[求助]HT1621为何点不亮（附程序、资料） (amobbs.com 阿莫电子技术论坛) -

xky183 发表于 2005-3-4 13:32:38

[求助]HT1621为何点不亮（附程序、资料）

HT1621接在ATmega8B口

下面的程序是从PIC上移植过来的

请高手指教

*******************************************************************

公司名称：

模块名称：

功能：液晶驱动模块       芯片型号：HT1621

说明：

程序设计：

设计时间：

版本号:

*******************************************************************/

#include <iom8v.h>

#include <math.h>

#include <stdio.h>

#define WR    0B00100000//时钟线

#define DATA 0B00001000//数据线

#define CS    0b00010000//片选线

#define word_long 8

unsigned char TAB_DISPLAY ={1,2};

/*1621的显存是4位*32的,故用16*8位的寄存器

就能满足要求奇数显存放高4位,偶数放低4位*/

/*****************************************************************/

/*LCD系统命令（可选)*/

const char TAB_REST={0b00000001,/*打开系统振荡器命令*/

0b00000011,/*打开LCD 偏压发生器命令*/

0b00000101,/*WDT 溢出标志输出失效命令*/

0b00000110,/*时基输出使能命令*/

0b00011000,/*系统时钟源片内RC振荡器命令*/

0b00101001,/*LCD1/3偏压选项4个公共口命令*/

0b01000000,/*声音频率4KHz命令*/

0b00001001,/*打开声音输出命令*/

0b10100000,/*时基/WDT 时钟输出1Hz命令*/

0b10001000};/*使/IRQ 输出有效命令*/

void send_data(unsigned char data_bus,unsigned char loop);

/********************************************************************

函数名：delay( )

功能：延时

说明 (内部函数)

入口参数：无

返回值：无

设计：       日期：

修改：                   日期：

***********************************************************************/

void delay(void)

{

asm("nop");

asm("nop");

asm("nop");

asm("nop");

asm("nop");

asm("nop");

}

/********************************************************************

函数名：display_start( )

功能：LCD系统初始化

说明启动1621

入口参数：无

返回值：无

设计：                   日期：

修改：                   日期：

***********************************************************************/

void display_start(void)

{

unsigned char t;

PORTB &=~CS;

send_data(0b10000000,3);/*送3位命令模式代码100*/

for(t=0;t<=9;t++)

{

send_data(TAB_REST,9);/*送9位命令代码*/

}

PORTB |=CS;

PORTB |=WR;

}

/********************************************************************

函数名：display( )

功能：写显存

说明连续地址写模式

入口参数：无

返回值：无

设计：                   日期：

修改：                   日期：

***********************************************************************/

void display(void)

{

unsigned char t;

PORTB &=~CS;

PORTB &=~WR;

send_data(0b10100000,3);/*送3位WRITE 模式命令代码101*/

send_data(0,6);/*送6位首地址00h*/

for(t=0;t<=15;t++)

{

send_data(TAB_DISPLAY,word_long);/*送16*8显存数据*/

}

PORTB |=CS;

PORTB |=WR;

}

/********************************************************************

函数名：send_data(data_bus,loop)

功能：数据传送

说明(内部函数)

入口参数：待传数,待传数的位数

返回值：无

设计：                   日期：

修改：                   日期：

***********************************************************************/

void send_data(unsigned char data_bus,unsigned char loop)

{

for(;loop!=0;loop--)

{

delay();

PORTB &=WR;

if((data_bus&0b10000000)==0)

{

PORTB &=~DATA;

}

else

{

PORTB |=DATA;

}

data_bus=data_bus<<1;

PORTB |=WR;

}

}

//****************************************************************

void main(void)

{

DDRB =0XFF;

PORTB =0XFF;

display_start( );

while(1)

{

display( );

}

}

//****************************************************************/
-----此内容被xky183于2005-03-04,20:03:35编辑过

xky183 发表于 2005-3-4 13:34:42

HT1621的datasheet，和网上找的一个应用例子

点击此处打开armok0139902.pdf

点击此处打开armok0139903.pdf

jeiboy 发表于 2005-3-4 15:25:33

void send_data(unsigned char data_bus,unsigned char loop)

{

for(;loop!=0;loop--)

{

dlay();

PORTB &=WR; //是不是要改成 =>PORTB &=~WR;

//

//没详细看程序,再PIC上可以的,再M8上一定可以的.

xky183 发表于 2005-3-4 18:56:06

谢谢楼上的指教

这里确实是我移植的时候的失误，但是修改后还是有问题，还是不显示

xky183 发表于 2005-3-4 20:01:02

问题解决了

等我整理好了就上传详细的资料和调试过程

希望对别人用到的时候少走弯路
-----此内容被xky183于2005-03-04,20:04:51编辑过

armok 发表于 2005-3-4 20:32:15

phantompaul 发表于 2005-3-5 15:47:45

检查一下管脚定义,我的HT1621可以正常工作!

hedi 发表于 2005-4-22 15:56:30

phantompaul 能否把你的HT1621的程序贴出来呀，谢谢

xky183 现在的这个程序是否是测试好使的程序呀谢谢

josn-lu 发表于 2005-4-22 16:19:15

注意硬件时序的时间要求,如建立时间保持时间

avr速度比较快

korren 发表于 2005-4-22 16:23:16

这是我写的,在HOLTEK ht49r30a-1调试通过.

