SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
}
inline static
uint8_t serial_read_pin(void) {
return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
}
inline static
void serial_low(void) {
SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
}
inline static
void serial_high(void) {
SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
}
void serial_master_init(void) {
serial_output();
serial_high();
}
void serial_slave_init(void) {
serial_input();
// Enable INT0
EIMSK |= _BV(INT0);
// Trigger on falling edge of INT0
EICRA &= ~(_BV(ISC00) | _BV(ISC01));
}
// Used by the master to synchronize timing with the slave.
static
void sync_recv(void) {
serial_input();
// This shouldn't hang if the slave disconnects because the
// serial line will float to high if the slave does disconnect.
while (!serial_read_pin());
serial_delay();
}
// Used by the slave to send a synchronization signal to the master.
static
void sync_send(void) {
serial_output();
serial_low();
serial_delay();
serial_high();
}
// Reads a byte from the serial line
static
uint8_t serial_read_byte(void) {
uint8_t byte = 0;
serial_input();
for ( uint8_t i = 0; i < 8; ++i) {
byte = (byte << 1) | serial_read_pin();
serial_delay();
_delay_us(1);
}
return byte;
}
// Sends a byte with MSB ordering
static
void serial_write_byte(uint8_t data) {
uint8_t b = 8;
serial_output();
while( b-- ) {
if(data & (1 << b)) {
serial_high();
} else {
serial_low();
}
serial_delay();
}
}
// interrupt handle to be used by the slave device
ISR(SERIAL_PIN_INTERRUPT) {
sync_send();
uint8_t checksum = 0;
for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
serial_write_byte(serial_slave_buffer[i]);
sync_send();
checksum += serial_slave_buffer[i];
}
serial_write_byte(checksum);
sync_send();
// wait for the sync to finish sending
serial_delay();
// read the middle of pulses
_delay_us(SERIAL_DELAY/2);
uint8_t checksum_computed = 0;
for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
serial_master_buffer[i] = serial_read_byte();
sync_send();
checksum_computed += serial_master_buffer[i];
}
uint8_t checksum_received = serial_read_byte();
sync_send();
serial_input(); // end transaction
if ( checksum_computed != checksum_received ) {
status |= SLAVE_DATA_CORRUPT;
} else {
status &= ~SLAVE_DATA_CORRUPT;
}
}
inline
bool serial_slave_DATA_CORRUPT(void) {
return status & SLAVE_DATA_CORRUPT;
}
// Copies the serial_slave_buffer to the master and sends the
// serial_master_buffer to the slave.
//
// Returns:
// 0 => no error
// 1 => slave did not respond
int serial_update_buffers(void) {
// this code is very time dependent, so we need to disable interrupts
cli();
// signal to the slave that we want to start a transaction
serial_output();
serial_low();
_delay_us(1);
// wait for the slaves response
serial_input();
serial_high();
_delay_us(SERIAL_DELAY);
// check if the slave is present
if (serial_read_pin()) {
// slave failed to pull the line low, assume not present
sei();
return 1;
}
// if the slave is present syncronize with it
sync_recv();
uint8_t checksum_computed = 0;
// receive data from the slave
for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
serial_slave_buffer[i] = serial_read_byte();
sync_recv();
checksum_computed += serial_slave_buffer[i];
}
uint8_t checksum_received = serial_read_byte();
sync_recv();
if (checksum_computed != checksum_received) {
sei();
return 1;
}
uint8_t checksum = 0;
// send data to the slave
for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
serial_write_byte(serial_master_buffer[i]);
sync_recv();
checksum += serial_master_buffer[i];
}
serial_write_byte(checksum);
sync_recv();
// always, release the line when not in use
serial_output();
serial_high();
sei();
return 0;
}
#endif

26
keyboards/nyquist/serial.h
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#ifndef MY_SERIAL_H
#define MY_SERIAL_H
#include "config.h"
#include <stdbool.h>
/* TODO: some defines for interrupt setup */
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#define SERIAL_PIN_MASK _BV(PD0)
#define SERIAL_PIN_INTERRUPT INT0_vect
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
#define SERIAL_MASTER_BUFFER_LENGTH 1
// Buffers for master - slave communication
extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
void serial_master_init(void);
void serial_slave_init(void);
int serial_update_buffers(void);
bool serial_slave_data_corrupt(void);
#endif

84
keyboards/nyquist/split_util.c
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#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/power.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <avr/eeprom.h>
#include "split_util.h"
#include "matrix.h"
#include "keyboard.h"
#include "config.h"
#ifdef USE_I2C
# include "i2c.h"
#else
# include "serial.h"
#endif
volatile bool isLeftHand = true;
static void setup_handedness(void) {
#ifdef EE_HANDS
isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
#else
// I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
#if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
isLeftHand = !has_usb();
#else
isLeftHand = has_usb();
#endif
#endif
}
static void keyboard_master_setup(void) {
#ifdef USE_I2C
i2c_master_init();
#ifdef SSD1306OLED
matrix_master_OLED_init ();
#endif
#else
serial_master_init();
#endif
}
static void keyboard_slave_setup(void) {
#ifdef USE_I2C
i2c_slave_init(SLAVE_I2C_ADDRESS);
#else
serial_slave_init();
#endif
}
bool has_usb(void) {
USBCON |= (1 << OTGPADE); //enables VBUS pad
_delay_us(5);
return (USBSTA & (1<<VBUS)); //checks state of VBUS
}
void split_keyboard_setup(void) {
setup_handedness();
if (has_usb()) {
keyboard_master_setup();
} else {
keyboard_slave_setup();
}
sei();
}
void keyboard_slave_loop(void) {
matrix_init();
while (1) {
matrix_slave_scan();
}
}
// this code runs before the usb and keyboard is initialized
void matrix_setup(void) {
split_keyboard_setup();
if (!has_usb()) {
keyboard_slave_loop();
}
}

24
keyboards/nyquist/split_util.h
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#ifndef SPLIT_KEYBOARD_UTIL_H
#define SPLIT_KEYBOARD_UTIL_H
#include <stdbool.h>
#ifdef EE_HANDS
#define EECONFIG_BOOTMAGIC_END (uint8_t *)10
#define EECONFIG_HANDEDNESS EECONFIG_BOOTMAGIC_END
#endif
#define SLAVE_I2C_ADDRESS 0x32
extern volatile bool isLeftHand;
// slave version of matix scan, defined in matrix.c
void matrix_slave_scan(void);
void split_keyboard_setup(void);
bool has_usb(void);
void keyboard_slave_loop(void);
void matrix_master_OLED_init (void);
#endif
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