Raspbery pi have the following PWM support:
Pin 12 – PWM-0,channel-0
Pin 32 – PWM-0,channel-1
Pin 33 – PWM-1,channel-0
Pin 35 – PWM-1,channel-1
if Jetson Nano indeed is using the same layout, you should able to enable those as well. so, two PWM pin with two channel each.
but, I did further research by checking the actually device by
if you cd to
cat npwm you will get 4, which means
pwmchip0 have 4 channel, and then if you do the same for
pwmchip4 you will get 1, which means
pwmchip4 only have 1 channel. So, that is different than Raspberry Pi layout. So, there are total 5 channels (vs. 4 channel from Pi)
Theoretically, if you know which pin is each channel is corresponding to, you can use it without problem. Hope there are some official answer here.
Jetson Nano Pin layout
Pi Pin layout