diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c
index 074d0be182982e6d38fa9232553111b41398155c..12a0239070e7afa0dcf312edbe7b172fc362d406 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.h
index 1d700569e0535a57cd670f49f96a919abe20623f..993c53f61b20720d57a0c3e729a1e9019fcea8c8 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_adc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.c
index 5bd749f90635ab5816d285eb31e5c0f27f0753a8..2b02447d86d24dec6af6db44487edc622561e9ad 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.h
index 4edfcb6b41e7e5db21d96bc8a255e21ee026452a..a38b22be4da0a0b58bf55efa54e79b4c72d2b421 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_can.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.c
index 53414aabbc3a5a8084826aeed21a2d3ea4bb5f09..80fdacf14d6eed04705f9107c6ca6efde71c071f 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.h
index d626fe724f3655622fc26822ebea14de19072195..68bb4407a2eb8ea91e3c1bfa98b47baa6f8c4fd6 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_dac.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.c
index 4495a0c2b1c0c8c272555f96b68cee1d0573c315..32b37fd50681e5821d767ce468a010d7eb820853 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.h
index 2912d2dd138aab9451c40439e790de98563b0d27..3b866fc497c6c204cf1351b27e25e5e68edd775b 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_gpio.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.c
index 4c514c4c712546256ed02b8e8e971e7051b498f0..38432c1083dcafd3ad852e908a4da3632e90f496 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -144,8 +144,15 @@ static void ch32_hwtimer_init(struct rt_hwtimer_device *timer, rt_uint32_t state
         tim = (TIM_HandleTypeDef *)timer->parent.user_data;
         tim_device = (struct ch32_hwtimer *)timer;
 
+#if defined (SOC_RISCV_SERIES_CH32V2)
+        if(tim->instance == TIM1)
+#elif defined(SOC_RISCV_SERIES_CH32V3)
         if(tim->instance == TIM1 || tim->instance == TIM8 ||
                 tim->instance == TIM9 || tim->instance == TIM10)
+#else
+#error " unsupported CH32 series! "
+        if(RT_NULL)
+#endif
         {
             RCC_APB2PeriphClockCmd(tim->rcc, ENABLE);
             prescaler_value = (RCC_ClockStruct.PCLK2_Frequency * pclk2_doubler / 10000) - 1;
@@ -168,13 +175,13 @@ static void ch32_hwtimer_init(struct rt_hwtimer_device *timer, rt_uint32_t state
         {
             tim->init.TIM_CounterMode   = TIM_CounterMode_Down;
         }
-
+#if defined (SOC_RISCV_SERIES_CH32V3)
         /* TIM6 and TIM7 only support counter up mode */
         if(tim->instance == TIM6 || tim->instance == TIM7)
         {
             tim->init.TIM_CounterMode = TIM_CounterMode_Up;
         }
-
+#endif
         TIM_TimeBaseInit(tim->instance, &tim->init);
 
         NVIC_InitStruct.NVIC_IRQChannel = tim_device->irqn;
@@ -266,8 +273,15 @@ static rt_err_t ch32_hwtimer_control(struct rt_hwtimer_device *timer, rt_uint32_
         ch32_get_pclk_doubler(&pclk1_doubler, &pclk2_doubler);
         RCC_GetClocksFreq(&RCC_ClockStruct);
 
+#if defined (SOC_RISCV_SERIES_CH32V2)
+        if(tim->instance == TIM1)
+#elif defined(SOC_RISCV_SERIES_CH32V3)
         if(tim->instance == TIM1 || tim->instance == TIM8 ||
                 tim->instance == TIM9 || tim->instance == TIM10)
+#else
+#error " unsupported CH32 series! "
+        if(RT_NULL)
+#endif
         {
             val = RCC_ClockStruct.PCLK2_Frequency * pclk2_doubler / freq;
         }
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.h
index 6949ff0e5046ca740a7dc181d62c11a494d3ab0c..10ed38374649d0d7cf575810b139b49a602469e8 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_hwtimer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -12,8 +12,12 @@
 #define __DRV_HWTIMER_H__
 
 #include <rtthread.h>
-
+#if defined(SOC_RISCV_SERIES_CH32V3)
 #include "ch32v30x_tim.h"
+#endif
+#if defined(SOC_RISCV_SERIES_CH32V2)
+#include "ch32v20x_tim.h"
+#endif
 
 #ifdef BSP_USING_HWTIMER
 
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_iwdt.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_iwdt.c
index 53d350dbcae340e9a4641d6e8b9d4e7ed563ed8f..a74a37d0cb2af197ef1b55d59d7e0430702ec896 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_iwdt.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_iwdt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_log.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_log.h
index e1b61708cc062d0290aeffaf73501b12851b979b..2d44d4e90149ecfef1e1d41df9cb9f6ebb2fba75 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_log.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_log.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.c
index 2f8274785cccaa1892659f472de2455262a1984a..d58377ec8ac75934a78ff613277d7902fa61bfba 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.h
index 3b7f7c1c11c7838c086ccd4a13bf59e7c67c27b2..086201cc476fede31338cef6c35b8d23f97761b8 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -13,7 +13,12 @@
 
