Hi all,
I try to change the start-up procedure using the following function (as
described in the mspgcc document). However, the MCU don’t start (I don’t
see the LED blink). The reset vector seems ok. Maybe I forget something.
Is there someone who can help me?
Thanks,
Fred
NAKED(_reset_vector__){
extern int _etext;
extern int __data_start;
extern int _edata;
extern int __bss_start;
extern int __bss_end;
Byte1_t *b1Src;
Byte1_t *b1Dst;
// Stop watchdog timer
WDTCTL = WDTPW + WDTHOLD;
// Initialize the .data segment
b1Src = (Byte1_t*)_etext;
b1Dst = (Byte1_t*)__data_start;
while(b1Dst != (Byte1_t*)_edata){
*b1Dst = *b1Src++;
*b1Dst++;
}
// Clear the .bss segment
b1Dst = (Byte1_t*)__bss_start;
while(b1Dst != (Byte1_t*)__bss_end){
*b1Dst = 0;
*b1Dst++;
}
// Debug - Flash the LEDs
P6OUT |= (LED1_RED);
P3OUT |= (LED2_RED);
PreciseWait(30000);
P6OUT &= ~(LED1_RED);
P3OUT &= ~(LED2_RED);
// Jump to main
__asm__ __volatile__("br #main"::);
}
0000ffe0 <InterruptVectors>:
ffe0: 00 25 00 25 00 25 b2 ad 00 25 00 25 b0 ac 00 25
.%.%.%...%.%...%
fff0: 00 25 00 25 00 25 00 25 00 25 00 25 00 25 44 c9
.%.%.%.%.%.%.%D.
0000c944 <_reset_vector__>:
-------------------------------
Frederic Beaulieu, M.Sc.
Research and Development
NewTrax Technologies Inc.
HYPERLINK "http://www.newtraxtech.com/"http://www.newtraxtech.com/
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