1번과 3번은 DMA를 이용하여 ADC값을 전송받고 2번 ADC는 인터럽트로 동작하는 소스

  



/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************  

* File Name          : main.c  

* Author             : MCD Application Team  

* Version            : V2.0.1  

* Date               : 06/13/2008  

* Description        : Main program body  

********************************************************************************  

* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS  

* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.  

* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,  

* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE  

* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING  

* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.  

*******************************************************************************/  

  

/* Includes ------------------------------------------------------------------*/  

#include "stm32f10x_lib.h"  

  

/* Private typedef -----------------------------------------------------------*/  

/* Private define ------------------------------------------------------------*/  

#define ADC1_DR_Address    ((u32)0x4001244C)  

#define ADC3_DR_Address    ((u32)0x40013C4C)  

  

/* Private macro -------------------------------------------------------------*/  

/* Private variables ---------------------------------------------------------*/  

ADC_InitTypeDef ADC_InitStructure;  

DMA_InitTypeDef DMA_InitStructure;  

vu16 ADC1ConvertedValue = 0, ADC3ConvertedValue = 0;  

ErrorStatus HSEStartUpStatus;  

      

/* Private function prototypes -----------------------------------------------*/  

void RCC_Configuration(void);  

void GPIO_Configuration(void);  

void NVIC_Configuration(void);  

    

/* Private functions ---------------------------------------------------------*/  

  

/*******************************************************************************  

* Function Name  : main  

* Description    : Main program  

* Input          : None  

* Output         : None  

* Return         : None  

*******************************************************************************/  

int main(void)  

{  

#ifdef DEBUG  

  debug();  

#endif  

  

  /* System clocks configuration ---------------------------------------------*/  

  RCC_Configuration();  

  

  /* NVIC configuration ------------------------------------------------------*/  

  NVIC_Configuration();  

  

  /* GPIO configuration ------------------------------------------------------*/  

  GPIO_Configuration();  

  

  /* DMA1 channel1 configuration ----------------------------------------------*/  

  DMA_DeInit(DMA1_Channel1);  

  DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;  

  DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC1ConvertedValue;  

  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;  

  DMA_InitStructure.DMA_BufferSize = 1;  

  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;  

  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;  

  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;  

  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;  

  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;  

  DMA_InitStructure.DMA_Priority = DMA_Priority_High;  

  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;  

  DMA_Init(DMA1_Channel1, &DMA_InitStructure);    

  /* Enable DMA1 channel1 */  

  DMA_Cmd(DMA1_Channel1, ENABLE);  

  

  /* DMA2 channel5 configuration ----------------------------------------------*/  

  DMA_DeInit(DMA2_Channel5);  

  DMA_InitStructure.DMA_PeripheralBaseAddr = ADC3_DR_Address;  

  DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC3ConvertedValue;  

  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;  

  DMA_InitStructure.DMA_BufferSize = 1;  

  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;  

  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;  

  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;  

  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;  

  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;  

  DMA_InitStructure.DMA_Priority = DMA_Priority_High;  

  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;  

  DMA_Init(DMA2_Channel5, &DMA_InitStructure);    

  /* Enable DMA2 channel5 */  

  DMA_Cmd(DMA2_Channel5, ENABLE);  

       

  /* ADC1 configuration ------------------------------------------------------*/  

  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;  

  ADC_InitStructure.ADC_ScanConvMode = DISABLE;  

  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;  

  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;  

  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;  

  ADC_InitStructure.ADC_NbrOfChannel = 1;  

  ADC_Init(ADC1, &ADC_InitStructure);  

  /* ADC1 regular channels configuration */   

  ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 1, ADC_SampleTime_28Cycles5);      

  /* Enable ADC1 DMA */  

  ADC_DMACmd(ADC1, ENABLE);  

  

  /* ADC2 configuration ------------------------------------------------------*/  

  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;  

  ADC_InitStructure.ADC_ScanConvMode = DISABLE;  

  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;  

  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;  

  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;  

  ADC_InitStructure.ADC_NbrOfChannel = 1;  

  ADC_Init(ADC2, &ADC_InitStructure);  

  /* ADC2 regular channels configuration */   

  ADC_RegularChannelConfig(ADC2, ADC_Channel_13, 1, ADC_SampleTime_28Cycles5);  

  /* Enable ADC2 EOC interupt */  

  ADC_ITConfig(ADC2, ADC_IT_EOC, ENABLE);  

  

  /* ADC3 configuration ------------------------------------------------------*/  

  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;  

  ADC_InitStructure.ADC_ScanConvMode = DISABLE;  

  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;  

  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;  

  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;  

  ADC_InitStructure.ADC_NbrOfChannel = 1;  

  ADC_Init(ADC3, &ADC_InitStructure);  

  /* ADC3 regular channel14 configuration */   

  ADC_RegularChannelConfig(ADC3, ADC_Channel_12, 1, ADC_SampleTime_28Cycles5);  

  /* Enable ADC3 DMA */  

  ADC_DMACmd(ADC3, ENABLE);  

  

  /* Enable ADC1 */  

  ADC_Cmd(ADC1, ENABLE);  

  

  /* Enable ADC1 reset calibaration register */     

  ADC_ResetCalibration(ADC1);  

  /* Check the end of ADC1 reset calibration register */  

  while(ADC_GetResetCalibrationStatus(ADC1));  

  