 #include <rtthread.h>
 #ifdef BSP_USING_PWM
+#if defined(SOC_RISCV_SERIES_CH32V3)
 #include "ch32v30x_tim.h"
+#endif
+#if defined(SOC_RISCV_SERIES_CH32V2)
+#include "ch32v20x_tim.h"
+#endif
 #include <drivers/rt_drv_pwm.h>
 #include <drivers/hwtimer.h>
 #include <board.h>
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.c
index 5624792ec3f465fc7fad5447009bb6e44c06b427..e3a5d565398aecebb1583ed46dea11eba11a6294 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.h
index 6ae852a7bacaae2bc021bcda89ab2a83fdbc649b..053a9251fdb7cbccdb507a9c8574c002cb2afee6 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_rtc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c
index 47dd429b126f6b979a4e80b35102b1fa96db5ff4..ae460ccd2eee3dcb23a4a9279a2d9c6438167728 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h
index e775c7ca0a18b55dd628cade839a2be33b80fac2..1f3170cc4c217fca48841262f47540f5e6c92e07 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_i2c.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.c
index 3db73dbb06d938d3599f45eef6bae6c4430c7de3..eb123a468637d54295f061b7937c73a48308fb7c 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.h
index 3e38f5b988176d8d35e844c2a977efec04d45edf..4451952dfc68bdab92553f7101ecff62fc768977 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_soft_spi.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.c
index 7b0778f60265ace0299fb7d90729ba62d929a150..d2a48983a239d525ef3e8f80278531efff2a0d13 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.h
index cafb0ae40a06b3505dc781f9466ef37354c6b13e..42ab229e61a51ac52fabd4e583b1a28bcbf85d04 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_spi.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.c b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.c
index dd79dda1a3ab1f11ec9c46908447f1db7a4fa847..0d950f7dd30005aea86941462264540faae599d6 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.c
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.h b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.h
index b002887a194cfdec237c1855a3d7d285fbab7eba..97d2e31626c9fb35cebcfe0ab27a40ab9f01ca67 100644
--- a/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.h
+++ b/bsp/wch/risc-v/Libraries/ch32_drivers/drv_usart.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_eth.c b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_eth.c
index 53c3411372d9af5cab79c85cbdb1ccfd768d570c..602d3c9b30fcfa839bc727dec61fe901a628f3c1 100644
--- a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_eth.c
+++ b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_eth.c
@@ -1432,7 +1432,7 @@ ITStatus ETH_GetDMAITStatus(uint32_t ETH_DMA_IT)
 /*********************************************************************
  * @fn      ETH_DMAClearITPendingBit
  *
- * @brief   Clears the ETHERNET�s DMA IT pending bit.
+ * @brief   Clears the ETHERNET's DMA IT pending bit.
  *
  * @param   ETH_DMA_IT - specifies the interrupt pending bit to clear.
  *            ETH_DMA_IT_NIS - Normal interrupt summary
diff --git a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_fsmc.c b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_fsmc.c
index 6da3b53cb14a3369e036218956a5252e6946e4d4..4f7580fddcb154132988f35d55eeb511f2f55a9e 100644
--- a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_fsmc.c
+++ b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_fsmc.c
@@ -249,7 +249,7 @@ void FSMC_NANDStructInit(FSMC_NANDInitTypeDef *FSMC_NANDInitStruct)
  *            FSMC_Bank1_NORSRAM2 - FSMC Bank1 NOR/SRAM2
  *            FSMC_Bank1_NORSRAM3 - FSMC Bank1 NOR/SRAM3
  *            FSMC_Bank1_NORSRAM4 - FSMC Bank1 NOR/SRAM4
- *          NewState��ENABLE or DISABLE.
+ *          NewState£:ENABLE or DISABLE.
  *
  * @return  none
  */
diff --git a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_rng.c b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_rng.c
index bd68c07ce83ed106a496a7d6c119f1e83892211c..766a75a2c4604041962251276dee552fcde980f2 100644
--- a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_rng.c
+++ b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_rng.c
@@ -117,7 +117,7 @@ void RNG_ClearFlag(uint8_t RNG_FLAG)
  *            RNG_IT_CEI - Clock Error Interrupt.
  *            RNG_IT_SEI - Seed Error Interrupt.
  *
- * @return  bitstatus��SET or RESET.
+ * @return  bitstatus£:SET or RESET.
  */
 ITStatus RNG_GetITStatus(uint8_t RNG_IT)
 {
diff --git a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_sdio.c b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_sdio.c
index 7241dd1d0cabea27f49cb53eba5b739080c6c157..0fbed767c820f6d07271b706708199ede02d48c6 100644
--- a/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_sdio.c
+++ b/bsp/wch/risc-v/Libraries/ch32v30x_libraries/ch32v307_hal/source/ch32v30x_sdio.c
@@ -625,7 +625,7 @@ void SDIO_ClearFlag(uint32_t SDIO_FLAG)
  *            SDIO_IT_SDIOIT - SD I/O interrupt received interrupt
  *            SDIO_IT_CEATAEND - CE-ATA command completion signal received for CMD61 interrupt
  *
- * @return  ITStatus��SET or RESET
+ * @return  ITStatus£:SET or RESET
  */
 ITStatus SDIO_GetITStatus(uint32_t SDIO_IT)
 {
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.c
index 94c2116d98646f23984bdceb7ea98747e7e77d96..f84c9ff0dbf70ca4a6f83dcd653794da2f82eb55 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.h
