Commit 48e50b6b authored by Dean Camera's avatar Dean Camera
Browse files

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

parent 8a55d80e
......@@ -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
......@@ -117,5 +117,6 @@
void NVMTarget_WaitWhileNVMControllerBusy(void);
uint32_t NVMTarget_GetMemoryCRC(uint8_t MemoryCommand);
void NVMTarget_ReadMemory(uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize);
void NVMTarget_EraseMemory(uint8_t EraseCommand, uint32_t Address);
#endif
......@@ -154,11 +154,31 @@ static void PDIProtocol_Erase(void)
} Erase_XPROG_Params;
Endpoint_Read_Stream_LE(&Erase_XPROG_Params, sizeof(Erase_XPROG_Params));
Erase_XPROG_Params.Address = SwapEndian_32(Erase_XPROG_Params.Address);
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
// TODO: Send erase command here via PDI protocol
uint8_t EraseCommand;
if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_CHIP)
EraseCommand = NVM_CMD_CHIPERASE;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_APP)
EraseCommand = NVM_CMD_ERASEAPPSEC;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_BOOT)
EraseCommand = NVM_CMD_ERASEBOOTSEC;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_EEPROM)
EraseCommand = NVM_CMD_ERASEEEPROM;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_APP_PAGE)
EraseCommand = NVM_CMD_ERASEAPPSECPAGE;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_BOOT_PAGE)
EraseCommand = NVM_CMD_ERASEBOOTSECPAGE;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_EEPROM_PAGE)
EraseCommand = NVM_CMD_ERASEEEPROMPAGE;
else if (Erase_XPROG_Params.MemoryType == XPRG_ERASE_USERSIG)
EraseCommand = NVM_CMD_ERASEUSERSIG;
NVMTarget_EraseMemory(EraseCommand, Erase_XPROG_Params.Address);
Endpoint_Write_Byte(CMD_XPROG);
Endpoint_Write_Byte(XPRG_CMD_ERASE);
......
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