From c985f318e4ca5271911816c74f021aaca9e258e4 Mon Sep 17 00:00:00 2001
From: "Mr.M" <64891884+martin-calvin@users.noreply.github.com>
Date: Tue, 18 Jul 2023 02:52:56 +0000
Subject: [PATCH] overflow is invalid in oneshot mode

---
 components/drivers/hwtimer/hwtimer.c | 4 ++++
 1 file changed, 4 insertions(+)

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;