我想实现ADC1，ADC3同时采样多通道，现在结果是ADC1没有结果，ADC3的5个通道结果是一样的？请帮忙看看？
/**
******************************************************************************
* @file DCMI/OV9655_Camera/main.c
* @author MCD Application Team
* @version V1.0.0
* @date 18-April-2011
* @brief Main program body
******************************************************************************
* @attention
*
* 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.
*
* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include <stdio.h>
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
#define ADC1_DR_ADDRESS ((uint32_t)0x4001244C)
#define ADC3_DR_ADDRESS ((uint32_t)0x4001224C)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint16_t ADC1ConvertedValue[3];
__IO uint32_t ADC1ConvertedVoltage[3];
__IO uint16_t ADC3ConvertedValue[5];
__IO uint32_t ADC3ConvertedVoltage[5];
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void ADC1_CH8_9_16_DMA_Config(void);
void ADC3_CH7_DMA_Config(void);
void Display_Init(void);
void Display(void);
uint8_t NumCode[4];
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define _X(s) (239 - s)
#define _Y(s) (319 - s)
#define FSMC_LCD_ADDRESS 0x64000002
/*: 第一块:6000 0000h--63ff ffffh
第二块:6400 0000h--67ff ffffh
第三块:6800 0000h--6bff ffffh
第四块:6c00 0000h--6fff ffffh*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static __IO uint32_t TimingDelay;
RCC_ClocksTypeDef RCC_Clocks;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* Initialize LEDs on STM322xG-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
STM_EVAL_LEDOff(LED1);
STM_EVAL_LEDOff(LED2);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED4);
/* SysTick end of count event each 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
/* Configure FSMC Bank 1 NOR/SRAM1 */
SRAM_Init(); //使用液晶屏之前需要调用该函数以初始化FSMC
/* LCD Display init */
Display_Init();
/* ADC3 configuration *******************************************************/
/* - Enable peripheral clocks */
/* - DMA2_Stream0 channel2 configuration */
/* - Configure ADC Channel7 pin as analog input */
/* - Configure ADC3 Channel7 */
ADC1_CH8_9_16_DMA_Config();
//ADC3_CH7_DMA_Config();
/* Start ADC3 Software Conversion */
ADC_SoftwareStartConv(ADC1);
//ADC_SoftwareStartConv(ADC3);
while (1)
{
/* Display ADC converted value on LCD */
Display();
}
}
/**
* @brief ADC3 channel07 with DMA configuration
* @param None
* @retval None
*/
void ADC1_CH8_9_16_DMA_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable ADC1, DMA2 and GPIO clocks ****************************************/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* DMA2 Stream0 channel0 configuration **************************************/
DMA_InitStructure.DMA_Channel = DMA_Channel_0;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1_DR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADC1ConvertedValue;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 3;
//DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
//DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
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_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream0, ENABLE);
/* Configure ADC1 Channel_8_9_16 pin as analog input ******************************/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* ADC Common Init **********************************************************/
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
/* ADC1 Init ****************************************************************/
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
//ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ScanConvMode =ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 3;
ADC_Init(ADC1, &ADC_InitStructure);
//ADC内置温度传感器使能（要使用片内温度传感器，切忌要开启它）
ADC_TempSensorVrefintCmd(ENABLE);
/* ADC1 regular channel8_9_16 configuration *************************************/
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 2, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC1, ADC_Channel_16,3, ADC_SampleTime_480Cycles);
ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);
/* Enable ADC1 DMA */
ADC_DMACmd(ADC1, ENABLE);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
}
/**
* @brief ADC3 channel07 with DMA configuration
* @param None
* @retval None
*/
void ADC3_CH7_DMA_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable ADC3, DMA2 and GPIO clocks ****************************************/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOF, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC3, ENABLE);
