新手上路
- 积分
- 27
- 金钱
- 27
- 注册时间
- 2022-4-28
- 在线时间
- 5 小时
|
我也遇到了这个问题，谁能帮忙解决一下：/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file adc.c
* @brief This file provides code for the configuration
* of the ADC instances.
******************************************************************************
* @attention
*
* Copyright (c) 2026 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "adc.h"
/* USER CODE BEGIN 0 */
uint16_t adc_buffer[3]={0};
/* USER CODE END 0 */
/* ADC1 init function */
void MX_ADC1_Init(void)
{
/* USER CODE BEGIN ADC1_Init 0 */
/* USER CODE END ADC1_Init 0 */
LL_ADC_InitTypeDef ADC_InitStruct = {0};
LL_ADC_REG_InitTypeDef ADC_REG_InitStruct = {0};
LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
LL_RCC_SetADCClockSource(LL_RCC_ADC_CLKSOURCE_PLL);
/* Peripheral clock enable */
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_ADC);
LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOB);
/**ADC1 GPIO Configuration
PA0 ------> ADC1_IN0
PB2 ------> ADC1_IN10
PA12 [PA10] ------> ADC1_IN16
*/
GPIO_InitStruct.Pin = V_VBUS_Pin;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
LL_GPIO_Init(V_VBUS_GPIO_Port, &GPIO_InitStruct);
GPIO_InitStruct.Pin = BM_VBEMF_Pin;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
LL_GPIO_Init(BM_VBEMF_GPIO_Port, &GPIO_InitStruct);
GPIO_InitStruct.Pin = BM_CURR_Pin;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
LL_GPIO_Init(BM_CURR_GPIO_Port, &GPIO_InitStruct);
/* ADC1 DMA Init */
/* ADC1 Init */
LL_DMA_SetPeriphRequest(DMA1, LL_DMA_CHANNEL_1, LL_DMAMUX_REQ_ADC1);
LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_1, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PRIORITY_LOW);
LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_1, LL_DMA_MODE_CIRCULAR);
LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PERIPH_NOINCREMENT);
LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_1, LL_DMA_MEMORY_INCREMENT);
LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_1, LL_DMA_PDATAALIGN_HALFWORD);
LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_1, LL_DMA_MDATAALIGN_HALFWORD);
/* USER CODE BEGIN ADC1_Init 1 */
/* USER CODE END ADC1_Init 1 */
/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
#define ADC_CHANNEL_CONF_RDY_TIMEOUT_MS ( 1U)
#if (USE_TIMEOUT == 1) uint32_t Timeout ; /* Variable used for Timeout management */ #endif /* USE_TIMEOUT */
ADC_InitStruct.Resolution = LL_ADC_RESOLUTION_12B;
ADC_InitStruct.DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
ADC_InitStruct.LowPowerMode = LL_ADC_LP_MODE_NONE;
LL_ADC_Init(ADC1, &ADC_InitStruct);
LL_ADC_REG_SetSequencerConfigurable(ADC1, LL_ADC_REG_SEQ_FIXED);
ADC_REG_InitStruct.TriggerSource = LL_ADC_REG_TRIG_SOFTWARE;
ADC_REG_InitStruct.SequencerLength = LL_ADC_REG_SEQ_SCAN_DISABLE;
ADC_REG_InitStruct.ContinuousMode = LL_ADC_REG_CONV_CONTINUOUS;
ADC_REG_InitStruct.DMATransfer = LL_ADC_REG_DMA_TRANSFER_UNLIMITED;
ADC_REG_InitStruct.Overrun = LL_ADC_REG_OVR_DATA_OVERWRITTEN;
LL_ADC_REG_Init(ADC1, &ADC_REG_InitStruct);
LL_ADC_SetCommonClock(__LL_ADC_COMMON_INSTANCE(ADC1), LL_ADC_CLOCK_ASYNC_DIV8);
LL_ADC_REG_SetSequencerScanDirection(ADC1, LL_ADC_REG_SEQ_SCAN_DIR_FORWARD);
LL_ADC_SetOverSamplingScope(ADC1, LL_ADC_OVS_DISABLE);
LL_ADC_SetTriggerFrequencyMode(ADC1, LL_ADC_CLOCK_FREQ_MODE_HIGH);
LL_ADC_REG_SetSequencerChAdd(ADC1, LL_ADC_CHANNEL_0 |LL_ADC_CHANNEL_10 |LL_ADC_CHANNEL_16);
/* Poll for ADC channel configuration ready */
#if (USE_TIMEOUT == 1) Timeout = ADC_CHANNEL_CONF_RDY_TIMEOUT_MS; #endif /* USE_TIMEOUT */ while (LL_ADC_IsActiveFlag_CCRDY(ADC1) == 0)
{
#if (USE_TIMEOUT == 1) /* Check Systick counter flag to decrement the time-out value */ if (LL_SYSTICK_IsActiveCounterFlag()) { if(Timeout-- == 0) { Error_Handler(); } } #endif /* USE_TIMEOUT */ }
/* Clear flag ADC channel configuration ready */
LL_ADC_ClearFlag_CCRDY(ADC1);
LL_ADC_SetSamplingTimeCommonChannels(ADC1, LL_ADC_SAMPLINGTIME_COMMON_1, LL_ADC_SAMPLINGTIME_79CYCLES_5);
LL_ADC_DisableIT_EOC(ADC1);
LL_ADC_DisableIT_EOS(ADC1);
/* Enable ADC internal voltage regulator */
LL_ADC_EnableInternalRegulator(ADC1);
/* Delay for ADC internal voltage regulator stabilization. */
/* Compute number of CPU cycles to wait for, from delay in us. */
/* Note: Variable divided by 2 to compensate partially */
/* CPU processing cycles (depends on compilation optimization). */
/* Note: If system core clock frequency is below 200kHz, wait time */
/* is only a few CPU processing cycles. */
__IO uint32_t wait_loop_index;
wait_loop_index = ((LL_ADC_DELAY_INTERNAL_REGUL_STAB_US * (SystemCoreClock / (100000 * 2))) / 10);
while(wait_loop_index != 0)
{
wait_loop_index--;
}
/* USER CODE BEGIN ADC1_Init 2 */
// 1. 校准
LL_ADC_StartCalibration(ADC1);
while (LL_ADC_IsCalibrationOnGoing(ADC1));
LL_ADC_Enable(ADC1);
// 5. 启动转换
LL_ADC_REG_StartConversion(ADC1);
// 2. 使能ADC
// while (LL_ADC_IsActiveFlag_ADRDY(ADC1) == 0);
LL_ADC_REG_SetDMATransfer(ADC1, LL_ADC_REG_DMA_TRANSFER_UNLIMITED);
LL_DMA_SetPeriphAddress(DMA1, LL_DMA_CHANNEL_1,
LL_ADC_DMA_GetRegAddr(ADC1, LL_ADC_DMA_REG_REGULAR_DATA));
LL_DMA_SetMemoryAddress(DMA1, LL_DMA_CHANNEL_1, (uint32_t)&adc_buffer);
LL_DMA_SetDataLength(DMA1, LL_DMA_CHANNEL_1, 3);
LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_1);
/* USER CODE END ADC1_Init 2 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
|
|
/1 
|手机版|OpenEdv-开源电子网
( 粤ICP备12000418号-1 )
发表于 2012-7-28 21:36:26
发表于 2012-7-28 23:10:35
楼主
