基于STM32ZGT6的闹钟定时器程序

ID:506115 · 发表于 2019-7-2 18:51

l基本要求：实现具备闹钟功能的电子钟
使用STM32定时器功能实现，禁止使用RTC
基于STM32开发板和液晶屏幕实现功能
电子钟具备时间显示功能和闹钟功能
利用两个可以控制的LED指示闹钟1和闹钟2的状态
进阶要求：电子钟时间和闹钟修改以及LED渐变
利用板载三个按键实现修改时间和闹钟设定时间功能
实现LED灯1和LED灯2在点亮和熄灭时的渐变效果

单片机源程序如下:

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "timer.h"
#include "oled.h"
#include "exti.h"
#include "key.h"
#include "pwm.h"
struct time_format{
short hour;
short minute;
short second;
}time,alarm1,alarm2;
extern short Flag_LED0_light;
extern short Flag_LED1_light;
extern void TIM14_PWM_Init(u32 arr,u32 psc);
void OLED_update(struct time_format time,struct time_format alarm1,struct time_format alarm2)
{
OLED_Clear();
OLED_ShowString(0,0,"Time");
OLED_ShowString(0,2,"Alarm1");
OLED_ShowString(0,4,"Alarm2");
OLED_ShowNum(52,0,time.hour,2,16);
OLED_ShowChar(67,0,':');
OLED_ShowNum(74,0,time.minute,2,16);
OLED_ShowChar(89,0,':');
OLED_ShowNum(96,0,time.second,2,16);
OLED_ShowNum(52,2,alarm1.hour,2,16);
OLED_ShowChar(67,2,':');
OLED_ShowNum(74,2,alarm1.minute,2,16);
OLED_ShowChar(89,2,':');
OLED_ShowNum(96,2,alarm1.second,2,16);
OLED_ShowNum(52,4,alarm2.hour,2,16);
OLED_ShowChar(67,4,':');
OLED_ShowNum(74,4,alarm2.minute,2,16);
OLED_ShowChar(89,4,':');
OLED_ShowNum(96,4,alarm2.second,2,16);
}
void time_init()
{
time.hour=22;
time.minute=33;
time.second=44;
/*
alarm1.hour=23;
alarm1.minute=00;
alarm1.second=00;
alarm2.hour=01;
alarm2.minute=59;
alarm2.second=59;
*/
alarm1.hour=22;
alarm1.minute=33;
alarm1.second=50;
alarm2.hour=22;
alarm2.minute=33;
alarm2.second=55;
}
int time_compete(struct time_format time,struct time_format alarm)
{
if(time.hour==alarm.hour&&time.minute==alarm.minute&&time.second==alarm.second)
return 1;
else return 0;
}
void time_update()
{
if(time.second==60)
{
time.minute++;
time.second=00;
if(time.minute==60)
{
time.minute=00;
time.hour++;
if(time.hour==24)
time.hour=0;
}
}
if(time.minute==60)
{
time.minute=00;
time.hour++;
if(time.hour==24)
time.hour=0;
}
if(time.hour==24)
time.hour=0;
if(alarm1.second==60)
{
alarm1.minute++;
alarm1.second=00;
if(alarm1.minute==60)
{
alarm1.minute=00;
alarm1.hour++;
if(alarm1.hour==24)
alarm1.hour=0;
}
}
if(alarm1.minute==60)
{
alarm1.minute=00;
alarm1.hour++;
if(alarm1.hour==24)
alarm1.hour=0;
}
if(alarm1.hour==24)
alarm1.hour=0;
if(alarm2.second==60)
{
alarm2.minute++;
alarm2.second=00;
if(alarm2.minute==60)
{
alarm2.minute=00;
alarm2.hour++;
if(alarm2.hour==24)
alarm2.hour=0;
}
}
if(alarm2.minute==60)
{
alarm2.minute=00;
alarm2.hour++;
if(alarm2.hour==24)
alarm2.hour=0;
}
if(alarm2.hour==24)
alarm2.hour=0;
}
void LED_light(int a,int b)
{
int t=0;
if(a==0)
{
if(b==0)
{
t=0;
while(t<25)
{
LED0=0;
delay_ms(t);
LED0=1;
delay_ms(25-t);
t++;
}
LED0=0;
}
else
{
t=25;
while(t>0)
{
LED0=0;
delay_ms(t);
LED0=1;
delay_ms(25-t);
t--;
}
LED0=1;
}
}
else
{
if(b==0)
{
t=0;
while(t<25)
{
LED1=0;
delay_ms(t);
LED1=1;
delay_ms(25-t);
t++;
}
LED1=0;
}
else
{
t=25;
while(t>0)
{
LED1=0;
delay_ms(t);
LED1=1;
delay_ms(25-t);
t--;
}
LED1=1;
}
}
}
void LED_light_pwm(int a,int b)
{
u16 led0pwmval=0;
if(a==0)
{
if(b==0)
{
led0pwmval=500;
while(led0pwmval>0)
{
delay_ms(10);
led0pwmval--;
TIM_SetCompare1(TIM14,led0pwmval);
}
}
else
{
led0pwmval=0;
while(led0pwmval<500)
{
delay_ms(10);
led0pwmval++;
TIM_SetCompare1(TIM14,led0pwmval);
}
}
}
else
{
if(b==0)
{
}
else
{
}
}
}
int main(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168); //初始化延时函数
uart_init(115200); //串口初始化
LED_Init(); //初始化LED端口
EXTIX_Init(); //初始化外部中断输入
time_init();//时间变量赋初值
OLED_Init();//OLED初始化
OLED_update(time,alarm1,alarm2);
TIM3_Int_Init(10000-1,8400-1); //定时器时钟84M，分频系数8400，所以84M/8400=10Khz的计数频率
TIM14_PWM_Init(500-1,84-1); //84M/84=1Mhz的计数频率,重装载值500，所以PWM频率为 1M/500=2Khz.
GPIO_SetBits(GPIOF,GPIO_Pin_9);//GPIOF9,F10设置高，灯灭
while(1)
{
if(Flag_LED0_light==0)
{
LED_light_pwm(0,0);
GPIO_SetBits(GPIOF,GPIO_Pin_9);//GPIOF9,F10设置高，灯灭
LED0=0;
Flag_LED0_light=-1;
}
if(Flag_LED0_light==1)
{
LED_light_pwm(0,1);
Flag_LED0_light=-1;
}
if(Flag_LED1_light==0)
{
LED_light(1,0);
Flag_LED1_light=-1;
}
if(Flag_LED1_light==1)
{
LED_light(1,1);
Flag_LED1_light=-1;
}
if(USART_RX_STA&0x8000)
{
u8 len=USART_RX_STA&0x3fff;//得到此次接收到的数据长度
//USART_RX_BUF
if(strstr((const char*)USART_RX_BUF,"set"))
{
time.hour=(USART_RX_BUF[4]-48)*10+USART_RX_BUF[5]-48;
time.minute=(USART_RX_BUF[7]-48)*10+USART_RX_BUF[8]-48;
time.second=(USART_RX_BUF[10]-48)*10+USART_RX_BUF[11]-48;
printf("OK!\r\n");
}
USART_RX_STA=0;
}
}
}

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程序:

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ID:1 · 发表于 2019-7-5 04:32

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基于STM32ZGT6的闹钟定时器程序

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