V2.0
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@@ -2,7 +2,7 @@
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* File Name : ch32v20x_it.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/06/06
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* Date : 2023/12/29
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* Description : Main Interrupt Service Routines.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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@@ -24,6 +24,9 @@ void EXTI0_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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*/
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void NMI_Handler(void)
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{
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while (1)
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{
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}
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}
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/*********************************************************************
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@@ -2,7 +2,7 @@
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* File Name : main.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/06/06
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* Date : 2023/12/29
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* Description : Main program body.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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@@ -55,7 +55,7 @@ void EXTI0_INT_INIT(void)
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NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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}
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@@ -69,7 +69,7 @@ void EXTI0_INT_INIT(void)
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*/
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int main(void)
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{
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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SystemCoreClockUpdate();
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Delay_Init();
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USART_Printf_Init(115200);
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@@ -111,10 +111,10 @@ static void SetSysClockTo144_HSI( void );
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void SystemInit (void)
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{
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RCC->CTLR |= (uint32_t)0x00000001;
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RCC->CFGR0 &= (uint32_t)0xF8FF0000;
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RCC->CFGR0 &= (uint32_t)0xF0FF0000;
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RCC->CTLR &= (uint32_t)0xFEF6FFFF;
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RCC->CTLR &= (uint32_t)0xFFFBFFFF;
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RCC->CFGR0 &= (uint32_t)0xFF80FFFF;
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RCC->CFGR0 &= (uint32_t)0xFF00FFFF;
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RCC->INTR = 0x009F0000;
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SetSysClock();
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}
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