#1365 compiling error for pic16f688

[Anonymous]

email: mclain.cox@navy.mil

I have issues while attempting to compile my code for a pic16f688. Here is my code:

#include <pic/pic16f688.h>
#include <stdlib.h>
#include <string.h>

typedef unsigned int configure;

configure at 0x2007 __CONFIG = _FCMEN_OFF &
_IESO_OFF &
_BOD_ON &
_CPD_OFF &
_CP_OFF &
_MCLRE_ON &
_PWRTE_OFF &
_WDT_OFF &
_HS_OSC;

void main()
{

}

to compile I use sdcc -c filename.c

I get a bunch of warnings for pic16f688.h about the absolute address for sfr 'CMCON1' probably out of range, and the same warning for the rest of the stuff like that, then I get this

?ASxxxx-Error<oq> in line 44 of filename.asm
<o> .org in REL area or directive / mnemonic error
<q> missing or improper operators, terminators or delimitors
removing filename.rel

I am running vs 2.7.3 #4903 windows version

Please help, I'm trying to get this chip configured correctly, and this won't let me configure. Thanks

McLain

[Raphael Neider]

Logged In: YES
user_id=1115835
Originator: NO

You should have told SDCC which PORT (mcs51, hc08, pic, pic16, ...) to use and which DEVICE to target. SDCC defaults to the mcs51 target...

Try
sdcc -mpic14 -p16f688 -c filename.c

Furthermore, I recommend using
<code>
// make .c file generic for all PIC14 devices
#include <pic14regs.h>

typedef unsigned int configure;

// __at(ADDR) can be reDEFINEd to something else for other compilers/lint/...
configure __at(0x2007) __CONFIG = _FCMEN_OFF & ...;

void main(void)
{
}
</code>

BTW: The C-library for the pic14 port is non-existant; you wanted to use string.h and stdio.h---their functions are not implemented in the PIC14 libraries. Add their sources (e.g., from sdcc/device/lib/) to your project, adapt them to suit your needs, and compile them as part of your project.

HTH,
Raphael