Have a look at the example here http://www.nagavenkat.adurthi.com/ titled SPI communication: BeagleBone Black( as Master) to 4 Arduinos( as Slaves ) <http://www.nagavenkat.adurthi.com/?p=479> Hope this will help, Jan
On Wednesday, December 3, 2014 7:35:38 PM UTC+11, [email protected] wrote: > > Thank you for your answer Mickae1. > > But I know how to use SPI with device tree overlay (I use it that way for > my first lcd). I was wondering if it could be possible to declare a simple > GPIO pin (via DTO for example) as a CS one. It would allow me to work with > fbtft driver without having to alter it. > > Never mind, I am writing a new driver (called by dto) to emulate more CS > pins. I will see if it can work at the required speed. > > Le mardi 2 décembre 2014 16:01:03 UTC+1, Mickae1 a écrit : >> >> your answer : >> >> >> http://hipstercircuits.com/enable-spi-with-device-tree-on-beaglebone-black-copy-paste/ >> >> Enjoy, >> >> Le Tue Dec 02 2014 at 15:58:53, <[email protected]> a écrit : >> >>> Hi, >>> >>> I have to connect 2 lcd on a BBB via SPI interfaces (I use fbtft >>> driver). I can only use SPI0 because SPI1 pins are used by I2C for cape >>> eeprom. >>> The problem is that SPI0 has only one CS pin. Is it possible to tell the >>> SPI driver to use a GPIO pin as another CS line ? >>> Am I forced to write a full driver to emulate CS with a GPIO pin ? >>> >>> Thanks in advance for your help. >>> >>> -- >>> 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. >>> >> -- 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.
