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| author | Dave Hylands <dhylands@gmail.com> | 2014-09-28 10:17:44 -0700 |
|---|---|---|
| committer | Dave Hylands <dhylands@gmail.com> | 2014-09-28 10:17:44 -0700 |
| commit | ada691e704c0c8dcf4cb1aaeba5d76c02e89f03b (patch) | |
| tree | d059cef8b9c658696d87b9e8f9ad119629a81733 | |
| parent | f90b59e61035c194470b7de589cfc3b44484b1fe (diff) | |
| download | micropython-ada691e704c0c8dcf4cb1aaeba5d76c02e89f03b.tar.gz micropython-ada691e704c0c8dcf4cb1aaeba5d76c02e89f03b.zip | |
teensy: Enable 8-byte stack alignment for IRQ Handlers.
| -rw-r--r-- | teensy/main.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/teensy/main.c b/teensy/main.c index 3b2994c86f..bc687fa675 100644 --- a/teensy/main.c +++ b/teensy/main.c @@ -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; |