GCC does not use #pragma directives; they use function attributes instead.
The syntax for marking an interrupt routine is:
// Timer A0 interrupt service routine
// #pragma vector=TIMER1_A0_VECTOR
// __interrupt
__attribute__((interrupt(TIMER1_A0_VECTOR)))
void TIMER1_A0_ISR(void)
{
Beyond changing that, and removing some of the intrinsics that do not
currently exist in mspgcc, the TI examples should work with it.
Peter
On Mon, May 24, 2010 at 6:12 AM, Andres Vahter <andres.vah...@gmail.com>wrote:
> Hi,
>
> I cannot compile TI's MSP430F21x2 examples with mspgcc.
> It gives me following error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
> ‘__attribute__’ before ‘void’
>
> * Ubuntu 10.04
> * I downloaded mspgcc4 binary from:
> http://sourceforge.net/projects/mspgcc4/files/GCC-4.4.2-GDB-7.0-20091124/20091124-msp430-gcc-4.4.2-gdb-7.0-insight-6.8.7z
> * I unpacked it and copied to /opt dir
> * Then I added following line to .bashrc file: export
> PATH="$PATH:/opt/msp430-gcc-4.4.2/bin"
>
> Actually I'm not sure if I'm using right mspgcc because I have also
> mspgcc-tinyos in my machine (
> http://docs.tinyos.net/index.php/Installing_TinyOS_2.1) maybe that might
> cause problems.
>
> Source main.c:
>
>
> //******************************************************************************
> // MSP430F20x1 Demo - Comp_A, Output Reference Voltages on P1.1
> //
> // Description: Output Comparator_A reference levels on P1.1. Program will
> // cycle through the on-chip comparator_A reference voltages with output
> on
> // P1.1. Normal mode is LPM0, TA0_ISR will interrupt LPM0.
> // ACLK = n/a, MCLK = SMCLK = default DCO
> //
> // MSP430F20x1
> // -----------------
> // /|\| XIN|-
> // | | |
> // --|RST XOUT|-
> // | |
> // | P1.1/CA1|--> Vref
> // | |
> //
> // M. Buccini / L. Westlund
> // Texas Instruments Inc.
> // December 2005
> // Built with CCE Version: 3.2.0 and IAR Embedded Workbench Version: 3.40A
>
> //******************************************************************************
>
>
> #include <msp430x20x1.h>
>
> void delay(void); // Software delay
>
> void main (void)
> {
> WDTCTL = WDTPW + WDTHOLD; // Stop WDT
> CACTL2 = P2CA4; // CA1/P1.1 = +comp
> CCTL0 = CCIE; // CCR0 interrupt enabled
> TACTL = TASSEL_2 + ID_3 + MC_2; // SMCLK/8, cont-mode
> _EINT(); // enable interrupts
>
> while (1) // Loop
> {
> CACTL1 = 0x00; // No reference voltage
> _BIS_SR(LPM0_bits); // Enter LPM0
> CACTL1 = CAREF0 + CAON; // 0.25*Vcc, Comp. on
> _BIS_SR(LPM0_bits); // Enter LPM0
> CACTL1 = CAREF1 + CAON; // 0.5*Vcc, Comp. on
> _BIS_SR(LPM0_bits); // Enter LPM0
> CACTL1 = CAREF1 + CAREF0 + CAON; // 0.55V, Comp. on
> _BIS_SR(LPM0_bits); // Enter LPM0
> }
> }
>
> // Timer A0 interrupt service routine
> #pragma vector=TIMERA0_VECTOR
> __interrupt void Timer_A (void)
> {
> _BIC_SR_IRQ(LPM0_bits); // Clear LPM0 bits from 0(SR)
> }
>
>
> makefile
>
> # makfile configuration
> NAME = leds
> OBJECTS = main.o
> CPU = msp430x2012
>
> CFLAGS = -mmcu=${CPU} -O2 -Wall -g
>
> #switch the compiler (for the internal make rules)
> CC = msp430-gcc-4.4.2
>
> .PHONY: all FORCE clean download download-jtag download-bsl dist
>
> #all should be the first target. it's built when make is run without args
> all: ${NAME}.elf ${NAME}.a43 ${NAME}.lst
>
> #confgigure the next line if you want to use the serial download
> download: download-jtag
> #download: download-bsl
>
> #additional rules for files
> ${NAME}.elf: ${OBJECTS}
> ${CC} -mmcu=${CPU} -o $@ ${OBJECTS}
>
> ${NAME}.a43: ${NAME}.elf
> msp430-objcopy -O ihex $^ $@
>
> ${NAME}.lst: ${NAME}.elf
> msp430-objdump -dSt $^ >$@
>
> download-jtag: all
> msp430-jtag -e ${NAME}.elf
>
> download-bsl: all
> msp430-bsl -e ${NAME}.elf
>
> clean:
> rm -f ${NAME}.elf ${NAME}.a43 ${NAME}.lst ${OBJECTS}
>
> #backup archive
> dist:
> tar czf dist.tgz *.c *.h *.txt makefile
>
> #dummy target as dependecy if something has to be build everytime
> FORCE:
>
> #project dependencies
> main.o: main.c
>
>
>
> If I'm changing CC = msp430-gcc-4.4.2 to CC=msp430-gcc then i got following
> error:
>
> msp430-gcc -mmcu=msp430x2012 -O2 -Wall -g -c -o main.o main.c
> main.c:32: warning: return type of `main' is not `int'
> main.c:53: warning: ignoring #pragma vector
> main.c:54: syntax error before "void"
> main.c: In function `Timer_A':
> main.c:56: warning: concatenation of string literals with __FUNCTION__ is
> deprecated
> make: *** [main.o] Error 1
>
>
> Do I have to change orginal TI example code to get it compile?
> Is makefile OK?
> Is there something wrong with my mspgcc installation?
>
> Andres
>
> ------------------------------------------------------------------------------
>
>
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