stm32DMA中斷采集多路ADC數據+OLED12864漢字顯示

ID:521503 · 發表于 2019-12-15 15:12

#include "stm32f10x.h"
#include "OLED12864.h"
#include "comm.h"
#include "keyled.h"

Systemtypedef             System;
ADCtypedef                      ADResult[2];
extern u32  ADC_BUF[2];
u32 temp=0; //電壓數據
//unsigned short ADResult;

/**
  * @brief  STM32時鐘系統初始化
      *                                     SYSClk= 72MHz
      *                                     APB1       = 36MHz
      *                                     APB2       = 72MHz
      *                                     AHB       = 72MHz
      *                                     ADC_Clk = 18MHz
      * @參數 None
  * @返回值 None
  */
void Stm32_Clock_Init(void)
{
      RCC->CR|=0x00010000;       //外部高速時鐘使能HSEON
      while(!(RCC->CR>>17));       //等待外部時鐘就緒

      /* PLL=9*HSE OSC,       APB1=AHB/DIV2, APB2=AHB/DIV1,       ADC_Clk = APB2/4 */
      RCC->CFGR=0X1C4400;
      RCC->CFGR|=1<<16;                         //HSE as PLLSRC

      FLASH->ACR|=0x32;                         //FLASH 2個延時周期

      RCC->CR|=0x01000000;       //PLLON
      while(!(RCC->CR>>25));       //等待PLL鎖定

      RCC->CFGR|=0x00000002;       //PLL作為系統時鐘
      while((RCC->CFGR & 0x0c) != 0x08);       //wait,PLL used as system clock
}

void SystemVar_Init(void)
{
      System.HPriTime = 0;
      System.LPriTime = 0;

}

/**
  * @brief  用戶任務調度定時器初始化.
  *                                     周期1ms.
  *                                     使能更新中斷.
      * @參數 None
  * @返回值 None
  */
void UserTaskTimer_Init(void)
{
      TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;             //???

      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

      TIM_TimeBaseStructure.TIM_Prescaler                = 71;
      TIM_TimeBaseStructure.TIM_Period                               = 1000;//1ms時間設定

      TIM_TimeBaseStructure.TIM_ClockDivision = 0;
      TIM_TimeBaseStructure.TIM_CounterMode       = TIM_CounterMode_Up;
      TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

      TIM_ClearITPendingBit(TIM3,       TIM_IT_Update);
      TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);

      {
            NVIC_InitTypeDef NVIC_InitStructure;

            NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
            NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
            NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
            NVIC_InitStructure.NVIC_IRQChannelCmd       =       ENABLE;
            NVIC_Init(&NVIC_InitStructure);
      }

      TIM_Cmd(TIM3, ENABLE);
}

/**
  * @brief  用戶任務調度定時器更新中斷.
  *                                     啟動ADC轉換.
  *                                     軟定時器更新.
      * @參數 None
  * @返回值 None
  */
void TIM3_IRQHandler(void)
{
      static u32 TimeCount = 0;                                              //???
      if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
      {
            TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
            TimeCount++;

            if(TimeCount % HPRITASK_TIME_MS == 0)             System.HPriTime = 1;
            if(TimeCount % LPRITASK_TIME_MS == 0)             System.LPriTime = 1;

      }
}

int main(void)
{
      u32 wd;
      NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
      Stm32_Clock_Init();

      SystemVar_Init();

      LED_Init();

      AD_init();
      ADvar_init();

      UserTaskTimer_Init();

      OLED_Init();
      OLED_Fill(0);
//       OLED_P8x16Str(0,0,"BLDC CLOSED LOOP");
//       OLED_P8x16Str(5,2,"Targe:    rpm");
////       OLED_P8x16Str(5,4,"Real :    rpm");
////       OLED_P8x16Str(5,6,"VBUS :    mV");
//       OLED_P8x16Str(5,6,"D_Y :    mV");
//       OLED_P8x16Str(5,4,"W_D :    mV");
      OLED_ShowCHinese(0,4,19);//運
      OLED_ShowCHinese(18,4,20);//行
      OLED_ShowCHinese(36,4,21);//時
      OLED_ShowCHinese(54,4,22);//間
      OLED_ShowCHinese(72,4,13);//
      LED1 = LED2 = LED3 = 0;
      LED4 = LED5 = 1;
      while(1)
      {
            if(System.HPriTime)
            {
                     System.HPriTime = 0;
                     // do something
                     LED2 = !LED2;
            }
            else if(System.LPriTime)
            {
                     //刷新HMI信息
                     System.LPriTime = 0;
                     temp = ((ADResult[0].avg*3300)/4096); //電壓數據轉換
                     wd = ((ADResult[1].avg*3300)/4096);
                     Display_data(50,6,temp,0); //OLED打印電壓數據
                     Display_data(50,4,wd,0); //OLED打印電壓數據
            }
      }
}

ID:469589 · 發表于 2022-11-6 09:32

漢字顯示有做查表的沒？

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stm32DMA中斷采集多路ADC數據+OLED12864漢字顯示