Pixhawk hardware - dev/pwm_output0 problem. Please HELP!

I am relatively new in using the pixhawk 1 hardware. I am trying to test the motors on my drone but my newer piwhawk 1 doesn’t seem to be producing any signals so I hooked it up to an oscilloscope and confirmed that it wasn’t producing any signal. So I accessed the hardware using Nuttx and tried running the following command line:

“pwm test -c 1 -p 1200”.

The following error occurs:

“ERROR [pwm] can’t open /dev/pwm_output0”

When I access the dev/ directory, there isn’t a “pwm_output0” file. When I checked my older pixhawk’s dev/ directory, they have the “pwm_output” file. I’m not sure if this is a Firmware issue or a hardware issue. Any help or insight would be greatly appreciated. Thanks!