diff options
Diffstat (limited to 'core/cortex-m/timer.c')
| -rw-r--r-- | core/cortex-m/timer.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/core/cortex-m/timer.c b/core/cortex-m/timer.c index 14e59c900f..994f9c1245 100644 --- a/core/cortex-m/timer.c +++ b/core/cortex-m/timer.c @@ -138,6 +138,13 @@ int timer_cancel(task_id_t tskid) void usleep(unsigned us) { uint32_t evt = 0; + + /* If task scheduling has not started, just delay */ + if (!task_start_called()) { + udelay(us); + return; + } + ASSERT(us); do { evt |= task_wait_event(us); |