Add 'stm32main.c'

stm32main.c

@@ -0,0 +1,585 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : main.c
+  * @brief          : Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2024 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 "main.h"
+#include <stdarg.h>
+#include "stdio.h"
+#include "string.h"
+#define INT_STATUS_1_REG  0x00
+#define MAX30102_ADDR (0x57 << 1)
+#define INT_STA1_REG 0x00
+#define INT_STA2_REG 0x01
+#define INT_ENA1_REG 0x02
+#define INT_ENA2_REG 0x03
+#define FIFO_WR_PTR 0x04
+#define FIFO_OVF_COUNT 0x05
+#define FIFO_RD_PTR 0x06
+#define FIFO_DATA_REG 0x07
+#define FIFO_CONFIG_REG 0x08
+#define MODE_CONFIG_REG 0x09
+#define SPO2_CONFIG_REG 0x0A
+#define LED_PULSE_AMPL_1 0x0C
+#define LED_PULSE_AMPL_2 0x0D
+#define MULTI_LED_CONTR_REG_1 0x11
+#define MULTI_LED_CONTR_REG_2 0x12
+
+// MAX30102 I2C Address
+#define MAX30102_WR_ADDR 0xAE
+#define MAX30102_RD_ADDR 0xAF
+#define PORT_USED 0
+#define HR_Mode 0x02 // Red LED only
+#define SpO2_Mode 0x03 // RED & IR LED
+#define MulitLED_Mode 0x07 // RED & IR LED
+#define THRESHOLD 1000
+#define SAMPLE_RATE 1000
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+int check=0;
+I2C_HandleTypeDef hi2c1;
+I2C_HandleTypeDef hi2c2;
+I2C_HandleTypeDef hi2c3;
+
+TIM_HandleTypeDef htim3;
+
+UART_HandleTypeDef huart2;
+
+int max30102_write_reg(uint8_t , uint8_t,I2C_HandleTypeDef );
+int max30102_init(uint8_t,I2C_HandleTypeDef x);
+void max30102_read_fifo_and_calculate_hr(I2C_HandleTypeDef );
+int max30102_read_register(uint8_t , uint8_t* , size_t ,I2C_HandleTypeDef );
+/* USER CODE BEGIN PV */
+void log_message(char *format, ...) {
+    char buffer[100];  // Adjust size as needed
+    va_list args;
+    va_start(args, format);
+    vsprintf(buffer, format, args);
+    va_end(args);
+
+    HAL_UART_Transmit(&huart2, (uint8_t*)buffer, strlen(buffer), HAL_MAX_DELAY);
+}
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+void SystemClock_Config(void);
+static void MX_GPIO_Init(void);
+static void MX_I2C1_Init(void);
+static void MX_I2C2_Init(void);
+static void MX_I2C3_Init(void);
+static void MX_USART2_UART_Init(void);
+static void MX_TIM3_Init(void);
+
+
+int max30102_write_reg(uint8_t reg , uint8_t value,I2C_HandleTypeDef x)
+{
+	uint8_t data[2];
+	 data[0] = reg;  // Register address
+	 data[1] = value; // Value to write
+	 HAL_StatusTypeDef ret;
+	 ret = HAL_I2C_Master_Transmit(&x, MAX30102_ADDR, data, sizeof(data), HAL_MAX_DELAY);
+	 if ( ret != HAL_OK ){
+		log_message("Not working write");
+		 return 0;
+	 }
+        return 1;
+}
+
+void max30102_read_fifo_and_calculate_hr(I2C_HandleTypeDef x)
+{
+	uint8_t  wr_ptr=0;  uint8_t rd_ptr=0;
+	 max30102_read_register(FIFO_WR_PTR, &wr_ptr, 1,x);
+     max30102_read_register(FIFO_RD_PTR, &rd_ptr, 1,x);
+
+		    uint8_t num_samples = (wr_ptr - rd_ptr);
+		    		if(num_samples<1)
+		    			num_samples=num_samples+32;
+
+		    for (int i = 0; i < num_samples; i++)
+		    {
+		        uint8_t sample[6];
+		        HAL_Delay(10);
+		        max30102_read_register(FIFO_DATA_REG, sample,6,x);
+
+		        //Extract only Red LED sample
+		        uint32_t red_sample = ((uint32_t)(sample[0] << 16) | (uint32_t)(sample[1] << 8) | (uint32_t)(sample[2])) & 0x3FFFF;
+
+		       log_message("%d,",red_sample);
+
+		    }
+
+}
+
+    int max30102_read_register(uint8_t reg, uint8_t* value, size_t length, I2C_HandleTypeDef x)
+    {
+    	HAL_StatusTypeDef    ret_code_t;
+
+        ret_code_t  = HAL_I2C_Master_Transmit(&x, MAX30102_ADDR, &reg, 1, HAL_MAX_DELAY);
+        if (ret_code_t != HAL_OK ) {
+        	log_message("Failed to set register address  Error code");
+            return 0;
+        }
+
+        ret_code_t= HAL_I2C_Master_Receive(&x, MAX30102_ADDR, value, length,HAL_MAX_DELAY);
+        if  (ret_code_t != HAL_OK ) {
+        	log_message("Failed to read data from MAX30102 register");
+            return 0;
+        }
+        return 1;
+    }
+
+
+    int max30102_init(uint8_t Mode, I2C_HandleTypeDef x)
+    {
+        if (!max30102_write_reg(INT_ENA1_REG, 0x00, x)) { // A_FULL=1, PPG_RDY_EN=0 ALC_OVF_EN=0 -> 0x80
+        	log_message("Failed to write INT_ENA1_REG");
+            return 0;
+        }
+        if (!max30102_write_reg(INT_ENA2_REG, 0x00,x)) { // DIE_TEMP_RDY_EN = 0
