please explain this issue when compiling code...

ktallevi · Joined: 17 Dec 2005 Posts: 58

When compiling code in CCS/MPLAB, the first line always appears like this...
EF52 F004 FFFF FFFF 6AF7 0F1C 6EF6 0E08

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Look at the .LST file for an explanation. You can find it in your project
folder.

ktallevi · Joined: 17 Dec 2005 Posts: 58

well according to the list file of one of my projects...

00000: GOTO 058C

ktallevi · Joined: 17 Dec 2005 Posts: 58

seems only a portion of my posts are actually getting posted, ok so that jump still doesnt explain WHY its there

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

The PIC starts executing code at address 0000 upon reset.
The compiler puts an instruction there to jump to the start of the program.
Scroll down in the .LST file until you get to address 0x058C.
What does the compiler show is there ? (In C source code)

ktallevi · Joined: 17 Dec 2005 Posts: 58

.................... void main(void)
.................... {
*
0058C: CLRF FF8
0058E: BCF FD0.7

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

That answers your question. The code you see at the start of main()
is the compiler's start-up code. It does a small amount of initialization
of ports and registers, and then begins executing your code.

ktallevi · Joined: 17 Dec 2005 Posts: 58

thanks for your help, this all started when i was converting loader.c to work with pic18f8722 (which writes 64bytes at a time), i was reading the packet and realized there was data missing. Ill finish the bootloader and post it.