ht1621_lcd_code.rar_HT1621_ht126 lcd_lcd段式

//开源液晶驱动 WINAVR（GCC） ATMEGA8 4M晶振 #include <avr/io.h> //端口定义开始－－－－－－－－－－－－－－－－－－－－－－－－－－ #define cs_1621_hign PORTC|=1<<3;DDRC|=1<<3 #define cs_1621_low PORTC&=~(1<<3);DDRC|=1<<3 #define wr_1621_hign PORTC|=1<<5;DDRC|=1<<5 #define wr_1621_low PORTC&=~(1<<5);DDRC|=1<<5 #define dat_1621_hign PORTC|=1<<4;DDRC|=1<<4 #define dat_1621_low PORTC&=~(1<<4);DDRC|=1<<4 //端口定义结束－－－－－－－－－－－－－－－－－－－－－－－－－－ //---------------------------------------------------------------------------------------------- //这里是符号对应的显示顺序，也就对应了在HT1621B 数据寄存器内的位置 #define _lcd_BUSY 0 #define _lcd_AC 1 #define _lcd_PLUS 2 #define _lcd_F1 3 #define _lcd_ERROR 4 #define _lcd_DC 5 #define _lcd_MINUS 6 #define _lcd_F2 7 #define _lcd_DOT0 12 #define _lcd_AUTO 20 #define _lcd_RUN 24 #define _lcd_PAUSE 25 #define _lcd_DOT1 26 #define _lcd_COLON0 27 #define _lcd_DOT2 32 #define _lcd_STOP 40 #define _lcd_KPA 44 #define _lcd_SETUP 45 #define _lcd_DOT3 46 #define _lcd_COLON1 47 #define _lcd_DOT4 52 #define _lcd_KG 60 #define _lcd_MM 64 #define _lcd_KM 65 #define _lcd_L 66 #define _lcd_M3 67 #define _lcd_DB 68 #define _lcd_PERCENT 69 #define _lcd_OHOM 70 #define _lcd_DEGREE 71 #define _lcd_A 72 #define _lcd_V 73 #define _lcd_MHZ 74 #define _lcd_KW 75 #define _lcd_MA 76 #define _lcd_MV 77 #define _lcd_KHZ 78 #define _lcd_W 79 #define _lcd_NG 80 #define _lcd_OK 81 #define _lcd_RX 82 #define _lcd_TX 83 #define _lcd_FM 84 #define _lcd_PM 85 #define _lcd_AM 86 #define _lcd_CARD 87 #define _lcd_AT3 88 #define _lcd_AT2 89 #define _lcd_AT1 90 #define _lcd_AT0 91 #define _lcd_LOCK 95 #define _lcd_BELL 103 #define _lcd_COLON2 111 #define _lcd_BAT 119 #define _lcd_MAX 124 #define _lcd_MIN 125 #define _lcd_CH 126 #define _lcd_FAULT 127 //下面是驱动程序定义的一个显示缓冲区，共16 个字节，128 位 unsigned int lcd_buffer[8]={0,0,0,0,0,0,0,0}; //------------------------------------------------------------------------------------------------- #define _nop() asm("nop");asm("nop") #define uchar unsigned char #define BIAS 0x24 #define SYSEN 0x01 #define LCDOFF 0x02 #define LCDON 0x03 #define cs_1621_hign PORTC|=1<<3;DDRC|=1<<3 #define cs_1621_low PORTC&=~(1<<3);DDRC|=1<<3 #define wr_1621_hign PORTC|=1<<5;DDRC|=1<<5 #define wr_1621_low PORTC&=~(1<<5);DDRC|=1<<5 #define dat_1621_hign PORTC|=1<<4;DDRC|=1<<4 #define dat_1621_low PORTC&=~(1<<4);DDRC|=1<<4 void SendBit_1621(uchar data,uchar cnt) //data 的高cnt 位写入HT1621，高位在前 { uchar i; for(i =0; i <cnt; i ++) { if((data&0x80)==0) {dat_1621_low;} else {dat_1621_hign;} wr_1621_low; _nop(); wr_1621_hign; data<<=1; } } void SendDataBit_1621(uchar data,uchar cnt) //data 的低cnt 位写入HT1621，低位在前 { uchar i; for(i =0; i <cnt; i ++) { if((data&0x01)==0) {dat_1621_low;} else {dat_1621_hign;} wr_1621_low; _nop(); wr_1621_hign; data>>=1; } } void SendCmd(uchar command) { cs_1621_low; SendBit_1621(0x80,3); //写入标志码"100" SendBit_1621(command,9); //写入9 位数据,其中前8 位为command 命令,最后1 位任意 cs_1621_hign; } void Write_1621(uchar addr,uchar data) { cs_1621_low; SendBit_1621(0xa0,3); //写入标志码"101" SendBit_1621(addr<<2,6); //写入6 位addr SendDataBit_1621(data,4); //写入data 的低4 位 cs_1621_hign; } void WriteAll_1621(uchar addr,uchar *p,uchar cnt) { uchar i; cs_1621_low; SendBit_1621(0xa0,3); //写入标志码"101" SendBit_1621(addr<<2,6); //写入6 位addr for(i =0; i <cnt; i ++,p++) //连续写入数据 { SendDataBit_1621(*p,8); } cs_1621_hign; } void InitHT1621(void) { cs_1621_hign; wr_1621_hign; dat_1621_hign; SendCmd(0x28); //1/2bias，4comm SendCmd(0x03); //启动内部振荡器 SendCmd(0x01); //打开显示 } //这个函数可以将显示缓冲区刷新到HT1621B；用户可能需要在语句间增加必要的延时 void flood_lcd_data(void) { unsigned int temp_data; cs_1621_low; wr_1621_low; //PRESENT 101 DATA CODE dat_1621_hign; wr_1621_hign; wr_1621_low; dat_1621_low; wr_1621_hign; wr_1621_low; dat_1621_hign; wr_1621_hign; for (unsigned short int i =0;i<=5;i++) { wr_1621_low; dat_1621_low; wr_1621_hign; } for (unsigned short int i =0;i<=7;i++) { temp_data = lcd_buffer[i]; for (unsigned short int j=0;j<=15;j++) { wr_1621_low; if ((temp_data & 0x01) !