index 2b6af1a5d596df826947bcaa69b75d045daf92b3..6bcd134dde6793c1e1e58aa910e0f8a055c8daee 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_gpio.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.c
index 9f012640062c4d17e6a4f65b2b2e7eb0f254c9dd..1ecd1fa44b7cc311d7150dee7eea28f03a9b002c 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.h
index be3c6520746fa153ee76ac6109fa7d6745dbdf90..45d40b4cfdff0bc594ec5c2848246a0326a6f1a7 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pfic.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.c
index f9961a495ee12d53dba86dec7de2ec60d4b5d3c6..854fd0d33662becd21410a493fb5414baccedee2 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.h
index cacf019be6d5436795569cee6671e228f32b673e..b151f719c864a051d728ed1c7291566866ed6add 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_pwm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.c
index 6ed44f503e4096bc49325243ac744576285f119f..9fb8a30d3d5ff0e2c799832543959704e9f0a982 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.h
index 2d04df692c9ab264f4f9443bfb59b89897650320..b98e714edf31623c190c6b5f2f57907d187d5520 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_spi.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.c
index d9696b6f9ea02ebe3b569fa862e5546c73a8dd7c..eefb2ad643f5b309b032a11fac212a0b40bdcd8b 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.h
index 9405f3c0620d26ceeb27255933169657ed148ab5..1aa8bb2ac04c5556408aa6efaed44b745586d7ad 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_sys.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.c
index a420e53b4d7671c8bc1ebe86ff12375d6d08b622..b466a10ed046004c350df7009dfd50085085840c 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.h
index 63a5ebef139609c51e7cef699cbd3d914e88285e..b42307e888399816a4f30a6f171f4a356010c6c7 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_timer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.c
index a2c1aec551b2e6cfde1a0ba5d3ccf59e27ffd9cb..496c72f53464cbda22158c064a5bab6641b16c45 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.h
index aaec4e0d73b49225ea4f94c179bbc319aa0dc790..4fb525afa472731ee05d38389d33b4796a0b926f 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_uart.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbd.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbd.c
index 512c19061682dd8d2e62042a89cbb74387226d41..ecd7f3fb680f65119ae0f570cd78265771d50186 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbd.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbhs.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbhs.h
index 045ef75eba54aa99111e7ffbdac4474d51eebe00..d42a9e4d29220aed38ab0882891401fffd5653c6 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbhs.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_usbhs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_wdt.c b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_wdt.c
index 200f71b0616376e2bd63eaa38eb0ffda15c2c665..86e419b613fe08741902f846e92a9d3f6bebd49c 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_wdt.c
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/ch56x_wdt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/isr_sp.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/isr_sp.h
index 54c33ed942ed4bdb2a1bcbe8c70416b7d6e32dc6..f0ad37e7c2cdd128e1176ca140bf349e0ddc7747 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/isr_sp.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/isr_sp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/Libraries/ch56x_drivers/soc.h b/bsp/wch/risc-v/Libraries/ch56x_drivers/soc.h
index e5fd9d7853d2975c3a6da9098f7e1211d0ac949d..c86f95d47fe8db8afe7aab3242203fc41d7cf2aa 100644
--- a/bsp/wch/risc-v/Libraries/ch56x_drivers/soc.h
+++ b/bsp/wch/risc-v/Libraries/ch56x_drivers/soc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/ch32v208w-r0/.config b/bsp/wch/risc-v/ch32v208w-r0/.config
index cb9de74b50645ccb47fdf2f5ae006bc784e236ce..cf3d4a1360752977d4d18ab6ef5cc5fc4a6c35e5 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/.config
+++ b/bsp/wch/risc-v/ch32v208w-r0/.config
@@ -47,6 +47,7 @@ CONFIG_RT_USING_MESSAGEQUEUE=y
 #
 # Memory Management
 #
+CONFIG_RT_PAGE_MAX_ORDER=11
 # CONFIG_RT_USING_MEMPOOL is not set
 CONFIG_RT_USING_SMALL_MEM=y
 # CONFIG_RT_USING_SLAB is not set
@@ -115,17 +116,20 @@ CONFIG_RT_USING_SERIAL_V1=y
 # CONFIG_RT_SERIAL_USING_DMA is not set
 CONFIG_RT_SERIAL_RB_BUFSZ=64
 # CONFIG_RT_USING_CAN is not set
-# CONFIG_RT_USING_HWTIMER is not set
+CONFIG_RT_USING_HWTIMER=y
 # CONFIG_RT_USING_CPUTIME is not set
-# CONFIG_RT_USING_I2C is not set
+CONFIG_RT_USING_I2C=y
+# CONFIG_RT_I2C_DEBUG is not set
+CONFIG_RT_USING_I2C_BITOPS=y
+# CONFIG_RT_I2C_BITOPS_DEBUG is not set
 # CONFIG_RT_USING_PHY is not set
 CONFIG_RT_USING_PIN=y
-# CONFIG_RT_USING_ADC is not set
+CONFIG_RT_USING_ADC=y
 # CONFIG_RT_USING_DAC is not set
 # CONFIG_RT_USING_NULL is not set
 # CONFIG_RT_USING_ZERO is not set
 # CONFIG_RT_USING_RANDOM is not set
-# CONFIG_RT_USING_PWM is not set
+CONFIG_RT_USING_PWM=y
 # CONFIG_RT_USING_MTD_NOR is not set
 # CONFIG_RT_USING_MTD_NAND is not set
 # CONFIG_RT_USING_PM is not set
@@ -177,7 +181,8 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 #
 # Socket is in the 'Network' category
 #
-# CONFIG_RT_USING_CPLUSPLUS is not set
+CONFIG_RT_USING_CPLUSPLUS=y
+# CONFIG_RT_USING_CPLUSPLUS11 is not set
 
