Hello all,
I am currently getting familiar with the EDMA3 module and tried to write a simple code to transfer an array from L2 SRAM to DDR memory. I am using the little endian C6670 functional simulator with CCS 5.2 and EDMA3 LLD 02_11_05_02. The code compiles without errors and I also dont get any errors using the EDMA3 LLD API functions. However, if I take a look at the destination address, I cant see the transferred array elements. I would appreciate any help with this issue and thanks in advance. Here is the code:
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Void main() {
char testStr_start[ 4 ] = "1234";
EDMA3_DRV_Result edma3_result;
EDMA3_DRV_InstanceInitConfig *sampleInstInitCfgPtr = &sampleInstInitConfig;
EDMA3_DRV_GblConfigParams *edma3_gblCfgParamsPtr = &sampleEdma3GblCfgParams;
EDMA3_DRV_InitConfig initCfg;
EDMA3_DRV_Handle hEDMA = NULL;
Uint32 edma3_instId = 1;
EDMA3_DRV_MiscParam miscParam;
miscParam.isSlave = FALSE;
miscParam.param = NULL;
initCfg.regionId = 1;
initCfg.isMaster = TRUE;
initCfg.drvSemHandle = NULL;
initCfg.drvInstInitConfig = sampleInstInitCfgPtr;
initCfg.gblerrCb = NULL;
initCfg.gblerrData = NULL;
Semaphore_Params edma3_semParams;
Semaphore_Params_init( &edma3_semParams );
uint32_t chan = EDMA3_DRV_DMA_CHANNEL_ANY;
uint32_t tcc = EDMA3_DRV_TCC_ANY;
EDMA3_RM_EventQueue edma3_rm_eventQueue = 0;
uint32_t srcAddr = ( uint32_t ) &testStr_start[0];
uint32_t destAddr = 0x80000000;
int16_t srcBIdx = 0;
int16_t srcCIdx = 0;
int16_t destBIdx = 0;
int16_t destCIdx = 0;
uint16_t aCnt = 4;
uint16_t bCnt = 1;
uint16_t cCnt = 1;
uint16_t bCntReload = 0;
edma3_result = EDMA3_DRV_create( edma3_instId, edma3_gblCfgParamsPtr, ( void* ) &miscParam );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 Instance %i was successfully created\n", edma3_instId );
edma3_result = edma3OsSemCreate( 1, &edma3_semParams, &initCfg.drvSemHandle );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 Semaphore was successfully created\n" );
hEDMA = EDMA3_DRV_open( edma3_instId, ( void* ) &initCfg, &edma3_result );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 Instance %i was successfully opened\n", edma3_instId );
edma3_result = EDMA3_DRV_requestChannel( hEDMA, &chan, &tcc, edma3_rm_eventQueue, 0, NULL );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 channel request for channel %i was successfull\n", chan );
edma3_result = EDMA3_DRV_setSrcParams( hEDMA, chan, srcAddr, EDMA3_DRV_ADDR_MODE_INCR, EDMA3_DRV_W256BIT );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 source parameters were set successfully\n" );
edma3_result = EDMA3_DRV_setSrcIndex( hEDMA, chan, srcBIdx, srcCIdx );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 source indices were set successfully\n" );
edma3_result = EDMA3_DRV_setDestParams( hEDMA, chan, destAddr, EDMA3_DRV_ADDR_MODE_INCR, EDMA3_DRV_W256BIT );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 destination parameters were set successfully\n" );
edma3_result = EDMA3_DRV_setDestIndex( hEDMA, chan, destBIdx, destCIdx );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 destination indices were set successfully\n" );
edma3_result = EDMA3_DRV_setOptField( hEDMA, chan, EDMA3_DRV_OPT_FIELD_STATIC, EDMA3_DRV_STATIC_EN );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 linking disabled successfully\n" );
edma3_result = EDMA3_DRV_setTransferParams( hEDMA, chan, aCnt, bCnt, cCnt, bCntReload, EDMA3_DRV_SYNC_AB );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 Transfer parameters were set successfully\n" );
edma3_result = EDMA3_DRV_setOptField( hEDMA, chan, EDMA3_DRV_OPT_FIELD_TCINTEN, EDMA3_DRV_TCINTEN_EN);
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 completion interrupt enabled successfully\n" );
edma3_result = EDMA3_DRV_enableTransfer( hEDMA, chan, EDMA3_DRV_TRIG_MODE_MANUAL );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 transfer enabled successfully\n" );
edma3_result = EDMA3_DRV_waitAndClearTcc( hEDMA, tcc );
if ( edma3_result == EDMA3_DRV_SOK )
System_printf( "EDMA3 transfer completed successfully\n" );
}
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Best Regards
Burak
