I'm having some weirdness that I don't quite understand. I'm trying to just toggle a GPIO pin (GPIO30) on and off using C and just the file subsystem. Everything seems to work if there is a delay between the fseek and the fwrite. See this pastebin for the relevant code http://pastebin.com/Ftvv0nvE. As it is, it works. If you uncomment the code, instead of creating a square wave on the oscilloscope, it just creates pulse spikes (i.e. short on times). Can someone explain what is happening? I'm working off a stock BeagleBone Black, no updates (I wanted to make sure the code worked on all versions, as people would be getting their BBB and trying it directly).
Paul Tan. http://exadler.blogspot.com http://exadler.com -- 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.