+        	log_message("Failed to write INT_ENA2_REG");
+            return 0;
+        }
+        if (!max30102_write_reg(FIFO_WR_PTR, 0x00,x)) {
+        	log_message("Failed to write FIFO_WR_PTR");
+            return 0;
+        }
+        if (!max30102_write_reg(FIFO_OVF_COUNT, 0x00,x)) {
+        	log_message("Failed to write FIFO_OVF_COUNT");
+            return 0;
+        }
+        if (!max30102_write_reg(FIFO_RD_PTR, 0x00,x)) {
+        	log_message("Failed to write FIFO_RD_PTR");
+            return 0;
+        }
+        if (!max30102_write_reg(FIFO_CONFIG_REG, 0xF0,x)) { // SMP_AVE=32(111), FIFO_ROLLOVER_EN=0, FIFO_A_FULL=32(0000) ->1110 0000=0xE0
+        	log_message("Failed to write FIFO_CONFIG_REG");
+            return 0;
+        }
+        if (!max30102_write_reg(MODE_CONFIG_REG, Mode,x)) {
+        	log_message("Failed to write MODE_CONFIG_REG");
+            return 0;
+        }
+        if (!max30102_write_reg(SPO2_CONFIG_REG, 0x27,x)) {
+        	log_message("Failed to write SPO2_CONFIG_REG");
+            return 0;
+        }
+        if (!max30102_write_reg(LED_PULSE_AMPL_1, 0x32,x)) { // IR-LED current = 10mA
+        	log_message("Failed to write LED_PULSE_AMPL_1");
+            return 0;
+        }
+        if (!max30102_write_reg(LED_PULSE_AMPL_2, 0x32,x)) { // RED-LED current = 10mA
+        	log_message("Failed to write LED_PULSE_AMPL_2");
+            return 0;
+        }
+
+        return 1;
+    }
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN PTD */
+
+/* USER CODE END PTD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* Private user code ---------------------------------------------------------*/
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/**
+  * @brief  The application entry point.
+  * @retval int
+  */
+int main(void)
+{
+
+  /* USER CODE BEGIN 1 */
+
+  /* USER CODE END 1 */
+
+  /* MCU Configuration--------------------------------------------------------*/
+
+  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
+  HAL_Init();
+
+  /* USER CODE BEGIN Init */
+
+  /* USER CODE END Init */
+
+  /* Configure the system clock */
+  SystemClock_Config();
+
+  /* USER CODE BEGIN SysInit */
+
+  /* USER CODE END SysInit */
+
+  /* Initialize all configured peripherals */
+  MX_GPIO_Init();
+  MX_I2C1_Init();
+  MX_I2C2_Init();
+  MX_I2C3_Init();
+  MX_USART2_UART_Init();
+  MX_TIM3_Init();
+  log_message("Place_your_hand");
+  HAL_Delay(2000);
+  max30102_init(SpO2_Mode,hi2c1);
+  max30102_init(SpO2_Mode,hi2c2);
+  max30102_init(SpO2_Mode,hi2c3);
+
+  HAL_TIM_Base_Start_IT(&htim3);
+  /* USER CODE BEGIN 2 */
+
+  /* USER CODE END 2 */
+void kappdata(){
+          max30102_read_fifo_and_calculate_hr(hi2c1);
+}
+
+void vatta(){
+		  max30102_read_fifo_and_calculate_hr(hi2c2);
+}
+
+void pitta(){
+         max30102_read_fifo_and_calculate_hr(hi2c3);
+}
+  /* Infinite loop */
+  /* USER CODE BEGIN WHILE */
+  while (1)
+  {
+	  if(check==0) kappdata();
+	  if(check==1) vatta();
+	  if(check==2) pitta();
+
+  }
+  /* USER CODE END 3 */
+}
+
+/**
+  * @brief System Clock Configuration
+  * @retval None
+  */
+void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+
+  /** Configure the main internal regulator output voltage
+  */
+  __HAL_RCC_PWR_CLK_ENABLE();
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
+
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
+  RCC_OscInitStruct.PLL.PLLM = 16;
+  RCC_OscInitStruct.PLL.PLLN = 336;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
+  RCC_OscInitStruct.PLL.PLLQ = 2;
+  RCC_OscInitStruct.PLL.PLLR = 2;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /** Initializes the CPU, AHB and APB buses clocks
+  */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+}
+
+/**
+  * @brief I2C1 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_I2C1_Init(void)
+{
+
+  /* USER CODE BEGIN I2C1_Init 0 */
+
+  /* USER CODE END I2C1_Init 0 */
+
+  /* USER CODE BEGIN I2C1_Init 1 */
+
+  /* USER CODE END I2C1_Init 1 */
+  hi2c1.Instance = I2C1;
+  hi2c1.Init.ClockSpeed = 100000;
+  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
+  hi2c1.Init.OwnAddress1 = 0;
+  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c1.Init.OwnAddress2 = 0;
+  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C1_Init 2 */
