From 0a263cb121c4905d907fdd0bacf43747393817c5 Mon Sep 17 00:00:00 2001
From: yueling hu <502966985@qq.com>
Date: Thu, 22 May 2025 10:18:56 +0800
Subject: [PATCH 1/3] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20rt=5Ftick=5Fget=5Fdelt?=
 =?UTF-8?q?a=20=E5=87=BD=E6=95=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 include/rtthread.h |  1 +
 src/clock.c        | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/include/rtthread.h b/include/rtthread.h
index a1c0e77a038..103e26e894e 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -98,6 +98,7 @@ void rt_object_put_sethook(void (*hook)(struct rt_object *object));
  * clock & timer interface
  */
 rt_tick_t rt_tick_get(void);
+rt_tick_t rt_tick_get_delta(rt_tick_t base);
 void rt_tick_set(rt_tick_t tick);
 void rt_tick_increase(void);
 void rt_tick_increase_tick(rt_tick_t tick);
diff --git a/src/clock.c b/src/clock.c
index 3481f22c61c..d2871c818d8 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -73,6 +73,25 @@ rt_tick_t rt_tick_get(void)
 }
 RTM_EXPORT(rt_tick_get);
 
+/**
+ * @brief    This function will return delta tick from base.
+ *
+ * @param    base to consider
+ * 
+ * @return   Return delta tick.
+ */
+rt_tick_t rt_tick_get_delta(rt_tick_t base)
+{
+    rt_tick_t delta;
+    rt_tick_t tnow = rt_tick_get();
+    if (tnow >= base)
+        delta = tnow - base;
+    else
+        delta = RT_TICK_MAX - base + tnow + 1;
+    return delta;
+}
+RTM_EXPORT(rt_tick_get_delta);
+
 /**
  * @brief    This function will set current tick.
  *

From bb7b523d307caa2f3420d6dedfcd179690e894b7 Mon Sep 17 00:00:00 2001
From: yueling hu <502966985@qq.com>
Date: Thu, 22 May 2025 19:37:36 +0800
Subject: [PATCH 2/3] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20rt=5Ftick=5Fget=5Fdelt?=
 =?UTF-8?q?a?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/clock.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/clock.c b/src/clock.c
index d2871c818d8..794b51da7f0 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -82,13 +82,11 @@ RTM_EXPORT(rt_tick_get);
  */
 rt_tick_t rt_tick_get_delta(rt_tick_t base)
 {
-    rt_tick_t delta;
     rt_tick_t tnow = rt_tick_get();
     if (tnow >= base)
-        delta = tnow - base;
-    else
-        delta = RT_TICK_MAX - base + tnow + 1;
-    return delta;
+        return tnow - base;
+    
+    return RT_TICK_MAX - base + tnow + 1;
 }
 RTM_EXPORT(rt_tick_get_delta);
 

From cfd5eba209c501ff60b4de276356f573921c1a1a Mon Sep 17 00:00:00 2001
From: yueling hu <502966985@qq.com>
Date: Fri, 23 May 2025 07:17:19 +0800
Subject: [PATCH 3/3] =?UTF-8?q?=E6=9B=B4=E6=96=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/clock.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/clock.c b/src/clock.c
index 794b51da7f0..4277fadc0c0 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -85,7 +85,6 @@ rt_tick_t rt_tick_get_delta(rt_tick_t base)
     rt_tick_t tnow = rt_tick_get();
     if (tnow >= base)
         return tnow - base;
-    
     return RT_TICK_MAX - base + tnow + 1;
 }
 RTM_EXPORT(rt_tick_get_delta);