GPIO18 is PCM_CLK --> required for I2S and can't be reconfigured to another GPIO (on a standard Pi with GPIO40).
Most likely you want to use GPIO18 for PWM --> use a simple GPIO with on/off control if you don't have a free HW PWM on your Pi Zero 2 when using I2S.
You can try using the SW GPIO-PWM https://github.com/raspberrypi/linux/bl ... verlay.dts
Never used that though, so no idea what it takes to get it working (most likely don't define a backlight in your display overlay and just use the new one for that).
Most likely you want to use GPIO18 for PWM --> use a simple GPIO with on/off control if you don't have a free HW PWM on your Pi Zero 2 when using I2S.
You can try using the SW GPIO-PWM https://github.com/raspberrypi/linux/bl ... verlay.dts
Never used that though, so no idea what it takes to get it working (most likely don't define a backlight in your display overlay and just use the new one for that).
Statistics: Posted by aBUGSworstnightmare — Mon Nov 25, 2024 4:01 pm