ahoneybun/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added memory erase handling to the PDI protocol in the AVRISP project.

Browse source
This commit is contained in:
Dean Camera 2009-12-14 05:15:42 +00:00
parent 8a55d80e7e
commit 48e50b6b57
3 changed files with 49 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

27
Projects/AVRISP/Lib/NVMTarget.c
View file

@ -137,4 +137,31 @@ void NVMTarget_ReadMemory(uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t Re
}
}
void NVMTarget_EraseMemory(uint8_t EraseCommand, uint32_t Address)
{
NVMTarget_WaitWhileNVMControllerBusy();
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_CMD);
PDITarget_SendByte(EraseCommand);
if (EraseCommand == NVM_CMD_CHIPERASE)
{
/* Set CMDEX bit in NVM CTRLA register to start the chip erase */
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_CTRLA);
PDITarget_SendByte(1 << 0);
}
else
{
/* Other erase modes just need us to address a byte within the target memory space */
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendAddress(Address);
PDITarget_SendByte(0x00);
}
NVMTarget_WaitWhileNVMBusBusy();
NVMTarget_WaitWhileNVMControllerBusy();
}
#endif