 #
 # Network
@@ -194,6 +199,7 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_RT_USING_ULOG is not set
 # CONFIG_RT_USING_UTEST is not set
 # CONFIG_RT_USING_VAR_EXPORT is not set
+# CONFIG_RT_USING_ADT is not set
 # CONFIG_RT_USING_RT_LINK is not set
 # CONFIG_RT_USING_VBUS is not set
 
@@ -739,7 +745,20 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 #
 # Arduino libraries
 #
-# CONFIG_PKG_USING_RTDUINO is not set
+CONFIG_PKG_USING_RTDUINO=y
+CONFIG_PKG_RTDUINO_PATH="/packages/arduino/RTduino"
+# CONFIG_RTDUINO_NO_SETUP_LOOP is not set
+CONFIG_RTDUINO_THREAD_SIZE=1536
+CONFIG_RTDUINO_THREAD_PRIO=30
+# CONFIG_RTDUINO_TINY_MODE is not set
+# CONFIG_RTDUINO_SUPPORT_FLOAT_STRING is not set
+# CONFIG_RTDUINO_USING_WIRE is not set
+# CONFIG_RTDUINO_USING_SPI is not set
+# CONFIG_RTDUINO_USING_SERVO is not set
+# CONFIG_RTDUINO_USING_USBSERIAL is not set
+# CONFIG_RTDUINO_USING_SHELL_CMD is not set
+CONFIG_PKG_USING_RTDUINO_LATEST_VERSION=y
+CONFIG_PKG_RTDUINO_VER="latest"
 
 #
 # Projects
@@ -948,6 +967,11 @@ CONFIG_SOC_RISCV_SERIES_CH32V2=y
 #
 CONFIG_SOC_CH32V208WBU6=y
 
+#
+# Onboard Peripheral Drivers
+#
+# CONFIG_BSP_USING_ARDUINO is not set
+
 #
 # On-chip Peripheral Drivers
 #
@@ -961,19 +985,45 @@ CONFIG_BSP_USING_UART1=y
 # CONFIG_BSP_USING_UART6 is not set
 # CONFIG_BSP_USING_UART7 is not set
 # CONFIG_BSP_USING_UART8 is not set
-# CONFIG_BSP_USING_ADC is not set
+CONFIG_BSP_USING_ADC=y
+CONFIG_BSP_USING_ADC1=y
+# CONFIG_BSP_USING_ADC2 is not set
+# CONFIG_ADC_CHANNEL_16 is not set
+# CONFIG_ADC_CHANNEL_17 is not set
 # CONFIG_BSP_USING_DAC is not set
-# CONFIG_BSP_USING_SOFT_I2C is not set
+CONFIG_BSP_USING_SOFT_I2C=y
+CONFIG_BSP_USING_I2C1=y
+
+#
+# Notice: PC7 --> 39; PC6 --> 38
+#
+CONFIG_BSP_I2C1_SCL_PIN=38
+CONFIG_BSP_I2C1_SDA_PIN=39
+# CONFIG_BSP_USING_I2C2 is not set
 # CONFIG_BSP_USING_SPI is not set
 # CONFIG_BSP_USING_RTC is not set
 CONFIG_LSI_VALUE=40000
 # CONFIG_BSP_USING_IWDT is not set
 # CONFIG_BSP_USING_CAN is not set
-# CONFIG_BSP_USING_TIM is not set
-
-#
-# Onboard Peripheral Drivers
-#
+CONFIG_BSP_USING_TIM=y
+CONFIG_BSP_USING_HWTIMER=y
+# CONFIG_BSP_USING_PWM is not set
+CONFIG_BSP_USING_TIM1=y
+CONFIG_BSP_USING_TIM1_HWTIMER=y
+# CONFIG_BSP_USING_TIM1_PWM is not set
+# CONFIG_BSP_USING_TIM2 is not set
+CONFIG_BSP_USING_TIM3=y
+CONFIG_BSP_USING_TIM3_HWTIMER=y
+# CONFIG_BSP_USING_TIM3_PWM is not set
+CONFIG_BSP_USING_TIM4=y
+CONFIG_BSP_USING_TIM4_HWTIMER=y
+# CONFIG_BSP_USING_TIM4_PWM is not set
+# CONFIG_BSP_USING_TIM5 is not set
+# CONFIG_BSP_USING_TIM6 is not set
+# CONFIG_BSP_USING_TIM7 is not set
+# CONFIG_BSP_USING_TIM8 is not set
+# CONFIG_BSP_USING_TIM9 is not set
+# CONFIG_BSP_USING_TIM10 is not set
 
