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[导读]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 asc[]={
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x38,0xfc,0xfc,0x38,0x0,0x0,0x0,0x0,0x0,0xd,0xd,0x0,0x0,0x0,
0x0,0xe,0x1e,0x0,0x0,0x1e,0xe,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x20,0xf8,0xf8,0x20,0xf8,0xf8,0x20,0x0,0x2,0xf,0xf,0x2,0xf,0xf,0x2,0x0,
0x38,0x7c,0x44,0x47,0x47,0xcc,0x98,0x0,0x6,0xc,0x8,0x38,0x38,0xf,0x7,0x0,
0x30,0x30,0x0,0x80,0xc0,0x60,0x30,0x0,0xc,0x6,0x3,0x1,0x0,0xc,0xc,0x0,
0x80,0xd8,0x7c,0xe4,0xbc,0xd8,0x40,0x0,0x7,0xf,0x8,0x8,0x7,0xf,0x8,0x0,
0x0,0x10,0x1e,0xe,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0xf0,0xf8,0xc,0x4,0x0,0x0,0x0,0x0,0x3,0x7,0xc,0x8,0x0,0x0,
0x0,0x0,0x4,0xc,0xf8,0xf0,0x0,0x0,0x0,0x0,0x8,0xc,0x7,0x3,0x0,0x0,
0x80,0xa0,0xe0,0xc0,0xc0,0xe0,0xa0,0x80,0x0,0x2,0x3,0x1,0x1,0x3,0x2,0x0,
0x0,0x80,0x80,0xe0,0xe0,0x80,0x80,0x0,0x0,0x0,0x0,0x3,0x3,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x10,0x1e,0xe,0x0,0x0,0x0,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xc,0xc,0x0,0x0,0x0,
0x0,0x0,0x0,0x80,0xc0,0x60,0x30,0x0,0xc,0x6,0x3,0x1,0x0,0x0,0x0,0x0,
0xf0,0xf8,0xc,0xc4,0xc,0xf8,0xf0,0x0,0x3,0x7,0xc,0x8,0xc,0x7,0x3,0x0,
0x0,0x10,0x18,0xfc,0xfc,0x0,0x0,0x0,0x0,0x8,0x8,0xf,0xf,0x8,0x8,0x0,
0x8,0xc,0x84,0xc4,0x64,0x3c,0x18,0x0,0xe,0xf,0x9,0x8,0x8,0xc,0xc,0x0,
0x8,0xc,0x44,0x44,0x44,0xfc,0xb8,0x0,0x4,0xc,0x8,0x8,0x8,0xf,0x7,0x0,
0xc0,0xe0,0xb0,0x98,0xfc,0xfc,0x80,0x0,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x0,
0x7c,0x7c,0x44,0x44,0x44,0xc4,0x84,0x0,0x4,0xc,0x8,0x8,0x8,0xf,0x7,0x0,
0xf0,0xf8,0x4c,0x44,0x44,0xc0,0x80,0x0,0x7,0xf,0x8,0x8,0x8,0xf,0x7,0x0,
0xc,0xc,0x4,0x84,0xc4,0x7c,0x3c,0x0,0x0,0x0,0xf,0xf,0x0,0x0,0x0,0x0,
0xb8,0xfc,0x44,0x44,0x44,0xfc,0xb8,0x0,0x7,0xf,0x8,0x8,0x8,0xf,0x7,0x0,
0x38,0x7c,0x44,0x44,0x44,0xfc,0xf8,0x0,0x0,0x8,0x8,0x8,0xc,0x7,0x3,0x0,
0x0,0x0,0x0,0x30,0x30,0x0,0x0,0x0,0x0,0x0,0x0,0x6,0x6,0x0,0x0,0x0,
0x0,0x0,0x0,0x30,0x30,0x0,0x0,0x0,0x0,0x0,0x8,0xe,0x6,0x0,0x0,0x0,
0x0,0x80,0xc0,0x60,0x30,0x18,0x8,0x0,0x0,0x0,0x1,0x3,0x6,0xc,0x8,0x0,
0x0,0x20,0x20,0x20,0x20,0x20,0x20,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x0,
0x0,0x8,0x18,0x30,0x60,0xc0,0x80,0x0,0x0,0x8,0xc,0x6,0x3,0x1,0x0,0x0,
0x18,0x1c,0x4,0xc4,0xe4,0x3c,0x18,0x0,0x0,0x0,0x0,0xd,0xd,0x0,0x0,0x0,
