update 1.8

2023-09-06 10:08:11 +08:00
parent b79c6ac80d
commit 64be955461
760 changed files with 42517 additions and 30957 deletions
@@ -0,0 +1,160 @@
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+					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
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+						</toolChain>
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+					<sourceEntries>
+						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="APP"/>
+						<entry excluding="Profile|KEY.c|LED.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="HAL"/>
+						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="LIB"/>
+						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Profile"/>
+						<entry excluding="Startup/startup_ch32v20x_D8.S|Startup/startup_ch32v20x_D6.S|Ld/" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="SRC"/>
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+			<storageModule moduleId="ilg.gnumcueclipse.managedbuild.packs"/>
+		</cconfiguration>
+	</storageModule>
+	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
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+	</storageModule>
+	<storageModule moduleId="scannerConfiguration">
+		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+		<scannerConfigBuildInfo instanceId="ilg.gnumcueclipse.managedbuild.cross.riscv.config.elf.debug.767917625;ilg.gnumcueclipse.managedbuild.cross.riscv.config.elf.debug.767917625.;ilg.gnumcueclipse.managedbuild.cross.riscv.tool.c.compiler.1375371130;ilg.gnumcueclipse.managedbuild.cross.riscv.tool.c.compiler.input.1473381709">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
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+		<scannerConfigBuildInfo instanceId="ilg.gnumcueclipse.managedbuild.cross.riscv.config.elf.release.1008047074;ilg.gnumcueclipse.managedbuild.cross.riscv.config.elf.release.1008047074.;ilg.gnumcueclipse.managedbuild.cross.riscv.tool.c.compiler.1731377187;ilg.gnumcueclipse.managedbuild.cross.riscv.tool.c.compiler.input.2036806839">
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+	</storageModule>
+	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
+	
+</cproject>
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<projectDescription>
+	<name>RF_PHY_Auto</name>
+	<comment/>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+			<triggers>clean,full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+			<triggers>full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.cdt.core.cnature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+	</natures>
+	<linkedResources>
+		<link>
+			<name>HAL</name>
+			<type>2</type>
+			<locationURI>PARENT-1-PROJECT_LOC/HAL</locationURI>
+		</link>
+		<link>
+			<name>LIB</name>
+			<type>2</type>
+			<locationURI>PARENT-1-PROJECT_LOC/LIB</locationURI>
+		</link>
+		<link>
+			<name>SRC</name>
+			<type>2</type>
+			<locationURI>PARENT-2-PROJECT_LOC/SRC</locationURI>
+		</link>
+	</linkedResources>
+	<filteredResources>
+		<filter>
+			<id>1602468250279</id>
+			<name/>
+			<type>22</type>
+			<matcher>
+				<id>org.eclipse.ui.ide.multiFilter</id>
+				<arguments>1.0-name-matches-false-false-*.wvproj</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
+</projectDescription>
@@ -0,0 +1,262 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : main.c
+ * Author             : WCH
+ * Version            : V1.0
+ * Date               : 2020/08/06
+ * Description        :
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+/******************************************************************************/
+/* Header file contains */
+#include "CONFIG.h"
+#include "RF_PHY.h"
+
+/*********************************************************************
+ * GLOBAL TYPEDEFS
+ */
+
+#define RF_AUTO_MODE_EXAM       1
+
+uint8_t taskID;
+uint8_t TX_DATA[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
+
+volatile uint8_t tx_end_flag=0;
+volatile uint8_t rx_end_flag=0;
+
+/*********************************************************************
+ * @fn      RF_Wait_Tx_End
+ *
+ * @brief   手动模式等待发送完成，自动模式等待发送-接收完成，必须在RAM中等待，等待时可以执行用户代码，但需要注意执行的代码必须运行在RAM中，否则影响发送
+ *
+ * @return  none
+ */
+__attribute__((section(".highcode")))
+__attribute__((noinline))
+void RF_Wait_Tx_End()
+{
+    uint32_t i=0;
+    while(!tx_end_flag)
