Sounds like fun. Good luck :)
On Wed, Jun 4, 2014 at 2:17 PM, <swapnes...@gmail.com> wrote: > Hey William... > > I do know that the Chip Select line can be used to toggle between > different SPI units... But I need data to be collected simultaneously from > multiple sensors... As of now I have 32 sensors - I have clubbed them into > groups of 4 and so I have 8 sets of SPI units that I want to communicate > with "simultaneously"... > > > On Wednesday, June 4, 2014 11:46:21 AM UTC-4, William Hermans wrote: > >> It sounds as though you need to read more concerning what SPI actually >> *is*. >> >> *Devices communicate in master/slave mode where the master device >>> initiates the data frame. Multiple slave devices are allowed with >>> individual slave select lines. Sometimes SPI is called a four-wire serial >>> bus, contrasting with three-, two-, and one-wire serial buses. SPI is often >>> referred to as SSI (Synchronous Serial Interface).* >>> >> >> http://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus >> >> What does this mean ? Multiple devices can share the same data bus, and >> only CS( chip select ) needs be different for each device. CS only needs to >> go high, or low, which hey remarkably is exactly what GPIO pins do ! :) >> >> >> On Wed, Jun 4, 2014 at 7:37 AM, <swapn...@gmail.com> wrote: >> >>> I am trying to run multiple SPI modules (more than the two available on >>> the BBB) to try and read data from a bunch of accelerometers (LSM303D). >>> >>> I was therefore wondering if it would be possible to implement the SPI >>> module using code (preferably C/C++) on the abundant GPIO pins. I have been >>> scanning through a lot of documentation but I cant seem to find anything >>> that fits the bill. >>> >>> Please help --- getting desperate... >>> >>> >>> -- >>> 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. >>> >>> 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 beagleboard+unsubscr...@googlegroups.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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
