Hi Gerald. I am starting with Beaglebone and I need use a LCD, but I need almost 2 UART free. Can I generate UART by software in any GPIO?. Thanks. I will apreciate your answer. Best regards. Christian.
El sábado, 7 de septiembre de 2013, 11:10:49 (UTC-3), Gerald escribió: > > If you don't need LCD, yes, you can use that pin as a UART. > > As I already said, pins can have more that one function based on the > pinmux settings. You can have UART0 or UART1 on the same pin, but not at > the same time. Pick one. The table shows all of the functions that CAN be > on that pin. This process is called pin muxing. Nothing is wrong! > > Handshake is RTS and CTS, l suggest you google serial ports or RS232 and > learn what those signals do. > > > Gerald > > > > > On Sat, Sep 7, 2013 at 7:26 AM, <pognon...@free.fr <javascript:>> wrote: > >> Hello all BBB users >> >> i'm looking for the number of FREE UART available (need only RX/TX pins, >> no handshake on the different connectors of the boards. >> >> I search on the BBB_SRM.pdf, and found on page 54, table 5 : 6 UART >> available on the processor. >> the UART0 seem reserved for debug terminal purpose. >> >> I find >> UART1 on table 10 (P9 pin 24/26) which are noted UART0 on the right >> column .. what's wrong ? >> UART2 on table 10 (P9 pin 21/22) which are noted UART0 on the right >> column .. what's wrong ? >> UART3 I find only RTS CTS on pin P8 34/36 ..? >> UART4 on table 12 (P9 pin 11/13) which are, on the other columns, other >> pin name .. ? >> UART5 on header P8 (table 11), on mode 4 (and UART2 handshake on mode 6) >> .. I don't know exactly what is it for now. >> UART5 seem shared with LCD pins (table14). but I don't need LCD on my >> application. so may I use UART5 ? >> >> >> so.. i'm confuse .. for now, I need to know which UART are free and >> available for the application user ? >> >> thanks for your help, regards >> Phil >> >> -- >> 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 <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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.
