systm_init.c

基于STM32的双极性逆变器软件

#include "stm32f10x_lib.h"
#include "stm32f10x_it.h"
#include "PWM_adjust.h"
#include "uart.h"
#include "adc.h"
#include "key.h"
/************************************************************************/

GPIO_InitTypeDef              GPIO_InitStructure;
TIM_TimeBaseInitTypeDef       TIM1_TimeBaseStructure;
TIM_OCInitTypeDef             TIM1_OCInitStructure;
TIM_TimeBaseInitTypeDef       TIM_TimeBaseStructure;
TIM_ICInitTypeDef             TIM_ICInitStructure;
EXTI_InitTypeDef              EXTI_InitStructure;
ErrorStatus                   HSEStartUpStatus;
//DMA_InitTypeDef               DMA_InitStructure;


/*******************************************************************************
* 函数名  : SysTick定义
* 描述    : 定义SysTick，使之每100uS产生一次中断。
* 输入    : 无
* 输出    : 无
* 返回    : 无
*******************************************************************************/
void SysTick_Configuration(void)
{
  
  SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);// 选择 AHB 时钟(HCLK) 作为 SysTick 时钟源 

  NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 1, 0); // 设定 SysTick Priority 为 3
   
  SysTick_SetReload(72000);// SysTick interrupt each 100uS with HCLK equal to 72MHz

  SysTick_ITConfig(ENABLE);// Enable the SysTick Interrupt	Disable	  //ENABLE

  SysTick_CounterCmd(SysTick_Counter_Enable);			  //Enable
}


/*******************************************************************************
* 函数名  : RCC定义
* 描述    : 定义不同的系统时钟
* 输入    : 无
* 输出    : 无
* 返回    : 无
*******************************************************************************/
void RCC_Configuration(void)
{
   
  RCC_DeInit();// RCC system reset(for debug purpose)

   
  RCC_HSEConfig(RCC_HSE_ON);//Enable HSE

   
  HSEStartUpStatus = RCC_WaitForHSEStartUp(); // Wait till HSE is ready

  if(HSEStartUpStatus == SUCCESS)
  {
    
    RCC_HCLKConfig(RCC_SYSCLK_Div1); // HCLK = SYSCLK 
  
    RCC_PCLK2Config(RCC_HCLK_Div1); //PCLK2 = HCLK

    RCC_PCLK1Config(RCC_HCLK_Div2);	// PCLK1 = HCLK/2
	    
    RCC_ADCCLKConfig(RCC_PCLK2_Div4); // ADCCLK = PCLK2/4 

    FLASH_SetLatency(FLASH_Latency_2); // Flash 2 wait state
     
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);// Enable Prefetch Buffer

    RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);// PLLCLK = 8MHz * 9 = 72 MHz 
    RCC_PLLCmd(ENABLE);	// Enable PLL 
																							  

    while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) // Wait till PLL is ready
    {
    }

    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); // Select PLL as system clock source

    while(RCC_GetSYSCLKSource() != 0x08)   // Wait till PLL is used as system clock source 
    {
    }
  }
   
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |RCC_APB2Periph_GPIOC |RCC_APB2Periph_ADC1 |
  						RCC_APB2Periph_ADC2 |RCC_APB2Periph_USART1|RCC_APB2Periph_TIM1 |RCC_APB2Periph_AFIO, ENABLE);// Enable GPIOA and AFIO clocks 
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
}

/*******************************************************************************
* 函数名  : NVIC定义
* 描述    : 定义中断向量表
* 输入    : 无
* 输出    : 无
* 返回    : 无
*******************************************************************************/
void NVIC_Configuration(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;
  
#ifdef  VECT_TAB_RAM  
    
  NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); // Set the Vector Table base location at 0x20000000
#else  // VECT_TAB_FLASH  
    
  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);// Set the Vector Table base location at 0x08000000   
#endif

  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);// Configure one bit for preemption priority

 //USART1
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQChannel;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; 
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  /**************************** Enable ADC IRQChannel ******************************/
  NVIC_InitStructure.NVIC_IRQChannel = ADC1_2_IRQChannel ;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure); 
  
}


/*******************************************************************************
* 函数名  : GPIO定义
* 描述    : 定义不同的GPIO端口
* 输入    : 无
* 输出    : 无
* 返回    : 无
*******************************************************************************/
void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
	
    /* Configure PA.0,1 (ADC Channel) as analog input -------------------------*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* Configure USARTx_Tx as alternate function push-pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  
  /* Configure USARTx_Rx as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  
  
    //PA.8口设置为TIM1的OC1输出口
     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 ;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_Init(GPIOA, &GPIO_InitStructure);

    //PB.13口设置为TIM1_CH1N输出口 
	//------------------------------------------
     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 ;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_Init(GPIOB, &GPIO_InitStructure);  
	//---------------------------------------------------
	 /*GPIOA Configuration: TIM3 channel 1 as alternate function push-pull */
	/* GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_1 ;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_Init(GPIOB, &GPIO_InitStructure);*/

	  /* Configure PB8/12/14/15 as Output push-pull */
	  //--------------------------PB1..PB13-------------------------
     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_8|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_15;
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
     GPIO_Init(GPIOB, &GPIO_InitStructure); //LCD

	 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
     GPIO_Init(GPIOB, &GPIO_InitStructure);

	 //----------------------------------------------------------------
	 /*GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6;	   //PB4 FOR WORK;PB5 FOR STOP;PB6 FOR WARNING
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
     GPIO_Init(GPIOB, &GPIO_InitStructure); //LED
	 */
 
}



void Sys_Configuration(void)
{
     
  RCC_Configuration();	//定义系统时钟
  SysTick_Configuration();//定义SysTick
  NVIC_Configuration();//定义中断向量表
  GPIO_Configuration();//定义GPIO
  PWM_DMA_Configuration();
  TIM_Configuration();
  USART_Configuration();
  adc_Configuration();
  key_GPIO_init();
  //TEXTI_Configuration();//定义外部中断端口
  
}