/* 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) 2026 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 "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 "miscdev.h"
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#include "sht20.h"
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#include "ds18b20.h"
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#include "isl1208.h"
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#include "oled_drv.h"
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#include "oled_font.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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/* 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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/* 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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/* USER CODE END PFP */
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/* Private user code ---------------------------------------------------------*/
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/* USER CODE BEGIN 0 */
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/**
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* @brief OLED显示时间
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*/
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void oled_show_time(void)
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{
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rtc_time_t tm;
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char buf[64];
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/* 获取RTC时间并保存到 buf */
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isl1208_get_time(&tm);
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snprintf(buf, sizeof(buf), "20%02d-%02d-%02d %02d:%02d:%02d",
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tm.year, tm.month, tm.day,
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tm.hour, tm.minute, tm.second);
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/* 输出显示内容 OLED 屏幕上 */
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OLED_Clear();
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OLED_ShowString(10, OLED_PAGE2, buf, OLED_FONT8);
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OLED_Refresh();
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return;
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}
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void oled_show_rh(void)
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{
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float temperature = 0.0;
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float humidity = 0.0;
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char buf[64];
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/* 采样并输出显示内容到 buf */
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sht20_sample_TrH(&temperature, &humidity);
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snprintf(buf, sizeof(buf), "%.2f'C %.2f%%RH", temperature, humidity);
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/* 输出显示内容 OLED 屏幕上 */
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OLED_Clear();
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OLED_ShowString(10, OLED_PAGE2, buf, OLED_FONT8);
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OLED_Refresh();
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return;
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}
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void oled_show_logo(void)
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{
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/* 输出显示内容 OLED 屏幕上 */
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OLED_Clear();
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OLED_DrawBMP(0, OLED_PAGE0, BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, bmp_logo);
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OLED_Refresh();
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return;
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}
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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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float temperature;
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/* 各个任务的计时基准 */
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uint32_t now = 0;
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uint32_t last_time_tick = 0;
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uint32_t last_rh_tick = 0;
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uint32_t last_logo_tick = 0;
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uint32_t display_unlock_time = 0;
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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_USART1_UART_Init();
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MX_ADC1_Init();
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MX_TIM6_Init();
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MX_TIM1_Init();
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/* USER CODE BEGIN 2 */
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init_led();
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i2c_init(&i2c1_bus);
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beep_start(2, 300);
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printf("ISKBoard: I2C Bitbang Drivers Demo.\r\n");
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if( sht20_init(&i2c1_bus) != 0 )
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{
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printf("SHT20 Sensor init failed!\r\n");
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}
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if( isl1208_init(&i2c1_bus) != 0 )
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{
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printf("ISL1208 RTC init failed!\r\n");
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}
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isl1208_set_time_str("2026-07-09 21:15:30");
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if( OLED_Init(&i2c1_bus) != 0 )
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{
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printf("OLED display init failed!\r\n");
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}
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OLED_Clear();
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OLED_ShowString(30, OLED_PAGE2, "ISKBoard", OLED_FONT16);
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OLED_Refresh();
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ds18b20_sample(&temperature);
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printf("DS18B20 sample temperature: %.2f'C\r\n", temperature);
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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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/* 获取当前系统时间 */
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now = HAL_GetTick();
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/* 心跳灯任务：不需要锁屏，始终高频调用 */
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heartbeat_led(3);
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/* 检查屏幕是否处于“锁定”状态 (正在显示温湿度或Logo) */
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if (now >= display_unlock_time)
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{
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/* 优先检查是否有高优先级任务触发 (Logo -> 温湿度) */
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uint8_t is_displaying = 0;
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/* 每隔 13s 显示 Logo，持续 1s */
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if (now - last_logo_tick >= 13000)
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{
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oled_show_logo(); // 执行显示
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last_logo_tick = now; // 重置Logo计时器
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display_unlock_time = now + 1000;
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is_displaying = 1;
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}
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/* 如果Logo刚显示了，本轮跳过温湿度 */
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else if (now - last_rh_tick >= 5000)
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{
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oled_show_rh(); // 执行显示
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last_rh_tick = now; // 重置温湿度计时器
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display_unlock_time = now + 2000; // 锁屏 2s
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is_displaying = 1;
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}
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/* 如果上面都没有显示特殊内容，则显示时间 */
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if (is_displaying == 0)
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{
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if (now - last_time_tick >= 1000)
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{
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oled_show_time(); // 执行显示
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last_time_tick = now; // 重置时间计时器
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}
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}
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}
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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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_SCALE1) != 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_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 1;
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RCC_OscInitStruct.PLL.PLLN = 20;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
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RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
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RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
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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_PLLCLK;
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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_4) != 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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