- The difference with the original let's split's serial.c
- It's high-speed about 4 times.
- Stable bi-directional data transfer. (Helix need master to slave transfer)
- serial.h was divided 2 files, serial_config.h and sereial.h
- With multiple types of transaction support, communication contents can be optimized. (NEW flexible API)
- USE OLD Simple APIs (compatible with let's split serial.c)
- files :
- serial_config.h -- hardware configuration (need include by config.h)
- serial.c/serial.h -- serial communication
- USE NEW flexible APIs. (Support multi-type transaction function.)
serial.c was divided into 2 layers, split_scom.c and serial.c.
The upper layer split_scomm.c is called from matrix.c.
The lower layer serial.c accesses the hardware.
- files
- split_scomm.c -- communication buffer is defined in here. call by matrix.c.
- split_scomm.h -- buffer size is defined in here. include by matrix.c, split_util.c
- serial_config.h -- hardware configuration (need include by config.h)
To use the NEW API, specify #define SERIAL_USE_MULTI_TRANSACTION
- serial.c/serial.h -- serial communication lower layer
- NEW APIs for serial.c / serial.h (The lower layer)
// Soft Serial Transaction Descriptor
typedef struct _SSTD_t {
uint8_t *status;
uint8_t initiator2target_buffer_size;
uint8_t *initiator2target_buffer;
uint8_t target2initiator_buffer_size;
uint8_t *target2initiator_buffer;
} SSTD_t;
// initiator is transaction start side
void soft_serial_initiator_init(SSTD_t *sstd_table);
// target is interrupt accept side
void soft_serial_target_init(SSTD_t *sstd_table);
int soft_serial_transaction(int sstd_index);
int soft_serial_get_and_clean_target_status(int sstd_index);
- NEW APIs for split_scomm.c / split_scomm.h (The upper layer)
move from old serial.c the following buffer and functions
serial_slave_buffer[]
serial_master_buffer[]
void serial_master_init(void)
void serial_slave_init(void)
int serial_update_buffers(void)
define SERIAL_xxxxx_BUFFER_LENGTH move from serial_config.h to split_scomm.h
pull/3608/head
mtei
7 years ago
parent
7299d961b6
commit
8142a3c740
@ -1,5 +1,4 @@
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SRC += rev1/matrix.c
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SRC += rev1/split_util.c
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SRC += rev1/split_scomm.c
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BACKLIGHT_ENABLE = no
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@ -1,36 +0,0 @@
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#ifdef USE_SERIAL
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <split_scomm.h>
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#include "serial.h"
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uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
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uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
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uint8_t volatile status0 = 0;
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SSTD_t transactions[] = {
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{ (uint8_t *)&status0,
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sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
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sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
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}
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};
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void serial_master_init(void)
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{
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soft_serial_initiator_init(transactions);
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}
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void serial_slave_init(void)
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{
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soft_serial_target_init(transactions);
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}
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// 0 => no error
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// 1 => slave did not respond
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// 2 => checksum error
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int serial_update_buffers(int master_update)
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{
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return soft_serial_transaction();
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}
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#endif /* USE_SERIAL */
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@ -1,15 +0,0 @@
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#ifndef SPLIT_COMM_H
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#define SPLIT_COMM_H
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// Buffers for master - slave communication
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#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
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#define SERIAL_MASTER_BUFFER_LENGTH 1
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extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
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extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
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void serial_master_init(void);
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void serial_slave_init(void);
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int serial_update_buffers(int master_changed);
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#endif /* SPLIT_COMM_H */
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@ -0,0 +1,8 @@
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#ifndef SERIAL_CONFIG_SIMPLEAPI_H
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#define SERIAL_CONFIG_SIMPLEAPI_H
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#undef SERIAL_USE_MULTI_TRANSACTION
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#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
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#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
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#endif // SERIAL_CONFIG_SIMPLEAPI_H
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@ -1,18 +1,24 @@
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#ifndef SPLIT_COMM_H
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#define SPLIT_COMM_H
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#ifndef SERIAL_USE_MULTI_TRANSACTION
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/* --- USE Simple API (OLD API, compatible with let's split serial.c) --- */
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#include "serial.h"
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#else
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/* --- USE flexible API (using multi-type transaction function) --- */
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// Buffers for master - slave communication
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#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
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#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
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extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
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extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
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#ifdef SERIAL_USE_MULTI_TRANSACTION
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extern uint8_t slave_buffer_change_count;
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#endif
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void serial_master_init(void);
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void serial_slave_init(void);
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int serial_update_buffers(int master_changed);
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#endif
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#endif /* SPLIT_COMM_H */
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