hi Gerald, Thanks for the reply.
So - is what I quoted earlier true with the BBB? That there can only be 2 interrupts per bank? But on this page: http://beagleboard.org/Support/bone101, it says each GPIO pin can be used as an interrupt, in GPIO mode. "GPIO mode," I'm guessing, is mode7? Do I just set all pins to mode7, and I can have as many interrupts as I want? Right now, I've only found 3 pins that work as interrupts. The others do nothing when I signal them. Sorry, I don't really understand the TRM...it's quite intimidating and confusing to me. Thanks for your patience. On Friday, October 24, 2014 6:41:05 AM UTC-7, Gerald wrote: > > Close, the BBB has 69 and it is 3.3V. You can get all the BBB information > on the Wiki, including the SRM. > > http://www.elinux.org/Beagleboard:BeagleBoneBlack > > Interrupts are covered in the TRM for the processor. Pin muxing is also > covered there. Banks mean pin mux modes. > > The SRM does not reprint the datasheets and technical manual for the all > the parts inside it. Sort of like a waste of time. > > http://www.ti.com/product/am3358 for the TRM > > > Gerald > > > > On Thu, Oct 23, 2014 at 8:54 PM, <[email protected] <javascript:>> wrote: > >> hi Guys, >> >> I'm trying to subscribe to rising edges on 8 GPIOs. I have found this >> online about the beaglebone (not black): >> >> >> *A maximum of 66 GPIO pins are accessible from the expansion header. All >> of these pins are 3.3V and can be configured as inputs or outputs. Any GPIO >> can be used as an interrupt and is limited to two interrupts per GPIO Bank >> for a maximum of eight pins as interrupts.* >> Is the same true for the BBB? I've not tried all the ports, but I've only >> been able to get 3 interrupts working so far. Furthermore, how are the pins >> banked? The reference manual is silent on this subject. I found a table on >> page 70-72, which groups the GPIOs under "Mode 7: as belonging to 0,1,2, or >> 3 -- is this what is meant by different banks? >> >> What are the limitations on interrupts for the BBB? Why is this nowhere >> mentioned (that I could find??)? Thanks! >> >> -- >> 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] <javascript:>. >> 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.