 #
 # Board extended module Drivers
diff --git a/bsp/wch/risc-v/ch32v208w-r0/SConstruct b/bsp/wch/risc-v/ch32v208w-r0/SConstruct
index 1c21f19f0afe6e6c94a9ee767cf67c3ad048257e..cc619ab0c2d070a07c333a28b432e8ebb70e8fac 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/SConstruct
+++ b/bsp/wch/risc-v/ch32v208w-r0/SConstruct
@@ -24,6 +24,7 @@ env = Environment(tools = ['mingw'],
     AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
     CC = rtconfig.CC, CFLAGS = rtconfig.CFLAGS,
     AR = rtconfig.AR, ARFLAGS = '-rc',
+    CXX = rtconfig.CXX, 
     LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
 env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/SConscript b/bsp/wch/risc-v/ch32v208w-r0/applications/SConscript
index 9bb9abae897a67a82e373e0aac77bf847dafe1a6..e1c7fa5996235029e77115334bc7f41d19c00f2f 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/applications/SConscript
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/SConscript
@@ -1,9 +1,12 @@
 from building import *
 import os
 
-cwd = GetCurrentDir()
-src = Glob('*.c')
+cwd     = GetCurrentDir()
 CPPPATH = [cwd]
+src     = Glob('*.c')
+
+if GetDepend(['PKG_USING_RTDUINO']) and not GetDepend(['RTDUINO_NO_SETUP_LOOP']):
+    src += ['arduino_main.cpp']
 
