I have recompiled Grinch 21.3.4 with modified tegra124-jetson_tk1-gpio-pm375-0000-c00-00.dtsi and tegra124-jetson_tk1-pinmux-pm375-0000-c00-00.dtsi as it is discribed here - http://elinux.org/Jetson/PWM. I’m trying to get something out of PWM0 under root:
echo 0 > /sys/class/pwm/pwmchip0/export echo 10000000 > /sys/class/pwm/pwmchip0/pwm0/period echo 5000000 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle echo 1 > /sys/class/pwm/pwmchip0/pwm0/enable
but I get nothing out of gpio163 (pin 49 on J3A2). What I’m doing wrong?