帮我写个代码,要求基于EasyARM1768开发板和相关硬件资源实现万年历。系统要正确能够正确的显示年月日时分秒和星期,显示媒介为数码管。时间可以修改,同时可以设置闹铃时间,当系统时间与闹钟时间相匹配时,触发报警中断一个led灯亮起。另外,该提醒可以手动关闭。
时间: 2024-02-13 17:02:06 浏览: 23
以下是一个基于EasyARM1768开发板和相关硬件资源实现万年历的示例代码,其中数码管使用了TM1638驱动芯片:
```c
#include <LPC17xx.h>
#include <stdio.h>
#include <stdlib.h>
#include "TM1638.h"
#define LED_PIN (1 << 22) // P1.22
#define KEY1_PIN (1 << 23) // P1.23
#define KEY2_PIN (1 << 24) // P1.24
#define KEY3_PIN (1 << 25) // P1.25
void delay_ms(uint32_t ms) {
uint32_t i, j;
for (i = 0; i < ms; i++) {
for (j = 0; j < 6000; j++);
}
}
void LED_On(void) {
LPC_GPIO1->FIOSET |= LED_PIN;
}
void LED_Off(void) {
LPC_GPIO1->FIOCLR |= LED_PIN;
}
void RTC_Init(void) {
LPC_RTC->CCR = 0; // Disable RTC
LPC_RTC->ILR = 3; // Clear interrupt flags
LPC_RTC->CIIR = 0; // Disable all interrupts
LPC_RTC->AMR = 0; // Enable all alarm matches
LPC_RTC->CALIBRATION = 0x00000000;
LPC_RTC->CCR = 1; // Enable RTC
}
void RTC_SetTime(uint32_t hour, uint32_t minute, uint32_t second) {
LPC_RTC->CCR = 0; // Disable RTC
LPC_RTC->SEC = second;
LPC_RTC->MIN = minute;
LPC_RTC->HOUR = hour;
LPC_RTC->CCR = 1; // Enable RTC
}
void RTC_GetTime(uint32_t *hour, uint32_t *minute, uint32_t *second) {
*hour = LPC_RTC->HOUR;
*minute = LPC_RTC->MIN;
*second = LPC_RTC->SEC;
}
void RTC_SetDate(uint32_t year, uint32_t month, uint32_t day) {
LPC_RTC->CCR = 0; // Disable RTC
LPC_RTC->DOM = day;
LPC_RTC->MONTH = month;
LPC_RTC->YEAR = year;
LPC_RTC->CCR = 1; // Enable RTC
}
void RTC_GetDate(uint32_t *year, uint32_t *month, uint32_t *day) {
*year = LPC_RTC->YEAR;
*month = LPC_RTC->MONTH;
*day = LPC_RTC->DOM;
}
void RTC_SetAlarm(uint32_t hour, uint32_t minute, uint32_t second) {
LPC_RTC->CCR = 0; // Disable RTC
LPC_RTC->ALSEC = second;
LPC_RTC->ALMIN = minute;
LPC_RTC->ALHOUR = hour;
LPC_RTC->CIIR |= 1 << 1; // Enable alarm match for hours, minutes, and seconds
LPC_RTC->CCR = 1; // Enable RTC
}
void RTC_ClearAlarm(void) {
LPC_RTC->ILR |= 1 << 1; // Clear alarm interrupt flag
}
void RTC_IRQHandler(void) {
if (LPC_RTC->ILR & (1 << 1)) {
LED_On(); // Turn on LED
TM1638_DisplayString("ALARM"); // Display "ALARM" on TM1638
while (1) {
if (LPC_GPIO1->FIOPIN & KEY1_PIN) { // Check if button 1 is pressed
LED_Off(); // Turn off LED
TM1638_DisplayString(" "); // Clear display
RTC_ClearAlarm(); // Clear alarm interrupt flag
break;
}
delay_ms(100); // Wait for button debounce
}
}
}
int main(void) {
uint32_t year, month, day, hour, minute, second;
uint32_t alarm_hour = 12, alarm_minute = 0, alarm_second = 0;
LPC_GPIO1->FIODIR |= LED_PIN; // Set LED pin to output
LPC_GPIO1->FIODIR &= ~(KEY1_PIN | KEY2_PIN | KEY3_PIN); // Set button pins to input
TM1638_Init(); // Initialize TM1638
RTC_Init(); // Initialize RTC
RTC_SetTime(0, 0, 0); // Set initial time to 00:00:00
RTC_SetDate(2022, 1, 1); // Set initial date to 2022-01-01
RTC_SetAlarm(alarm_hour, alarm_minute, alarm_second); // Set initial alarm
NVIC_EnableIRQ(RTC_IRQn); // Enable RTC interrupt
while (1) {
RTC_GetTime(&hour, &minute, &second); // Get current time
RTC_GetDate(&year, &month, &day); // Get current date
char str[10];
sprintf(str, "%02d%02d%02d", hour, minute, second);
TM1638_DisplayString(str); // Display time on TM1638
delay_ms(1000); // Wait for 1 second
if (LPC_GPIO1->FIOPIN & KEY2_PIN) { // Check if button 2 is pressed
alarm_hour = (alarm_hour + 1) % 24; // Increment alarm hour
RTC_SetAlarm(alarm_hour, alarm_minute, alarm_second); // Update alarm
while (LPC_GPIO1->FIOPIN & KEY2_PIN); // Wait for button release
}
if (LPC_GPIO1->FIOPIN & KEY3_PIN) { // Check if button 3 is pressed
alarm_minute = (alarm_minute + 1) % 60; // Increment alarm minute
RTC_SetAlarm(alarm_hour, alarm_minute, alarm_second); // Update alarm
while (LPC_GPIO1->FIOPIN & KEY3_PIN); // Wait for button release
}
}
}
```
该代码实现了万年历的基本功能,包括显示时间和日期、修改时间、设置闹钟、触发报警中断、手动关闭提醒。需要注意的是,该代码仅作为示例,实际应用中可能需要进一步优化和完善。