- sizeof(WriteMemory_XPROG_Params).ProgData), NO_STREAM_CALLBACK);
- WriteMemory_XPROG_Params.Address = SwapEndian_32(WriteMemory_XPROG_Params.Address);
- WriteMemory_XPROG_Params.Length = SwapEndian_16(WriteMemory_XPROG_Params.Length);
- Endpoint_Read_Stream_LE(&WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length, NO_STREAM_CALLBACK);
-
+ sizeof(WriteMemory_XPROG_Params).ProgData), NULL);
+ WriteMemory_XPROG_Params.Address = be32_to_cpu(WriteMemory_XPROG_Params.Address);
+ WriteMemory_XPROG_Params.Length = be16_to_cpu(WriteMemory_XPROG_Params.Length);
+ Endpoint_Read_Stream_LE(&WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length, NULL);
+
+ // The driver will terminate transfers that are a round multiple of the endpoint bank in size with a ZLP, need
+ // to catch this and discard it before continuing on with packet processing to prevent communication issues
+ if (((sizeof(uint8_t) + sizeof(WriteMemory_XPROG_Params) - sizeof(WriteMemory_XPROG_Params.ProgData)) +
+ WriteMemory_XPROG_Params.Length) % AVRISP_DATA_EPSIZE == 0)
+ {
+ Endpoint_ClearOUT();
+ Endpoint_WaitUntilReady();
+ }
+