diff options
Diffstat (limited to 'libmaple/systick.c')
| -rw-r--r-- | libmaple/systick.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libmaple/systick.c b/libmaple/systick.c index 388f7aa..5025328 100644 --- a/libmaple/systick.c +++ b/libmaple/systick.c @@ -66,7 +66,9 @@ void systick_enable() { } /** - * Attach a callback called each ms. + * @brief Attach a callback to be called from the SysTick exception handler. + * + * To detach a callback, call this function again with a null argument. */ void systick_attach_callback(void (*callback)(void)) { systick_user_callback = callback; @@ -77,7 +79,7 @@ void systick_attach_callback(void (*callback)(void)) { */ void __exc_systick(void) { - if (systick_user_callback) { + if (systick_user_callback) { systick_user_callback(); } systick_uptime_millis++; |