+    {
+        i++;
+        __NOP();
+        __NOP();
+        // 约5ms超时
+        if(i>(SystemCoreClock/1000))
+        {
+            tx_end_flag = TRUE;
+        }
+    }
+}
+
+/*********************************************************************
+ * @fn      RF_Wait_Rx_End
+ *
+ * @brief   自动模式等待应答发送完成，必须在RAM中等待，等待时可以执行用户代码，但需要注意执行的代码必须运行在RAM中，否则影响发送
+ *
+ * @return  none
+ */
+__attribute__((section(".highcode")))
+__attribute__((noinline))
+void RF_Wait_Rx_End()
+{
+    uint32_t i=0;
+    while(!rx_end_flag)
+    {
+        i++;
+        __NOP();
+        __NOP();
+        // 约5ms超时
+        if(i>(SystemCoreClock/1000))
+        {
+            rx_end_flag = TRUE;
+        }
+    }
+}
+
+/*********************************************************************
+ * @fn      RF_2G4StatusCallBack
+ *
+ * @brief   RF status callback 
+ * @Note    Do not call RF receiving or sending APIs in this function directly, 
+ *          setting the event instead
+ *
+ * @param   sta     - State
+ * @param   crc     - CRC verification results
+ * @param   rxBuf   - Data BUF pointer
+ *
+ * @return  none
+ */
+void RF_2G4StatusCallBack(uint8_t sta, uint8_t crc, uint8_t *rxBuf)
+{
+    switch(sta)
+    {
+        case TX_MODE_TX_FINISH:
+        {
+            break;
+        }
+        case TX_MODE_TX_FAIL:
+        {
+            tx_end_flag = TRUE;
+            break;
+        }
+        case TX_MODE_RX_DATA:
+        {
+            tx_end_flag = TRUE;
+            if (crc == 0) {
+                uint8_t i;
+
+                PRINT("tx recv,rssi:%d\n", (int8_t)rxBuf[0]);
+                PRINT("len:%d-", rxBuf[1]);
+
+                for (i = 0; i < rxBuf[1]; i++) {
+                    PRINT("%x ", rxBuf[i + 2]);
+                }
+                PRINT("\n");
+            } else {
+                if (crc & (1<<0)) {
+                    PRINT("crc error\n");
+                }
+
+                if (crc & (1<<1)) {
+                    PRINT("match type error\n");
+                }
+            }
+            break;
+        }
+        case TX_MODE_RX_TIMEOUT: // Timeout is about 200us
+        {
+            tx_end_flag = TRUE;
+            break;
+        }
+        case RX_MODE_RX_DATA:
+        {
+            if (crc == 0) {
+                uint8_t i;
+                RF_Wait_Rx_End();
+                PRINT("rx recv, rssi: %d\n", (int8_t)rxBuf[0]);
+                PRINT("len:%d-", rxBuf[1]);
+                
+                for (i = 0; i < rxBuf[1]; i++) {
+                    PRINT("%x ", rxBuf[i + 2]);
+                }
+                PRINT("\n");
+            } else {
+                if (crc & (1<<0)) {
+                    PRINT("crc error\n");
+                }
+
+                if (crc & (1<<1)) {
+                    PRINT("match type error\n");
+                }
+            }
+            break;
+        }
+        case RX_MODE_TX_FINISH:
+        {
+            rx_end_flag = TRUE;
+            tmos_set_event(taskID, SBP_RF_RF_RX_EVT);
+            break;
+        }
+        case RX_MODE_TX_FAIL:
+        {
+            rx_end_flag = TRUE;
+            tmos_set_event(taskID, SBP_RF_RF_RX_EVT);
+            break;
+        }
+    }
+}
+
+/*********************************************************************
+ * @fn      RF_ProcessEvent
+ *
+ * @brief   RF event processing
+ *
+ * @param   task_id - Task ID
+ * @param   events  - Event logo
+ *
+ * @return  Unfinished events
+ */
+uint16_t RF_ProcessEvent(uint8_t task_id, uint16_t events)
+{
+    if(events & SYS_EVENT_MSG)
+    {
+        uint8_t *pMsg;
+
+        if((pMsg = tmos_msg_receive(task_id)) != NULL)
+        {
+            // Release the TMOS message
+            tmos_msg_deallocate(pMsg);
+        }
+        // return unprocessed events
+        return (events ^ SYS_EVENT_MSG);
+    }
+    if(events & SBP_RF_START_DEVICE_EVT)
+    {
+        tmos_start_task(taskID, SBP_RF_PERIODIC_EVT, 1000);
+        return events ^ SBP_RF_START_DEVICE_EVT;
+    }
+    if(events & SBP_RF_PERIODIC_EVT)
+    {
+        RF_Shut();
+        tx_end_flag = FALSE;
+        if(!RF_Tx(TX_DATA, 10, 0xFF, 0xFF))
+        {
+            RF_Wait_Tx_End();
+        }
+        tmos_start_task(taskID, SBP_RF_PERIODIC_EVT, 1000);
+        return events ^ SBP_RF_PERIODIC_EVT;
