Serin woes - qualifiers not working

[Bruce]

Does this work on your 12F509?

DEFINE DEBUG_BAUD 9600
DEFINE DEBUGIN_REG GPIO
DEFINE DEBUGIN_BIT 1
DEFINE DEBUGIN_MODE 0 '1=inverted

X 	var 	byte			' dummy variable

' Pin Assignments
SCADAin		var gpio.1		' data in via MAX232
Ready		var gpio.4		' signal main processor to send data

	low ready	' set low

' config
	TRISIO = %000010		' set I/O directions (0 = output, 1 = input)
	OPTION_REG = %11011111	' 12F508/9  bit 6 disables weak pull-ups

Main:
	debugin 200,NoOp,[wait($0F)]	' wait for address and command

	pause 10		' wait for serial burst to end
	high Ready	' signal main processor to send current data
	pause 2		' with a 2mS pulse
	low ready

	goto main
	
NoOp:
	GOTO Main
	
	END

[tekart]

Bruce,
It WORKS! I had tried variations of DEBUGIN before but must have gotten the setup wrong! THANKS MILLIONS - you have no idea how much time I have put in on this (well, maybe you do...).

Still don't know why SERIN did not work.

Guy

[Bruce]

Hi Guy,

Glad I could help.

One problem was having RETURN in NoOp. The timeout/label option for serin/serin2/debugin use a GOTO to jump to NoOp. Not good since you have no idea what's on the call stack, and no idea just where it's going RETURN to when it lands on this return after only a few mS when it times-out.

Also .. serin/serout2 don't always work as expected at 4MHz for 9600 bps. debugin does.

If you refer back to my 1st post you'll see that I hinted about all of these potential show-stoppers...;o)