Hi all,
Pynq version 3.0.1 board zcu111, vivado 2023.2
I need to retrieve real-time data from PL to PS through DMA. However there’s a huge delay between dma_recv.transfer() function call. I tested this with tlast = 1 (the min) and tlast = 32768 (the max). but tlast = 1 has about 78 us delay and tlast = 32768 has about 200 us delay, which are huge considering I lose all the real-time data in between, by the way I’m using 256 Mhz clock. (FIFO is 64 bit width and 32768 depth).
Thank you for your help in advance