Toggling GPIOs via DMA in Python – Unable to Access Registers

[KevinFFF]

Hi rakesh2011,

Are you using the devkit or custom board for Jetson Nano?
What’s the Jetpack version in use?

@rakesh2011

for GPIO pins 2, 3, 7, and 13.

Do you mean these pins from 40-pins header?

You can refer to Calculating/Getting register adresses of gpio pins - #10 by KevinFFF to calculate the register address for GPIO pins.
Although they are the example from AGX Orin, you can just search the similar keywords in the TRM document of Jetson Nano.