/* DMA2 Stream0 channel2 configuration **************************************/
DMA_InitStructure.DMA_Channel = DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC3_DR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADC3ConvertedValue;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 5;
//DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
//DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
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_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
//DMA_Init(DMA2_Stream0, &DMA_InitStructure);
//DMA_Cmd(DMA2_Stream0, ENABLE);
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream1, ENABLE);
/* Configure ADC3 Channel6 pin as analog input ******************************/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOF, &GPIO_InitStructure);
/* ADC Common Init **********************************************************/
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
/* ADC3 Init ****************************************************************/
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
//ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ScanConvMode =ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 5;
ADC_Init(ADC3, &ADC_InitStructure);
/* ADC3 regular channel7 configuration *************************************/
ADC_RegularChannelConfig(ADC3, ADC_Channel_4, 1, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC3, ADC_Channel_5, 2, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC3, ADC_Channel_6, 3, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC3, ADC_Channel_7, 4, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC3, ADC_Channel_8, 5, ADC_SampleTime_3Cycles);
/* Enable DMA request after last transfer (Single-ADC mode) */
ADC_DMARequestAfterLastTransferCmd(ADC3, ENABLE);
/* Enable ADC3 DMA */
ADC_DMACmd(ADC3, ENABLE);
/* Enable ADC3 */
ADC_Cmd(ADC3, ENABLE);
}
/**
* @brief Display ADC converted value on LCD
* @param None
* @retval None
*/
void SendDisp(uint16_t Ch)
{
NumCode[0]=Ch/1000;
NumCode[1]=Ch%1000/100;
NumCode[2]=Ch%100/10;
NumCode[3]=Ch%10;
}
//---------------------------------------------------
void Display()
{
uint8_t k;
uint8_t Text[5][40];
LCD_SetFont(&Font16x24);
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
for(k=0;k<5;k++)
{
ADC3ConvertedVoltage[k]=(ADC3ConvertedValue[k]>> 4) *3300/0xFFF;
//ADC3ConvertedValue[k]=0;
SendDisp(ADC3ConvertedVoltage[k]);
sprintf((char*)Text[k],"ADC3=%d.%d%d%dV",NumCode[0],NumCode[1],NumCode[2],NumCode[3]);
LCD_DisplayStringLine(LINE(4+k),Text[k]);
}
LCD_SetFont(&Font16x24);
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
for(k=0;k<3;k++)
{
ADC1ConvertedVoltage[k]=(ADC1ConvertedValue[k]>> 4) *3300/0xFFF;
SendDisp(ADC1ConvertedVoltage[k]);
sprintf((char*)Text[k],"ADC1=%d.%d%d%dV",NumCode[0],NumCode[1],NumCode[2],NumCode[3]);
LCD_DisplayStringLine(LINE(1+k),Text[k]);
}
}
/**
* @brief Display Init (LCD)
* @param None
* @retval None
*/
void Display_Init(void)
{
/* Initialize the LCD */
STM322xG_LCD_Init();
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Text size */
LCD_SetFont(&Font8x12);
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
/* Display */
LCD_DisplayStringLine(LINE(0x13), " ADC conversion w/ DMA transfer example ");
/* Set the LCD Text size */
LCD_SetFont(&Font16x24);
/* Display */
LCD_DisplayStringLine(LINE(0), "ADC Conversion @2Msps");
/* Set the LCD Back Color and Text Color*/
//LCD_SetBackColor(White);
//LCD_SetTextColor(Blue);
/* Display */
//LCD_DisplayStringLine(LINE(2)," Input Pin : PF8 ");
/*LCD_DisplayStringLine(LINE(4)," Sampling Voltage: ");*/
}
/**
* @brief Configures the SPI Peripheral.
* @param None
* @retval None
*/
/**
* @brief Inserts a delay time.
* @param nTime: specifies the delay time length, in milliseconds
* @retval None
*/
void Delay(uint32_t nTime)
{
TimingDelay = nTime;
while(TimingDelay != 0);
}
/**
* @brief Decrements the TimingDelay variable.
* @param None
* @retval None
*/
void TimingDelay_Decrement(void)
{
if (TimingDelay != 0x00)
{
TimingDelay--;
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t 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 2011 STMicroelectronics *****END OF FILE****/ |
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