MPLAB/C18 Newbie, Simulator Issue

[Fred.Amoson]

I am just starting my first MPLAB/C18 project. I've done tons of PIC programming before, but never with MPLAB, never with C18, and never with an 18 series PIC.

I have a new project set up and I am trying to get the basics working before I get out the bread board and really get down to business. The code that I currently have working doesn't seem to transfer to the simulator properly. PORTA and OSCCON do not change to the variables I tell them to. I've attached a screen shot to describe what I mean a little more.

My final target will be a PIC18LF4423 chip.

Any ideas?

 

[blueroomelectronics]

I'm new to C18 too, but I recall you use the linker with the i in it. ex PIC18LF4423i.lnk for debug.

 

[Fred.Amoson]

Thanks for the suggestion. I tried that adjustment, with the same results.

I was under the impression that you use the i when you are using the ICD2? I am probably wrong on that, I will try to see if I can find out the right answer.

In this scenario I am using the built in "MPLAB SIM" Debugger

 

[blueroomelectronics]

I ran the simulation on MPLAB (I use a 18F1320 as I'm familiar with it) your simulation seems right. You may have to disable A/D, CMCON that sort of thing with your PIC first.

#include <p18cxxx.h>
void main(void)
{
    OSCCON = 0x72;
    TRISA = 0x00;
    PORTA = 0xFF;
}

 

[Fred.Amoson]

You are probably right, I need to look into the A/D, CMCON, etc. more.

I hooked up the real chip to the code, and programmed it. It isn't switching _any_ of the pins high. I assume this is because I haven't set the config or data fuses. To tell it that in in INTRC, etc.

Looking through the datasheet, it seems like I need to set "CONFIG1H". I set CONFIG1H to the proper values by:

#pragma 0x300001 0b00001000

any ideas?

 

[blueroomelectronics]

This might help
http://www.voti.nl/pickit2faq/files/boot_main.c

 

[Fred.Amoson]

Thanks, got the ports blinking. Should be all good from here.