c51LCDdriver.zip_zlg gui

//ACM-12864汉字液晶显示驱动程序 sbit p_csa=P2^6; sbit p_csb=P2^7; sbit p_gnda=P2^5; sbit p_gndb=P2^4; sbit p_di=P2^3; sbit p_rw=P2^2; sbit p_e=P2^1; /*忙判别*/ void lcd_busy(void) { p_di=0;p_rw=1;P0=0xff; while (1) { p_e=1; if (P0<0x80) break; p_e=0; } p_e=0; } /*设置xy*/ void set_xy(unsigned char x,unsigned char y) { if (x>=64) {p_csa=0;p_csb=1;} else {p_csb=0;p_csa=1;} lcd_busy(); p_di=p_rw=0;P0=0x40|x;p_e=1;p_e=0; lcd_busy(); p_di=p_rw=0;P0=0xb8|y;p_e=1;p_e=0; P0=0xff; } void lw(unsigned char x,unsigned char y,unsigned char dd) { set_xy(x,y); lcd_busy();p_di=1;p_rw=0;P0=dd;p_e=1;p_e=0; P0=0xff; } /*显示初始化*/ #pragma disable void lcd_init(void) { unsigned char x,y; p_gnda=p_gndb=0; /*开显示*/ p_e=p_di=p_rw=0; p_csa=p_csb=0; p_csa=1;P0=0x3f;p_e=1;p_e=0;p_csa=0; p_csb=1;P0=0x3f;p_e=1;p_e=0;p_csb=0; /*0行开始显示*/ p_csa=1;lcd_busy();p_di=p_rw=0;P0=0xc0;p_e=1;p_e=0;p_csa=0; p_csb=1;lcd_busy();p_di=p_rw=0;P0=0xc0;p_e=1;p_e=0;p_csb=0; for (y=0;y<8;y++) { for (x=0;x<128;x++) lw(x,y,0); } } unsigned char code 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