diff --git a/bsp/wch/arm/Libraries/ch32_drivers/drv_hwtimer_ch32f10x.c b/bsp/wch/arm/Libraries/ch32_drivers/drv_hwtimer_ch32f10x.c
index 6b22e0d5d453ec8f273021e9d57410692e029eb3..c89b28b3e98ff116808600fb050abf7fec6c4151 100644
--- a/bsp/wch/arm/Libraries/ch32_drivers/drv_hwtimer_ch32f10x.c
+++ b/bsp/wch/arm/Libraries/ch32_drivers/drv_hwtimer_ch32f10x.c
@@ -73,17 +73,16 @@ static void ch32f1_hwtimer_init(struct rt_hwtimer_device *device, rt_uint32_t st
 
     if (state)
     {
-        ch32f1_hwtimer_clock_init(hwtimer_dev->periph);
+        ch32f1_tim_clock_init(hwtimer_dev->periph);
 
         hwtimer_info = ch32f1_hwtimer_info_config_get(hwtimer_dev->periph);
 
-        clk = ch32f1_hwtimer_clock_get(hwtimer_dev->periph);
+        clk = ch32f1_tim_clock_get(hwtimer_dev->periph);
 
         prescaler_value = (rt_uint16_t)(clk / hwtimer_info->minfreq) - 1;
 
         /*
-        * set interrupt callback one or each time need total time =
-        *  (cnt + 1) * (1 / (clk/(prescaler_value + 1) ) )
+        * (1 / freq) = (cnt + 1) * (1 / (clk/(prescaler_value + 1) ) )
         */
 
         TIM_TimeBaseInitType.TIM_Period = hwtimer_info->maxcnt - 1;
@@ -132,8 +131,7 @@ static rt_err_t ch32f1_hwtimer_start(struct rt_hwtimer_device *device, rt_uint32
     hwtimer_dev = (struct hwtimer_device *)device;
 
     /*
-    * interrupt callback one or each time need total time =
-    *  (cnt + 1) * (1 / (clk/(prescaler_value + 1) ) )
+    * (1 / freq) = (cnt + 1) * (1 / (clk/(prescaler_value + 1) ) )
     */
 
     TIM_SetCounter(hwtimer_dev->periph, 0);
@@ -197,15 +195,14 @@ static rt_err_t ch32f1_hwtimer_control(struct rt_hwtimer_device *device, rt_uint
         rt_uint16_t prescaler_value = 0;
 
         /*
-        *set interrupt callback one or each time need total time =
-        *  (cnt + 1) * (1 / (clk/(prescaler_value + 1) ) )
+        * (1 / freq) = (cnt + 1) * (1 / (clk/(prescaler_value + 1) ) )
         */
         if (arg != RT_NULL)
         {
 
             freq = *((rt_uint32_t *)arg);
 
-            clk = ch32f1_hwtimer_clock_get(hwtimer_dev->periph);
+            clk = ch32f1_tim_clock_get(hwtimer_dev->periph);
 
             prescaler_value = (rt_uint16_t)(clk / freq) - 1;
 
@@ -369,4 +366,3 @@ void TIM4_IRQHandler(void)
 #endif
 
 #endif /* BSP_USING_HWTIMER */
-
diff --git a/bsp/wch/arm/ch32f103c8-core/board/board.c b/bsp/wch/arm/ch32f103c8-core/board/board.c
index fe6b3df8da0e5569a077fa5ecc4b222e871a49fa..e335f9daa3cc963cad93a2b14eaf6a1def9b6626 100644
--- a/bsp/wch/arm/ch32f103c8-core/board/board.c
+++ b/bsp/wch/arm/ch32f103c8-core/board/board.c
@@ -200,7 +200,7 @@ void ch32f1_i2c_config(I2C_TypeDef *i2cx)
     }
 }
 
-void ch32f1_hwtimer_clock_init(TIM_TypeDef *timx)
+void ch32f1_tim_clock_init(TIM_TypeDef *timx)
 {
     if (timx == TIM1)
     {
@@ -223,7 +223,7 @@ void ch32f1_hwtimer_clock_init(TIM_TypeDef *timx)
     }
 }
 
-rt_uint32_t ch32f1_hwtimer_clock_get(TIM_TypeDef *timx)
+rt_uint32_t ch32f1_tim_clock_get(TIM_TypeDef *timx)
 {
     RCC_ClocksTypeDef RCC_Clocks;
 
diff --git a/bsp/wch/arm/ch32f103c8-core/board/board.h b/bsp/wch/arm/ch32f103c8-core/board/board.h
index 8bf4b819e4958a151f721adfb7ba6475a02a5b58..dd9b6c1df2a2e854f3b4cc47f48ec236562fd1a3 100644
--- a/bsp/wch/arm/ch32f103c8-core/board/board.h
+++ b/bsp/wch/arm/ch32f103c8-core/board/board.h
@@ -50,8 +50,8 @@ void ch32f1_spi_clock_and_io_init(SPI_TypeDef* spix);
 rt_uint32_t ch32f1_spi_clock_get(SPI_TypeDef* spix);
 void ch32f1_i2c_clock_and_io_init(I2C_TypeDef* i2cx);
 void ch32f1_i2c_config(I2C_TypeDef* i2cx);
-void ch32f1_hwtimer_clock_init(TIM_TypeDef *timx);
-rt_uint32_t ch32f1_hwtimer_clock_get(TIM_TypeDef *timx);
+void ch32f1_tim_clock_init(TIM_TypeDef *timx);
+rt_uint32_t ch32f1_tim_clock_get(TIM_TypeDef *timx);
 struct rt_hwtimer_info* ch32f1_hwtimer_info_config_get(TIM_TypeDef *timx);