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More fixes to the AVRISP command timeout system so that it should no longer lock up while processing command no matter what the conditions.

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This commit is contained in:
Dean Camera 2010-02-21 06:26:33 +00:00
parent 12a01ed72d
commit e322f14620
8 changed files with 58 additions and 31 deletions
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12
Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
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@ -72,13 +72,15 @@ static void XMEGANVM_SendNVMRegAddress(const uint8_t Register)
bool XMEGANVM_WaitWhileNVMBusBusy(void)
{
/* Poll the STATUS register to check to see if NVM access has been enabled */
uint8_t TimeoutMSRemaining = 100;
while (TimeoutMSRemaining)
{
/* Send the LDCS command to read the PDI STATUS register to see the NVM bus is active */
XPROGTarget_SendByte(PDI_CMD_LDCS | PDI_STATUS_REG);
if (XPROGTarget_ReceiveByte() & PDI_STATUS_NVM)
return true;
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
@ -99,7 +101,6 @@ bool XMEGANVM_WaitWhileNVMBusBusy(void)
bool XMEGANVM_WaitWhileNVMControllerBusy(void)
{
/* Poll the NVM STATUS register while the NVM controller is busy */
uint8_t TimeoutMSRemaining = 100;
while (TimeoutMSRemaining)
{
/* Send a LDS command to read the NVM STATUS register to check the BUSY flag */
@ -108,7 +109,10 @@ bool XMEGANVM_WaitWhileNVMControllerBusy(void)
/* Check to see if the BUSY flag is still set */
if (!(XPROGTarget_ReceiveByte() & (1 << 7)))
return true;
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))