I've been building a custom cape for a robotics project and one of the chips I'm using is controlled via SPI. I've used an oscilloscope to validate that the SPI is working as expected. However, two days ago I noticed that the chip stopped responding and after scoping the SPI signal I can see that the BBB is sending the SPI data pulses at 1.8v. The SPI signal is still happening... and the clock signal is still at 3.3v. It's just the SPI data line that is only peaking at 1.8v.
So, I'm wondering if I've done something bad to my BBB or if I've somehow triggered a feature that I don't know about yet. I'm attaching a photo of the oscilloscope screen that shows the issue. -- 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. For more options, visit https://groups.google.com/d/optout.