+    }
+    if(events & SBP_RF_RF_RX_EVT)
+    {
+        uint8_t state;
+        RF_Shut();
+        TX_DATA[0]++;
+        rx_end_flag = FALSE;
+        state = RF_Rx(TX_DATA, 10, 0xFF, 0xFF);
+        PRINT("RX mode.state = %x\n", state);
+        return events ^ SBP_RF_RF_RX_EVT;
+    }
+    return 0;
+}
+
+/*********************************************************************
+ * @fn      RF_Init
+ *
+ * @brief   RF initialization
+ *
+ * @return  none
+ */
+void RF_Init(void)
+{
+    uint8_t    state;
+    rfConfig_t rf_Config;
+
+    tmos_memset(&rf_Config, 0, sizeof(rfConfig_t));
+    taskID = TMOS_ProcessEventRegister(RF_ProcessEvent);
+    // 0x55555555 and 0xAAAAAAAA are prohibited (recommended no more than 24 bit reversals, and no more than 6 consecutive 0 or 1)
+    rf_Config.accessAddress = 0x71764129; 
+    rf_Config.CRCInit = 0x555555;
+    rf_Config.Channel = 39;
+    rf_Config.Frequency = 2480000;
+    // Enabling LLE_MODE_EX_CHANNEL means selecting rfConfig.Frequency as the communication frequency
+    rf_Config.LLEMode = LLE_MODE_AUTO;
+    rf_Config.rfStatusCB = RF_2G4StatusCallBack;
+    rf_Config.RxMaxlen = 251;
+    state = RF_Config(&rf_Config);
+    PRINT("rf 2.4g init: %x\n", state);
+//    { // RX mode
+//        rx_end_flag = FALSE;
+//        state = RF_Rx(TX_DATA, 10, 0xFF, 0xFF);
+//        PRINT("RX mode.state = %x\n", state);
+//    }
+
+    { // TX mode
+        tmos_set_event( taskID , SBP_RF_PERIODIC_EVT );
+    }
+}
+
+/******************************** endfile @ main ******************************/
@@ -0,0 +1,67 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : main.c
+ * Author             : WCH
+ * Version            : V1.0
+ * Date               : 2020/08/06
+ * Description        :
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+/******************************************************************************/
+/* Header file contains */
+#include "CONFIG.h"
+#include "HAL.h"
+#include "RF_PHY.h"
+
+/*********************************************************************
+ * GLOBAL TYPEDEFS
+ */
+__attribute__((aligned(4))) uint32_t MEM_BUF[BLE_MEMHEAP_SIZE / 4];
+
+#if(defined(BLE_MAC)) && (BLE_MAC == TRUE)
+const uint8_t MacAddr[6] = {0x84, 0xC2, 0xE4, 0x03, 0x02, 0x02};
+#endif
+
+/*********************************************************************
+ * @fn      Main_Circulation
+ *
+ * @brief   Main loop
+ *
+ * @return  none
+ */
+__attribute__((section(".highcode")))
+__attribute__((noinline))
+void Main_Circulation(void)
+{
+    while(1)
+    {
+        TMOS_SystemProcess();
+    }
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main function
+ *
+ * @return  none
+ */
+int main(void)
+{
+    SystemCoreClockUpdate();
+    Delay_Init();
+#ifdef DEBUG
+    USART_Printf_Init( 115200 );
+#endif
+    PRINT("%s\n", VER_LIB);
+    WCHBLE_Init();
+    HAL_Init();
+    RF_RoleInit();
+    RF_Init();
+    Main_Circulation();
+}
+
+/******************************** endfile @ main ******************************/
@@ -0,0 +1,61 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : ch32v20x_it.c
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2022/06/16
+ * Description        : Main Interrupt Service Routines.
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+/*********************************************************************
+ * INCLUDES
+ */
+#include "ch32v20x_it.h"
+#include "CONFIG.h"
+
+/*********************************************************************
+ * LOCAL FUNCTIONS
+ */
+void NMI_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void HardFault_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+void BB_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+
+/*********************************************************************
+ * @fn      NMI_Handler
+ *
+ * @brief   This function handles NMI exception.
+ *
+ * @return  None
+ */
+void NMI_Handler(void)
+{
+}
+
+/*********************************************************************
+ * @fn      HardFault_Handler
+ *
+ * @brief   This function handles Hard Fault exception.
+ *
+ * @return  None
+ */
+void HardFault_Handler(void)
+{
+    while(1)
+    {
+    }
+}
+
+/*********************************************************************
+ * @fn      BB_IRQHandler
+ *
+ * @brief   BB Interrupt for BLE.
