diff options
Diffstat (limited to 'Projects/AVRISP/Lib/PDITarget.c')
| -rw-r--r-- | Projects/AVRISP/Lib/PDITarget.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/Projects/AVRISP/Lib/PDITarget.c b/Projects/AVRISP/Lib/PDITarget.c index e1b77f046..9f2bea8d4 100644 --- a/Projects/AVRISP/Lib/PDITarget.c +++ b/Projects/AVRISP/Lib/PDITarget.c @@ -44,7 +44,7 @@ volatile bool IsSending; volatile uint16_t SoftUSART_Data;
volatile uint8_t SoftUSART_BitCount;
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)
+ISR(TIMER1_COMPA_vect, ISR_BLOCK)
{
/* Toggle CLOCK pin in a single cycle (see AVR datasheet) */
BITBANG_PDICLOCK_PIN |= BITBANG_PDICLOCK_MASK;
@@ -112,11 +112,10 @@ void PDITarget_EnableTargetPDI(void) asm volatile ("NOP"::);
asm volatile ("NOP"::);
- /* Fire timer compare ISR every 50 cycles to manage the software USART */
- OCR0A = 50;
- TCCR0A = (1 << WGM01);
- TCCR0B = (1 << CS00);
- TIMSK0 = (1 << OCIE0A);
+ /* Fire timer compare ISR every 100 cycles to manage the software USART */
+ OCR1A = 100;
+ TCCR1B = (1 << WGM12) | (1 << CS10);
+ TIMSK1 = (1 << OCIE1A);
PDITarget_SendBreak();
PDITarget_SendBreak();
@@ -275,4 +274,20 @@ void PDITarget_SendBreak(void) #endif
}
+bool PDITarget_WaitWhileNVMBusBusy(void)
+{
+ TCNT0 = 0;
+
+ /* Poll the STATUS register to check to see if NVM access has been enabled */
+ while (TCNT0 < PDI_NVM_TIMEOUT_MS)
+ {
+ /* Send the LDCS command to read the PDI STATUS register to see the NVM bus is active */
+ PDITarget_SendByte(PDI_CMD_LDCS | PDI_STATUS_REG);
+ if (PDITarget_ReceiveByte() & PDI_STATUS_NVM)
+ return true;
+ }
+
+ return false;
+}
+
#endif
|