Okay, then I'm just missing something obvious. What is a GPIO-SS? What unit and what register address? I see no mention of "GPIO-SS" anywhere in the AM335x Technical Reference Manual.
Normally, I associate SS with "slave select" which means SPI. I see that you *can* turn around the CS lines on the McSPI subsystem, but you have to switch from Master to Slave Mode. That doesn't seem like what you are suggesting. On Sunday, January 19, 2020 at 12:38:28 AM UTC-8, TJF wrote: > > > It was your idea to use the PRU-IEP module. I recommended to use a pin on > a GPIO-SS. > I went hunting for GPIO-SS--I didn't find anything. I went hunting for OE (output enable) in the PRU docs. I found one on the digio. I also found that TI used the IEP to implement the 1-Wire interface on the PRUCAPE. You were also implementing bidirectionality on a 1-Wire interface. I drew an, incorrect in retrospect, inference that people were using the IEP digio for bidirectional and tri-state functions. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/a9624428-be6c-4558-a0b3-53acff9aee61%40googlegroups.com.
