基于STM32 8通道ADC采样实现源代码（转） 以后设计参考使用

#include "stm32f10x_lib.h"

#include <stdio.h>
extern void board_Configuration(void);

extern unsigned short ADC_ConvertedValue[8];

int main(void)

{

unsigned int i="0";

unsigned short AD_scaled_ex[8];

unsigned short AD_scaled[8];

board_Configuration();

while (1)

{

for(i=0;i<8;i++)

{

AD_scaled[i]=ADC_ConvertedValue[i];

if (AD_scaled[i] != AD_scaled_ex[i])

{

printf("AD%d value = %d\r\n",i,AD_scaled[i]);

AD_scaled_ex[i] = AD_scaled[i];

}

}

for(i=0;i<60000000;i++);

}

}

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

#include "stm32f10x_lib.h"

#include <stdio.h>

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

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

#define ADC1_DR_Address ((u32)0x4001244C)

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

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

ADC_InitTypeDef ADC_InitStructure;

DMA_InitTypeDef DMA_InitStructure;

unsigned short ADC_ConvertedValue[8];

ErrorStatus HSEStartUpStatus;

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

void RCC_Configuration(void);

void NVIC_Configuration(void);

void GPIO_Configuration(void);

void USART_Configuration(void);

void DMA_Configuration(void);

void ADC_Configuration(void);

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

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

* Function Name : main

* Description : Main program.

* Input : None

* Output : None

* Return : None

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

void board_Configuration(void)

{

#ifdef DEBUG

debug();

#endif

/* Configure the system clocks */

RCC_Configuration();

/* NVIC Configuration */

NVIC_Configuration();

/* Configure the GPIOs */

GPIO_Configuration();

/* Configure the USART1 */

USART_Configuration();

/* Configure the DMA */

DMA_Configuration();

/* Configure the DMA */

ADC_Configuration();

}

#ifdef DEBUG

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

* Function Name : assert_failed

* Description : Reports the name of the source file and the source line number

* where the assert error has occurred.

* Input : - file: pointer to the source file name

* - line: assert 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 */

printf("\n\r Wrong parameter value detected on\r\n");

printf(" file %s\r\n", file);

printf(" line %d\r\n", line);

/* Infinite loop */

/* while (1)

{

} */

}

#endif

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

* Function Name : DMA_Configuration

* Description : Configures the different system clocks.

* Input : None

* Output : None

* Return : None

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

void DMA_Configuration(void)

{

DMA_DeInit(DMA_Channel1);

DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;

DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_ConvertedValue;

DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;

DMA_InitStructure.DMA_BufferSize = 8;

DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;

DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;

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(DMA_Channel1, &DMA_InitStructure);

/* Enable DMA channel1 */

DMA_Cmd(DMA_Channel1, ENABLE);

}

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

* Function Name : ADC_Configuration

* Description : Configures the different system clocks.

* Input : None

* Output : None

* Return : None

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

void ADC_Configuration(void)

{

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

ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;

ADC_InitStructure.ADC_ScanConvMode = ENABLE;

ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;

ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;

ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;

ADC_InitStructure.ADC_NbrOfChannel = 8;

ADC_Init(ADC1, &ADC_InitStructure);

/* ADC1 regular channel8 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel9 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 2, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel10 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 3, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel11 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 4, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel12 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 5, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel13 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 6, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel14 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 7, ADC_SampleTime_55Cycles5);

/* ADC1 regular channel15 configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_15, 8, ADC_SampleTime_55Cycles5);

/* Enable ADC1 DMA */

ADC_DMACmd(ADC1, 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));

/* Start ADC1 Software Conversion */

ADC_SoftwareStartConvCmd(ADC1, ENABLE);

}

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

* 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)

{

/* 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);

/* Flash 2 wait state */

FLASH_SetLatency(FLASH_Latency_2);

/* Enable Prefetch Buffer */

FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

/* PLLCLK = 8MHz * 9 = 72 MHz */

RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

/* 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 USART1 and GPIOA clock */

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);

/* Enable DMA clock */

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA, ENABLE);

/* Enable ADC1 and GPIOC clock */

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOC|

RCC_APB2Periph_GPIOB, ENABLE);

}

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

* Function Name : NVIC_Configuration

* Description : Configures Vector Table base location.

* Input : None

* Output : None

* Return : None

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

void NVIC_Configuration(void)

{

#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

}

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

* 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 USART1 Tx (PA.09) as alternate function push-pull */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure USART1 Rx (PA.10) as input floating */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure PC.0\1\2\3\4\5 (ADC Channel10\11\12\13\14\15) as analog input*/

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|

GPIO_Pin_2|GPIO_Pin_3|

GPIO_Pin_4|GPIO_Pin_5;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;

GPIO_Init(GPIOC, &GPIO_InitStructure);

/* Configure PB.0\1 (ADC Channel8\9) as analog input*/

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;

GPIO_Init(GPIOB, &GPIO_InitStructure);

}

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

* Function Name : USART_Configuration

* Description : Configures the USART1.

* Input : None

* Output : None

* Return : None

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

void USART_Configuration(void)

{

USART_InitTypeDef USART_InitStructure;

/* USART1 configuration ------------------------------------------------------*/

/* USART1 configured as follow:

- BaudRate = 115200 baud

- Word Length = 8 Bits

- One Stop Bit

- No parity

- Hardware flow control disabled (RTS and CTS signals)

- Receive and transmit enabled

- USART Clock disabled

- USART CPOL: Clock is active low

- USART CPHA: Data is captured on the middle

- USART LastBit: The clock pulse of the last data bit is not output to

the SCLK pin

*/

USART_InitStructure.USART_BaudRate = 115200;

USART_InitStructure.USART_WordLength = USART_WordLength_8b;

USART_InitStructure.USART_StopBits = USART_StopBits_1;

USART_InitStructure.USART_Parity = USART_Parity_No;

USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;

USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

USART_InitStructure.USART_Clock = USART_Clock_Disable;

USART_InitStructure.USART_CPOL = USART_CPOL_Low;

USART_InitStructure.USART_CPHA = USART_CPHA_2Edge;

USART_InitStructure.USART_LastBit = USART_LastBit_Disable;

USART_Init(USART1, &USART_InitStructure);

/* Enable USART1 */

USART_Cmd(USART1, ENABLE);

}

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

* Function Name : fputc

* Description : Retargets the C library printf function to the USART.

* Input : None

* Output : None

* Return : None

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

int fputc(int ch, FILE *f)

{

/* Place your implementation of fputc here */

/* e.g. write a character to the USART */

USART_SendData(USART1, (u8) ch);

/* Loop until the end of transmission */

while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)

{

}

return ch;

}