Thank you very much for the reply. I have tried numerous types of loops including yours and haven't had much luck. Using the code below, I get some odd results. Hopefully someone can shed some light on the problem.

$MOD831
CSEG

ORG 0000h
	LJMP BEGIN
ORG 40h

BEGIN:
	MOV SCON,#50h
	MOV TMOD,#20h
	MOV TH1,#253
	SETB TR1

TEST:
	CLR TI
	MOV SBUF,#'a'
	JNB TI,$
	LJMP TEST

 

Using the above code, I get a '=' in HyperTerm instead of an 'a'. Replacing the 'a' with 'A' yields a '}'. However, replacing the 'a' with a 'U' yields a 'U' like it should in HyperTerm.

The character I receive repeats every time I try it so I would tend to think it's not a noise issue. I have the baudrate set to 9600, 8 bits, 1 stop bit, and no flow control in HyperTerminal and believe I have the same settings in the above code. What am I missing here?

Confused as ever,
Brian