320 lines
8.4 KiB
C
320 lines
8.4 KiB
C
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2023 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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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "adc.h"
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#include "dac.h"
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#include "dma.h"
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#include "tim.h"
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#include "usart.h"
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#include "gpio.h"
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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include "arm_math.h"
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/* USER CODE END Includes */
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/* Private typedef -----------------------------------------------------------*/
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/* USER CODE BEGIN PTD */
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#define DATA_LEN 2048
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uint32_t result_data[DATA_LEN];
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//float32_t rms_buf[DATA_LEN];
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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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/* USER CODE END PD */
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PM */
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/* USER CODE END PM */
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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arm_rfft_fast_instance_f32 S;
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float32_t fft_rawdata[DATA_LEN];
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float32_t fft_outdata[DATA_LEN];
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float32_t fft_mag[DATA_LEN>>1];
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float32_t window_data[DATA_LEN];
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float32_t Vdc= 0;
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float32_t V50hz_mA=0;
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//float32_t offset= 0;
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float32_t max_val,main_freq;
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float32_t rms_mV,rms_mA,Vpp;
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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/* USER CODE BEGIN PFP */
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void arm_hanning_f32(float32_t * pDst,uint32_t blockSize)
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{
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float32_t k = 2.0f / ((float32_t) blockSize);
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float32_t w;
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for(uint32_t i=0;i<blockSize;i++)
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{
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w = PI * i * k;
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w = 0.5f * (1.0f - cosf (w));
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pDst[i] = w;
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}
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}
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void Cur_sensor_pwr_on(void)
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{
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HAL_GPIO_WritePin(GPIOC, SENSOR_PWR_CTRL_Pin, GPIO_PIN_SET);
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HAL_Delay(1);
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// init dac
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HAL_DAC_SetValue(&hdac1,DAC_CHANNEL_1,DAC_ALIGN_12B_R,2048);
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// 延时等待模拟部分启动稳定。具体延时等待测试待测试。
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HAL_Delay(800);
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}
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void Cur_sensor_pwr_off(void)
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{
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// init dac
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HAL_DAC_SetValue(&hdac1,DAC_CHANNEL_1,DAC_ALIGN_12B_R,0);
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//HAL_DAC_Stop(&hdac1,DAC_CHANNEL_1);
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//HAL_DAC_SetValue(&hdac1,DAC_CHANNEL_1,DAC_ALIGN_12B_R,2048);
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//HAL_Delay(1);
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HAL_GPIO_WritePin(GPIOC, SENSOR_PWR_CTRL_Pin, GPIO_PIN_RESET);
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}
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void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
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{
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uint32_t i;
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// 关闭模拟电路电源
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//Cur_sensor_pwr_off();
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//float32_t max_val,main_freq;
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uint32_t max_val_freq;
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for(i = 0;i<DATA_LEN;i++)
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{
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// 加窗
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fft_rawdata[i]= (float32_t)result_data[i]*window_data[i];
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}
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//arm_rms_f32(fft_rawdata,DATA_LEN,&rms_mV);
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//arm_q15_to_float(result_data,fft_rawdata,DATA_LEN);
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arm_rfft_fast_f32(&S,fft_rawdata,fft_outdata,0);
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arm_cmplx_mag_f32(fft_outdata,fft_mag,DATA_LEN>>1);
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arm_scale_f32(fft_mag,4.0f/DATA_LEN,fft_mag,DATA_LEN>>1);
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Vdc = fft_mag[0]/2.0f;
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arm_max_f32(&fft_mag[5],(DATA_LEN>>2)-1,&max_val,&max_val_freq);
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main_freq = ((float32_t)max_val_freq+5.0)/DATA_LEN*2000.0;
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// 单独50Hz频率信号的有效值 无需归零校准
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V50hz_mA = fft_mag[51]/4096.0*3300.0f*0.0380/1.414;
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// 信号频率为50Hz左右
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// if(main_freq<75.0f && main_freq>35.0f)
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// {
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for(i = 0;i<DATA_LEN;i++)
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{
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fft_rawdata[i]= result_data[i]-Vdc;
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}
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// 去除直流信号后，标准方式计算有效值，此数据容易受噪声影响，有底噪RMS?
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arm_rms_f32(fft_rawdata,DATA_LEN,&rms_mV);
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rms_mV = rms_mV/4096.0*3300.0f;
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// 300匝 交流互感 0.0380
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// 350匝 交流互感 0.04412
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rms_mA = rms_mV*0.0380;
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// }else
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// {
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// //rms_mV = 0;
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// /// rms_mA = 0;
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// }
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}
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/* USER CODE END PFP */
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/* Private user code ---------------------------------------------------------*/
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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/**
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* @brief The application entry point.
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* @retval int
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*/
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/* MCU Configuration--------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
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/* USER CODE BEGIN Init */
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/* USER CODE END Init */
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/* Configure the system clock */
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SystemClock_Config();
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/* USER CODE BEGIN SysInit */
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arm_rfft_fast_init_f32(&S, DATA_LEN);
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arm_hanning_f32(window_data,DATA_LEN);
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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_DMA_Init();
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MX_ADC1_Init();
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MX_USART1_UART_Init();
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MX_USART3_UART_Init();
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MX_TIM6_Init();
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MX_DAC1_Init();
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/* USER CODE BEGIN 2 */
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// HAL_PWREx_EnterSTOP0Mode(PWR_STOPENTRY_WFI);
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HAL_PWREx_EnableBatteryCharging(PWR_BATTERY_CHARGING_RESISTOR_1_5);
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HAL_ADCEx_Calibration_Start(&hadc1,ADC_SINGLE_ENDED);
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// 模拟电路电源没开之前 dac输出0 保证不会串电流
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HAL_DAC_Start(&hdac1,DAC_CHANNEL_1);
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// 开启缓冲后 设置为0 实测有40mV左右电压 猜测和缓冲器Vos有关
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HAL_DAC_SetValue(&hdac1,DAC_CHANNEL_1,DAC_ALIGN_12B_R,0);
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// 开启模拟电路电源，抬参考源
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Cur_sensor_pwr_on();
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HAL_ADC_Start_DMA(&hadc1,(uint32_t *)result_data,DATA_LEN);
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HAL_TIM_Base_Start(&htim6);
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//HAL_Delay(500);
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/* USER CODE END 2 */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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while (1)
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{
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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// HAL_DAC_SetValue(&hdac1,DAC_CHANNEL_1,DAC_ALIGN_12B_R,2048);
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//HAL_ADC_Start_DMA(&hadc1,(uint32_t *)result_data,DATA_LEN);
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// HAL_GPIO_TogglePin(GPIO_LED_GPIO_Port, GPIO_LED_Pin);
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HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON,PWR_SLEEPENTRY_WFI);
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// HAL_TIM_Base_Start(&htim6);
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}
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/* USER CODE END 3 */
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}
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/**
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* @brief System Clock Configuration
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Configure the main internal regulator output voltage
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*/
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if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE2) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSE;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/* USER CODE BEGIN 4 */
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/* USER CODE END 4 */
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/**
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler_Debug */
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/* User can add his own implementation to report the HAL error return state */
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__disable_irq();
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while (1)
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{
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}
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/* USER CODE END Error_Handler_Debug */
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* USER CODE END 6 */
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}
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#endif /* USE_FULL_ASSERT */
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