0xf0,0xf8,0x8,0xc8,0xc8,0xf8,0xf0,0x0,0x7,0xf,0x8,0xb,0xb,0xb,0x1,0x0,
0xe0,0xf0,0x98,0x8c,0x98,0xf0,0xe0,0x0,0xf,0xf,0x0,0x0,0x0,0xf,0xf,0x0,
0x4,0xfc,0xfc,0x44,0x44,0xfc,0xb8,0x0,0x8,0xf,0xf,0x8,0x8,0xf,0x7,0x0,
0xf0,0xf8,0xc,0x4,0x4,0xc,0x18,0x0,0x3,0x7,0xc,0x8,0x8,0xc,0x6,0x0,
0x4,0xfc,0xfc,0x4,0xc,0xf8,0xf0,0x0,0x8,0xf,0xf,0x8,0xc,0x7,0x3,0x0,
0x4,0xfc,0xfc,0x44,0xe4,0xc,0x1c,0x0,0x8,0xf,0xf,0x8,0x8,0xc,0xe,0x0,
0x4,0xfc,0xfc,0x44,0xe4,0xc,0x1c,0x0,0x8,0xf,0xf,0x8,0x0,0x0,0x0,0x0,
0xf0,0xf8,0xc,0x84,0x84,0x8c,0x98,0x0,0x3,0x7,0xc,0x8,0x8,0x7,0xf,0x0,
0xfc,0xfc,0x40,0x40,0x40,0xfc,0xfc,0x0,0xf,0xf,0x0,0x0,0x0,0xf,0xf,0x0,
0x0,0x0,0x4,0xfc,0xfc,0x4,0x0,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,
0x0,0x0,0x0,0x4,0xfc,0xfc,0x4,0x0,0x7,0xf,0x8,0x8,0xf,0x7,0x0,0x0,
0x4,0xfc,0xfc,0xc0,0xe0,0x3c,0x1c,0x0,0x8,0xf,0xf,0x0,0x1,0xf,0xe,0x0,
0x4,0xfc,0xfc,0x4,0x0,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x8,0xc,0xe,0x0,
0xfc,0xfc,0x38,0x70,0x38,0xfc,0xfc,0x0,0xf,0xf,0x0,0x0,0x0,0xf,0xf,0x0,
0xfc,0xfc,0x38,0x70,0xe0,0xfc,0xfc,0x0,0xf,0xf,0x0,0x0,0x0,0xf,0xf,0x0,
0xf8,0xfc,0x4,0x4,0x4,0xfc,0xf8,0x0,0x7,0xf,0x8,0x8,0x8,0xf,0x7,0x0,
0x4,0xfc,0xfc,0x44,0x44,0x7c,0x38,0x0,0x8,0xf,0xf,0x8,0x0,0x0,0x0,0x0,
0xf8,0xfc,0x4,0x4,0x4,0xfc,0xf8,0x0,0x7,0xf,0x8,0xe,0x3c,0x3f,0x27,0x0,
0x4,0xfc,0xfc,0x44,0xc4,0xfc,0x38,0x0,0x8,0xf,0xf,0x0,0x0,0xf,0xf,0x0,
0x18,0x3c,0x64,0x44,0xc4,0x9c,0x18,0x0,0x6,0xe,0x8,0x8,0x8,0xf,0x7,0x0,
0x0,0x1c,0xc,0xfc,0xfc,0xc,0x1c,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,
0xfc,0xfc,0x0,0x0,0x0,0xfc,0xfc,0x0,0x7,0xf,0x8,0x8,0x8,0xf,0x7,0x0,
0xfc,0xfc,0x0,0x0,0x0,0xfc,0xfc,0x0,0x1,0x3,0x6,0xc,0x6,0x3,0x1,0x0,
0xfc,0xfc,0x0,0xc0,0x0,0xfc,0xfc,0x0,0x7,0xf,0xe,0x3,0xe,0xf,0x7,0x0,
0xc,0x3c,0xf0,0xe0,0xf0,0x3c,0xc,0x0,0xc,0xf,0x3,0x1,0x3,0xf,0xc,0x0,
0x0,0x3c,0x7c,0xc0,0xc0,0x7c,0x3c,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,
0x1c,0xc,0x84,0xc4,0x64,0x3c,0x1c,0x0,0xe,0xf,0x9,0x8,0x8,0xc,0xe,0x0,
0x0,0x0,0xfc,0xfc,0x4,0x4,0x0,0x0,0x0,0x0,0xf,0xf,0x8,0x8,0x0,0x0,
0x38,0x70,0xe0,0xc0,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x3,0x7,0xe,0x0,
0x0,0x0,0x4,0x4,0xfc,0xfc,0x0,0x0,0x0,0x0,0x8,0x8,0xf,0xf,0x0,0x0,
0x8,0xc,0x6,0x3,0x6,0xc,0x8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
