Wiringx does not set pinmux

Duo
1

This is annoying. Maybe I’m doing it wrong.

I used pins 16 & 17 for my bitbang i2c program, because I was having trouble with 14 & 15 for some reason (probably the same reason). To run my program I had to cvi_pinmux the pins to XGPIO. Ok fine, that worked. But, to my extreme annoyance, when I restarted the Duo and ran my program again it didn’t work. Had to cvi_pinmux those pins again.

I understand it switching to default pinmux on those pins on restart, but shouldn’t wiringx set that for me when I set a pin as a GPIO output? If it doesn’t then that’s fine, but it should have a function (method? command?) so I can set pinmux inside my program.

I guess I’ll find the processor datasheet and dig through it to find out what register(s) to change to set it in my program.

2

Huh. I forget sometimes that I’m running Linux on this little board. I guess I could write a quick shell script to do the pinmuxes and launch the program.

… a few minutes later …

That works just fine. I still think wiringx should take care of that, but whatever. This works. It’s not difficult.

3

Thank you for your feedback.
There is no automatic pinmux configuration in wiringX, and this is indeed a problem. We are working on finding a solution for this issue. Please stay tuned.

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