Luckfox Forums

Posted: **2025-06-01 14:58**

In rk3506g2 datasheet says that pwm has a capture mode.
Is this function implemented in drivers?
Thunks

Posted: **2025-06-04 3:11**

Hello, the capture mode of PWM is enabled by default. After inputting the PWM signal to the pin, you can view it by using the command.

# X should be adjusted according to the actual situation 
echo 0 > /sys/class/pwm/pwmchipX/export 
cat /sys/class/pwm/pwmchipX/pwm0/capture

Note: Once the "enable" setting is set to 1, the system will enter the output mode and will no longer be able to capture.

echo 1 >  /sys/class/pwm/pwmchipX/pwm0/enable

Posted: **2025-06-04 18:29**

Thanks!!!

PWM capture mode