Dennis: Be careful. Many/most SPI slave devices use the rising edge of the CS line, following the write activity, to load the data and make it active. So, you load it serially, but it is not transferred into the active control or output registers, until CS goes high, making it all take effect simultaneously. CS is typically required, even with a single SPI slave on a bus, depending on how the specific SPI slave works. --- Graham
On Monday, June 17, 2019 at 2:27:26 PM UTC-5, Dennis Lee Bieber wrote: > > > > A circuit with a single target could, in theory, have the CS line tied > permanently using a pull-up/pull-down resistor (since you state a falling > edge, I'd guess pull-down to ground would be the permanent mode). > > > > -- 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/638422de-f63b-411c-a930-28cf743428f9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
