Thank you for answering!!
I have remove the AXI Interrupt block and disable the Scatter Gather. The DMA configuration is as following
And the Block Design
.
The problem now is, I can successfully download the bitstream file
ol = Overlay('/home/xilinx/jupyter_notebooks/JiaMing/DMA_lab1/FIFO/dma_fifo.bit')
, but the whole system is busy and stuck when I create the DMA object by
import pynq.lib.dma
dma_fifo = ol.axi_dma_0
Is there any suggestion? Thank you.