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Stub out more of the TPI programming protocol routines in the AVRISP project.

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This commit is contained in:
Dean Camera 2009-12-23 13:28:44 +00:00
parent be71f934a4
commit bd5e8f07b7
11 changed files with 174 additions and 31 deletions
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20
Projects/AVRISP/Lib/TPITarget.c
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@ -312,8 +312,26 @@ void TPITarget_SendBreak(void)
*/
bool TPITarget_WaitWhileNVMBusBusy(void)
{
// TODO
TCNT0 = 0;
TIFR0 = (1 << OCF1A);
uint8_t TimeoutMS = TPI_NVM_TIMEOUT_MS;
/* Poll the STATUS register to check to see if NVM access has been enabled */
while (TimeoutMS)
{
/* Send the LDCS command to read the TPI STATUS register to see the NVM bus is active */
TPITarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);
if (TPITarget_ReceiveByte() & TPI_STATUS_NVM)
return true;
if (TIFR0 & (1 << OCF1A))
{
TIFR0 = (1 << OCF1A);
TimeoutMS--;
}
}
return false;
}