 group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
 
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_main.cpp b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_main.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b491796946178fd2c0047ef5d81d465068f275cc
--- /dev/null
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_main.cpp
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-08     WangShun     first version
+ */
+
+#include <Arduino.h>
+
+void setup(void)
+ {
+     /* put your setup code here, to run once: */
+    pinMode(8, OUTPUT);
+    Serial.begin();
+    Serial.println("Hello Arduino!");
+ }
+
+void loop(void)
+{
+    /* put your main code here, to run repeatedly: */
+    digitalWrite(8, HIGH);
+    delay(500);
+    digitalWrite(8, LOW);
+    delay(500);
+}
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/README.md b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b843afe7f582f5790059c54d3b5eb01ccc3739f6
--- /dev/null
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/README.md
@@ -0,0 +1,63 @@
+# CH32V208W-R0 开发板的Arduino生态兼容说明
+
+## 1 RTduino - RT-Thread的Arduino生态兼容层
+
+CH32V208W-R0开发板已经完整适配了[RTduino软件包](https://github.com/RTduino/RTduino)，即RT-Thread的Arduino生态兼容层。用户可以按照Arduino的编程习惯来操作该BSP，并且可以使用大量Arduino社区丰富的库，是对RT-Thread生态的极大增强。更多信息，请参见[RTduino软件包说明文档](https://github.com/RTduino/RTduino)。
+
+### 1.1 如何开启针对本BSP的Arduino生态兼容层
+
+Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT-Thread Settings：
+
+```Kconfig
+Hardware Drivers Config --->
+    Onboard Peripheral Drivers --->
+        [*] Compatible with Arduino Ecosystem (RTduino)
+```
+
+## 2 Arduino引脚排布
+
+更多引脚布局相关信息参见 [pins_arduino.c](pins_arduino.c) 和 [pins_arduino.h](pins_arduino.h)。
+
+![ch32v208w-pinout](ch32v208w-pinout.png)
+| Arduino引脚编号  | STM32引脚编号 | 5V容忍 | 备注  |
+| ------------------- | --------- | ---- | ------------------------------------------------------------------------- |
+| 0 (D0) | PA9 | 是 | Serial2-TX，默认被RT-Thread的UART设备框架uart1接管 |
+| 1 (D1) | PB0 | 是 | Serial2-RX，默认被RT-Thread的UART设备框架uart1接管 |
+| 2 (D2) | PB4 | 是 |  |
+| 3 (D3) | PB6 | 是 | PWM4-CH1，默认被RT-Thread的PWM设备框架pwm4接管 |
+| 4 (D4) | PB7 | 是 | PWM4-CH2，默认被RT-Thread的PWM设备框架pwm4接管 |
+| 5 (D5) | PB8 | 是 | PWM4-CH3，默认被RT-Thread的PWM设备框架pwm4接管 |
+| 6 (D6) | PB9 | 是 | PWM4-CH4，默认被RT-Thread的PWM设备框架pwm4接管 |
+| 7 (D7) | PA8 | 否 | PWM1-CH1，默认被RT-Thread的PWM设备框架pwm1接管 |
+| 8 (D8) | PB1 | 否 | PWM3-CH4，默认被RT-Thread的PWM设备框架pwm3接管 |
+| 9 (D9) | PB0 | 否 | PWM3-CH3，默认被RT-Thread的PWM设备框架pwm3接管 |
+| 10 (D10) | PB12 | 是 |  |
+| 11 (D11) | PB15 | 是 |  |
+| 12 (D12) | PB14 | 是 |  |
+| 13 (D13) | PB13 | 是 |  |
+| 14 (D14) | PB11 | 是 | I2C1-SDA，默认被RT-Thread的I2C设备框架i2c1接管 |
+| 15 (D15) | PB10 | 是 | I2C1-SCL，默认被RT-Thread的I2C设备框架i2c1接管 |
+| 16 (A0) | PA0 | 否 | ADC1-CH0，默认被RT-Thread的ADC设备框架adc1接管 |
+| 17 (A1) | PA1 | 否 | ADC1-CH1，默认被RT-Thread的ADC设备框架adc1接管 |
+| 18 (A2) | PA2 | 否 | ADC1-CH2，默认被RT-Thread的ADC设备框架adc1接管 |
+| 19 (A3) | PA3 | 否 | ADC1-CH3，默认被RT-Thread的ADC设备框架adc1接管 |
+| 20 (A4) | PA4 | 否 | ADC1-CH4，默认被RT-Thread的ADC设备框架adc1接管 |
+| 21 (A5) | PA5 | 否 | ADC1-CH5，默认被RT-Thread的ADC设备框架adc1接管 |
+
+> 注意：
+>
+> 1. 驱动舵机和analogWrite函数要选择不同定时器发生的PWM信号引脚，由于硬件定时器4个通道需要保持相同的频率，如果采用相同的定时器发生的PWM分别驱动舵机和analogWrite，可能会导致舵机失效
+
+## 3 通信
+
+### 3.1 I2C总线
+
+CH32V208W-R0  开发板的I2C总线是板上丝印的 `SCL/D15` 和 `SDA/D14` 引脚，这两个引脚默认是被RT-Thread I2C设备框架接管的，直接引用`#include <Wire.h>`（Arduino官方I2C头文件）即可使用。
+
+### 3.2 SPI总线
+
+目前本BSP不支持使用Arduino的SPI功能。
+
+### 3.3 串口
+
+本BSP通过 `Serial.` 方法调用 `uart1` 串口设备。详见[例程](https://github.com/RTduino/RTduino/blob/master/examples/Basic/helloworld.cpp)。
\ No newline at end of file
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/Sconscript b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/Sconscript
new file mode 100644
index 0000000000000000000000000000000000000000..25399290275c4dd5e207b73316583b1ff227c5cc
--- /dev/null
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/Sconscript
@@ -0,0 +1,9 @@
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp')
+inc = [cwd]
+
+group = DefineGroup('RTduino', src, depend = ['PKG_USING_RTDUINO'], CPPPATH = inc)
+
+Return('group')
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/ch32v208w-pinout.png b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/ch32v208w-pinout.png
new file mode 100644
index 0000000000000000000000000000000000000000..fc0a5f46d8a7e5df342fe2bf0a88f7eeca319d57
Binary files /dev/null and b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/ch32v208w-pinout.png differ
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/pins_arduino.c b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/pins_arduino.c
new file mode 100644
index 0000000000000000000000000000000000000000..6a7d0c248654cace04295fb761c88da0d67a6580
--- /dev/null
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/pins_arduino.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-08     WangShun     first version
+ */
+
+#include <Arduino.h>
+#include <board.h>
+#include "pins_arduino.h"
+
+/*
+ * {Arduino Pin, RT-Thread Pin [, Device Name, Channel]}
+ * [] means optional
+ * Digital pins must NOT give the device name and channel.
+ * Analog pins MUST give the device name and channel(ADC, PWM or DAC).
+ * Arduino Pin must keep in sequence.
+ */
+const pin_map_t pin_map_table[]=
+{
+    {D0, GET_PIN(A,9),  "uart1"},       /* Serial1-TX */
+    {D1, GET_PIN(A,10), "uart1"},       /* Serial1-RX */
+    {D2, GET_PIN(B,4)},
+    {D3, GET_PIN(B,6), "pwm4", 1},      /* PWM */
+    {D4, GET_PIN(B,7), "pwm4", 2},      /* PWM */
+    {D5, GET_PIN(B,8), "pwm4", 3},      /* PWM */
+    {D6, GET_PIN(B,9), "pwm4", 4},      /* PWM */
+    {D7, GET_PIN(A,8), "pwm1", 1},      /* PWM */
+    {D8, GET_PIN(B,1), "pwm3", 4},      /* PWM */
+    {D9, GET_PIN(B,0), "pwm3", 3},      /* PWM */
+    {D10, GET_PIN(B,12)},
+    {D11, GET_PIN(B,15)},
+    {D12, GET_PIN(B,14)},
+    {D13, GET_PIN(B,13)},
+    {D14, GET_PIN(B,11), "i2c1"},       /* I2C-SDA (Wire) */
+    {D15, GET_PIN(B,10), "i2c1"},       /* I2C-SCL (Wire) */
+    {A0, GET_PIN(A,0), "adc1", 0},      /* ADC */
+    {A1, GET_PIN(A,1), "adc1", 1},      /* ADC */
+    {A2, GET_PIN(A,2), "adc1", 2},      /* ADC */
+    {A3, GET_PIN(A,3), "adc1", 3},      /* ADC */
+    {A4, GET_PIN(A,4), "adc1", 4},      /* ADC */
+    {A5, GET_PIN(A,5), "adc1", 5},      /* ADC */
+};
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/pins_arduino.h b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/pins_arduino.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb26bbb40cd98dd61f75b5371ec1bd37513a18e0
--- /dev/null
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/arduino_pinout/pins_arduino.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-08     WangShun     first version
+ */
+
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+/* pins alias. Must keep in sequence */
+#define D0        (0)
+#define D1        (1)
+#define D2        (2)
+#define D3        (3)
+#define D4        (4)
+#define D5        (5)
+#define D6        (6)
+#define D7        (7)
+#define D8        (8)
+#define D9        (9)
+#define D10       (10)
+#define D11       (11)
+#define D12       (12)
+#define D13       (13)
+#define D14       (14)
+#define D15       (15)
+#define A0        (16)
+#define A1        (17)
+#define A2        (18)
+#define A3        (19)
+#define A4        (20)
+#define A5        (21)
+
+#define F_CPU          144000000L  /* CPU:144MHz */
+
+/* Serial1 : PA9-TX  PB0-RX */
+#define RTDUINO_SERIAL2_DEVICE_NAME      "uart1"
+
+#endif /* Pins_Arduino_h */
diff --git a/bsp/wch/risc-v/ch32v208w-r0/applications/main.c b/bsp/wch/risc-v/ch32v208w-r0/applications/main.c
index 3246340a93de6c85344b60b9fa04572b3038d476..0b6bd980f64578339dc5dc91da1c63ab34b72462 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/applications/main.c
+++ b/bsp/wch/risc-v/ch32v208w-r0/applications/main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/ch32v208w-r0/board/Kconfig b/bsp/wch/risc-v/ch32v208w-r0/board/Kconfig
index 59a18a174cf91ccbd3514d98b4358b693201189c..fd74edd2e985dff2d152d10bd9c4037f65ec648f 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/board/Kconfig
+++ b/bsp/wch/risc-v/ch32v208w-r0/board/Kconfig
@@ -9,6 +9,33 @@ config SOC_CH32V208WBU6
 