+ *
+ * @return  None
+ */
+void BB_IRQHandler(void)
+{
+    BB_IRQLibHandler();
+}
@@ -0,0 +1,33 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : rf_phy.h
+ * Author             : WCH
+ * Version            : V1.0
+ * Date               : 2018/11/12
+ * Description        :
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+#ifndef RF_PHY_H
+#define RF_PHY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SBP_RF_START_DEVICE_EVT    1
+#define SBP_RF_PERIODIC_EVT        2
+#define SBP_RF_RF_RX_EVT           4
+
+//If you add this macro when configured LLEMODE, the first byte received is the raw data, otherwise the RSSI value
+#define LLE_MODE_ORIGINAL_RX       (0x80) 
+
+extern void RF_Init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -0,0 +1,37 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : ch32v20x_conf.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2022/06/16
+ * Description        : Library configuration file.
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+#ifndef __CH32V20x_CONF_H
+#define __CH32V20x_CONF_H
+
+#include "ch32v20x_adc.h"
+#include "ch32v20x_bkp.h"
+#include "ch32v20x_can.h"
+#include "ch32v20x_crc.h"
+#include "ch32v20x_dbgmcu.h"
+#include "ch32v20x_dma.h"
+#include "ch32v20x_exti.h"
+#include "ch32v20x_flash.h"
+#include "ch32v20x_gpio.h"
+#include "ch32v20x_i2c.h"
+#include "ch32v20x_iwdg.h"
+#include "ch32v20x_pwr.h"
+#include "ch32v20x_rcc.h"
+#include "ch32v20x_rtc.h"
+#include "ch32v20x_spi.h"
+#include "ch32v20x_tim.h"
+#include "ch32v20x_usart.h"
+#include "ch32v20x_wwdg.h"
+#include "ch32v20x_it.h"
+#include "ch32v20x_misc.h"
+
+#endif /* __CH32V20x_CONF_H */
@@ -0,0 +1,18 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : ch32v20x_it.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2022/06/16
+ * Description        : This file contains the headers of the interrupt handlers.
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+#ifndef __CH32V20x_IT_H
+#define __CH32V20x_IT_H
+
+#include "debug.h"
+
+#endif /* __CH32V20x_IT_H */
@@ -0,0 +1,31 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : system_ch32v20x.h
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2022/06/16
+ * Description        : CH32V20x Device Peripheral Access Layer System Header File.
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+#ifndef __SYSTEM_ch32v20x_H
+#define __SYSTEM_ch32v20x_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern uint32_t SystemCoreClock; /* System Clock Frequency (Core Clock) */
+
+/* System_Exported_Functions */
+extern void SystemInit(void);
+extern void SystemCoreClockUpdate(void);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*__CH32V20x_SYSTEM_H */
@@ -0,0 +1,989 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : system_ch32v20x.c
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2021/06/06
+ * Description        : CH32V20x Device Peripheral Access Layer System Source File.
+ *                      For HSE = 32Mhz (CH32V208x/CH32V203RBT6)
+ *                      For HSE = 8Mhz (other CH32V203x)
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+#include "ch32v20x.h" 
+
+/* 
+* Uncomment the line corresponding to the desired System clock (SYSCLK) frequency (after 
+* reset the HSI is used as SYSCLK source).
+* If none of the define below is enabled, the HSI is used as System clock source. 
+*/
+//#define SYSCLK_FREQ_HSE    HSE_VALUE
+//#define SYSCLK_FREQ_48MHz_HSE  48000000
+//#define SYSCLK_FREQ_56MHz_HSE  56000000
+//#define SYSCLK_FREQ_72MHz_HSE  72000000
+#define SYSCLK_FREQ_96MHz_HSE  96000000
+//#define SYSCLK_FREQ_120MHz_HSE  120000000
+//#define SYSCLK_FREQ_144MHz_HSE  144000000
+//#define SYSCLK_FREQ_HSI    HSI_VALUE
+//#define SYSCLK_FREQ_48MHz_HSI  48000000
+//#define SYSCLK_FREQ_56MHz_HSI  56000000
+//#define SYSCLK_FREQ_72MHz_HSI  72000000
+//#define SYSCLK_FREQ_96MHz_HSI  96000000
+//#define SYSCLK_FREQ_120MHz_HSI  120000000
+//#define SYSCLK_FREQ_144MHz_HSI  144000000
+
+/* Clock Definitions */
+#ifdef SYSCLK_FREQ_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_HSE;              /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_48MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_48MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_56MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_56MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_72MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_72MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_96MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_96MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_120MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_120MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_144MHz_HSE
