199 lines
5.5 KiB
C
199 lines
5.5 KiB
C
/**
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******************************************************************
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* @file main.c
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* @author fire
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* @version V1.0
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* @date 2019-xx-xx
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* @brief RTC-闹钟实验
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******************************************************************
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* @attention
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*
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* 实验平台:野火 STM32H743开发板
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* 论坛 :http://www.firebbs.cn
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* 淘宝 :http://firestm32.taobao.com
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*
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******************************************************************
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*/
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#include "stm32h7xx.h"
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#include "main.h"
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#include "./led/bsp_led.h"
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#include "./usart/bsp_usart.h"
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#include "./sdram/bsp_sdram.h"
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#include "./lcd/bsp_lcd.h"
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#include <stdlib.h>
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#include "./delay/core_delay.h"
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#include "./beep/bsp_beep.h"
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#include "./RTC/bsp_rtc.h"
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void Delay(__IO uint32_t nCount);
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/**
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* @brief 主函数
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* @param 无
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* @retval 无
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*/
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int main(void)
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{
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/* 系统时钟初始化成480 MHz */
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SystemClock_Config();
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/* 开启I-Cache */
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SCB_EnableICache();
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/* LED 端口初始化 */
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LED_GPIO_Config();
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/* 蜂鸣器端口初始化 */
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BEEP_GPIO_Config();
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/*初始化串口*/
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UARTx_Config();
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/* LCD 端口初始化 */
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LCD_Init();
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/* LCD 第一层初始化 */
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LCD_LayerInit(0, LCD_FB_START_ADDRESS,ARGB8888);
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/* LCD 第二层初始化 */
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LCD_LayerInit(1, LCD_FB_START_ADDRESS+(LCD_GetXSize()*LCD_GetYSize()*4),ARGB8888);
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/* 使能LCD，包括开背光 */
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LCD_DisplayOn();
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/* 选择LCD第一层 */
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LCD_SelectLayer(0);
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/* 第一层清屏，显示全黑 */
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LCD_Clear(LCD_COLOR_BLACK);
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/* 选择LCD第二层 */
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LCD_SelectLayer(1);
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/* 第二层清屏，显示全黑 */
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LCD_Clear(LCD_COLOR_TRANSPARENT);
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/* 配置第一和第二层的透明度,最小值为0，最大值为255*/
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LCD_SetTransparency(0, 255);
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LCD_SetTransparency(1, 0);
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/* 选择LCD第一层 */
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LCD_SelectLayer(0);
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/*=========================液晶初始化结束===============================*/
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/*
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* 当我们配置过RTC时间之后就往备份寄存器0写入一个数据做标记
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* 所以每次程序重新运行的时候就通过检测备份寄存器0的值来判断
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* RTC 是否已经配置过，如果配置过那就继续运行，如果没有配置过
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* 就初始化RTC，配置RTC的时间。
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*/
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/* RTC配置：选择时钟源，设置RTC_CLK的分频系数 */
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RTC_CLK_Config();
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if (HAL_RTCEx_BKUPRead(&Rtc_Handle,RTC_BKP_DRX) != 0X32F3)
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{
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/* 闹钟设置 */
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RTC_AlarmSet();
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/* 设置时间和日期 */
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RTC_TimeAndDate_Set();
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}
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else
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{
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/* 检查是否电源复位 */
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if (__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET)
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{
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printf("\r\n 发生电源复位....\r\n");
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}
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/* 检查是否外部复位 */
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else if (__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) != RESET)
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{
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printf("\r\n 发生外部复位....\r\n");
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}
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printf("\r\n 不需要重新配置RTC....\r\n");
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/* 使能 PWR 时钟 */
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__HAL_RCC_RTC_ENABLE();
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/* PWR_CR:DBF置1，使能RTC、RTC备份寄存器和备份SRAM的访问 */
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HAL_PWR_EnableBkUpAccess();
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/* 等待 RTC APB 寄存器同步 */
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HAL_RTC_WaitForSynchro(&Rtc_Handle);
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}
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/* 显示时间和日期 */
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RTC_TimeAndDate_Show();
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}
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/**
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* @brief System Clock 配置
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* system Clock 配置如下:
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 480000000 (CPU Clock)
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* HCLK(Hz) = 240000000 (AXI and AHBs Clock)
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* AHB Prescaler = 2
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* D1 APB3 Prescaler = 2 (APB3 Clock 120MHz)
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* D2 APB1 Prescaler = 2 (APB1 Clock 120MHz)
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* D2 APB2 Prescaler = 2 (APB2 Clock 120MHz)
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* D3 APB4 Prescaler = 2 (APB4 Clock 120MHz)
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 5
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* PLL_N = 192
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* PLL_P = 2
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* PLL_Q = 4
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* PLL_R = 2
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* VDD(V) = 3.3
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* Flash Latency(WS) = 4
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* @param None
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* @retval None
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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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/** 启用电源配置更新
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*/
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
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/** 配置主内稳压器输出电压
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*/
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);
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while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
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/** 初始化CPU、AHB和APB总线时钟
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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 = 5;
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RCC_OscInitStruct.PLL.PLLN = 192;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLQ = 2;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
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RCC_OscInitStruct.PLL.PLLFRACN = 0;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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while(1);
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}
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/** 初始化CPU、AHB和APB总线时钟
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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_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
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{
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while(1);
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}
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}
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void Delay(__IO uint32_t nCount) //简单的延时函数
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{
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for(; nCount != 0; nCount--);
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}
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/****************************END OF FILE***************************/
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