//-----------------------------------------------------------------
//  名稱: 定時器T1控制交通指示燈
//-----------------------------------------------------------------
//  說明: 東西向綠燈亮5秒后,黃燈閃爍,閃爍5次后亮紅燈,
//        紅燈亮后,南北向由紅燈變為綠燈,5秒后南北向黃燈閃爍, 
//        閃爍5次后亮紅燈,東西向綠燈亮,如此往復.
//        本例將時間設得較短是為了調試的時候能較快的觀察到運行效果.
//                
//-----------------------------------------------------------------
#define F_CPU  4000000UL
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#define INT8U   unsigned char
#define INT16U  unsigned int

#define     RED_EW_ON()  PORTC |=  (1<<0);   //東西向指示燈開
#define  YELLOW_EW_ON()  PORTC |=  (1<<1);
#define   GREEN_EW_ON()  PORTC |=  (1<<2);

#define     RED_EW_OFF() PORTC &= ~(1<<0);   //東西向指示燈關
#define  YELLOW_EW_OFF() PORTC &= ~(1<<1);
#define   GREEN_EW_OFF() PORTC &= ~(1<<2);
 
#define     RED_SN_ON()  PORTC |=  (1<<3);   //南北向指示燈開
#define  YELLOW_SN_ON()  PORTC |=  (1<<4);
#define   GREEN_SN_ON()  PORTC |=  (1<<5);

#define     RED_SN_OFF() PORTC &= ~(1<<3);   //南北向指示燈關
#define  YELLOW_SN_OFF() PORTC &= ~(1<<4);
#define   GREEN_SN_OFF() PORTC &= ~(1<<5);

#define   YELLOW_EW_BLINK() PORTC ^= 0x02;   //東西向黃燈閃爍
#define   YELLOW_SN_BLINK() PORTC ^= 0x10;   //南北向黃燈閃爍

#define   BEEP() (PORTB ^= 0x01)            //蜂鳴器

//延時倍數,閃爍次數,操作類型變量
INT8U Time_Count = 0, Flash_Count = 0, Operation_Type = 1;
//------------------------------------------------------------------
// 主程序
//------------------------------------------------------------------
int main() 
{ 


} 

//------------------------------------------------------------------
// 黃燈警報聲音輸出
//------------------------------------------------------------------
void Yellow_Light_Alarm()
{


}

//-----------------------------------------------------------------
// T1定時器溢出中斷服務程序(控制交通指示燈切換顯示)
//-----------------------------------------------------------------
ISR (....)
{

}