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Fix inverted bit-banged USART logic in the AVRISP project for PDI programming. Add a delay to the clock toggling in the AVRISP project to ensure that the programming speed does not exceed 10MHz under any conditions to satisfy the limits in the datasheet for all target voltages. Fix incorrect pin being used as the DATA in in PDI programming mode.

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This commit is contained in:
Dean Camera 2009-12-09 12:01:01 +00:00
parent e4cfd5208f
commit 9c8ed168e5
6 changed files with 10 additions and 9 deletions
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6
Projects/AVRISP/Lib/PDITarget.h
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@ -65,7 +65,7 @@
#define PDIDATA_LINE_PORT PORTB
#define PDIDATA_LINE_DDR DDRB
#define PDIDATA_LINE_PIN PINB
#define PDIDATA_LINE_MASK (1 << 2)
#define PDIDATA_LINE_MASK (1 << 3)
#define PDICLOCK_LINE_PORT RESET_LINE_PORT
#define PDICLOCK_LINE_DDR RESET_LINE_DDR
@ -91,7 +91,9 @@
#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; \
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK; }MACROE
asm volatile ("NOP" ::); \
PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK; \
asm volatile ("NOP" ::); }MACROE
/* Function Prototypes: */
void PDITarget_SendByte(uint8_t Byte);