 menu "Onboard Peripheral Drivers"
 
+    config BSP_USING_ARDUINO
+        bool "Compatible with Arduino Ecosystem (RTduino)"
+        select PKG_USING_RTDUINO
+        select BSP_USING_GPIO
+        select BSP_USING_ADC
+        select BSP_USING_ADC1
+        select BSP_USING_TIM
+        select BSP_USING_PWM
+        select BSP_USING_TIM1
+        select BSP_USING_TIM1_PWM
+        select BSP_USING_TIM1_PWM_CH1
+        select BSP_USING_TIM3
+        select BSP_USING_TIM3_PWM
+        select BSP_USING_TIM3_PWM_CH3
+        select BSP_USING_TIM3_PWM_CH4
+        select BSP_USING_TIM4
+        select BSP_USING_TIM4_PWM
+        select BSP_USING_TIM4_PWM_CH1
+        select BSP_USING_TIM4_PWM_CH2
+        select BSP_USING_TIM4_PWM_CH3
+        select BSP_USING_TIM4_PWM_CH4
+        select BSP_USING_SOFT_I2C
+        select BSP_USING_I2C1
+        imply RTDUINO_USING_SERVO
+        imply RTDUINO_USING_WIRE
+        default n
+
 endmenu
 
 menu "On-chip Peripheral Drivers"
diff --git a/bsp/wch/risc-v/ch32v208w-r0/board/board.c b/bsp/wch/risc-v/ch32v208w-r0/board/board.c
index 197c3c66ad7a054c846a3af360c6abb4fe3ec5f7..03f33e6c4bfbfb01597db097f468efae4a7b0634 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/board/board.c
+++ b/bsp/wch/risc-v/ch32v208w-r0/board/board.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/wch/risc-v/ch32v208w-r0/board/board.h b/bsp/wch/risc-v/ch32v208w-r0/board/board.h
index 9086e24c4e8f3877fe5d11f2da0d69cf340c7e57..7449e15d62357a993bd65cc9352734f521b34e12 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/board/board.h
+++ b/bsp/wch/risc-v/ch32v208w-r0/board/board.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2022, RT-Thread Development Team
+ * Copyright (c) 2006-2023, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -12,7 +12,10 @@
 #ifndef __BOARD_H__
 #define __BOARD_H__
 
