12F683 Serial Comms

[ScaleRobotics]

Looks very close.

If you are still using a rs232, then you want True, if you are not, then just as you did, with inverted.

[ross246]

Ah thanks for pointing that out. I was using a max232 with 'n' and not 't' :P

Working code:

Include "modedefs.bas"

OSCCON = %01100000      'set for 4mhz internal
CMCON0 = 7              'TURN COMPARITORS OFF
ANSEL  = %00000000      'Set A/D OFF
ADCON0 = %00000000      'Analog converter OFF 

rcx var GPIO.4 'input pin
tcx var GPIO.1 'output pin

stat VAR byte

Main:
serin rcx,t2400,STAT
pause 100
 SEROUT tcx,t2400,[stat]
GOTO Main
END

Is a max232 needed? I haven't had much success without it in the past but I might consider trying to lose it since space is a bit tight in the dongle case.

[ScaleRobotics]

Is a max232 needed? I haven't had much success without it in the past but I might consider trying to lose it since space is a bit tight in the dongle case.

When you use a hardware serial port on a pic16 device, you need an RS232. If you use hardware serial on a PIC18, then you can invert the bits to get away without one.

For degug or serin/out you don't need one. You can follow the directions in the manual for the resistor size to protect your pic.

[ross246]

Awesome thanks so much for your help. Just got to search through the manual now. 10k sticks in my head for some reason but I will check.

Thanks again.

[ScaleRobotics]

Awesome thanks so much for your help. Just got to search through the manual now. 10k sticks in my head for some reason but I will check.

Not a problem, great to see you got it going.

It's 1K resistor for serout, and 22K (or so) for serin pins.