Hi I have been trying to set any of the GPIO pins and read the voltage with a voltage meter with no success (on CanMV K230 mini ). below is my gpio info and methods.
im running linux on little core with libgpiod library and tools
[root@canaan ~ ]#gpioinfo
gpiochip0 - 1 lines:
line 0: unnamed unused output active-high
gpiochip1 - 1 lines:
line 0: unnamed unused input active-high
gpiochip2 - 1 lines:
line 0: unnamed “gpio-key-27” input active-high [used]
gpiochip3 - 1 lines:
line 0: unnamed “gpio-key-33” input active-high [used]
gpiochip4 - 1 lines:
line 0: unnamed unused input active-high
Set GPIO high
gpioset gpiochip0 0=1
monitor output
gpiomon -r -n 5 gpiochip1 0
none of these commands set any pins or monitor and i dont know why.
I also noticed that none of the pins align with the documentation: i cannot find gpio pins 42-43 46-47 in the gpioinfo.
please help me with this issue thanks