• State Not Answered
  • +1 person also asked this people also asked this
  • Locked Locked
  • Replies 27 replies
  • Subscribers 23 subscribers
  • Views 7011 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Can't get TI flag to be set when writing into SBUF

V K

Hi,

I'm trying to simulate working of a UART.
When I write into SBUF, the TI flag doesn't
go high even though I have enabled interrupts.

Is there any way I can simulate it using SOUT VTREG. can't find example how to use SOUT.

Parents Reply Children
  • 0 in reply to Andy Neil

    Hey Guys,

    That was not the problem. It can work
    at any Baud rate. Finally got it
    working by seeing the HELLO.c in Examples,
    but I don't know how!.

    Here is my code:-
    if (TI == 1) /* check for transmit interrupt flag */
    {
    TI = 0;
    P1 ^= 0x01; /* Toggle P1.0 each time we print */
    SBUF = "H";
    }

    Also Need to keep the serial window open for
    the output to print.

    Still can't understand why TI flag doesn't
    raise if I don't toggle port pin 1.0 (T2).

    Thanks.

  • 0 in reply to V K

    Perhaps you could post the smallest complete, compilable program which shows the problem.

    Please cut and paste this from your editor to guarantee that what you post is what you are using.