printf problems using pic18f2525

[lentracy]

I am starting to develop a small embedded application using the PIC18F2525 MCU. I am experiencing some odd behavior using printf. Any strings I enter into the printf (such as something like printf("Hello world")) display perfectly. The characters I echo back all come accross fine, but whenever I try to display the contents of a variable, such as:

int8 x = 50;
printf("x = %d\n\r", x);

will show something like:

x = <garbage>

I've used the same compiler (I'm not exactly sure what version we have in the lab, but can post it tomorrow if it becomes relevant) with PIC16 devices, and haven't had the same problem.

Any help with this would be greatly appreciated. It has become a rather frustrating problem for me.

Leonard

[PCM programmer]

1. Post a very short test program that shows the problem.
2. Post your compiler version.
3. Are you testing this with hardware or a simulator ?
4. If hardware, describe the display device (Hyperterm, LCD, etc.).

This is an example of a test program:

[lentracy]

Here is the program I was using for test. I am using a 20MHz oscillator, and reading the input on hyperterm. I tried several different baud rates, but all had the same results. I also experimented using different length integers. As I said before, I'm not 100% sure on the compiler version, but I'll be able to post it tomorrow.

#include <18F2525.h>
#device adc=8
#fuses NOWDT,WDT128,HS, NOPROTECT, IESO, BROWNOUT, BORV20, NOPUT, NOCPD, STVREN, NODEBUG, NOLVP, NOWRT, NOWRTD, NOEBTR, NOCPB, NOEBTRB, NOWRTC, NOWRTB, FCMEN, XINST, NOPBADEN, LPT1OSC, MCLR
#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8)
#use i2c(Master,Fast,sda=PIN_C4,scl=PIN_C3)

void main() {
int16 kp=50;
printf("TEST\n\rI initialized kp to 50\n\r");
printf("kp = %ld\n\rEND TEST\n\r\n\r", kp);

while(1);
}

[PCM programmer]

[lentracy]

I'll give that a try. Thanks for your help.

[lentracy]

That solved my problem, thank you. Does CCS version 4 support the extended instruction set? I realized that we are using 3.224 here.

[PCM programmer]