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前言
开发板:正点原子 STM32F103 精英版
语言:C语言
开发环境:Keil5
使用了 KEY LED LCD RTC
代码下载:码云 GitHub
代码参考:正点原子 源码RTC实验例程
功能介绍:
1、LCD显示年月日 时分秒 星期 信息。
2、KEY0 进入修改模式,分别可以修改 年月日时分秒(处于修改状态下,对应值会变红),最后退出修改模式。
3、在KEY0的修改模式下,按KEY1为数字+1,按KEY_UP为数字-1。
效果图
核心代码
#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "lcd.h"
#include "usart.h"
#include "usmart.h"
#include "rtc.h"
/* 显示时间,index特殊处理 */
void show_index_time( u8 index, _calendar_obj calendar_temp );
int main( void )
{
/* 按键返回值 */
u8 key = 0;
/* 修改指向下标 */
u8 index = 0;
/* 日历结构体 */
_calendar_obj calendar_temp;
/* 延时函数初始化 */
delay_init();
/* 设置中断优先级分组为组2:2位抢占优先级,2位响应优先级 */
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_2 );
/* 串口初始化为115200 */
uart_init( 115200 );
/* LED端口初始化 */
LED_Init();
/* LCD初始化 */
LCD_Init();
/* 按键初始化 */
KEY_Init();
/* 初始化USMART */
usmart_dev.init( SystemCoreClock / 1000000 );
/* RTC初始化 */
RTC_Init();
/*
* 显示时间
* 设置字体为蓝色
*/
POINT_COLOR = BLUE;
LCD_ShowString( 60, 130, 200, 16, 16, " - - " );
LCD_ShowString( 60, 162, 200, 16, 16, " : : " );
calendar_temp = calendar;
while ( 1 )
{
/* 根据index显示不同日历变量 */
if ( 0 == index )
show_index_time( index, calendar );
else show_index_time( index, calendar_temp );
/*
* 键处理函数
* 返回按键值
* mode:0,不支持连续按;1,支持连续按;
* 0,没有任何按键按下
* 1,KEY0按下
* 2,KEY1按下
* 3,KEY3按下 WK_UP
*/
key = KEY_Scan( 0 );
/* KEY0 进入修改模式,依次顺序循环 */
if ( 1 == key )
{
index++;
index = index % 7;
/* 进入修改 */
if ( 1 == index )
{
calendar_temp = calendar;
}
/* 退出修改 */
else if(0 == index)
{
calendar = calendar_temp;
RTC_Set( calendar_temp.w_year, calendar_temp.w_month, calendar_temp.w_date, calendar_temp.hour, calendar_temp.min, calendar_temp.sec );
}
}
/* KEY1 选中值+1 */
else if ( 2 == key )
{
if ( 1 == index )
{
calendar_temp.w_year++;
} else if ( 2 == index )
{
calendar_temp.w_month++;
calendar_temp.w_month = calendar_temp.w_month > 12 ? 1 : calendar_temp.w_month;
} else if ( 3 == index )
{
/* 判断闰年 */
if ( Is_Leap_Year( calendar_temp.w_year ) )
{
calendar_temp.w_date++;
calendar_temp.w_date = calendar_temp.w_date > (calendar_temp.w_month == 2 ? (mon_table[calendar_temp.w_month - 1] + 1) : mon_table[calendar_temp.w_month - 1]) ? 1 : calendar_temp.w_date;
} else {
calendar_temp.w_date++;
calendar_temp.w_date = calendar_temp.w_date > mon_table[calendar_temp.w_month - 1] ? 1 : calendar_temp.w_date;
}
} else if ( 4 == index )
{
calendar_temp.hour++;
calendar_temp.hour = calendar_temp.hour > 23 ? 0 : calendar_temp.hour;
} else if ( 5 == index )
{
calendar_temp.min++;
calendar_temp.min = calendar_temp.min > 59 ? 0 : calendar_temp.min;
} else if ( 6 == index )
{
calendar_temp.sec++;
calendar_temp.sec = calendar_temp.sec > 59 ? 0 : calendar_temp.sec;
}
}
/* KEY_UP 选中值-1 */
else if ( 3 == key )
{
if ( 1 == index )
{
calendar_temp.w_year--;
calendar_temp.w_year = calendar_temp.w_year > 0 ? calendar_temp.w_year : 0;
} else if ( 2 == index )
{
calendar_temp.w_month--;
calendar_temp.w_month = calendar_temp.w_month > 0 ? calendar_temp.w_month : 12;
} else if ( 3 == index )
{
if ( Is_Leap_Year( calendar_temp.w_year ) )
{
calendar_temp.w_date--;
calendar_temp.w_date = calendar_temp.w_date > 0 ? calendar_temp.w_date : (calendar_temp.w_month == 2 ? (mon_table[calendar_temp.w_month - 1] + 1) : mon_table[calendar_temp.w_month - 1]);
} else {
calendar_temp.w_date--;
calendar_temp.w_date = calendar_temp.w_date > 0 ? calendar_temp.w_date : mon_table[calendar_temp.w_month - 1];
}
} else if ( 4 == index )
{
calendar_temp.hour = calendar_temp.hour == 0 ? 23 : calendar_temp.hour - 1;
} else if ( 5 == index )
{
calendar_temp.min = calendar_temp.min == 0 ? 59 : calendar_temp.min - 1;
} else if ( 6 == index )
{
calendar_temp.sec = calendar_temp.sec == 0 ? 59 : calendar_temp.sec - 1;
}
}
delay_ms( 10 );
}
}
/* 显示时间,index特殊处理 */
void show_index_time( u8 index, _calendar_obj calendar_temp )
{
POINT_COLOR = BLUE;
if ( 1 == index )
POINT_COLOR = RED;
LCD_ShowNum( 60, 130, calendar_temp.w_year, 4, 16 );
POINT_COLOR = BLUE;
if ( 2 == index )
POINT_COLOR = RED;
LCD_ShowNum( 100, 130, calendar_temp.w_month, 2, 16 );
POINT_COLOR = BLUE;
if ( 3 == index )
POINT_COLOR = RED;
LCD_ShowNum( 124, 130, calendar_temp.w_date, 2, 16 );
POINT_COLOR = BLUE;
if ( 4 == index )
POINT_COLOR = RED;
LCD_ShowNum( 60, 162, calendar_temp.hour, 2, 16 );
POINT_COLOR = BLUE;
if ( 5 == index )
POINT_COLOR = RED;
LCD_ShowNum( 84, 162, calendar_temp.min, 2, 16 );
POINT_COLOR = BLUE;
if ( 6 == index )
POINT_COLOR = RED;
LCD_ShowNum( 108, 162, calendar_temp.sec, 2, 16 );
POINT_COLOR = RED;
}
参考图