  /* Start ADC1 calibaration */  

  ADC_StartCalibration(ADC1);  

  /* Check the end of ADC1 calibration */  

  while(ADC_GetCalibrationStatus(ADC1));  

  

  /* Enable ADC2 */  

  ADC_Cmd(ADC2, ENABLE);  

  

  /* Enable ADC2 reset calibaration register */     

  ADC_ResetCalibration(ADC2);  

  /* Check the end of ADC2 reset calibration register */  

  while(ADC_GetResetCalibrationStatus(ADC2));  

  

  /* Start ADC2 calibaration */  

  ADC_StartCalibration(ADC2);  

  /* Check the end of ADC2 calibration */  

  while(ADC_GetCalibrationStatus(ADC2));  

  

  /* Enable ADC3 */  

  ADC_Cmd(ADC3, ENABLE);  

  

  /* Enable ADC3 reset calibaration register */     

  ADC_ResetCalibration(ADC3);  

  /* Check the end of ADC3 reset calibration register */  

  while(ADC_GetResetCalibrationStatus(ADC3));  

  

  /* Start ADC3 calibaration */  

  ADC_StartCalibration(ADC3);  

  /* Check the end of ADC3 calibration */  

  while(ADC_GetCalibrationStatus(ADC3));  

  

  /* Start ADC1 Software Conversion */   

  ADC_SoftwareStartConvCmd(ADC1, ENABLE);  

  /* Start ADC2 Software Conversion */   

  ADC_SoftwareStartConvCmd(ADC2, ENABLE);  

  /* Start ADC3 Software Conversion */   

  ADC_SoftwareStartConvCmd(ADC3, ENABLE);  

  

  while (1)  

  {  

  }  

}  

  

/*******************************************************************************  

* Function Name  : RCC_Configuration  

* Description    : Configures the different system clocks.  

* Input          : None  

* Output         : None  

* Return         : None  

*******************************************************************************/  

void RCC_Configuration(void)  

{  

  /* RCC system reset(for debug purpose) */  

  RCC_DeInit();  

  

  /* Enable HSE */  

  RCC_HSEConfig(RCC_HSE_ON);  

  

  /* Wait till HSE is ready */  

  HSEStartUpStatus = RCC_WaitForHSEStartUp();      if(HSEStartUpStatus == SUCCESS)    {      /* Enable Prefetch Buffer */      FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);        /* Flash 2 wait state */      FLASH_SetLatency(FLASH_Latency_2);          /* HCLK = SYSCLK */      RCC_HCLKConfig(RCC_SYSCLK_Div1);           /* PCLK2 = HCLK */      RCC_PCLK2Config(RCC_HCLK_Div1);         /* PCLK1 = HCLK/2 */      RCC_PCLK1Config(RCC_HCLK_Div2);        /* ADCCLK = PCLK2/4 */      RCC_ADCCLKConfig(RCC_PCLK2_Div4);           /* PLLCLK = 8MHz * 7 = 56 MHz */      RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_7);        /* Enable PLL */       RCC_PLLCmd(ENABLE);        /* Wait till PLL is ready */      while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)      {      }        /* Select PLL as system clock source */      RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);        /* Wait till PLL is used as system clock source */      while(RCC_GetSYSCLKSource() != 0x08)      {      }    }    /* Enable peripheral clocks --------------------------------------------------*/    /* Enable DMA1 and DMA2 clocks */    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1 | RCC_AHBPeriph_DMA2, ENABLE);      /* Enable ADC1, ADC2, ADC3 and GPIOC clocks */    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2 |                           RCC_APB2Periph_ADC3 | RCC_APB2Periph_GPIOC, ENABLE);  }    /*******************************************************************************  * Function Name  : GPIO_Configuration  * Description    : Configures the different GPIO ports.  * Input          : None  * Output         : None  * Return         : None  *******************************************************************************/  void GPIO_Configuration(void)  {    GPIO_InitTypeDef GPIO_InitStructure;      /* Configure PC.02, PC.03 and PC.04 (ADC Channel12, ADC Channel13 and        ADC Channel14) as analog inputs */    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4;    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;    GPIO_Init(GPIOC, &GPIO_InitStructure);  }    /*******************************************************************************  * Function Name  : NVIC_Configuration  * Description    : Configures Vector Table base location.  * Input          : None  * Output         : None  * Return         : None  *******************************************************************************/  void NVIC_Configuration(void)  {    NVIC_InitTypeDef NVIC_InitStructure;    #ifdef  VECT_TAB_RAM      /* Set the Vector Table base location at 0x20000000 */     NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);   #else  /* VECT_TAB_FLASH  */    /* Set the Vector Table base location at 0x08000000 */     NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);     #endif      /* Configure and enable ADC interrupt */    NVIC_InitStructure.NVIC_IRQChannel = ADC1_2_IRQChannel;    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    NVIC_Init(&NVIC_InitStructure);  }    #ifdef  DEBUG  /*******************************************************************************  * Function Name  : assert_failed  * Description    : Reports the name of the source file and the source line number  *                  where the assert_param error has occurred.  * Input          : - file: pointer to the source file name  *                  - line: assert_param error line source number  * Output         : None  * Return         : None  *******************************************************************************/  void assert_failed(u8* file, u32 line)  {     /* User can add his own implementation to report the file name and line number,       ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */      /* Infinite loop */    while (1)    {    }  }  #endif    /******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/