620 lines
16 KiB
C
620 lines
16 KiB
C
/* 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) 2024 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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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include <stdbool.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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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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uint8_t i2c_register;
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#define I2C_REGISTER_DELTA 1
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#define I2C_REGISTER_WIRES 2
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#define I2C_REGISTER_BUTTON 3
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#define I2C_REGISTER_RELAY_BUZZ 4
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#define I2C_REGISTER_LED 5
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#define I2C_REGISTER_ISSUE_STRIKE 6
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#define I2C_REGISTER_STRIKE_BUZZ_LEN 7
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#define I2C_REGISTER_STRIKE_RELAY_LEN 8
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#define BUZZ_BIT_IDX 0
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#define RELAY_BIT_IDX 1
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#define DELTA_BIT_WIRES 0
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#define DELTA_BIT_BUTTON 1
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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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I2C_HandleTypeDef hi2c1;
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UART_HandleTypeDef huart2;
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/* USER CODE BEGIN PV */
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uint8_t old_delta;
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uint8_t delta;
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uint8_t old_wires;
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uint8_t wires;
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uint8_t old_button;
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uint8_t button;
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uint8_t old_relay_buzz;
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uint8_t relay_buzz;
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uint8_t old_leds = 0;
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uint8_t leds = 0;
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uint16_t strike_buzz_len = 500;
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uint16_t strike_relay_len = 1000;
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bool strike_issued;
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uint32_t strike_at;
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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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static void MX_GPIO_Init(void);
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static void MX_I2C1_Init(void);
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static void MX_USART2_UART_Init(void);
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/* USER CODE BEGIN PFP */
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#ifdef __GNUC__
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/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
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set to 'Yes') calls __io_putchar() */
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#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
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#else
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#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
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#endif /* __GNUC__ */
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void send_interupt(void);
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void send_register(void);
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void recv_register(void);
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void init_interupt(void);
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void init_leds(void);
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void init_relay_buzz(void);
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void scan_wires(void);
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void scan_button(void);
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void set_relay_buzz(void);
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void set_leds(void);
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void handle_strike(void);
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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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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_I2C1_Init();
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MX_USART2_UART_Init();
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/* USER CODE BEGIN 2 */
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HAL_I2C_EnableListen_IT(&hi2c1);
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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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scan_wires();
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scan_button();
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handle_strike();
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set_relay_buzz();
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set_leds();
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send_interupt();
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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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HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
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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_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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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;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/**
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* @brief I2C1 Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_I2C1_Init(void)
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{
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/* USER CODE BEGIN I2C1_Init 0 */
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/* USER CODE END I2C1_Init 0 */
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/* USER CODE BEGIN I2C1_Init 1 */
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/* USER CODE END I2C1_Init 1 */
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hi2c1.Instance = I2C1;
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hi2c1.Init.Timing = 0x00303D5B;
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hi2c1.Init.OwnAddress1 = 250;
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hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
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hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
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hi2c1.Init.OwnAddress2 = 0;
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hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
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hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
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hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
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if (HAL_I2C_Init(&hi2c1) != HAL_OK)
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{
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Error_Handler();
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}
