/ 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 /

/这是我ADC_DMA配置及开启问题，请教大拿们帮忙指正原因在哪/