Hi,
I just tried installing the new toolchain, r206599 from the GCC SVN and the
latest newlib from CVS.
However when I try to compile simple programs for small chips it seems just
the runtime takes up more SRAM than the chip has. Eg.
$ cat simple.c
#include <msp430.h>
static inline void delay(unsigned int n) {
__asm__ __volatile__ (
"1: \n"
" dec %[n] \n"
" jne 1b \n"
: [n] "+r"(n));
}
int main(void) {
WDTCTL = WDTPW | WDTHOLD; /* watchdog_off(); */
P1DIR |= BIT0; /* pin_mode_output(1.0); */
while (1) {
P1OUT |= BIT0; /* pin_high(1.0); */
delay(0xFFFF);
P1OUT &= ~BIT0; /* pin_low(1.0); */
delay(0xFFFF);
}
}
$ msp430-elf-gcc -mmcu=msp430g2231 -Os -static -Wall -Wextra simple.c -o
simple.elf
/usr/lib/gcc/msp430-elf/4.9.0/../../../../msp430-elf/bin/ld: simple.elf
section `.bss' will not fit in region `RAM'
/usr/lib/gcc/msp430-elf/4.9.0/../../../../msp430-elf/bin/ld: region `RAM'
overflowed by 16 bytes
collect2: error: ld returned 1 exit status
So am I doing something wrong or will it work eventually and I'm just being
impatient?
/Emil
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