0x0,0x0,0x3,0x7,0x4,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0xa0,0xa0,0xa0,0xe0,0xc0,0x0,0x0,0x7,0xf,0x8,0x8,0x7,0xf,0x8,0x0,
0x4,0xfc,0xfc,0x20,0x60,0xc0,0x80,0x0,0x0,0xf,0xf,0x8,0x8,0xf,0x7,0x0,
0xc0,0xe0,0x20,0x20,0x20,0x60,0x40,0x0,0x7,0xf,0x8,0x8,0x8,0xc,0x4,0x0,
0x80,0xc0,0x60,0x24,0xfc,0xfc,0x0,0x0,0x7,0xf,0x8,0x8,0x7,0xf,0x8,0x0,
0xc0,0xe0,0xa0,0xa0,0xa0,0xe0,0xc0,0x0,0x7,0xf,0x8,0x8,0x8,0xc,0x4,0x0,
0x40,0xf8,0xfc,0x44,0xc,0x18,0x0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,0x0,0x0,
0xc0,0xe0,0x20,0x20,0xc0,0xe0,0x20,0x0,0x27,0x6f,0x48,0x48,0x7f,0x3f,0x0,0x0,
0x4,0xfc,0xfc,0x40,0x20,0xe0,0xc0,0x0,0x8,0xf,0xf,0x0,0x0,0xf,0xf,0x0,
0x0,0x0,0x20,0xec,0xec,0x0,0x0,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,
0x0,0x0,0x0,0x0,0x20,0xec,0xec,0x0,0x0,0x30,0x70,0x40,0x40,0x7f,0x3f,0x0,
0x4,0xfc,0xfc,0x80,0xc0,0x60,0x20,0x0,0x8,0xf,0xf,0x1,0x3,0xe,0xc,0x0,
0x0,0x0,0x4,0xfc,0xfc,0x0,0x0,0x0,0x0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,
0xe0,0xe0,0x60,0xc0,0x60,0xe0,0xc0,0x0,0xf,0xf,0x0,0x7,0x0,0xf,0xf,0x0,
0x20,0xe0,0xc0,0x20,0x20,0xe0,0xc0,0x0,0x0,0xf,0xf,0x0,0x0,0xf,0xf,0x0,
0xc0,0xe0,0x20,0x20,0x20,0xe0,0xc0,0x0,0x7,0xf,0x8,0x8,0x8,0xf,0x7,0x0,
0x20,0xe0,0xc0,0x20,0x20,0xe0,0xc0,0x0,0x40,0x7f,0x7f,0x48,0x8,0xf,0x7,0x0,
0xc0,0xe0,0x20,0x20,0xc0,0xe0,0x20,0x0,0x7,0xf,0x8,0x48,0x7f,0x7f,0x40,0x0,
0x20,0xe0,0xc0,0x60,0x20,0xe0,0xc0,0x0,0x8,0xf,0xf,0x8,0x0,0x0,0x0,0x0,
0x40,0xe0,0xa0,0x20,0x20,0x60,0x40,0x0,0x4,0xc,0x9,0x9,0xb,0xe,0x4,0x0,
0x20,0x20,0xf8,0xfc,0x20,0x20,0x0,0x0,0x0,0x0,0x7,0xf,0x8,0xc,0x4,0x0,
0xe0,0xe0,0x0,0x0,0xe0,0xe0,0x0,0x0,0x7,0xf,0x8,0x8,0x7,0xf,0x8,0x0,
0x0,0xe0,0xe0,0x0,0x0,0xe0,0xe0,0x0,0x0,0x3,0x7,0xc,0xc,0x7,0x3,0x0,
0xe0,0xe0,0x0,0x80,0x0,0xe0,0xe0,0x0,0x7,0xf,0xc,0x7,0xc,0xf,0x7,0x0,
0x20,0x60,0xc0,0x80,0xc0,0x60,0x20,0x0,0x8,0xc,0x7,0x3,0x7,0xc,0x8,0x0,
0xe0,0xe0,0x0,0x0,0x0,0xe0,0xe0,0x0,0x47,0x4f,0x48,0x48,0x68,0x3f,0x1f,0x0,
0x60,0x60,0x20,0xa0,0xe0,0x60,0x20,0x0,0xc,0xe,0xb,0x9,0x8,0xc,0xc,0x0,
0x0,0x40,0x40,0xf8,0xbc,0x4,0x4,0x0,0x0,0x0,0x0,0x7,0xf,0x8,0x8,0x0,
0x0,0x0,0x0,0xbc,0xbc,0x0,0x0,0x0,0x0,0x0,0x0,0xf,0xf,0x0,0x0,0x0,
0x0,0x4,0x4,0xbc,0xf8,0x40,0x40,0x0,0x0,0x8,0x8,0xf,0x7,0x0,0x0,0x0,
0x8,0xc,0x4,0xc,0x8,0xc,0x4,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x80,0xc0,0x60,0x30,0x60,0xc0,0x80,0x0,0x7,0x7,0x4,0x4,0x4,0x7,0x7,0x0
};


