On Friday, July 3, 2015 at 4:27:04 PM UTC-3, Emile Cormier wrote: > > And everything seems to work fine (note that I'm currently not able to > test reading from SPI). >
It turns out that reading from D0 doesn't work unless RXACTIVE=1 for the SCLK signal. This comment <http://hipstercircuits.com/enable-spi-1-0-and-1-1-with-device-tre-overlays-on-beaglebone/#comment-7101> from hipstercircuits confirms this. That answers my question #1. In now have this in my dts file, and both reading and writing seem to work ok: pinctrl-single,pins = < 0x190 0x2b /* mcasp0_aclkx.spi1_sclk, RXACTIVE | Pull-down disabled | MODE3 */ 0x194 0x33 /* mcasp0_fsx.spi1_d0, INPUT_PULLUP | MODE3 */ 0x198 0x1b /* mcasp0_axr0.spi1_d1, Pull-up disabled | MODE3 */ 0x19c 0x1b /* mcasp0_ahclkr.spi1_cs0, Pull-up disabled | MODE3 */ -- 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/d/optout.
