lcd.h

基于Keil uVision2平台的C51控制温度老化试验箱的源代码。 1、温度传感器采集温度 2、传感器信号传入 ADC电路 3、经AT89C52单片机的处理分析输出控制 4、通过继电器控制

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/*									*/
/*		Pressure_Control			*/
/*		Version_1.1					*/
/*      AHTL_2007_5             	*/
/*									*/
/*		 							*/
/*		LCD.H 						*/
/*									*/		
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// port define
sfr DispPort=0x90;
/* function prototype */
void delay50us();
void _delay500us(char);
//void _delay2p5ms(char);
//void delay_20ms(unsigned char);
void _init_display();
void _cursor_sw(char);
void _cursor_pos(char, char);
void _disp_msge (char, char, char *);
void _clear_display (void);
//void _disp_4bit (char);
//void _disp_8bit (char);
//void _disp_16bit (unsigned int);
//char _hex2tobcd (char);
//unsigned int _hex3tobcd (unsigned int);
unsigned char _hex2tobcd (unsigned char);
//unsigned int _hex5tobcd (unsigned int);
//unsigned long _hex6tobcd(unsigned long);
//void _display_bit (char,char,char);
//void _display_bit4 (char ,char ,char );
void _display_bit8 (char ,char ,char );
//void _display_bit12 (char ,char ,unsigned int );
//void _display_bit16 (char ,char ,unsigned int );
//void _display_bit24 (char ,char ,unsigned int );
//void _display_bit32 (char ,char ,unsigned long );
//void _display_hex1 (char , char ,char );