Did you check for other availability? Bit banging a UART can be done but I doubt you will get the results you want.
Gerald On Fri, Nov 13, 2015 at 5:41 PM, <[email protected]> wrote: > 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, <[email protected]> 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 [email protected]. >>> 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Gerald [email protected] http://beagleboard.org/ -- 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.
