請問如何透過LVDS 介面傳輸我們自訂的Data 在AWR1843上

您好,

請問是否有一些範例可以參考呢?

請問是將我們要的傳輸的data放在sessionCfg.u.swCfg.userBufferInfo[1].address 中即可嗎?

int32_t MmwDemo_LVDSStreamSwConfig (MmwDemo_DSS_DataPathObj *datPathObj)
{
CBUFF_SessionCfg sessionCfg;
MmwDemo_LVDSStream_MCB_t* streamMcb = &gSrrDSSMCB.lvdsStream;
int32_t errCode;
int32_t retVal = MINUS_ONE;

memset ((void*)&sessionCfg, 0, sizeof(CBUFF_SessionCfg));

/* Populate the configuration: */
sessionCfg.executionMode = CBUFF_SessionExecuteMode_SW;
sessionCfg.edmaHandle = datPathObj->edmaHandle[MMW_LVDS_STREAM_EDMA_INSTANCE];
sessionCfg.allocateEDMAChannelFxn = MmwDemo_LVDSStream_EDMAAllocateCBUFFSwChannel;
sessionCfg.freeEDMAChannelFxn = MmwDemo_LVDSStream_EDMAFreeCBUFFSwChannel;
sessionCfg.frameDoneCallbackFxn = MmwDemo_LVDSStream_SwTriggerFrameDone;
sessionCfg.dataType = CBUFF_DataType_COMPLEX;
sessionCfg.u.swCfg.userBufferInfo[0].size = HSIHeader_toCBUFFUnits(sizeof(MmwDemo_LVDSUserDataHeader_t));
sessionCfg.u.swCfg.userBufferInfo[0].address = (uint32_t)&(streamMcb->userDataHeader);
if(datPathObj->numDetObj != 0)
{
sessionCfg.u.swCfg.userBufferInfo[1].size = HSIHeader_toCBUFFUnits((datPathObj->numDetObj) * sizeof(MmwDemo_detectedObj));
sessionCfg.u.swCfg.userBufferInfo[1].address = (uint32_t)datPathObj->detObj2D;
}
else
{
sessionCfg.u.swCfg.userBufferInfo[1].size = 0;
sessionCfg.u.swCfg.userBufferInfo[1].address = 0;
}

/* Do we need to enable the header? */
if(datPathObj->cliCfg->lvdsStreamCfg.isHeaderEnabled)
{
/* Create the HSI Header to be used for the HW Session: */
if (HSIHeader_createHeader (&sessionCfg, true, &(streamMcb->swSessionHSIHeader), &errCode) < 0)
{
/* Error: Unable to create the HSI Header; report the error */
System_printf("Error: MmwDemo_LVDSStream_config unable to create HW HSI header with [Error=%d]\n", errCode);
goto exit;
}

/* Setup the header in the CBUFF session configuration: */
sessionCfg.header.size = HSIHeader_getHeaderSize(&streamMcb->swSessionHSIHeader);
sessionCfg.header.address = (uint32_t)&(streamMcb->swSessionHSIHeader);
}

/* Create the SW Session. */
streamMcb->swSessionHandle = CBUFF_createSession (gSrrDSSMCB.lvdsStream.cbuffHandle, &sessionCfg, &errCode);

if (streamMcb->swSessionHandle == NULL)
{
/* Error: Unable to create the CBUFF SW session */
System_printf("Error: MmwDemo_LVDSStream_config unable to create the CBUFF SW session with [Error=%d]\n", errCode);
goto exit;
}

/* Control comes here implies that the LVDS Stream has been configured successfully */
retVal = 0;

exit:
return retVal;
}