+uint32_t SystemCoreClock         = SYSCLK_FREQ_144MHz_HSE;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_48MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_48MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_56MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_56MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_72MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_72MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_96MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_96MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_120MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_120MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#elif defined SYSCLK_FREQ_144MHz_HSI
+uint32_t SystemCoreClock         = SYSCLK_FREQ_144MHz_HSI;        /* System Clock Frequency (Core Clock) */
+#else
+uint32_t SystemCoreClock         = HSI_VALUE;                    /* System Clock Frequency (Core Clock) */
+
+#endif
+
+__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+
+
+/* system_private_function_proto_types */
+static void SetSysClock(void);
+
+#ifdef SYSCLK_FREQ_HSE
+static void SetSysClockToHSE( void );
+#elif defined SYSCLK_FREQ_48MHz_HSE
+static void SetSysClockTo48_HSE( void );
+#elif defined SYSCLK_FREQ_56MHz_HSE
+static void SetSysClockTo56_HSE( void );
+#elif defined SYSCLK_FREQ_72MHz_HSE
+static void SetSysClockTo72_HSE( void );
+#elif defined SYSCLK_FREQ_96MHz_HSE
+static void SetSysClockTo96_HSE( void );
+#elif defined SYSCLK_FREQ_120MHz_HSE
+static void SetSysClockTo120_HSE( void );
+#elif defined SYSCLK_FREQ_144MHz_HSE
+static void SetSysClockTo144_HSE( void );
+#elif defined SYSCLK_FREQ_48MHz_HSI
+static void SetSysClockTo48_HSI( void );
+#elif defined SYSCLK_FREQ_56MHz_HSI
+static void SetSysClockTo56_HSI( void );
+#elif defined SYSCLK_FREQ_72MHz_HSI
+static void SetSysClockTo72_HSI( void );
+#elif defined SYSCLK_FREQ_96MHz_HSI
+static void SetSysClockTo96_HSI( void );
+#elif defined SYSCLK_FREQ_120MHz_HSI
+static void SetSysClockTo120_HSI( void );
+#elif defined SYSCLK_FREQ_144MHz_HSI
+static void SetSysClockTo144_HSI( void );
+
+#endif
+
+/*********************************************************************
+ * @fn      SystemInit
+ *
+ * @brief   Setup the microcontroller system Initialize the Embedded Flash Interface,
+ *        the PLL and update the SystemCoreClock variable.
+ *
+ * @return  none
+ */
+void SystemInit (void)
+{
+  RCC->CTLR |= (uint32_t)0x00000001;
+  RCC->CFGR0 &= (uint32_t)0xF8FF0000;
+  RCC->CTLR &= (uint32_t)0xFEF6FFFF;
+  RCC->CTLR &= (uint32_t)0xFFFBFFFF;
+  RCC->CFGR0 &= (uint32_t)0xFF80FFFF;
+  RCC->INTR = 0x009F0000;    
+  SetSysClock();
+}
+
+
+/*********************************************************************
+ * @fn      SystemCoreClockUpdate
+ *
+ * @brief   Update SystemCoreClock variable according to Clock Register Values.
+ *
+ * @return  none
+ */
+void SystemCoreClockUpdate (void)
+{
+  uint32_t tmp = 0, pllmull = 0, pllsource = 0, Pll_6_5 = 0;
+
+  tmp = RCC->CFGR0 & RCC_SWS;
+
+  switch (tmp)
+  {
+    case 0x00:
+      SystemCoreClock = HSI_VALUE;
+      break;
+    case 0x04:
+      SystemCoreClock = HSE_VALUE;
+      break;
+    case 0x08:
+      pllmull = RCC->CFGR0 & RCC_PLLMULL;
+      pllsource = RCC->CFGR0 & RCC_PLLSRC;
+      pllmull = ( pllmull >> 18) + 2;
+
+      if(pllmull == 17) pllmull = 18;
+
+      if (pllsource == 0x00)
+      {
+          if(EXTEN->EXTEN_CTR & EXTEN_PLL_HSI_PRE){
+              SystemCoreClock = HSI_VALUE * pllmull;
+          }
+          else{
+              SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
+          }
+      }
+      else
+      {
+#if defined (CH32V20x_D8W)
+        if((RCC->CFGR0 & (3<<22)) == (3<<22))
+        {
+          SystemCoreClock = ((HSE_VALUE>>1)) * pllmull;
+        }
+        else
+#endif
+        if ((RCC->CFGR0 & RCC_PLLXTPRE) != (uint32_t)RESET)
+        {
+#if defined (CH32V20x_D8) || defined (CH32V20x_D8W)
+          SystemCoreClock = ((HSE_VALUE>>2) >> 1) * pllmull;
+#else
+          SystemCoreClock = (HSE_VALUE >> 1) * pllmull;
+#endif
+        }
+        else
+        {
+#if defined (CH32V20x_D8) || defined (CH32V20x_D8W)
+            SystemCoreClock = (HSE_VALUE>>2) * pllmull;
+#else
+          SystemCoreClock = HSE_VALUE * pllmull;
+#endif
+        }
+      }
+
+      if(Pll_6_5 == 1) SystemCoreClock = (SystemCoreClock / 2);
+
+      break;
+    default:
+      SystemCoreClock = HSI_VALUE;
+      break;
+  }
+
+  tmp = AHBPrescTable[((RCC->CFGR0 & RCC_HPRE) >> 4)];
+  SystemCoreClock >>= tmp;
+}
+
+/*********************************************************************
+ * @fn      SetSysClock
+ *
+ * @brief   Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClock(void)
+{
+#ifdef SYSCLK_FREQ_HSE
+    SetSysClockToHSE();
+#elif defined SYSCLK_FREQ_48MHz_HSE
+    SetSysClockTo48_HSE();
+#elif defined SYSCLK_FREQ_56MHz_HSE
+    SetSysClockTo56_HSE();
+#elif defined SYSCLK_FREQ_72MHz_HSE
+    SetSysClockTo72_HSE();
+#elif defined SYSCLK_FREQ_96MHz_HSE
+    SetSysClockTo96_HSE();
+#elif defined SYSCLK_FREQ_120MHz_HSE
+    SetSysClockTo120_HSE();
+#elif defined SYSCLK_FREQ_144MHz_HSE
+    SetSysClockTo144_HSE();
+#elif defined SYSCLK_FREQ_48MHz_HSI
+    SetSysClockTo48_HSI();
+#elif defined SYSCLK_FREQ_56MHz_HSI
+    SetSysClockTo56_HSI();
+#elif defined SYSCLK_FREQ_72MHz_HSI
