在EDA开发板上实现电子时钟功能代码
时间: 2023-12-03 09:42:48 浏览: 98
以下是一个简单的电子时钟功能代码,可以在EDA开发板上实现:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "eda_gpio.h"
#include "eda_timer.h"
#include "eda_lcd.h"
#define LED_PIN EDA_GPIO_PIN_0
#define TIME_STR_LEN 9 // hh:mm:ss\0
volatile uint32_t tick_count = 0;
volatile uint32_t second_count = 0;
void tick_handler(void)
{
tick_count++;
if (tick_count == 1000) {
tick_count = 0;
second_count++;
}
}
void update_lcd(void)
{
char time_str[TIME_STR_LEN];
uint32_t hours = second_count / 3600;
uint32_t minutes = (second_count % 3600) / 60;
uint32_t seconds = second_count % 60;
snprintf(time_str, TIME_STR_LEN, "%02d:%02d:%02d", hours, minutes, seconds);
eda_lcd_display_string(time_str);
}
int main(void)
{
eda_gpio_init(LED_PIN, EDA_GPIO_MODE_OUTPUT);
eda_timer_init_tick(1, tick_handler);
eda_lcd_init();
eda_lcd_display_string("00:00:00");
while (1) {
if (second_count % 2 == 0) {
eda_gpio_set(LED_PIN);
} else {
eda_gpio_clear(LED_PIN);
}
update_lcd();
}
return 0;
}
```
该代码使用了EDA开发板的GPIO、Timer和LCD模块。每当定时器产生一个时钟节拍,tick_handler()函数就会被调用,将计数器tick_count加1。当tick_count达到1000时,即一秒钟过去了,就将second_count加1。在main()函数中,每隔一秒钟,将LED灯的状态取反,并更新LCD显示的时间。
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