Effectivement, ma langue premiere est le francais!
Its not only my name which can betray me, my written english do the job
also ;)
Thanks very much for this example!
However, I didnt see other examples at your address. Is there example
with function using argument (like int dummyFct(int a, int b))?
Thanks!
Fred
--------------------------------------------
Frederic Beaulieu, M.Sc.
Research and Development
NewTrax Technologies Inc.
HYPERLINK "http://www.newtraxtech.com/"http://www.newtraxtech.com/
-----Original Message-----
From: mspgcc-users-ad...@lists.sourceforge.net
[mailto:mspgcc-users-ad...@lists.sourceforge.net] On Behalf Of thln
Sent: Wednesday, August 24, 2005 11:05 AM
To: mspgcc-users@lists.sourceforge.net
Subject: Re: [Mspgcc-users] Assembler file organisation
Salut ! Avec un nom comme ça, je pense que tu parles français !
Assembler file in C project
// *** test.c ***
/* you should declare your assembler function in your C file */
extern void _Init_System(void);
int main(void)
{
/* You can call the function like this */
_Init_System();
while(1)
{
/* Xor bit0 of P1 */
P1OUT^=0x01;
}
}
// *** end of test.c ***
// *** system.asm ***
; "hardware.h" is your IO, System definition (for the minimal test you
create an empty file)
#include "hardware.h"
// declaration of your function (visible for the linker process)
.global _Init_System
.text
;-----------------------------------------------------------------------
------
; ENTREE : Rien
; SORTIE : Registres systèmes
; MODIF :
;-----------------------------------------------------------------------
------
_Init_System:
; init P1
mov.b #0x01,&P1DIR
mov.b #0x00,&P1SEL
mov.b #0x00,&P1OUT
mov.b #0x00,&P1IFG
mov.b #0x00,&P1IE
ret
// *** end of system.asm***
// *** makefile ***
.SUFFIXES: # Delete the default suffixes
NAME=aout.elf
CC=msp430-gcc
CPU=msp430x123
DUMP=msp430-objdump
ASMOPT = -mmcu=${CPU}
CFLAGS = -mmcu=${CPU} -O1 -ffixed-r4 -ffixed-r5
LDFLAGS = -mmcu=$(MCU) -Wl,-Map=$(NAME).map --cref
OBJECTS = test.o system.o
all: ${NAME}
%.o: %.c hardware.h
$(CC) ${CFLAGS} -c $<
$(DUMP) -DS $@ > $<.lst
%.o: %.asm hardware.h
$(CC) -x assembler-with-cpp ${ASMOPT} -D_GNU_ASSEMBLER_ -o $@ -c $<
${NAME}: ${OBJECTS}
$(CC) -mmcu=${CPU} $(LDFLAGS) -o $@ $^
$(DUMP) -DS aout.elf > aout.lst
msp430-objcopy -O ihex $@ $...@.hex
.PHONY: clean
clean:
rm -f ${NAME} ${NAME}.hex ${OBJECTS}
// *** end of makefile ***
This is a minimal project ! I advise you to download examples projects
here :
HYPERLINK
"http://cvs.sourceforge.net/viewcvs.py/mspgcc/examples/"http://cvs.sourc
eforge.net/viewcvs.py/mspgcc/examples/
you can modify some examples for your tests.
What is your application ?
Me, I use MSP430F427 for instrumentation devices.
A+
----- Original Message -----
From: HYPERLINK "mailto:fbeaul...@newtraxtech.com"Frederic Beaulieu
To: HYPERLINK
"mailto:mspgcc-users@lists.sourceforge.net"mspgcc-us...@lists.sourceforg
e.net
Sent: Wednesday, August 24, 2005 3:02 PM
Subject: RE: [Mspgcc-users] Assembler file organisation
Is there someone who know how to call an assembler function define in a
.S file from a C program?
--------------------------------------------
Frederic Beaulieu, M.Sc.
Research and Development
NewTrax Technologies Inc.
HYPERLINK "http://www.newtraxtech.com/"http://www.newtraxtech.com/
-----Original Message-----
From: HYPERLINK
"mailto:mspgcc-users-ad...@lists.sourceforge.net"mspgcc-users-ad...@list
s.sourceforge.net [mailto:mspgcc-users-ad...@lists.sourceforge.net] On
Behalf Of Frederic Beaulieu
Sent: Tuesday, August 23, 2005 11:43 AM
To: MSP430 mspgcc Groups
Subject: [Mspgcc-users] Assembler file organisation
Hi all,
I want to do my next project using only assembly to learn a little bit
more about this language. I never use it before.
I wonder if someone can explain to me how to manage a large project (how
you manage your file .s .S .h, how you
separate your function in these files, how you organize your comments,
etc). The example from TI are to basic to learn
from these (too small). May be you can send me one of your old (even
very old ;)) project.
Thanks in advance!
Fred
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