+    SetSysClockTo72_HSI();
+#elif defined SYSCLK_FREQ_96MHz_HSI
+    SetSysClockTo96_HSI();
+#elif defined SYSCLK_FREQ_120MHz_HSI
+    SetSysClockTo120_HSI();
+#elif defined SYSCLK_FREQ_144MHz_HSI
+    SetSysClockTo144_HSI();
+
+#endif
+ 
+ /* If none of the define above is enabled, the HSI is used as System clock
+  * source (default after reset) 
+	*/ 
+}
+
+
+#ifdef SYSCLK_FREQ_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockToHSE
+ *
+ * @brief   Sets HSE as System clock source and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockToHSE(void)
+{
+  __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+  
+   
+  RCC->CTLR |= ((uint32_t)RCC_HSEON);
+ 
+  /* Wait till HSE is ready and if Time out is reached exit */
+  do
+  {
+    HSEStatus = RCC->CTLR & RCC_HSERDY;
+    StartUpCounter++;  
+  } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+  if ((RCC->CTLR & RCC_HSERDY) != RESET)
+  {
+    HSEStatus = (uint32_t)0x01;
+  }
+  else
+  {
+    HSEStatus = (uint32_t)0x00;
+  }  
+
+  if (HSEStatus == (uint32_t)0x01)
+  {
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;      
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV1;
+    
+    /* Select HSE as system clock source 
+     *  CH32V20x_D6 (HSE=8MHZ)
+     *  CH32V20x_D8 (HSE=32MHZ)
+     *  CH32V20x_D8W (HSE=32MHZ)
+     */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_HSE;    
+
+    /* Wait till HSE is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x04)
+    {
+    }
+  }
+  else
+  { 
+		/* If HSE fails to start-up, the application will have wrong clock 
+     * configuration. User can add here some code to deal with this error 
+		 */
+  }  
+}
+
+#elif defined SYSCLK_FREQ_48MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo48_HSE
+ *
+ * @brief   Sets System clock frequency to 48MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo48_HSE(void)
+{
+  __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+     
+   
+  RCC->CTLR |= ((uint32_t)RCC_HSEON);
+  /* Wait till HSE is ready and if Time out is reached exit */
+  do
+  {
+    HSEStatus = RCC->CTLR & RCC_HSERDY;
+    StartUpCounter++;  
+  } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+  if ((RCC->CTLR & RCC_HSERDY) != RESET)
+  {
+    HSEStatus = (uint32_t)0x01;
+  }
+  else
+  {
+    HSEStatus = (uint32_t)0x00;
+  }  
+
+  if (HSEStatus == (uint32_t)0x01)
+  {
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;    
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;  
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  CH32V20x_D6-PLL configuration: PLLCLK = HSE * 6 = 48 MHz (HSE=8MHZ)
+     *  CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 6 = 48 MHz (HSE=32MHZ)
+     *  CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 6 = 48 MHz (HSE=32MHZ)
+     */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+     RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL6);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;    
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+  }
+  else
+  { 
+		/* 
+		 * If HSE fails to start-up, the application will have wrong clock 
+     * configuration. User can add here some code to deal with this error 
+		 */
+  } 
+}
+
+#elif defined SYSCLK_FREQ_56MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo56_HSE
+ *
+ * @brief   Sets System clock frequency to 56MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo56_HSE(void)
+{
+  __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+     
+  RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+  /* Wait till HSE is ready and if Time out is reached exit */
+  do
+  {
+    HSEStatus = RCC->CTLR & RCC_HSERDY;
+    StartUpCounter++;  
+  } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+  if ((RCC->CTLR & RCC_HSERDY) != RESET)
+  {
+    HSEStatus = (uint32_t)0x01;
+  }
+  else
+  {
+    HSEStatus = (uint32_t)0x00;
+  }  
+
+  if (HSEStatus == (uint32_t)0x01)
+  {
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;   
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+  
+    /*  CH32V20x_D6-PLL configuration: PLLCLK = HSE * 7 = 56 MHz (HSE=8MHZ)
+     *  CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 7 = 56 MHz (HSE=32MHZ)
+     *  CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 7 = 56 MHz (HSE=32MHZ)
+     */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL7);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;    
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+  }
+  else
+  { 
+		/* 
+		 * If HSE fails to start-up, the application will have wrong clock 
+     * configuration. User can add here some code to deal with this error 
+		 */
+  } 
+}
+
+#elif defined SYSCLK_FREQ_72MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo72_HSE
+ *
+ * @brief   Sets System clock frequency to 72MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo72_HSE(void)
+{
+  __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+     
+  RCC->CTLR |= ((uint32_t)RCC_HSEON);
+ 
+  /* Wait till HSE is ready and if Time out is reached exit */
