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path: root/components/drivers/hwtimer/hwtimer.c
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Diffstat (limited to 'components/drivers/hwtimer/hwtimer.c')
-rw-r--r--components/drivers/hwtimer/hwtimer.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/components/drivers/hwtimer/hwtimer.c b/components/drivers/hwtimer/hwtimer.c
index f17a08bd8e..27ffff6025 100644
--- 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;