On Feb 7, 2006, at 7:05 AM, Peter Bosscha wrote:
> Ok, after a lot of searching through the Wiki it seems I finally
> got my ttyS3 on AudioStix going by doing:
> modprobe proc_gpio
> echo "AF1 in" > /proc/gpio/GPIO42
> echo "AF2 out" > /proc/gpio/GPIO43
> echo "AF1 out" > /proc/gpio/GPIO48
> echo "AF1 in" > /proc/gpio/GPIO49
> I then run a little test program and that is giving me the right data.
> The problem now is that I lose the Ethernet connection on my netMMC
> as soon as I do the above.
> Looks like there's a conflict of GPIO somewhere, can anyone help ??
Yup -- correct, there is a conflict. You can't use HWUART on
GPIO48-51 if you're using a netstix/netDUO/netCF/CFstix. You can use
the HWUART or BTUART on GPIO42-45 if you have one of the newer
gumstix where those lines are brought to the 60-pin connector. Or
you can use the STUART on GPIO46/47 with no flow control.