ZCU111 getting stuck - mmc0: Timeout waiting for hardware cmd interrupt

[PeterOgden]

Are you using JTAG by any chance? We’ve seen this issue arise when using the ILA or SDK debuggers. You can fix it by changing the kernel boot arguments as discussed in this thread.

Problem with Using integrated logic analyzer (ILA) for Debugging with PYNQ

OK, it looks like it’s possible to fix this without recompiling PYNQ. Add a new file “uEnv.txt” to the SD card with the following line: bootargs=root=/dev/mmcblk0p2 rw earlyprintk rootfstype=ext4 rootwait devtmpfs.mount=1 uio_pdrv_genirq.of_id="generic-uio" clk_ignore_unused cpuidle.off=1 This adds cpuidle.off=1 to the rest of the default bootargs found from PYNQ/pynq_bootargs.dtsi at master · Xilinx/PYNQ · GitHub Now the hardware manager seems to work and so does the Jupyter Notebook interfa…