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Guys, I have inexcusably wasted your time.

I have wires on my protoboard that run from the I2C pins first to my EEPROM, then cascade over to my light modules. It seems that when I swapped the 2520s ...

Thanks for the replies, guys!

1. I am using the internal oscillator at 8MHz with no PLL

2. I am running the system at 3.3 volts, running a 5.2 volt cell phone wall wart (800mA) through a TC1263 ...

Gentlemen of the forum-->

I have been using an 18F2520 for my current project without error, but I ran out of program ROM. So I got a sample lot of 3 18LF2620s, included the proper header, and l ...

Kind Sirs-->

I left the prototypes alone, but I removed the ampersands from the function call for transformFrame2(this_frame->columns[cycle] = this_column; to
this_frame->columns& ...

Gentlemen-->

I am getting an unexpected type conversion error in my program where I pass two structures into a function as pointers...

Structure definitions:
static struct columnMAX7313
...

Yikes! You learn something new everyday - Guess I'll be putting a few resistors in my boards... Embarassed

Look at the #use rs232 portion of the manual - there is an option called "INVERT" that will allow your PIC to talk directly with a generic COM port (in this case on the PC) without any true RS-232 lev ...

You could also enter the code as follows:

#rom 0xF00000 = {
0x6BA1, //EEPROM Address 0x00 & 0x01
0x9D1C, //EEPROM Address 0x02 & 0x03
0x2AFE //EEPROM Address 0x04 & 0x05
...

Yes PCM, Bravo!

It took me about half an hour to find your post, but it answered all of my questions save one: Where is this #ROM type qualifier documented in the CCS documentation? Rolling Eyes

I imagine that a self-contained handheld module like the eTrex has standard (inverted) serial I/O. The PIC's hardware UART is TRUE LEVEL (not inverted) serial I/O. Perhaps this answers your question? ...

OK folks, here is the code I've been using since my fifth post-->

//Begin pre-processor directives//
#include <18F2520.h>
#include <string.h>
#fuses INTRC_IO, NOWDT, NOLVP, PUT, N ...

Friends-->

I put the swrs232 stream through a MAX232, and I get the same results. Also, I am using the meLabs serial programmer, which is not an ICD.

Since my usage of FGETS() is in a non-int ...

hamletT-->

You are absolutely right about the ISR - I only used it because fgets() wouldn't work otherwise. I'd MUCH rather not use the interrupt for this purpose. Also, it seems that you refer ...

Comrades-->

OK, here is my demo program:
//Begin pre-processor directives//
#include <18F2520.h>
#include <string.h>
#fuses INTRC, NOWDT, NOLVP, PUT, NOPROTECT, WDT64
#use delay ...

Friends-->

Thanks for all of the sound advice - I had been running my PIC at 5v only because I thought my programmer wouldn't erase it any lower than at 5v. I have been flashing it recently with ...