unsigned char code hz[]={
/*解: 0*/
0x20,0x10,0xec,0x27,0xf4,0x2c,0xe4,0x40,
0x22,0x9e,0x2,0xd2,0x22,0x1f,0x2,0x0,
0x80,0x40,0x3f,0x9,0x3f,0x89,0xff,0x8,
0xa,0x9,0x9,0xff,0x9,0x9,0x8,0x0
};


显示汉字,fb==1:反白显示
void dh(unsigned char x,unsigned char y,unsigned char n,unsigned char fb) {
 unsigned char i,dd;
 for (i=0;i<16;i++) {
  dd=hz[i+n*32];
  if (fb) if (n!=kongbai) dd=255-dd;
  lw(x*8+i,y,dd);
  dd=hz[i+n*32+16];
  if (fb) if (n!=kongbai) dd=255-dd;
  lw(x*8+i,y+1,dd);
 }
}

显示字符,fb==1:反白显示
void da(unsigned char x,unsigned char y,unsigned char n,unsigned char fb) {
 unsigned char i,dd;
 n-=32;
 if (n>128) n=0;
 if (fb) dd=255; else dd=0;
 lw(x*8,y,dd);
 lw(x*8,y+1,dd);
 for (i=0;i<7;i++) {
  dd=asc[i+n*16];
  if (fb) dd=255-dd;
  lw(x*8+i+1,y,dd);
  dd=asc[i+n*16+8];
  if (fb) dd=255-dd;
  lw(x*8+i+1,y+1,dd);
 }
}

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LED 驱动电源作为 LED 照明系统的 “心脏”,其稳定性直接决定了整个照明设备的使用寿命。然而,在实际应用中,LED 驱动电源易损坏的问题却十分常见,不仅增加了维护成本,还影响了用户体验。要解决这一问题,需从设计、生...

关键字: 驱动电源 照明系统 散热

根据LED驱动电源的公式,电感内电流波动大小和电感值成反比,输出纹波和输出电容值成反比。所以加大电感值和输出电容值可以减小纹波。

关键字: LED 设计 驱动电源

电动汽车(EV)作为新能源汽车的重要代表,正逐渐成为全球汽车产业的重要发展方向。电动汽车的核心技术之一是电机驱动控制系统,而绝缘栅双极型晶体管(IGBT)作为电机驱动系统中的关键元件,其性能直接影响到电动汽车的动力性能和...

关键字: 电动汽车 新能源 驱动电源

在现代城市建设中,街道及停车场照明作为基础设施的重要组成部分,其质量和效率直接关系到城市的公共安全、居民生活质量和能源利用效率。随着科技的进步,高亮度白光发光二极管(LED)因其独特的优势逐渐取代传统光源,成为大功率区域...

关键字: 发光二极管 驱动电源 LED

LED通用照明设计工程师会遇到许多挑战,如功率密度、功率因数校正(PFC)、空间受限和可靠性等。

关键字: LED 驱动电源 功率因数校正

在LED照明技术日益普及的今天,LED驱动电源的电磁干扰(EMI)问题成为了一个不可忽视的挑战。电磁干扰不仅会影响LED灯具的正常工作,还可能对周围电子设备造成不利影响,甚至引发系统故障。因此,采取有效的硬件措施来解决L...

关键字: LED照明技术 电磁干扰 驱动电源

开关电源具有效率高的特性,而且开关电源的变压器体积比串联稳压型电源的要小得多,电源电路比较整洁,整机重量也有所下降,所以,现在的LED驱动电源

关键字: LED 驱动电源 开关电源

LED驱动电源是把电源供应转换为特定的电压电流以驱动LED发光的电压转换器,通常情况下:LED驱动电源的输入包括高压工频交流(即市电)、低压直流、高压直流、低压高频交流(如电子变压器的输出)等。

关键字: LED 隧道灯 驱动电源
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