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teensy: Enable 8-byte stack alignment for IRQ Handlers.

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This commit is contained in:
Dave Hylands 2014-09-28 10:17:44 -07:00
parent f90b59e610
commit ada691e704
1 changed files with 6 additions and 2 deletions
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8
teensy/main.c
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@ -253,9 +253,13 @@ char *strdup(const char *str) {
#endif
int main(void) {
pinMode(LED_BUILTIN, OUTPUT);
delay(1000);
// TODO: Put this in a more common initialization function.
// Turn on STKALIGN which keeps the stack 8-byte aligned for interrupts
// (per EABI)
#define SCB_CCR_STKALIGN (1 << 9)
SCB_CCR |= SCB_CCR_STKALIGN;
pinMode(LED_BUILTIN, OUTPUT);
led_init();
// int first_soft_reset = true;