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Make sure CRC value is pre-zeroed before reading from the XMEGA target device, to prevent corrupt data from being returned to the host in the AVRISP-MKII Clone project.

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This commit is contained in:
Dean Camera 2012-04-15 19:15:35 +00:00
parent 3703d50580
commit ce3db96d9a
1 changed files with 2 additions and 0 deletions
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Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
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@ -174,6 +174,8 @@ void XMEGANVM_DisablePDI(void)
*/ */
bool XMEGANVM_GetMemoryCRC(const uint8_t CRCCommand, uint32_t* const CRCDest) bool XMEGANVM_GetMemoryCRC(const uint8_t CRCCommand, uint32_t* const CRCDest)
{ {
*CRCDest = 0;
/* Wait until the NVM controller is no longer busy */ /* Wait until the NVM controller is no longer busy */
if (!(XMEGANVM_WaitWhileNVMControllerBusy())) if (!(XMEGANVM_WaitWhileNVMControllerBusy()))
return false; return false;