Most SPI peripheral can control the CS automatically. The TRM will tell you if you can meet your timing diagrams. If it doesn’t you need to use a GPIO control of CLK in software
Sent from Yahoo Mail on Android On Tue, May 24, 2016 at 9:25 AM, Raul Piper<[email protected]> wrote: My Question was Can CS be selectively made High or Low at nth or pth Clock Pulse while using/writing the SPI driver? On Monday, May 23, 2016 at 9:59:14 PM UTC+5:30, john3909 wrote: Here are the possible solutions: 1) Use spidev which allows a user space application to communicate with a device over SPI2) Use PRU to communicate with device over SPI3) Develop a device driver to communicate with device over SPI4) Adapt an IIO driver that is similar to your device Regards,John On May 23, 2016, at 4:34 AM, Raul Piper <[email protected]> wrote: I am developing a driver for a hardware whose datasheet says it has a 4 wire Serial interface .DataIN/OUT,Clock,CS .Does it means I can develop a full fledged SPI driver on Linux to use it.To add more when the CLK has n-n+1(say 3-4) rising edge with LE = 1 certain control register will be written .Value of n depends on the type of control register.Will it be good to develop a SPI driver for this or this can be achieved better by using the GPIOs(setting/resetting the CLK,Data Lines) . experts comments required.Rp -- 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...@ googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/ msgid/beagleboard/9eef480f- 0293-4b4d-99d9-e4527bac1d25% 40googlegroups.com. For more options, visit https://groups.google.com/d/ optout. -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/0019f98b-3575-495a-af41-77136c618e96%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/622379862.30954.1464123811411.JavaMail.yahoo%40mail.yahoo.com. For more options, visit https://groups.google.com/d/optout.
