Hi Ralf, Thank you again friend. I'm referring to P9.15 (=GPIO1_16), which is Pin 48, which I showed its MUX Mode: pin 48 (44e108c0) 00000008 pinctrl-single
According to the P9_Table, Mode 0 of that Pin9.15 is *gmpc_a0* *"how do you test the port function?"* Well, I simply wrote the a code which writes to GPIO1 Registers directly (i.e. not using the Virtual File System), and manage to control its output level and toggle a LED. On Saturday, February 15, 2014 8:38:59 PM UTC+2, Ralf Roesch wrote: > > Matt, > > yes it should be mode 0, output, no pullup / pulldown. > > You are referring Pin P8.37 / lcd_data8 ? > If so, this a good question which I also have no idea. > > The only assumption I have is that the GPIO-function might be something > like "wired or" with other modes (here lcd controller function pin). > > How do you test the port function? > > regards > Ralf > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
