The above configuration for the I2S4/DAP4 pins shows the output-enable is disabled for all of these pins (bit 4 is set). These pins default to being GPIO as well (although we cannot confirm from the above register dump). The recommended approach is to rebuild the bootloader as described in this thread …
I just wanted to let you know that we have release JetPack 4.3 (L4T 32.3.1) and we now have a tool included to assist with the reconfiguration of the pins exposed by the 40-pin header so that you no longer need to rebuild and reflash. Please see the following:
Just to let you know that we have identified an issue with the Jetson.IO tool on Nano when updating Nano using SD card image. However, there is a simple fix availabe. Details are here: