overflow is invalid in oneshot mode

2023-07-18 02:52:56 +00:00 · 2023-07-18 02:52:56 +00:00 · c985f318e4
parent f206338813
commit c985f318e4
1 changed files with 4 additions and 0 deletions
--- a/components/drivers/hwtimer/hwtimer.c
+++ b/components/drivers/hwtimer/hwtimer.c
@ -165,6 +165,10 @@ static rt_ssize_t rt_hwtimer_read(struct rt_device *dev, rt_off_t pos, void *buf
    {
        cnt = (rt_uint32_t)(timer->freq * timer->period_sec) - cnt;
    }
+    if (timer->mode == HWTIMER_MODE_ONESHOT)
+    {
+        overflow = 0;
+    }

    t = overflow * timer->period_sec + cnt/(float)timer->freq;
    tv.sec = (rt_int32_t)t;