Topic: Simple GPIO on the Infocast 8
After perusing the blog post at http://www.bunniestudios.com/blog/?p=1140 and a few other places, I've been able to turn on GP49 GP54 and GP55 (via regutil -w GPIO2_PSR=0x00c20000). However, I don't know how to access them individually.
However, I would like to be able to control these three individually. I know next to nothing about GPIO, and just want to drive some LEDs... what parameters would I need to pass to regutil to turn on/off only one GPIO at a time? Also, are there any other pins available that could function as GPIO (e.g. on the JTAG or serial connectors), and how would I access them?
Finally, is there any way for me to adjust the output on the GPIO pins, or is it strictly digital?