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Added .5MHz recovery clock to the AVRISP programmer project when in ISP programming mode to correct mis-set fuses.

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Fixed AVRISP project not extending the command delay after each successful page/word/byte program.
This commit is contained in:
Dean Camera 2010-02-10 04:02:10 +00:00
parent 35a0fe9384
commit ab195ab1da
6 changed files with 45 additions and 14 deletions
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13
Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c
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@ -62,7 +62,14 @@ void ISPProtocol_EnterISPMode(void)
uint8_t ResponseStatus = STATUS_CMD_FAILED;
CurrentAddress = 0;
/* Set up the synchronous USART to generate the recovery clock on XCK pin */
UBRR1 = (F_CPU / 500000UL);
UCSR1B = (1 << TXEN1);
UCSR1C = (1 << UMSEL10) | (1 << UPM11) | (1 << USBS1) | (1 << UCSZ11) | (1 << UCSZ10) | (1 << UCPOL1);
DDRD |= (1 << 5);
/* Perform execution delay, initialize SPI bus */
ISPProtocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS);
SPI_Init(ISPTarget_GetSPIPrescalerMask() | SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING | SPI_MODE_MASTER);
@ -118,6 +125,12 @@ void ISPProtocol_LeaveISPMode(void)
SPI_ShutDown();
ISPProtocol_DelayMS(Leave_ISP_Params.PostDelayMS);
/* Turn off the synchronous USART to terminate the recovery clock on XCK pin */
UBRR1 = (F_CPU / 500000UL);
UCSR1B = (1 << TXEN1);
UCSR1C = (1 << UMSEL10) | (1 << UPM11) | (1 << USBS1) | (1 << UCSZ11) | (1 << UCSZ10) | (1 << UCPOL1);
DDRD &= ~(1 << 5);
Endpoint_Write_Byte(CMD_LEAVE_PROGMODE_ISP);
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_ClearIN();