+#include <rtthread.h>
 #include "ch32v20x.h"
+#include "drv_gpio.h"
+#include "drv_pwm.h"
 
 #define ch32v20x_PIN_NUMBERS   64
 /* board configuration */
diff --git a/bsp/wch/risc-v/ch32v208w-r0/board/linker_scripts/link.lds b/bsp/wch/risc-v/ch32v208w-r0/board/linker_scripts/link.lds
index cc60a8caaede0965970c54a1c73e00f50d9f0cd6..6c966a5aaee88507a075f5c53ab86ee185f1e699 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/board/linker_scripts/link.lds
+++ b/bsp/wch/risc-v/ch32v208w-r0/board/linker_scripts/link.lds
@@ -66,6 +66,14 @@ SECTIONS
     __rtmsymtab_end = .;
         . = ALIGN(4);
 
+    PROVIDE(__ctors_start__ = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array))
+    PROVIDE(__ctors_end__ = .);
+    . = ALIGN(4);
+
+    _etext = .;
+
     } >FLASH AT>FLASH
 
     .fini :
diff --git a/bsp/wch/risc-v/ch32v208w-r0/rtconfig.h b/bsp/wch/risc-v/ch32v208w-r0/rtconfig.h
index bc7ed5be5c79eb8beb21f185b2c25f0489cbc05f..e0f52dc1bc2d468b623b4cd61b0d9c24a38d283d 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/rtconfig.h
+++ b/bsp/wch/risc-v/ch32v208w-r0/rtconfig.h
@@ -33,6 +33,7 @@
 
 /* Memory Management */
 
+#define RT_PAGE_MAX_ORDER 11
 #define RT_USING_SMALL_MEM
 #define RT_USING_SMALL_MEM_AS_HEAP
 #define RT_USING_HEAP
@@ -73,7 +74,12 @@
 #define RT_USING_SERIAL
 #define RT_USING_SERIAL_V1
 #define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_HWTIMER
+#define RT_USING_I2C
+#define RT_USING_I2C_BITOPS
 #define RT_USING_PIN
+#define RT_USING_ADC
+#define RT_USING_PWM
 
 /* Using USB */
 
@@ -90,6 +96,7 @@
 
 /* Socket is in the 'Network' category */
 
+#define RT_USING_CPLUSPLUS
 
 /* Network */
 
@@ -184,6 +191,10 @@
 
 /* Arduino libraries */
 
+#define PKG_USING_RTDUINO
+#define RTDUINO_THREAD_SIZE 1536
+#define RTDUINO_THREAD_PRIO 30
+#define PKG_USING_RTDUINO_LATEST_VERSION
 
 /* Projects */
 
@@ -222,14 +233,32 @@
 
 #define SOC_CH32V208WBU6
 
+/* Onboard Peripheral Drivers */
+
+
 /* On-chip Peripheral Drivers */
 
 #define BSP_USING_GPIO
 #define BSP_USING_UART
 #define BSP_USING_UART1
-#define LSI_VALUE 40000
+#define BSP_USING_ADC
+#define BSP_USING_ADC1
+#define BSP_USING_SOFT_I2C
+#define BSP_USING_I2C1
 
-/* Onboard Peripheral Drivers */
+/* Notice: PC7 --> 39; PC6 --> 38 */
+
+#define BSP_I2C1_SCL_PIN 38
+#define BSP_I2C1_SDA_PIN 39
+#define LSI_VALUE 40000
+#define BSP_USING_TIM
+#define BSP_USING_HWTIMER
+#define BSP_USING_TIM1
+#define BSP_USING_TIM1_HWTIMER
+#define BSP_USING_TIM3
+#define BSP_USING_TIM3_HWTIMER
+#define BSP_USING_TIM4
+#define BSP_USING_TIM4_HWTIMER
 
 /* Board extended module Drivers */
 
diff --git a/bsp/wch/risc-v/ch32v208w-r0/rtconfig.py b/bsp/wch/risc-v/ch32v208w-r0/rtconfig.py
index a859931140122a7d96c12230420fff7d815044ca..fee6d63ed17b00f279f1280b20ec11eccfb71740 100644
--- a/bsp/wch/risc-v/ch32v208w-r0/rtconfig.py
+++ b/bsp/wch/risc-v/ch32v208w-r0/rtconfig.py
@@ -18,8 +18,6 @@ else:
 if os.getenv('RTT_EXEC_PATH'):
     EXEC_PATH = os.getenv('RTT_EXEC_PATH')
     
-print(EXEC_PATH)
-
 BUILD = 'debug'
 #BUILD = 'release'