ADSP-21569 SPORT Core transfer

Hi,

I made a few tries. Below I am attaching my code.
It is about sending 0xaaaa value continuously for testing purposes.
The CLK and FS lines work for me.
Unfortunately, on D0 (line DAI0_PB_05) I still have high impedance.
What could be the reason why the data is not pushed to SPORT1_AD0 line at all?

#define SPORT_DEVICE_1A 1u
/* SPORT Handle */
ADI_SPORT_HANDLE hSPORTDev1ATx;//TX

void SPORT_Test_CoreTransfer(void)
{

*pREG_PADS0_DAI0_IE = BITM_PADS_DAI0_IE_VALUE;
*pREG_PADS0_DAI1_IE = BITM_PADS_DAI1_IE_VALUE;

SRU(SPT1_ACLK_PBEN_O, DAI0_PBEN04_I);
SRU(SPT1_ACLK_O, DAI0_PB04_I);
//
SRU(SPT1_AD0_PBEN_O, DAI0_PBEN05_I);
SRU(SPT1_AD0_O, DAI0_PB05_I);

SRU(SPT1_AFS_PBEN_O, DAI0_PBEN01_I);
SRU(SPT1_AFS_O, DAI0_PB01_I);

adi_sport_Open(SPORT_DEVICE_1A,ADI_HALF_SPORT_A,ADI_SPORT_DIR_TX, ADI_SPORT_SERIAL_MODE, SPORTMemory1A,ADI_SPORT_MEMORY_SIZE,&hSPORTDev1ATx);
adi_sport_ConfigData(hSPORTDev1ATx,ADI_SPORT_DTYPE_ZERO_FILL,31,false,false,false);
adi_sport_ConfigClock(hSPORTDev1ATx,64,true,false,true);
adi_sport_ConfigFrameSync(hSPORTDev1ATx,33,true,true,false,true,true,false);

adi_sport_RegisterCallback(hSPORTDev1ATx,SPORTFramCallbackTx, NULL);

while(1)
{
uint32_t opcode1 = 0xaaaa;
adi_sport_CoreTransfer(hSPORTDev1ATx, &opcode1, 4, ADI_SPORT_CHANNEL_PRIM);
for(int i = 0; i < 100000; i++)
{
}
tfp_printf("Test_SPORT_CoreTransfer\r\n");
}
}

Hi

This query is handled through private support. To avoid duplication of efforts, you can continue the discussions through private support and we will post the final resolution here.

Regards,
Anand Selvaraj