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Change over AVRISP project to have both hardware USART and software USART modes for the PDI protocol, when enabled. Fix up PDI initialisation routines.

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This commit is contained in:
Dean Camera 2009-12-11 00:03:10 +00:00
parent 7aecda6fda
commit 42cfd15793
5 changed files with 204 additions and 111 deletions
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34
Projects/AVRISP/Lib/PDITarget.h
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@ -38,6 +38,7 @@
/* Includes: */
#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdbool.h>
#include <LUFA/Common/Common.h>
@ -53,25 +54,20 @@
/* Defines: */
#if BOARD == BOARD_XPLAIN
#define PDIDATA_LINE_PORT PORTD
#define PDIDATA_LINE_DDR DDRD
#define PDIDATA_LINE_PIN PIND
#define PDIDATA_LINE_MASK (1 << 2)
#define PDICLOCK_LINE_PORT PORTD
#define PDICLOCK_LINE_DDR DDRD
#define PDICLOCK_LINE_MASK (1 << 5)
#define PDI_VIA_HARDWARE_USART
#else
#define PDIDATA_LINE_PORT PORTB
#define PDIDATA_LINE_DDR DDRB
#define PDIDATA_LINE_PIN PINB
#define PDIDATA_LINE_MASK (1 << 3)
#define BITBANG_PDIDATA_PORT PORTB
#define BITBANG_PDIDATA_DDR DDRB
#define BITBANG_PDIDATA_PIN PINB
#define BITBANG_PDIDATA_MASK (1 << 3)
#define PDICLOCK_LINE_PORT RESET_LINE_PORT
#define PDICLOCK_LINE_DDR RESET_LINE_DDR
#define PDICLOCK_LINE_MASK RESET_LINE_MASK
#define BITBANG_PDICLOCK_PORT RESET_LINE_PORT
#define BITBANG_PDICLOCK_DDR RESET_LINE_DDR
#define BITBANG_PDICLOCK_MASK RESET_LINE_MASK
#endif
#define BITS_IN_FRAME 12
#define PDI_CMD_LDS 0x00
#define PDI_CMD_LD 0x20
#define PDI_CMD_STS 0x40
@ -89,14 +85,12 @@
#define PDI_RESET_KEY 0x59
#define PDI_NVMENABLE_KEY (uint8_t[]){0x12, 0x89, 0xAB, 0x45, 0xCD, 0xD8, 0x88, 0xFF}
#define TOGGLE_PDI_CLOCK MACROS{ PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK; \
asm volatile ("NOP" ::); \
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK; \
asm volatile ("NOP" ::); }MACROE
/* Function Prototypes: */
void PDITarget_EnableTargetPDI(void);
void PDITarget_DisableTargetPDI(void);
void PDITarget_SendByte(uint8_t Byte);
uint8_t PDITarget_ReceiveByte(void);
void PDITarget_SendBreak(void);
#endif