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官方的stm32cube软件教程实例ADC操作代码(官方自带的，可以无视)，看不懂怎么用的可以等本贴吧更新图片教程，现在就是凑帖子数量，完成转职的，请谅解！

/**

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

* @file ADC/ADC_RegularConversion_Polling/Src/main.c

* @author MCD Application Team

* @version V1.0.1

* @date 26-February-2014

* @brief This example describes how to use Polling mode to convert data.

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

* @attention

*

*

© COPYRIGHT(c) 2014 STMicroelectronics

*

* Redistribution and use in source and binary forms, with or without modification,

* are permitted provided that the following conditions are met:

* 1. Redistributions of source code must retain the above copyright notice,

* this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright notice,

* this list of conditions and the following disclaimer in the documentation

* and/or other materials provided with the distribution.

* 3. Neither the name of STMicroelectronics nor the names of its contributors

* may be used to endorse or promote products derived from this software

* without specific prior written permission.

*

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*

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

*/

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

#include "main.h"

/** @addtogroup STM32F4xx_HAL_Examples

* @{

*/

/** @addtogroup ADC_RegularConversion_Polling

* @{

*/

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

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

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

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

/* ADC handler declaration */

ADC_HandleTypeDef AdcHandle;

/* Variable used to get converted value */

__IO uint16_t uhADCxConvertedValue = 0;

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

static void SystemClock_Config(void);

static void Error_Handler(void);

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

/**

* @brief Main program.

* @param None

* @retval None

*/

int main(void)

{

ADC_ChannelConfTypeDef sConfig;

/* STM32F4xx HAL library initialization:

- Configure the Flash prefetch, instruction and Data caches

- Configure the Systick to generate an interrupt each 1 msec

- Set NVIC Group Priority to 4

- Global MSP (MCU Support Package) initialization

*/

HAL_Init();

/* Configure the system clock to 144 Mhz */

SystemClock_Config();

/* Configure LED3 */

BSP_LED_Init(LED3);

/*##-1- Configure the ADC peripheral #######################################*/

AdcHandle.Instance = ADCx;

AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV2;

AdcHandle.Init.Resolution = ADC_RESOLUTION12b;

AdcHandle.Init.ScanConvMode = DISABLE;

AdcHandle.Init.ContinuousConvMode = DISABLE;

AdcHandle.Init.DiscontinuousConvMode = DISABLE;

AdcHandle.Init.NbrOfDiscConversion = 0;

AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;

AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1;

AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;

AdcHandle.Init.NbrOfConversion = 1;

AdcHandle.Init.DMAContinuousRequests = DISABLE;

AdcHandle.Init.EOCSelection = DISABLE;

if(HAL_ADC_Init(&AdcHandle) != HAL_OK)

{

/* Initialization Error */

Error_Handler();

}

/*##-2- Configure ADC regular channel ######################################*/

sConfig.Channel = ADCx_CHANNEL;

sConfig.Rank = 1;

sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;

sConfig.Offset = 0;

if(HAL_ADC_ConfigChannel(&AdcHandle, &sConfig) != HAL_OK)

{

/* Channel Configuration Error */

Error_Handler();

}

/*##-3- Start the conversion process #######################################*/

if(HAL_ADC_Start(&AdcHandle) != HAL_OK)

{

/* Start Conversation Error */

Error_Handler();

}

/*##-4- Wait for the end of conversion #####################################*/

/* Before starting a new conversion, you need to check the current state of

the peripheral; if it抯 busy you need to wait for the end of current

conversion before starting a new one.

For simplicity reasons, this example is just waiting till the end of the

conversion, but application may perform other tasks while conversion

operation is ongoing. */

HAL_ADC_PollForConversion(&AdcHandle, 10);

/* Check if the continous conversion of regular channel is finished */

if(HAL_ADC_GetState(&AdcHandle) == HAL_ADC_STATE_EOC_REG)

{

/*##-5- Get the converted value of regular channel ########################*/

uhADCxConvertedValue = HAL_ADC_GetValue(&AdcHandle);

}

/* Infinite loop */

while(1)

{

}

}

/**

* @brief System Clock Configuration

* The system Clock is configured as follow :

* System Clock source = PLL (HSE)

* SYSCLK(Hz) = 144000000

* HCLK(Hz) = 144000000

* AHB Prescaler = 1

* APB1 Prescaler = 4

* APB2 Prescaler = 2

* HSE Frequency(Hz) = 25000000

* PLL_M = 25

* PLL_N = 288

* PLL_P = 2

* PLL_Q = 6

* VDD(V) = 3.3

* Main regulator output voltage = Scale2 mode

* Flash Latency(WS) = 5

* @param None

* @retval None

*/

static void SystemClock_Config(void)

{

RCC_ClkInitTypeDef RCC_ClkInitStruct;

RCC_OscInitTypeDef RCC_OscInitStruct;

/* Enable Power Control clock */

__PWR_CLK_ENABLE();

/* The voltage scaling allows optimizing the power consumption when the device is

clocked below the maximum system frequency, to update the voltage scaling value

regarding system frequency refer to product datasheet. */

__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);

/* Enable HSE Oscillator and activate PLL with HSE as source */

RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;

RCC_OscInitStruct.HSEState = RCC_HSE_ON;

RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;

RCC_OscInitStruct.PLL.PLLM = 25;

RCC_OscInitStruct.PLL.PLLN = 288;

RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;

RCC_OscInitStruct.PLL.PLLQ = 6;

HAL_RCC_OscConfig(&RCC_OscInitStruct);

/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2

clocks dividers */

RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);

RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;

RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;

RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);

}

/**

* @brief This function is executed in case of error occurrence.

* @param None

* @retval None

*/

static void Error_Handler(void)

{

/* Turn LED3 on */

BSP_LED_On(LED3);

while(1)

{

}

}

#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 STMicroelectronics *****END OF FILE****/