T640_DTU/USER0813/main.c

/****************************************Copyright (c)****************************************************
**                                      
**
**--------------File Info---------------------------------------------------------------------------------
** File name:               main.c
** Descriptions:            
**
**--------------------------------------------------------------------------------------------------------
** Created by:              
** Created date:           
** Version:                 
** Descriptions:            
**
**--------------------------------------------------------------------------------------------------------
** Modified by:             
** Modified date:           
** Version:                 
** Descriptions:            
**
*********************************************************************************************************/
#define THIS_FILE_ID 1
/* Includes ------------------------------------------------------------------*/
#include <stm32f10x.h>
#include "includes.h"

void MY_NVIC_Init()
{
	NVIC_InitTypeDef NVIC_InitStructure; 
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);          //选择中断分组2
RunMake(THIS_FILE_ID);
	//串口1
	NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_Init(&NVIC_InitStructure);

RunMake(THIS_FILE_ID);
	//串口2
	NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_Init(&NVIC_InitStructure);

RunMake(THIS_FILE_ID);
	//串口3
	NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_Init(&NVIC_InitStructure);

RunMake(THIS_FILE_ID);
//	//DMA中断设置
	NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_Init(&NVIC_InitStructure);
RunMake(THIS_FILE_ID);
	NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel2_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_Init(&NVIC_InitStructure);

  NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;	
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);	
	
  NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;	
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);	

  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;	
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);		
	
//外部中断
  NVIC_InitStructure.NVIC_IRQChannel=EXTI15_10_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
  NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
  NVIC_Init(&NVIC_InitStructure);		
}



void IWDG_Configuration(void)
{
	RCC->CSR|=0x01;
	while(!((RCC->CSR>>1)&0x01));
	
	if(RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET)RCC_ClearFlag();  
//写入0x5555,用于允许狗狗寄存器写入功能
	IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
 
//狗狗时钟分频,40K/256=156HZ(6.4ms)
	IWDG_SetPrescaler(IWDG_Prescaler_256);
 
//喂狗时间 
	//IWDG_SetReload(200);1.28s/6.4MS=200 .注意不能大于0xfff
	IWDG_SetReload(500);//3.2s/6.4MS=500 .注意不能大于0xfff
	

//使能狗狗
	IWDG_Enable();
}


//void DelayMs(unsigned short t)
//{
//	unsigned short ct;
//	while(t--){
//		for(ct=0;ct<6800;ct++);
//	}
//}
/**********************************************************************************************************
 main()
**********************************************************************************************************/
int main (void)
{
	IWDG_Configuration(); 
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//复用功能IO 时钟使能  这里必须先使能复用IO的时钟，再关闭JTAG功能
	GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);  // JTAG-DP Disabled and SW-DP Enabled

	ExtWatchDogInit();
	FEED_EXTWATCHDOG();//喂狗
	IWDG_ReloadCounter();//喂狗
	FEED_EXTWATCHDOG();//喂狗
	MY_NVIC_Init();
	/* Initialize RTX and start init    */ 
	os_sys_init_user(MainTask,1,stkMainTask,sizeof(stkMainTask));
	while(1){}
	return (0);
}




/*********************************************************************************************************
      END FILE
*********************************************************************************************************/