HT1621B 通用程序集锦

/*AT89C51单片机控制HT1621B驱动LCD* （全显示程序） */#include #include #define BIAS 0X50 /1/2偏压，4背极/#define RC256 0X30 /系统时钟选择为片内RC振荡器#define RC256 0X38#define WDTDIS1 0X0A /禁止WDT溢出标志输出#define TIMERDIS 0X08 /时基输出禁能#define SYSEN 0X02 /打开系统时钟#define LCDON 0X06 /打开偏压发生器#define SYSDIS 0X00 /关闭系统时钟和偏压发生器#define _NOP() _nop_()sbit LED=P20;sbit CS=P27;sbit WRD=P26;sbit DATA=P25;#define uchar unsigned char#define uint unsigned intvoid SENDBYTE (uchar dat); void SENDBIT (uchar dat,uchar bitcnt); /*延时子函数*/void delay1s() /延时1Suchar i;uint j;for(i=0;i10;i+) for(j=0;j1300;j+);/*HT1621B初始化*/void START_HT1621() /初始化HT1621CS=1;WRD=1;DATA=1;/delay();_NOP();CS=0;CS=0;WRD=0;WRD=0;/*发送命令子函数A*/void SENDCOMA(uchar com) /发送命令A，ID=100+0START_HT1621();SENDBIT(0X80,4);SENDBYTE(com);/*发送命令子函数B*/void SENDCOMB(uchar adr) /发送命令B，发送显示数据START_HT1621(); /HT1621初始化SENDBIT(0XA0,4); /发送写数据ID：101+6位LCD之RAM地址第1位SENDBIT(adr,5); /然后发送地址后5位/*发送命令子函数C*void SENDCOMC(uchar com) /发送命令C，ID=100+1START_HT1621();SENDBIT(0X90,4);SENDBYTE(com);/*按位发送数据子函数*/void SENDBIT (uchar dat,uchar bitcnt) /按位发送数据uchar i;for(i=0;ibitcnt;i+) if(dat&0x80)=0X00) /从最高位发送 DATA=0; else DATA=1; /delay(); _NOP(); WRD=1; /在WRD的上升沿，数据写入HT1621B /delay(); _NOP(); WRD=0; dat=dat1; /*发送字节数据子函数*/void SENDBYTE (uchar dat) /发送字节数据SENDBIT(dat,8);/*LCD显示子函数*/void display(uchar dat) /LCD显示uchar i;SENDCOMB(0X00); /从RAM的0X00地址开始放入数据SENDBYTE(dat);SENDBYTE(dat);for (i=0;i2;i+) SENDBYTE(dat); /从SEG0开始显示数据 /*HT1621B初始化设置*/void SETUP_HT1621() /HT1621偏压、背极、工作方式设置SENDCOMA(BIAS); SENDCOMA(RC256);SENDCOMA(SYSEN);delay1s();SENDCOMA(LCDON);SENDCOMA(WDTDIS1);SENDCOMA(TIMERDIS); /*主函数*/main() /主函数 LED=1; SETUP_HT1621(); while(1) display(0XFF); /全显示 各位大牛下午好，我用STC12C5204单片机控制1621驱动液晶程序调了几天都没进展，显示的不知道什么乱七八糟的东西，好像命令根本写不进去，COM0和com1是个1v不到的电平，com3为3点几V的电平，com4有时有波形刷我自己写的程序就是这个样子，SEGMENT一部分有波形，其余就是一个电平打电话咨询合泰技术，让我搞他们的范例，于是我修改了下，还是老样子大家帮我看看是什么问题，谢谢了下面的就是从合泰网上下的范例，我稍微修改了下，基本是原封不动的/STC12C5204AD单片机控制HT1621B驱动LCD#include #include #include #define BIAS 0X52 /1/3偏压，4背极#define RC256K 0X30 /系统时钟选择为片内RC振荡器#define WDTDIS1 0X0A /禁止WDT溢出标志输出#define TIMERDIS 0X08 /时基输出禁止#define SYSEN 0X02 /打开系统时钟#define SYSDIS 0X00 /关闭系统时钟和偏压发生器#define LCDON 0X06 /打开LCD偏压发生器#define LCDOFF 0X04 /关闭LCD偏压发生器#define TONEON0X12 /打开音频输出#define TONEOFF 0X10 /关闭音频输出#define CS P3_2#define WR P3_4#define DATA P3_5#define uchar unsigned char#define uint unsigned int/*延时子函数*/void delay(uchar i) /j=12延时约4.3uswhile(i-) uchar j=0; while(j8) j+; void