Dear Fellow Piclisters,
I'm looking for a wee bit of help. I can't help but feel rather silly having
to ask about something that appears to be so simple, but I just can't get it
to work.

I'm trying to transmit a string of data to a CML FFSK Modem using
Synchronous Slave Mode. I've got the WDT set with the prescaler at the
maximum, but it overflows.
Here's the bit of transmit code. There's hardly anything there so I don't
know where I've gone wrong.

; Data Transmission Subroutine
send_data
 CLRWDT

 movlw START_BIT
 movwf TXREG

 btfss TXSTA,TRMT
 goto $-1

 movlw CODE#1
 movwf TXREG


and here are the initialisation commands for the registers:-

; Set Initial Registers
clrf PORTA
clrf PORTB
clrf PORTC

 bsf T1CON,0        ; Switche TMR1 On


 bsf STATUS,RP0 ; goto page 1

 movlw b'00010000'
 movwf TRISA

 movlw b'00000001'
 movwf TRISB

 movlw b'11000000'
 movwf TRISC

 movlw b'00111001'
 movwf PIR1

 movlw b'10000110'
 movwf RCSTA

 movlw b'00100001'
 movwf PIE1

 movlw b'00010000'
 movwf TXSTA

 movlw .207  ; 4800 baud
 movwf SPBRG



I thankyou for reading this far as I know there are a lot of messages on the
list. If you can help I'd really appreciate it.

John Hebenton