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/** Configure Analogue filter
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*/
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if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
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{
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Error_Handler();
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}
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/** Configure Digital filter
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*/
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if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN I2C1_Init 2 */
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/* USER CODE END I2C1_Init 2 */
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}
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/**
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* @brief USART2 Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_USART2_UART_Init(void)
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{
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/* USER CODE BEGIN USART2_Init 0 */
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/* USER CODE END USART2_Init 0 */
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/* USER CODE BEGIN USART2_Init 1 */
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/* USER CODE END USART2_Init 1 */
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huart2.Instance = USART2;
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huart2.Init.BaudRate = 115200;
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huart2.Init.WordLength = UART_WORDLENGTH_8B;
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huart2.Init.StopBits = UART_STOPBITS_1;
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huart2.Init.Parity = UART_PARITY_NONE;
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huart2.Init.Mode = UART_MODE_TX_RX;
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huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart2.Init.OverSampling = UART_OVERSAMPLING_16;
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huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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huart2.Init.ClockPrescaler = UART_PRESCALER_DIV1;
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huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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if (HAL_UART_Init(&huart2) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetTxFifoThreshold(&huart2, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetRxFifoThreshold(&huart2, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_DisableFifoMode(&huart2) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART2_Init 2 */
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/* USER CODE END USART2_Init 2 */
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}
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/**
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* @brief GPIO Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_GPIO_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* USER CODE BEGIN MX_GPIO_Init_1 */
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/* USER CODE END MX_GPIO_Init_1 */
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/* GPIO Ports Clock Enable */
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOF_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(LED2_GPIO_Port, LED2_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(GPIOA, LED3_Pin|HELP_BTN_Pin|INT_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(GPIOB, RELAY1_Pin|RELAY2_Pin|BUZZ_Pin|LED4_Pin
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|LED1_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin : LED2_Pin */
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GPIO_InitStruct.Pin = LED2_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(LED2_GPIO_Port, &GPIO_InitStruct);
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/*Configure GPIO pins : LED3_Pin HELP_BTN_Pin INT_Pin */
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GPIO_InitStruct.Pin = LED3_Pin|HELP_BTN_Pin|INT_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/*Configure GPIO pins : WIRE8_Pin WIRE7_Pin WIRE6_Pin WIRE5_Pin */
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GPIO_InitStruct.Pin = WIRE8_Pin|WIRE7_Pin|WIRE6_Pin|WIRE5_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/*Configure GPIO pins : WIRE4_Pin WIRE3_Pin WIRE2_Pin WIRE1_Pin */
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GPIO_InitStruct.Pin = WIRE4_Pin|WIRE3_Pin|WIRE2_Pin|WIRE1_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/*Configure GPIO pins : RELAY1_Pin RELAY2_Pin BUZZ_Pin LED4_Pin
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LED1_Pin */
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GPIO_InitStruct.Pin = RELAY1_Pin|RELAY2_Pin|BUZZ_Pin|LED4_Pin
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|LED1_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* USER CODE BEGIN MX_GPIO_Init_2 */
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/* USER CODE END MX_GPIO_Init_2 */
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}
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/* USER CODE BEGIN 4 */
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PUTCHAR_PROTOTYPE
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{
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/* Place your implementation of fputc here */
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/* e.g. write a character to the USART1 and Loop until the end of transmission */
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HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, 0xFFFF);
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return ch;
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}
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bool has_received_data;
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void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c)
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{
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i2c_register = 0;
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has_received_data = false;
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HAL_I2C_EnableListen_IT(hi2c);
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}
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void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode) {
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if (TransferDirection == I2C_DIRECTION_TRANSMIT) {
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HAL_I2C_Slave_Seq_Receive_IT(hi2c, &i2c_register, 1, I2C_NEXT_FRAME);
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} else {
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send_register();
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}
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}
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uint8_t send_data[2];
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void send_register(void) {
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switch (i2c_register) {
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case I2C_REGISTER_DELTA:
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, &delta, 1, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_WIRES:
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, &wires, 1, I2C_NEXT_FRAME);
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delta &= ~(1 << DELTA_BIT_WIRES);
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break;
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case I2C_REGISTER_BUTTON:
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, &button, 1, I2C_NEXT_FRAME);
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delta &= ~(1 << DELTA_BIT_BUTTON);