=0) {dat_1621_hign;} else {dat_1621_low;} wr_1621_hign; temp_data = temp_data >> 1; } } cs_1621_hign; } //向液晶写一个符号 //name：可直接写0~127 的整数，也可以写程序开始定义的标号，如：_lcd_BUSY //display：符号 void lcd_char(unsigned short int name,unsigned short int display) { unsigned short int i,j; i= name/16; j= name%16; if (display == 1) lcd_buffer[i] |= 1<<j; else lcd_buffer[i] &= ~(1<<j); flood_lcd_data(); } //向液晶的数位处写一个0~9 的数 //数位为大数码的左至右为0~5，小数码的右至左为6~9； //number：想显示的数 0~9 //position：显示的数位 //display：显示开关，0 关闭该数位显示（此时number 值无效），1 显示该数位数字 void lcd_number(unsigned short int number,unsigned short int position,unsigned short int display) { switch (position) { case 0: { if (display == 0) lcd_buffer[0] &= 0x10ff; else { lcd_buffer[0] &= 0x10ff; switch (number) { case 0:lcd_buffer[0] |= 0xEB00; break; case 1:lcd_buffer[0] |= 0x6000; break; case 2:lcd_buffer[0] |= 0xC700; break; case 3:lcd_buffer[0] |= 0xE500; break; case 4:lcd_buffer[0] |= 0x6C00; break; case 5:lcd_buffer[0] |= 0xAD00; break; case 6:lcd_buffer[0] |= 0xAF00; break; case 7:lcd_buffer[0] |= 0xE000; break; case 8:lcd_buffer[0] |= 0xEF00; break; case 9:lcd_buffer[0] |= 0xED00; break; }} break; } case 1: { if (display == 0) lcd_buffer[0] &= 0xff10; else { lcd_buffer[1] &= 0xff10; switch (number) { case 0:lcd_buffer[1] |= 0x00EB; break; case 1:lcd_buffer[1] |= 0x0060; break; case 2:lcd_buffer[1] |= 0x00C7; break; case 3:lcd_buffer[1] |= 0x00E5; break; case 4:lcd_buffer[1] |= 0x006C; break; case 5:lcd_buffer[1] |= 0x00AD; break; case 6:lcd_buffer[1] |= 0x00AF; break; case 7:lcd_buffer[1] |= 0x00E0; break; case 8:lcd_buffer[1] |= 0x00EF; break; case 9:lcd_buffer[1] |= 0x00ED; break; }} break; } case 2: lcd_buffer[1] &= 0x0fff; lcd_buffer[2] &= 0xfff1; if (display == 0) break; else switch (number) { case 0: lcd_buffer[1] |= 0xB000; lcd_buffer[2] |= 0x000E; break; case 1: lcd_buffer[2] |= 0x0006; break; case 2: lcd_buffer[1] |= 0x7000; lcd_buffer[2] |= 0x000C; break; case 3: lcd_buffer[1] |= 0x5000; lcd_buffer[2] |= 0x000E; break; case 4: lcd_buffer[1] |= 0xC000; lcd_buffer[2] |= 0x0006; break; case 5: lcd_buffer[1] |= 0xD000; lcd_buffer[2] |= 0x000A; break; case 6: lcd_buffer[1] |= 0xF000; lcd_buffer[2] |= 0x000A; break; case 7: lcd_buffer[1] |= 0x0000; lcd_buffer[2] |= 0x000E; break; case 8: lcd_buffer[1] |= 0xF000; lcd_buffer[2] |= 0x000E; break; case 9: lcd_buffer[1] |= 0xD000; lcd_buffer[2] |= 0x000E; break; } break; case 3: lcd_buffer[2] &= 0xF10F; if (display == 0) break; else switch (number) { case 0:lcd_buffer[2] |= 0x0EB0; break; case 1:lcd_buffer[2] |= 0x0600; break; case 2:lcd_buffer[2] |= 0x0C70; break; case 3:lcd_buffer[2] |= 0x0E50; break; case 4:lcd_buffer[2] |= 0x06C0; break; case 5:lcd_buffer[2] |= 0x0AD0; break; case 6:lcd_buffer[2] |= 0x0AF0; break; case 7:lcd_buffer[2] |= 0x0E00; break; case 8:lcd_buffer[2] |= 0x0EF0; break; case 9:lcd_buffer[2] |= 0x0ED0; break; } break; case 4: lcd_buffer[3] &= 0xFF10; if (display == 0) break; else switch (number) { case 0:lcd_buffer[3] |= 0x00EB; break; case 1:lcd_buffer[3] |= 0x0060; break; case 2:lcd_buffer[3] |= 0x00C7; break; case 3:lcd_buffer[3] |= 0x00E5;