Started implementing the low level PDI protocol in the AVRISP project, for XMEGA device programming.
parent
f92b56191d
commit
f69f03cb0d
File diff suppressed because one or more lines are too long
@ -0,0 +1,105 @@
|
||||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2009.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
Permission to use, copy, modify, and distribute this software
|
||||
and its documentation for any purpose and without fee is hereby
|
||||
granted, provided that the above copyright notice appear in all
|
||||
copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
#if defined(ENABLE_XPROG_PROTOCOL)
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Target-related functions for the PDI Protocol decoder.
|
||||
*/
|
||||
|
||||
#define INCLUDE_FROM_PDITARGET_C
|
||||
#include "PDITarget.h"
|
||||
|
||||
void PDITarget_SendByte(uint8_t Byte)
|
||||
{
|
||||
PDIDATA_LINE_PORT &= ~PDIDATA_LINE_MASK;
|
||||
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
|
||||
for (uint8_t i = 0; i < 8; i++)
|
||||
{
|
||||
if (Byte & 0x01)
|
||||
PDIDATA_LINE_PORT |= PDIDATA_LINE_MASK;
|
||||
else
|
||||
PDIDATA_LINE_PORT &= ~PDIDATA_LINE_MASK;
|
||||
|
||||
Byte >>= 1;
|
||||
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
}
|
||||
|
||||
PDIDATA_LINE_PORT |= PDIDATA_LINE_MASK;
|
||||
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
}
|
||||
|
||||
uint8_t PDITarget_ReceiveByte(void)
|
||||
{
|
||||
uint8_t ReceivedByte = 0;
|
||||
|
||||
PDIDATA_LINE_DDR &= ~PDIDATA_LINE_MASK;
|
||||
|
||||
bool FoundStartBit;
|
||||
|
||||
do
|
||||
{
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
FoundStartBit = !(PDIDATA_LINE_PIN & PDIDATA_LINE_MASK);
|
||||
} while (!FoundStartBit);
|
||||
|
||||
for (uint8_t i = 0; i < 8; i++)
|
||||
{
|
||||
if (PDIDATA_LINE_PIN & PDIDATA_LINE_MASK)
|
||||
ReceivedByte |= 0x01;
|
||||
|
||||
ReceivedByte <<= 1;
|
||||
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
}
|
||||
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;
|
||||
|
||||
PDIDATA_LINE_DDR |= PDIDATA_LINE_MASK;
|
||||
|
||||
return ReceivedByte;
|
||||
}
|
||||
|
||||
#endif
|
@ -0,0 +1,74 @@
|
||||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2009.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
Permission to use, copy, modify, and distribute this software
|
||||
and its documentation for any purpose and without fee is hereby
|
||||
granted, provided that the above copyright notice appear in all
|
||||
copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Header file for PDITarget.c.
|
||||
*/
|
||||
|
||||
#ifndef _PDI_TARGET_
|
||||
#define _PDI_TARGET_
|
||||
|
||||
/* Includes: */
|
||||
#include <avr/io.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
/* Defines: */
|
||||
#define PDIDATA_LINE_PORT PORTB
|
||||
#define PDIDATA_LINE_DDR DDRB
|
||||
#define PDIDATA_LINE_PIN PINB
|
||||
#define PDIDATA_LINE_MASK (1 << 2)
|
||||
|
||||
#define PDICLOCK_LINE_PORT RESET_LINE_PORT
|
||||
#define PDICLOCK_LINE_DDR RESET_LINE_DDR
|
||||
#define PDICLOCK_LINE_MASK RESET_LINE_MASK
|
||||
|
||||
#define PDI_CMD_LDS 0x00
|
||||
#define PDI_CMD_LD 0x20
|
||||
#define PDI_CMD_STS 0x40
|
||||
#define PDI_CMD_ST 0x60
|
||||
#define PDI_CMD_LDCS 0x80
|
||||
#define PDI_CMD_REPEAT 0xA0
|
||||
#define PDI_CMD_STCS 0xC0
|
||||
#define PDI_CMD_KEY 0xE0
|
||||
|
||||
#define PD_STATUS_REG 0
|
||||
#define PD_RESET_REG 1
|
||||
#define PD_CTRL_REG 2
|
||||
|
||||
#define PDI_STATUS_NVM (1 << 1)
|
||||
#define PDI_RESET_KEY 0x59
|
||||
|
||||
|
||||
/* Function Prototypes: */
|
||||
void PDITarget_SendByte(uint8_t Byte);
|
||||
uint8_t PDITarget_ReceiveByte(void);
|
||||
|
||||
#endif
|
Loading…
Reference in new issue