2025-08-05 16:06:46 +08:00
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file adc.h
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* @brief This file contains all the function prototypes for
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* the adc.c file
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __ADC_H__
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#define __ADC_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/* USER CODE BEGIN Includes */
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2025-08-18 14:11:39 +08:00
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2026-02-07 13:29:07 +08:00
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#define ADC_TIMES 100 // 每次采样 100 次 (10ms)
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#define ADC_CHANNELS 5 // 5 通道：电压 + 3 档电流 + REF
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#define PACKET_HEADER_0 0xAA
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#define PACKET_HEADER_1 0x55
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// Rank1=PA5, Rank2=PA6, Rank3=PA7, Rank4=PB0, Rank5=PB1
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#define IDX_VOL 0
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#define IDX_LOW 1
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#define IDX_MID 2
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#define IDX_HIGH 3
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#define IDX_REF 4
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// Resistance values in ohms
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#define HIGH_CUR_RES 0.005f // 5 m ohm
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#define MID_CUR_RES 0.5f // 500 m ohm
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#define LOW_CUR_RES 50.0f // 50 ohm
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// 预先计算标度因子
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#define SCALE_LOW (3.0f / 4096.0f / 50.0f / LOW_CUR_RES * 1000000.0) // uA
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#define SCALE_MID (3.0f / 4096.0f / 50.0f / MID_CUR_RES * 1000000.0) // uA
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#define SCALE_HIGH (3.0f / 4096.0f / 50.0f / HIGH_CUR_RES * 1000000.0) // uA
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// 量程阈值
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#define THRESH_HIGH 4000-2048 // 对应550uA 50mA
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#define THRESH_LOW 15 // 对应大概450uA 45mA
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// 次数
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#define THRESH_TIMES 8
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// 监视器更新频率和对应的采样点数量
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#define MONITOR_UPDATE_PERIOD_MS 250
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#define MONITOR_UPDATE_CHUNK_COUNT (MONITOR_UPDATE_PERIOD_MS / 10)
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/* --- USB 数据包结构 (总长 711 字节) --- */
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#pragma pack(push, 1) // 强制 1 字节对齐
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2025-08-18 14:11:39 +08:00
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typedef struct {
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2026-02-07 13:29:07 +08:00
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uint8_t header[2]; // 0x55, 0xAA
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uint64_t timestamp; // 64位微秒级时间戳
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uint8_t data_count; // 固定 100
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struct {
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uint8_t range; // 量程: 0=Low, 1=Mid, 2=High
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uint16_t vol_adc; // 电压
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uint16_t cur_adc; // 电流 (选择后)
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uint16_t ref_adc; // 参考电压
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} samples[ADC_TIMES];
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2025-08-18 14:11:39 +08:00
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2026-02-07 13:29:07 +08:00
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} USB_ADC_Packet_t;
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#pragma pack(pop)
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/* --- 统计监视器结构体 --- */
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typedef struct {
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/* * 累加和使用 64 位整数，防止溢出并保持精度
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* sum_cur_resolution_10na: 用户要求的 uA*100，即分辨率 0.01uA (10nA)
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* sum_vol_mv: 电压为了保持精度累加 mV，Get时再转 V
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*/
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volatile int64_t sum_cur_resolution_10na;
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volatile int64_t sum_vol_mv;
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volatile uint32_t count;
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volatile float avg_vol_v;
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volatile float avg_cur_ua;
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} Data_Monitor_t;
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// 原始 DMA 缓冲区 [200][5]
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extern uint16_t adc_raw_buffer[ADC_TIMES * 2][ADC_CHANNELS];
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2025-08-18 14:11:39 +08:00
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2025-08-05 16:06:46 +08:00
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/* USER CODE END Includes */
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extern ADC_HandleTypeDef hadc1;
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/* USER CODE BEGIN Private defines */
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/* USER CODE END Private defines */
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void MX_ADC1_Init(void);
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/* USER CODE BEGIN Prototypes */
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2026-02-07 13:29:07 +08:00
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void Data_Monitor_Get_Values(float *out_vol_v, float *out_cur_ua);
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void Data_Monitor_Clear(void);
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2025-08-05 16:06:46 +08:00
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/* USER CODE END Prototypes */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ADC_H__ */
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