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break;
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case I2C_REGISTER_RELAY_BUZZ:
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, &relay_buzz, 1, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_LED:
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, &leds, 1, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_STRIKE_BUZZ_LEN:
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send_data[0] = strike_buzz_len & 0xFF;
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send_data[1] = strike_buzz_len >> 8;
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, send_data, 2, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_STRIKE_RELAY_LEN:
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send_data[0] = strike_relay_len & 0xFF;
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send_data[1] = strike_relay_len >> 8;
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HAL_I2C_Slave_Seq_Transmit_IT(&hi2c1, send_data, 2, I2C_NEXT_FRAME);
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break;
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default:
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break;
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}
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}
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uint8_t recv_data[2];
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void recv_register(void) {
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switch (i2c_register) {
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case I2C_REGISTER_RELAY_BUZZ:
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HAL_I2C_Slave_Seq_Receive_IT(&hi2c1, &relay_buzz, 1, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_LED:
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HAL_I2C_Slave_Seq_Receive_IT(&hi2c1, &leds, 1, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_STRIKE_BUZZ_LEN:
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HAL_I2C_Slave_Seq_Receive_IT(&hi2c1, recv_data, 2, I2C_NEXT_FRAME);
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break;
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case I2C_REGISTER_STRIKE_RELAY_LEN:
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HAL_I2C_Slave_Seq_Receive_IT(&hi2c1, recv_data, 2, I2C_NEXT_FRAME);
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break;
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default:
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break;
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}
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has_received_data = true;
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}
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void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c)
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{
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if (i2c_register == I2C_REGISTER_ISSUE_STRIKE) {
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strike_issued = true;
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}
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if (has_received_data) {
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has_received_data = false;
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// reconstruct anything that needs to be reconstructed
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switch (i2c_register) {
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case I2C_REGISTER_STRIKE_BUZZ_LEN:
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strike_buzz_len = recv_data[0];
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strike_buzz_len |= ((uint16_t) recv_data[1]) << 8;
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break;
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case I2C_REGISTER_STRIKE_RELAY_LEN:
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strike_relay_len = recv_data[0];
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strike_relay_len |= ((uint16_t) recv_data[1]) << 8;
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break;
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default:
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break;
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}
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} else {
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recv_register();
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}
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}
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void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c)
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{
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}
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void scan_wires(void)
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{
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old_wires = wires;
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uint8_t new_wires = 0;
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new_wires |= (HAL_GPIO_ReadPin(WIRE1_GPIO_Port, WIRE1_Pin) == GPIO_PIN_RESET) << 0;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE2_GPIO_Port, WIRE2_Pin) == GPIO_PIN_RESET) << 1;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE3_GPIO_Port, WIRE3_Pin) == GPIO_PIN_RESET) << 2;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE4_GPIO_Port, WIRE4_Pin) == GPIO_PIN_RESET) << 3;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE5_GPIO_Port, WIRE5_Pin) == GPIO_PIN_RESET) << 4;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE6_GPIO_Port, WIRE6_Pin) == GPIO_PIN_RESET) << 5;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE7_GPIO_Port, WIRE7_Pin) == GPIO_PIN_RESET) << 6;
|
|
new_wires |= (HAL_GPIO_ReadPin(WIRE8_GPIO_Port, WIRE8_Pin) == GPIO_PIN_RESET) << 7;
|
|
wires = new_wires;
|
|
|
|
if (wires != old_wires) {
|
|
delta |= 1 << DELTA_BIT_WIRES;
|
|
}
|
|
}
|
|
|
|
|
|
void scan_button(void)
|
|
{
|
|
old_button = button;
|
|
button = HAL_GPIO_ReadPin(HELP_BTN_GPIO_Port, HELP_BTN_Pin) == GPIO_PIN_RESET;
|
|
|
|
if (button != old_button) {
|
|
delta |= 1 << DELTA_BIT_BUTTON;
|
|
}
|
|
}
|
|
|
|
void set_relay_buzz(void)
|
|
{
|
|
if (relay_buzz != old_relay_buzz) {
|
|
old_relay_buzz = relay_buzz;
|
|
HAL_GPIO_WritePin(BUZZ_GPIO_Port, BUZZ_Pin, (relay_buzz >> BUZZ_BIT_IDX) & 1);
|
|
HAL_GPIO_WritePin(RELAY1_GPIO_Port, RELAY1_Pin, (relay_buzz >> RELAY_BIT_IDX) & 1);
|
|
HAL_GPIO_WritePin(RELAY2_GPIO_Port, RELAY2_Pin, (relay_buzz >> RELAY_BIT_IDX) & 1);
|
|
}
|
|
}
|
|
|
|
void set_leds(void)
|
|
{
|
|
if (leds != old_leds) {
|
|
old_leds = leds;
|
|
HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, (leds >> 0) & 1);
|
|
HAL_GPIO_WritePin(LED2_GPIO_Port, LED2_Pin, (leds >> 1) & 1);
|
|
HAL_GPIO_WritePin(LED3_GPIO_Port, LED3_Pin, (leds >> 2) & 1);
|
|
HAL_GPIO_WritePin(LED4_GPIO_Port, LED4_Pin, (leds >> 3) & 1);
|
|
}
|
|
}
|
|
|
|
void send_interupt(void)
|
|
{
|
|
if (delta != old_delta) {
|
|
old_delta = delta;
|
|
HAL_GPIO_WritePin(INT_GPIO_Port, INT_Pin, delta == 0);
|
|
}
|
|
}
|
|
|
|
uint32_t old_tick;
|
|
void handle_strike(void) {
|
|
if (strike_issued && (strike_at == 0)) {
|
|
strike_issued = false;
|
|
strike_at = HAL_GetTick();
|
|
// start the buzzer and set the led
|
|
relay_buzz |= 1 << BUZZ_BIT_IDX;
|
|
leds |= 1 << 3;
|
|
}
|
|
|
|
if (strike_at == 0) {
|
|
return;
|
|
}
|
|
uint32_t now = HAL_GetTick();
|
|
|
|
uint32_t buzz_threshold = strike_at + strike_buzz_len;
|
|
if (now > buzz_threshold && old_tick <= buzz_threshold) {
|
|
// stop buzzing, start the relay
|
|
relay_buzz = (1 << RELAY_BIT_IDX);
|
|
}
|
|
|
|
uint32_t relay_threshold = buzz_threshold + strike_relay_len;
|
|
if (now > relay_threshold) {
|
|
// stop the strike
|
|
strike_at = 0;
|
|
relay_buzz = 0;
|
|
leds &= ~(1 << 3);
|
|
}
|
|
|
|
old_tick = now;
|
|
}
|
|
|
|
/* 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 */
|