+  do
+  {
+    HSEStatus = RCC->CTLR & RCC_HSERDY;
+    StartUpCounter++;  
+  } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+  if ((RCC->CTLR & RCC_HSERDY) != RESET)
+  {
+    HSEStatus = (uint32_t)0x01;
+  }
+  else
+  {
+    HSEStatus = (uint32_t)0x00;
+  }  
+
+  if (HSEStatus == (uint32_t)0x01)
+  {
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1; 
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1; 
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+ 
+    
+    /*  CH32V20x_D6-PLL configuration: PLLCLK = HSE * 9 = 72 MHz (HSE=8MHZ)
+     *  CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 9 = 72 MHz (HSE=32MHZ)
+     *  CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 9 = 72 MHz (HSE=32MHZ)
+     */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE |
+                                        RCC_PLLMULL));
+
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL9);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }    
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;    
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+  }
+  else
+  { 
+		/* 
+		 * If HSE fails to start-up, the application will have wrong clock 
+     * configuration. User can add here some code to deal with this error 
+		 */
+  }
+}
+
+
+#elif defined SYSCLK_FREQ_96MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo96_HSE
+ *
+ * @brief   Sets System clock frequency to 96MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo96_HSE(void)
+{
+  __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+  RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+  /* Wait till HSE is ready and if Time out is reached exit */
+  do
+  {
+    HSEStatus = RCC->CTLR & RCC_HSERDY;
+    StartUpCounter++;
+  } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+  if ((RCC->CTLR & RCC_HSERDY) != RESET)
+  {
+    HSEStatus = (uint32_t)0x01;
+  }
+  else
+  {
+    HSEStatus = (uint32_t)0x00;
+  }
+
+  if (HSEStatus == (uint32_t)0x01)
+  {
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    
+    /*  CH32V20x_D6-PLL configuration: PLLCLK = HSE * 12 = 96 MHz (HSE=8MHZ)
+     *  CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 12 = 96 MHz (HSE=32MHZ)
+     *  CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 12 = 96 MHz (HSE=32MHZ)
+     */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE |
+                                        RCC_PLLMULL));
+
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL12);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+  }
+  else
+  {
+        /*
+         * If HSE fails to start-up, the application will have wrong clock
+     * configuration. User can add here some code to deal with this error
+         */
+  }
+}
+
+
+#elif defined SYSCLK_FREQ_120MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo120_HSE
+ *
+ * @brief   Sets System clock frequency to 120MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo120_HSE(void)
+{
+    __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+    RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+    /* Wait till HSE is ready and if Time out is reached exit */
+    do
+    {
+        HSEStatus = RCC->CTLR & RCC_HSERDY;
+        StartUpCounter++;
+    } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+    if((RCC->CTLR & RCC_HSERDY) != RESET)
+    {
+        HSEStatus = (uint32_t)0x01;
+    }
+    else
+    {
+        HSEStatus = (uint32_t)0x00;
+    }
+
+    if(HSEStatus == (uint32_t)0x01)
+    {
+#if defined (CH32V20x_D8W)
+        RCC->CFGR0 |= (uint32_t)(3<<22);
+        /* HCLK = SYSCLK/2 */
+        RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV2;
+#else
+        /* HCLK = SYSCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+#endif
+        /* PCLK2 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+        /* PCLK1 = HCLK */
+        RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+        /*  CH32V20x_D6-PLL configuration: PLLCLK = HSE * 15 = 120 MHz (HSE=8MHZ)
+         *  CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 15 = 120 MHz (HSE=32MHZ)
+         *  CH32V20x_D8W-PLL configuration: PLLCLK = HSE/2 * 15 = 240 MHz (HSE=32MHZ)
+         */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE |
+                                              RCC_PLLMULL));
+
+        RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL15);
+
+        /* Enable PLL */
+        RCC->CTLR |= RCC_PLLON;
+        /* Wait till PLL is ready */
+        while((RCC->CTLR & RCC_PLLRDY) == 0)
+        {
+        }
+        /* Select PLL as system clock source */
+        RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+        RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+        /* Wait till PLL is used as system clock source */
+        while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+        {
+        }
+    }
+    else
+    {
+        /*
+         * If HSE fails to start-up, the application will have wrong clock
