Is there a way to not have to poll the UART of an AVR?












4












$begingroup$


So I'm receiving data over UART from another AVR. However I'm doing other stuff so dont want to have constantly keep polling the UART. I know there are interrupts but i can only see one for receive complete. Which I assume still requires me to poll to the complete the transfer.






avr embedded







share|improve this question











$endgroup$








  • 1




    $begingroup$
    Why would you need to poll to initiate a transfer? Anyway, there are interrupts for transmission completion as well. I am not very into AVR, but these can be called "TX empty" or "FIFO empty" or FIFO threshold" or similar.
    $endgroup$
    – Eugene Sh.
    4 hours ago
















4












$begingroup$


So I'm receiving data over UART from another AVR. However I'm doing other stuff so dont want to have constantly keep polling the UART. I know there are interrupts but i can only see one for receive complete. Which I assume still requires me to poll to the complete the transfer.






avr embedded







share|improve this question











$endgroup$








  • 1




    $begingroup$
    Why would you need to poll to initiate a transfer? Anyway, there are interrupts for transmission completion as well. I am not very into AVR, but these can be called "TX empty" or "FIFO empty" or FIFO threshold" or similar.
    $endgroup$
    – Eugene Sh.
    4 hours ago














4












4








4





$begingroup$


So I'm receiving data over UART from another AVR. However I'm doing other stuff so dont want to have constantly keep polling the UART. I know there are interrupts but i can only see one for receive complete. Which I assume still requires me to poll to the complete the transfer.






avr embedded







share|improve this question











$endgroup$




So I'm receiving data over UART from another AVR. However I'm doing other stuff so dont want to have constantly keep polling the UART. I know there are interrupts but i can only see one for receive complete. Which I assume still requires me to poll to the complete the transfer.






avr embedded




avr embedded






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 4 hours ago







Adam Makin

















asked 4 hours ago









Adam MakinAdam Makin

504




504








  • 1




    $begingroup$
    Why would you need to poll to initiate a transfer? Anyway, there are interrupts for transmission completion as well. I am not very into AVR, but these can be called "TX empty" or "FIFO empty" or FIFO threshold" or similar.
    $endgroup$
    – Eugene Sh.
    4 hours ago














  • 1




    $begingroup$
    Why would you need to poll to initiate a transfer? Anyway, there are interrupts for transmission completion as well. I am not very into AVR, but these can be called "TX empty" or "FIFO empty" or FIFO threshold" or similar.
    $endgroup$
    – Eugene Sh.
    4 hours ago








1




1




$begingroup$
Why would you need to poll to initiate a transfer? Anyway, there are interrupts for transmission completion as well. I am not very into AVR, but these can be called "TX empty" or "FIFO empty" or FIFO threshold" or similar.
$endgroup$
– Eugene Sh.
4 hours ago




$begingroup$
Why would you need to poll to initiate a transfer? Anyway, there are interrupts for transmission completion as well. I am not very into AVR, but these can be called "TX empty" or "FIFO empty" or FIFO threshold" or similar.
$endgroup$
– Eugene Sh.
4 hours ago










1 Answer
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9












$begingroup$

There are interrupt vectors for both RXC and TXC (RX and TX complete) on AVRs. You should never have to poll for these unless you want to.



AVRFreaks has a nice post on this, and so does the manufacturer.






share|improve this answer









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    9












    $begingroup$

    There are interrupt vectors for both RXC and TXC (RX and TX complete) on AVRs. You should never have to poll for these unless you want to.



    AVRFreaks has a nice post on this, and so does the manufacturer.






    share|improve this answer









    $endgroup$


















      9












      $begingroup$

      There are interrupt vectors for both RXC and TXC (RX and TX complete) on AVRs. You should never have to poll for these unless you want to.



      AVRFreaks has a nice post on this, and so does the manufacturer.






      share|improve this answer









      $endgroup$
















        9












        9








        9





        $begingroup$

        There are interrupt vectors for both RXC and TXC (RX and TX complete) on AVRs. You should never have to poll for these unless you want to.



        AVRFreaks has a nice post on this, and so does the manufacturer.






        share|improve this answer









        $endgroup$



        There are interrupt vectors for both RXC and TXC (RX and TX complete) on AVRs. You should never have to poll for these unless you want to.



        AVRFreaks has a nice post on this, and so does the manufacturer.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 4 hours ago









        evildemonicevildemonic

        2,070618




        2,070618






























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