+
+  /* USER CODE END I2C1_Init 2 */
+
+}
+
+/**
+  * @brief I2C2 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_I2C2_Init(void)
+{
+
+  /* USER CODE BEGIN I2C2_Init 0 */
+
+  /* USER CODE END I2C2_Init 0 */
+
+  /* USER CODE BEGIN I2C2_Init 1 */
+
+  /* USER CODE END I2C2_Init 1 */
+  hi2c2.Instance = I2C2;
+  hi2c2.Init.ClockSpeed = 100000;
+  hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
+  hi2c2.Init.OwnAddress1 = 0;
+  hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c2.Init.OwnAddress2 = 0;
+  hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C2_Init 2 */
+
+  /* USER CODE END I2C2_Init 2 */
+
+}
+
+/**
+  * @brief I2C3 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_I2C3_Init(void)
+{
+
+  /* USER CODE BEGIN I2C3_Init 0 */
+
+  /* USER CODE END I2C3_Init 0 */
+
+  /* USER CODE BEGIN I2C3_Init 1 */
+
+  /* USER CODE END I2C3_Init 1 */
+  hi2c3.Instance = I2C3;
+  hi2c3.Init.ClockSpeed = 100000;
+  hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
+  hi2c3.Init.OwnAddress1 = 0;
+  hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c3.Init.OwnAddress2 = 0;
+  hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c3) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C3_Init 2 */
+
+  /* USER CODE END I2C3_Init 2 */
+
+}
+
+/**
+  * @brief TIM3 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_TIM3_Init(void)
+{
+
+  /* USER CODE BEGIN TIM3_Init 0 */
+
+  /* USER CODE END TIM3_Init 0 */
+
+  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
+  TIM_MasterConfigTypeDef sMasterConfig = {0};
+
+  /* USER CODE BEGIN TIM3_Init 1 */
+
+  /* USER CODE END TIM3_Init 1 */
+  htim3.Instance = TIM3;
+  htim3.Init.Prescaler = 8399;
+  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim3.Init.Period = 49999;
+  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
+  htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
+  if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
+  if (HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM3_Init 2 */
+
+  /* USER CODE END TIM3_Init 2 */
+
+}
+
+/**
+  * @brief USART2 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_USART2_UART_Init(void)
+{
+
+  /* USER CODE BEGIN USART2_Init 0 */
+
+  /* USER CODE END USART2_Init 0 */
+
+  /* USER CODE BEGIN USART2_Init 1 */
+
+  /* USER CODE END USART2_Init 1 */
+  huart2.Instance = USART2;
+  huart2.Init.BaudRate = 115200;
+  huart2.Init.WordLength = UART_WORDLENGTH_8B;
+  huart2.Init.StopBits = UART_STOPBITS_1;
+  huart2.Init.Parity = UART_PARITY_NONE;
+  huart2.Init.Mode = UART_MODE_TX_RX;
+  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
+  if (HAL_UART_Init(&huart2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN USART2_Init 2 */
+
+  /* USER CODE END USART2_Init 2 */
+
+}
+
+/**
+  * @brief GPIO Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_GPIO_Init(void)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+/* USER CODE BEGIN MX_GPIO_Init_1 */
+/* USER CODE END MX_GPIO_Init_1 */
+
+  /* GPIO Ports Clock Enable */
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  __HAL_RCC_GPIOH_CLK_ENABLE();
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+
+  /*Configure GPIO pin Output Level */
+  HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
+
+  /*Configure GPIO pin : B1_Pin */
+  GPIO_InitStruct.Pin = B1_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
+
+  /*Configure GPIO pin : LD2_Pin */
+  GPIO_InitStruct.Pin = LD2_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+  HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);
+
+/* USER CODE BEGIN MX_GPIO_Init_2 */
+/* USER CODE END MX_GPIO_Init_2 */
+}
+
+/* USER CODE BEGIN 4 */
+
+/* USER CODE END 4 */
+
+/**
+  * @brief  This function is executed in case of error occurrence.
+  * @retval None
+  */
+void Error_Handler(void)
+{
+  /* USER CODE BEGIN Error_Handler_Debug */
+  /* User can add his own implementation to report the HAL error return state */
+  __disable_irq();
+  while (1)
+  {
+  }
+  /* USER CODE END Error_Handler_Debug */
+}
+
+#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 CODE BEGIN 6 */
+  /* 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) */
+  /* USER CODE END 6 */
+}
+#endif /* USE_FULL_ASSERT */