The beaglebone black should be able to handle serial up to around 3.7Mbit. I do recall someone saying something about potential issues once going over some value above 1Mbit - e.g. it was a long time ago when I read about that . . .
Anyway, read these posts . . . forward to back, or back to forward if you're impatient. https://groups.google.com/forum/#!searchin/beagleboard/serial$20peter|sort:date/beagleboard/GC0rKe6rM0g/b1ql-jPBqOkJ On Tue, Jul 21, 2015 at 1:06 PM, <[email protected]> wrote: > Hi, > > I'm currently running Debian, uname -r ==> 3.8.13-bone47. I am trying to > interface with a PIC that has a 1 M baud rate. OS calls as well as C calls > using termios.h both say they support 1000000, but the communication is > always garbled. If I stty -F /dev/ttyO0 1000000. then check the Baud rate > it responds as set. Setting Baud to 921600 works fine and communication is > clear, but would require an external clock on the PIC. > > Does BBB hardware support 1 MBaud? Does 3.8.13-bone47 support 1 MBaud? Is > there some kernel settings that I have to do to make it work? Is there > another kernel that I could flash that would make it work? Ideally I would > hope someone has an example C code that brings up a 1 MHz connection that > they could share. > > Thanks, > > j > > -- > 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.