+         * configuration. User can add here some code to deal with this error
+         */
+    }
+}
+#elif defined SYSCLK_FREQ_144MHz_HSE
+
+/*********************************************************************
+ * @fn      SetSysClockTo144_HSE
+ *
+ * @brief   Sets System clock frequency to 144MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo144_HSE(void)
+{
+  __IO uint32_t StartUpCounter = 0, HSEStatus = 0;
+
+  RCC->CTLR |= ((uint32_t)RCC_HSEON);
+
+  /* Wait till HSE is ready and if Time out is reached exit */
+  do
+  {
+    HSEStatus = RCC->CTLR & RCC_HSERDY;
+    StartUpCounter++;
+  } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
+
+  if ((RCC->CTLR & RCC_HSERDY) != RESET)
+  {
+    HSEStatus = (uint32_t)0x01;
+  }
+  else
+  {
+    HSEStatus = (uint32_t)0x00;
+  }
+
+  if (HSEStatus == (uint32_t)0x01)
+  {
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    
+    /*  CH32V20x_D6-PLL configuration: PLLCLK = HSE * 18 = 144 MHz (HSE=8MHZ)
+     *  CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 18 = 144 MHz (HSE=32MHZ)
+     *  CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 18 = 144 MHz (HSE=32MHZ)
+     */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE |
+                                        RCC_PLLMULL));
+
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL18);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+  }
+  else
+  {
+        /*
+         * If HSE fails to start-up, the application will have wrong clock
+     * configuration. User can add here some code to deal with this error
+         */
+  }
+}
+
+#elif defined SYSCLK_FREQ_48MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo48_HSI
+ *
+ * @brief   Sets System clock frequency to 48MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo48_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 6 = 48 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+     RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL6);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+#elif defined SYSCLK_FREQ_56MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo56_HSI
+ *
+ * @brief   Sets System clock frequency to 56MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo56_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 7 = 48 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+     RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL7);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+#elif defined SYSCLK_FREQ_72MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo72_HSI
+ *
+ * @brief   Sets System clock frequency to 72MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo72_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 9 = 72 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+     RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL9);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+
+#elif defined SYSCLK_FREQ_96MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo96_HSI
+ *
+ * @brief   Sets System clock frequency to 96MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo96_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 12 = 96 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+     RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL12);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+
+#elif defined SYSCLK_FREQ_120MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo120_HSI
+ *
+ * @brief   Sets System clock frequency to 120MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo120_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 15 = 120 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE |
+                                          RCC_PLLMULL));
+
+    RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL15);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+#elif defined SYSCLK_FREQ_144MHz_HSI
+
+/*********************************************************************
+ * @fn      SetSysClockTo144_HSI
+ *
+ * @brief   Sets System clock frequency to 144MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
+ *
+ * @return  none
+ */
+static void SetSysClockTo144_HSI(void)
+{
+    EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
+
+    /* HCLK = SYSCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
+    /* PCLK2 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
+    /* PCLK1 = HCLK */
+    RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
+
+    /*  PLL configuration: PLLCLK = HSI * 18 = 144 MHz */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
+
+     RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL18);
+
+    /* Enable PLL */
+    RCC->CTLR |= RCC_PLLON;
+    /* Wait till PLL is ready */
+    while((RCC->CTLR & RCC_PLLRDY) == 0)
+    {
+    }
+    /* Select PLL as system clock source */
+    RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
+    RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
+    /* Wait till PLL is used as system clock source */
+    while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
+    {
+    }
+}
+
+
+#endif