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How to run SPI EDMA case for c6657 device without ISR mode by enabling TCChen only.

Harikrishna Vuppaladhadiam
Expert 1855 points

/** Used for creating the options entry in the parameter ram */
#define CSL_EDMA3_OPT_MAKE(itcchEn, tcchEn, itcintEn, tcintEn, tcc, tccMode, \
fwid, stat, syncDim, dam, sam) \

void Setup_Edma_Params (Uint32 srcBuf,Uint32 dstBuf)
{
// Parameter Handle Open
// Open all the handles and keep them ready
paramHandle0 = CSL_edma3GetParamHandle(hChannel0,CSL_EDMA3_CHA_30,&EdmaStat);
paramHandle1 = CSL_edma3GetParamHandle(hChannel1,CSL_EDMA3_CHA_31,&EdmaStat);

paramSetup.aCntbCnt = CSL_EDMA3_CNT_MAKE(TEST_ACNT,(TEST_BCNT));
paramSetup.srcDstBidx = CSL_EDMA3_BIDX_MAKE(TEST_ACNT,0 );
paramSetup.srcDstCidx = CSL_EDMA3_CIDX_MAKE(0,0);
paramSetup.cCnt = TEST_CCNT;
paramSetup.option = CSL_EDMA3_OPT_MAKE(FALSE,TRUE,FALSE,FALSE,CSL_EDMA3_CHA_30,CSL_EDMA3_TCC_NORMAL, \
CSL_EDMA3_FIFOWIDTH_NONE,FALSE,CSL_EDMA3_SYNC_A,CSL_EDMA3_ADDRMODE_INCR,CSL_EDMA3_ADDRMODE_INCR);

I am polling on 

CSL_edma3GetHwChannelStatus(hChannel0, CSL_EDMA3_QUERY_CHANNEL_STATUS, &status)

But status never returns TRUE. This event looks never arrived. 

How do we use only polling method for Channel Event EDMA complete status using Channel Event Register? 

Hari

  • 0
    TI__Guru* 84110 points

    Hari,

    Your OPT_MAKE values would be much easier to follow if you put one parameter on a line and include a comment for which parameter it is. I thought most of our examples do that, so I apologize if you started from an example that did not. If you did not start from an example, that would be a good place to start.

    I do not believe you are doing this correctly, but I am not sure I follow what you are trying to do. That is one reason it would be good to start from a working example and get that example to work.

    The terms you use need to be the same as the terms we use in the EDMA3 User Guide. I do not know what a Channel Event Register is, for example.

    Sorry for not being much help, yet.

    Regards,
    RandyP