SendBit_1621(uchar dat ,uchar cnt)uchar i;for(i =0; i cnt; i +)if(dat&0x80)=0) DATA=0;else DATA=1;WR=0;delay(2);WR=1; dat=dat1;void SendDataBit_1621(uchar dat,uchar cnt) uchar i;for(i =0; i 1;void SendCmd(uchar command)CS=0;_nop_();_nop_();SendBit_1621(0x80,4); SendBit_1621(command,8);CS=1; void Write_1621(uchar addr,uchar dat)CS=0;_nop_();_nop_();SendBit_1621(0xa0,3);SendBit_1621(addr,6); SendDataBit_1621(dat,4);CS=1;void WriteAll_1621(uchar addr,uchar *p,uchar cnt)uchar i;CS=0;_nop_();_nop_();SendBit_1621(0xa0,3); SendBit_1621(addr,6); for(i =0; i cnt; i +,p+) SendDataBit_1621(*p,8);CS=1;/*主函数*/main() uchar a10;a0=0xFF;a1=0xFF;a2=0xFF;a3=0xFF;a4=0xFF;a5=0xFF;a6=0xFF;a7=0xFF;a8=0xFF;a9=0xFF;a10=0xFF;a11=0xFF;a12=0xFF;a13=0xFF;a14=0xFF;a15=0xFF;SendCmd(BIAS); SendCmd(SYSEN); SendCmd(LCDON); / SendCmd(RC256K);WriteAll_1621(0,a,16); / SendCmd(LCDOFF);LCD驱动程序 适用于HT1621/=#define Lcd_Delay _nop_();_nop_();_nop_();_nop_();_nop_();_nop_()voidLcd_Data(uchar Start,uchar cData)/将数据当中的字节与LCD上的进行同步/ Start -要开始同页面地址,每个页面为4个有效位,总其为32X4字节/ Length -要同步的页面数量 uchar i; LCD_CS=0; Lcd_Delay; Lcd_Delay; Lcd_Delay; /Send ID 101B LCD_CLK=0; Lcd_Delay; LCD_IO=1; Lcd_Delay; LCD_CLK=1; Lcd_Delay; LCD_CLK=0; Lcd_Delay; LCD_IO=0; Lcd_Delay; LCD_CLK=1; Lcd_Delay; LCD_CLK=0; Lcd_Delay; LCD_IO=1; Lcd_Delay; LCD_CLK=1; Lcd_Delay; /Send Address 6bit Start=Start*2; for(i=0;i6;i+) if(Start&0x20) LCD_IO=1; else LCD_IO=0; Lcd_Delay; LCD_CLK=0; Lcd_Delay; Start=Start1; LCD_CLK=1; Lcd_Delay; /Send data 8bit for(i=0;i1; LCD_CLK=1; Lcd_Delay; LCD_CS=1; Lcd_Delay;/=voidLcd_Command(uchar Command) /向指定的LCD当中写入一个命令/每个命令应以100三个位为起始,命令长度为9位,实际有效位为8位,因此在最后补一个0/ LcdSelect-LCD的片选确定,取值为0,1,2/ Command-要写入的8位命令 uchar i; LCD_CS=0; Lcd_Delay; Lcd_Delay; Lcd_Delay; /Send ID 100B LCD_CLK=0; Lcd_Delay; LCD_IO=1; Lcd_Delay; LCD_CLK=1; Lcd_Delay; LCD_CLK=0; Lcd_Delay; LCD_IO=0; Lcd_Delay; LCD_CLK=1; Lcd_Delay; LCD_CLK=0; Lcd_Delay; LCD_IO=0; Lcd_Delay; LCD_CLK=1; Lcd_Delay; for(i=0;i8;i+) LCD_CLK=0; Lcd_Delay; if(Command&0x80) LCD_IO=1; else LCD_IO=0; Command=Command1; Lcd_Delay; LCD_CLK=1; Lcd_Delay; /最后补一个0 LCD_CLK=0; Lcd_Delay; LCD_IO=0; Lcd_Delay; LCD_CLK=1; Lcd_Delay; LCD_CS=1; Lcd_Delay;/=voidLcd_Refresh(void) /重新对LCD进行刷屏 uchar i; for(i=0;iLCD_BUFF_MAX;i+) Lcd_Data(i,lcd.buffi);/=voidLcd_Cls(void) /清空LCD显示区/功能: 清空LCD显示区/返值: 无/入口: cSelectIc LCD的片选,取值为0,1,2 uchar i; for(i=0;iLCD_BUFF_MAX;i+) lcd.buffi=0; Lcd_Refresh();/=voidLcd_Init(void)/初始化LCD,二个屏都进行处理,同时进行清屏 LCD