ADC and PWM access on BeagleV Fire

[Prabritb]

Hello, I wanted to access the ADC and the PWM pins for my motor driver application on BeagleV fire. I wanted to know:
1. how to use the PWM pins with varied duty cycle?
2. How to access the ADC data and capture a signal for further processing (Plot, tabulation, etc.) ?
TIA.

[Prabritb]

I am using the cape(both cape_for_uarts and robotics) mentioned here:

Setting up the BeagleV-Fire with the robotics cape

Hi, If someone could provide me with some advice for setting up this board with robotics cape. So far I have used the sudo /usr/share/beagleboard/gateware/changes-gateware.sh robotics-cape-gateware command to change the gateware which I got from the Artifacts · BeagleV-Fire / Gateware · GitLab After rebooting the board does not have any of the user LEDs enabled. /sys/class does not contain any led folder. I can set the LEDs using gpioset 2 x=1 but that does not allow me to program them by cod…

I am using the following process:

ls /sys/class/pwm/

pwmchip0 pwmchip16 pwmchip32

echo 0 | sudo tee /sys/class/pwm/pwmchip0/pwm0/enable

echo 20000000 | sudo tee /sys/class/pwm/pwmchip0/pwm0/period

echo 1500000 | sudo tee /sys/class/pwm/pwmchip0/pwm0/duty_cycle

echo 1 | sudo tee /sys/class/pwm/pwmchip0/pwm0/enable

I don’t know which physical pin it is referring as pwmchip0/pwm0?

My primary problem is I want to change the duty cycle and frequency of PWM and apply it on a specific pin. Any help would be really appreciated.
ADC part, I have been able to figure out myself.
TIA.