Add structure padding to the appropriate descriptor structures to maintain correct...

[pub/USBasp.git] / Projects / AVRISP-MKII / Lib / XPROG / XPROGProtocol.c

diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
index 1b105dd..ffc07ad 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
@@ -250,6 +250,15 @@ static void XPROGProtocol_WriteMemory(void)
        WriteMemory_XPROG_Params.Length  = SwapEndian_16(WriteMemory_XPROG_Params.Length);
        Endpoint_Read_Stream_LE(&WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length, NULL);
 
        WriteMemory_XPROG_Params.Length  = SwapEndian_16(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();
+       }
+       

        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);