cc2530交通灯代码

由于没有具体要求，我提供一个基于CC2530的交通灯控制代码的参考：

#include "stdio.h"
#include "string.h"
#include "ioCC2530.h"

#define RED_LED P0_0
#define YELLOW_LED P0_1
#define GREEN_LED P0_2

#define RED_INTERVAL 10000
#define YELLOW_INTERVAL 2000
#define GREEN_INTERVAL 10000

enum {
    STATE_RED,
    STATE_RED_YELLOW,
    STATE_GREEN,
    STATE_YELLOW
};

static unsigned char state = STATE_RED;
static unsigned long interval = RED_INTERVAL;

void delay_ms(unsigned int t)
{
    unsigned int i, j;
    for (i = 0; i < t; i++)
        for (j = 0; j < 535; j++);
}

int main(void)
{
    P0SEL &= ~0x07; // P0.0~P0.2设置为GPIO口
    P0DIR |= 0x07; // P0.0~P0.2设置为输出
    while (1) {
        switch (state) {
        case STATE_RED:
            RED_LED = 1;
            YELLOW_LED = 0;
            GREEN_LED = 0;
            interval = RED_INTERVAL;
            state = STATE_RED_YELLOW;
            break;
        case STATE_RED_YELLOW:
            RED_LED = 1;
            YELLOW_LED = 1;
            GREEN_LED = 0;
            interval = YELLOW_INTERVAL;
            state = STATE_GREEN;
            break;
        case STATE_GREEN:
            RED_LED = 0;
            YELLOW_LED = 0;
            GREEN_LED = 1;
            interval = GREEN_INTERVAL;
            state = STATE_YELLOW;
            break;
        case STATE_YELLOW:
            RED_LED = 0;
            YELLOW_LED = 1;
            GREEN_LED = 0;
            interval = YELLOW_INTERVAL;
            state = STATE_RED;
            break;
        }
        delay_ms(interval);
    }
    return 0;
}

这个代码实现了一个简单的交通灯控制器，其中RED_LED、YELLOW_LED、GREEN_LED分别对应红、黄、绿三盏灯。

具体的实现逻辑如下：

1. 初始化P0.0~P0.2为输出口；
2. 进入while循环，根据状态控制LED的亮灭；
3. 根据状态设置不同的时间间隔，实现交通灯的闪烁效果；
4. 延时指定的时间间隔。