display.c

在8052下实现电平电压测试功能,自己开发的单片系统

/*
-------------------------------------------------------------------------------
;		(c) Copyright xami All Rights Reserved              
-------------------------------------------------------------------------------
;	SOURCE_FILE:    DISPLAY.C
;	APPLICATION:	80c51\80c52
;	DESCRIPTION:    十位串行显示,view_number[10]作为显存,通过串口0方式发送
;	AUTHOR:         xami
;	DATE:           28 Apr. 2007
-------------------------------------------------------------------------------	  
//LED字符、数字编码表
unsigned char code viewtab[256]={
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
};*/

/*通过dis_num[10]传递变量*/
void display(void)
{													
	uchar i;

	P2_7=1;
	SCON=0x00;              //初始化串行口 0方式
	for(i=0;i<=9;i++)     //一共送10位数显示 
	{
		SBUF= dis_num[9-i];      //送出第i位显示  
     	while(!TI); 		//等待TI跳变
		TI=0;         		//发送完毕标志位为1则,再次清零,准备发下一位数据
    }
	P2_7=0;
}
void show_err(void)
{	
	uchar i;	
	//extern uchar code state[2][10];
	P2_7=1;
	SCON=0x00;              //初始化串行口 0方式
	for(i=0;i<=9;i++){     	//一共送10位数显示 
	SBUF= state[1][9-i];    //送出第i位显示 
	while(!TI); 			//等待TI跳变
	TI=0;}        			//发送完毕标志位为1则,再次清零,准备发下一位数据
	P2_7=0;
}

void show_good(void)
{
	uchar i;
	//extern uchar code state[2][10];
	P2_7=1;
	SCON=0x00;              //初始化串行口 0方式
	for(i=0;i<=9;i++){     	//一共送10位数显示 
	SBUF= state[0][9-i];    //送出第i位显示 
	while(!TI); 			//等待TI跳变
	TI=0;}         			//发送完毕标志位为1则,再次清零,准备发下一位数据
	P2_7=0;
}

void show_null(void)
{
	uchar i;
	//extern uchar code state[3][10];
	P2_7=1;
	SCON=0x00;              //初始化串行口 0方式
	for(i=0;i<=9;i++){     	//一共送10位数显示 
	SBUF= state[3][9-i];    //送出第i位显示 
	while(!TI); 			//等待TI跳变
	TI=0;}         			//发送完毕标志位为1则,再次清零,准备发下一位数据
	P2_7=0;
}