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Update sigmastar-research.md

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Signor Pellegrino 2025-03-18 12:51:36 +03:00 committed by GitHub
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@ -14,3 +14,14 @@ echo 10000 > /sys/class/pwm/pwmchip0/pwm1/period
echo 25 > /sys/class/pwm/pwmchip0/pwm1/duty_cycle
echo 1 > /sys/class/pwm/pwmchip0/pwm1/enable
```
#### Control PWM IR led on 8232SWC-WE-B device, SSC335DE
```
# set PWM4 on GPIO4
devmem 0x1f203C1C w 0x3000
echo 4 > /sys/class/pwm/pwmchip0/export
echo 40000 > /sys/class/pwm/pwmchip0/pwm4/period
echo 40 > /sys/class/pwm/pwmchip0/pwm4/duty_cycle
echo 1 > /sys/class/pwm/pwmchip0/pwm4/enable
```