axi stream stuck busy

[icebergyy]

Hi everyone

I know there are a lot of posts about this problem, but mine is a little bit different.

The first transaction finished properly. (It is not busy forever)

Then the second transaction stuck there forever.

Interface summary

Above are HLS interface summary and axi stream data port struct.

float input_real[100][1024];

....

	 int correctnum = 0;
	 for(int i =0; i<100; i++){
		printf("%d\n",(int)XAxiDma_SimpleTransfer(&axiDma,(u32)input_real[i],32*32*sizeof(float),XAXIDMA_DMA_TO_DEVICE));
		printf("%d\n",(int)XAxiDma_SimpleTransfer(&axiDma,(u32)m_dma_buffer_RX,10*sizeof(float),XAXIDMA_DEVICE_TO_DMA));;
		 while(XAxiDma_Busy(&axiDma,XAXIDMA_DMA_TO_DEVICE)); // stuck at the second transcation where i = 1, the first one is finished properly
		 while(XAxiDma_Busy(&axiDma,XAXIDMA_DEVICE_TO_DMA));
		 Xil_DCacheInvalidateRange((u32)m_dma_buffer_RX,10*sizeof(float));
		 float output = find_max(m_dma_buffer_RX);
		 printf("%f\n",output);
		 if(output == label[i]){
			 correctnum++;
		 }
	 }

[icebergyy · Accepted solution]

Ok it's dumb. there is a peripheral function called enable auto restart.