ブルーブリッジカップ電子類単片ユニットモジュール——標準プログラムテンプレート

#include 
#include "intrins.h"

#define u8 unsigned char
#define u16 unsigned int

#define NO_KEY 0xF0
#define KEY_STATE0 0
#define KEY_STATE1 1
#define KEY_STATE2 2

#define LED0 0x00
#define LED1 0x01
#define LED2 0x01<<1
#define LED3 0x01<<2
#define LED4 0x01<<3
#define LED5 0x01<<4
#define LED6 0x01<<5
#define LED7 0x01<<6
#define LED8 0x01<<7

#define NO_THING 0x00
#define BUZZER 0x40
#define RELAY 0x10
#define BU_RE 0x50

/*************************************** **********************************/
u8 code smg_du[]={
     // 
//   0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F
    0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,
//black  -     H    J    K    L    N    o   P    U     t    G    Q    r   M    y
    0x00,0x40,0x76,0x1E,0x70,0x38,0x37,0x5C,0x73,0x3E,0x78,0x3d,0x67,0x50,0x37,0x6e};
u8 code smg_point[]={
     0xBF,0x86,0xDB,0xCF,0xE6,0xED,0xFD,0x87,0xFF,0xEF,0x46};//0. 1. 2. 3. 4. 5. 6. 7. 8. 9. -1
u8 code smg_wei[]={
     0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};// 
u8 code led_du[]={
     LED0,LED1,LED2,LED3,LED4,LED5,LED6,LED7,LED8};
u8 code bure_du[]={
     NO_THING,RELAY,BUZZER,BU_RE};

void Timer0Init(void)		//1 @12.0MHz
{
     
	AUXR |= 0x80;		// 1T 
	TMOD &= 0xF0;		// 
	TL0 = 0x20;		// 
	TH0 = 0xD1;		// 
	TF0 = 0;		// TF0 
	TR0 = 1;		// 0 
	ET0=1;
	EA=1;
}



unsigned char key_scan()
{
     
	static u8 key_state=KEY_STATE0;
	u8 key1,key_temp,key_val;
	P30=1;P31=1;P32=1;P33=1;P44=0;
	if(P30==0) key1=0x10;
	if(P31==0) key1=0x20;
	if(P32==0) key1=0x30;
	if(P33==0) key1=0x40;
	if((P30==1)&&(P31==1)&&(P32==1)&&(P33==1)) key1=0xf0;
	key_temp=key1;
	
	switch(key_state)
	{
     
		case KEY_STATE0:
			if(key_temp!=NO_KEY)
			{
     	
				key_state=KEY_STATE1;
			}
		break;
		
		case KEY_STATE1:
			if(key_temp==NO_KEY)
			{
     	
				key_state=KEY_STATE0;
			}
			else
			{
     
				key_state=KEY_STATE2;
				switch(key_temp)
				{
     
					case 0x10:key_val=7;break;
					case 0x20:key_val=6;break;
					case 0x30:key_val=5;break;
					case 0x40:key_val=4;break;
				}
			}
		break;
		case KEY_STATE2:
			if(key_temp==NO_KEY)
			{
     	
				key_state=KEY_STATE0;
			}
		break;
	}
	
	return key_val;
}


bit key_flag=0;// 
u8 key_value;// 
u8 led_choose=0;//LED1 
u8 bure_choose=0;//ULN2003 

void main()
{
     
	Timer0Init();
	while(1)
	{
     

		if(key_flag)
		{
     
			key_flag=0;
			key_value=key_scan();
			switch(key_value)
			{
     
				case 4:
				led_choose=1;
				bure_choose=0;
					break;

				case 5:
					led_choose=2;	
				  bure_choose=1;
					break;
				
				case 6:
				led_choose=3;
				  bure_choose=2;	
				break;
				
				case 7:
				led_choose=4;	
				  bure_choose=3;	
				break;
			}
		}
	}
}

void timer0() interrupt 1 using 1
{
     
	static u16 key_count=0,display_count=0,i=0;
/*************************************** **********************************/
	key_count++;
	if(key_count==10)
	{
     
		key_count=0;
		key_flag=1;
	}
/*************************************** **********************************/
	display_count++;
	if(display_count==1)
	{
     
		P0=~led_du[led_choose];P2=0x80;P2=0x00;
	}
	if(display_count==2)
	{
     
		P0=bure_du[bure_choose];P2=0xA0;P2=0x00;
	}
	if(display_count==3)
	{
     
		display_count=0;
		P2=0XE0;P0=~0X00;P2=0X00;
		P2=0XC0;P0=smg_wei[i];P2=0X00;
		P2=0XE0;P0=~smg_du[i];P2=0X00; 
		i++;
		if(i==8) i=0;
	}
			
			
}