RS232 Debugger

ajt · Joined: 07 Sep 2003 Posts: 110

Working with a PIC18LF452 using v4.114. I have RB5 connected to the PGM line on the ICD-64. Included is:
#use rs232(DEBUGGER,xmit=PIN_B5,rcv=PIN_B5).

A simple printf("xyz\r\n"); does not show up on the debug monitor. Had to resort to using a "real" serial port and printf's working as expected that way.

Is this a bug in the IDE/compiler? Is there a workaround?
_________________
Al Testani

temtronic · Posted: Tue Mar 22, 2011 2:50 pm

is this allowable ?

#use rs232(DEBUGGER,xmit=PIN_B5,rcv=PIN_B5).
-----------------------------------------| and -------|

both xmit and rcv on the same pin ?

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

I don't have the CCS debugger or their IDE, so I can't test this, but
according to this thread here, the serial debugger channel only works
if the target PIC has a Vdd voltage greater than 3.1 volts:
http://www.ccsinfo.com/forum/viewtopic.php?t=29499
I note that you're using the "LF" package. What's your Vdd ?

Temtronic: Yes, the CCS manual says they should both be the same
pin for the Debugger serial channel.