is a delay really required after sending each charater to TXREG?

-----Original Message-----
    From: "Jason Harper"<JasonRandHarper@COMPUSERVE.COM>
    Sent: 10/01/04 5:58:01 PM
    To: "PICLIST@MITVMA.MIT.EDU"<PICLIST@MITVMA.MIT.EDU>
    Subject: [PIC]: UART Help needed to PC
      David Dolheguy wrote:

    > static void usartput(unsigned char c)
    > {
    > while(!TRMT1)
    > TXREG1=c;
    > }

    This basically says: for as long as there is something in the transmit
    buffer already, send the same character anyway...  You need a semicolon at
    the end of the 'while' line.

    Note that TRMT isn't usually what you want to poll for serial transmission:
    it doesn't get set until the character is entirely sent, when you can
    actually put another character into TXREG much sooner due to the USART's
    internal buffering.  Poll the TXIF bit instead.

    Also note that continuously sending the same character is not necessarily
    going to result in that character being received at the PC, since there's
    no guarantee that it will sync to your start/stop bits.  An occasional
    pause, of at least one entire character time, will ensure synchronization.
            Jason Harper

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