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Fixed programming errors in the AVRISP-MKII project when the programming packet is a round multiple of the endpoint bank size under avrdude (thanks to Steffan Woltjer).

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This commit is contained in:
Dean Camera 2011-02-04 18:17:31 +00:00
parent 73718d7c57
commit 279e1b6ece
4 changed files with 23 additions and 2 deletions
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9
Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
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@ -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);
// 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);