PIC18F452 to bigger PIC pic18f4525

karth · Joined: 10 Sep 2003 Posts: 29

i am using Version 3.246 Compiler. I am switching the MCU from PIC18F452 to Pic18F4525. And i am having problem switching from UART to EUART (FULL DUPLEX MODE). can any body give any suggestion regarding

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

There is silicon errata talking about the EUSART.
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=PIC18F4525-I%2FML-ND

karth · Joined: 10 Sep 2003 Posts: 29

The only one is TRIS register but that does not work!!!
need help!!!

this is all the fuses
#include <18F4525.h>
#device adc=10
#fuses NOWDT,WDT128,HS, NOPROTECT, IESO, BROWNOUT, BORV21, NOPUT, NOCPD, STVREN, NODEBUG, NOLVP
#use rs232(baud=4800,xmit=PIN_C6,rcv=PIN_C7,bits=8,parity=N,BRGH1OK,ERRORS)

set_tris_c(0xBC);//added

Guest · Posted: Wed May 21, 2008 4:50 pm

Are you saying you can't do a set_tris_c() command?

Are you sure you need the BRGH10k in the serial statement?

Are you doing any funny 9bit stuff?

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Try a simple program that receives characters typed in a terminal
window and sends them back to the PC. Example:
http://www.ccsinfo.com/forum/viewtopic.php?t=34127&start=1

Modify it for your PIC. Test it. If it doesn't work, then post your modified
program and explain how it fails.

karth · Joined: 10 Sep 2003 Posts: 29

yeah i tried, that it does not work,

i believe the reason is because i am powering the MCU with 3.4V with 20mhz resonator.and I believe 18F4525 is a 5V part >???I am going to try 18LF4525