//THIS PROGRAM IS HT1621 (32*4)LCD DISPLAY

#ifndef _HT1621_H

#define _HT1621_H

/* HT1621 mode */

#define READ 0xC0 // Read operation --110

#define WRITE 0xA0 // Write operation -- 101

#define R_M_W 0xA0 // Read-modify-write operation -- 101

#define COMMAND 0x80 // Command operation -- 100

#define MODE 3

#define CMD 9

#define ADDR 6

/* HT1621 command definiton */

#define SYS_DIS 0x00 // Turn off both system oscillatior and LCD bias generator. default

#define SYS_EN 0x01 // Turn on system oscillator

#define LCD_OFF 0x02 // Turn off LCD bias generator. default

#define LCD_ON 0x03 // Turn on LCD bias generator

#define TIMER_DIS 0x04 // Disable time base output

#define WDT_DIS 0x05 // Disable WDT time-out flag output

#define TIMER_EN 0x06 // Enable time base output

#define WDT_EN 0x07 // Enable WDT time-out flag output

#define TONE_OFF 0x08 // Turn off tone outputs. default

#define TONE_ON 0x09 // Turn on tone output

#define CLR_TIMER 0x0C // Clear the contents of time base generator

#define CLR_WDT 0x0E // Clear the contents of WDT stage

#define XTAL_32K 0x14 // System clock source, crystal oscillator

#define RC_256K 0x18 // System clock source, on-chip RC oscillator. default

#define EXT_256K 0x1C // System clock source, external clock source

#define BIAS22 0x20 // LCD 1/2 bias, 2 commons option

#define BIAS23 0x24 // LCD 1/2 bias, 3 commons option

#define BIAS24 0x28 // LCD 1/2 bias, 4 commons option

#define BIAS32 0x21 // LCD 1/3 bias, 2 commons option

#define BIAS33 0x25 // LCD 1/3 bias, 3 commons option

#define BIAS34 0x29 // LCD 1/3 bias, 4 commons option

#define TONE_4K 0x40 // Tone frequency, 4KHZ

#define TONE_2K 0x60 // Tone frequency, 2KHz

#define IRQ_DIS 0x80 // Disable IRQ output. default

#define IRQ_EN 0x88 // Enable IRQ output

#define F1 0xA0 // Time base/WDT clock output:1Hz, The WDT time-out flag after:4s

#define F2 0xA1 // Time base/WDT clock output:2Hz, The WDT time-out flag after:2s

#define F4 0xA2 // Time base/WDT clock output:4Hz, The WDT time-out flag after:1s

#define F8 0xA3 // Time base/WDT clock output:8Hz, The WDT time-out flag after:1/2s

#define F16 0xA4 // Time base/WDT clock output:16Hz, The WDT time-out flag after:1/4s

#define F32 0xA5 // Time base/WDT clock output:32Hz, The WDT time-out flag after:1/8s

#define F64 0xA6 // Time base/WDT clock output:64Hz, The WDT time-out flag after:1/16s

#define F128 0xA7 // Time base/WDT clock output:128Hz, The WDT time-out flag after:1/32s. default

#define NORMAL 0xE3 // Normal mode. default

/* I/O definition for HT1621 */

/*

#ifdef HT1621

#define HT1621_CS RB1

#define HT1621_RD RB2

#define HT1621_WR RB3

#define HT1621_DATA RB4

#endif

*/

/*

//================================================================

void WriteMode(unsigned char mode)

{

unsigned char i;

for(i=3; i>0; i--)

{

HT1621_WR=0;

if(mode & 0x80) HT1621_DATA=1;

else HT1621_DATA=0;

mode <<=1; //MSB first

NOP();

HT1621_WR=1;

NOP();

NOP();

NOP();

NOP();

}

}

//================================================================

void WriteCmd(unsigned char cmd)

{

unsigned char i;

for(i=9; i>0; i--)

{

HT1621_WR=0;

if(cmd & 0x80) HT1621_DATA=1;

else HT1621_DATA=0;

cmd <<=1; //MSB first

NOP();

HT1621_WR=1;

NOP();

NOP();

NOP();

NOP();

}

}

//================================================================

void WriteAdr(unsigned char adr)

{

unsigned char i;

for(i=6; i>0; i--)

{

HT1621_WR=0;

if(adr & 0x80) HT1621_DATA=1;

else HT1621_DATA=0;

adr <<=1; //MSB first

NOP();

HT1621_WR=1;

NOP();

NOP();

NOP();

NOP();

}

}

*/

//================================================================

void _1621Write(unsigned char value,unsigned char TYPE)

{

unsigned char i;

for(i=TYPE; i>0; i--)

{

HT1621_WR=0;

if(value & 0x80) HT1621_DATA=1;

else HT1621_DATA=0;

value <<=1; //MSB first

NOP();

HT1621_WR=1;

NOP();

NOP();

NOP();

NOP();

}

}

//================================================================

void WriteData(unsigned char dat)

{

unsigned char i;

for(i=4; i>0; i--)

{

HT1621_WR=0;

if(dat & 0x01) HT1621_DATA=1;

else HT1621_DATA=0;

dat >>=1; //MSL first

NOP();

HT1621_WR=1;

NOP();

NOP();

NOP();

NOP();

}

}

//================================================================

unsigned char ReadByte(void)

{

unsigned char i;

unsigned char value;

for(i=4; i>0; i--)

{

HT1621_RD=0;

value >>=1; //MSL first

if(HT1621_DATA) value |= 0x80;

NOP();

HT1621_RD=1;

NOP();

NOP();

NOP();

NOP();

}

value = (value >>4) & 0x0f;

return (value);

}

//==================================================================

unsigned char HT1621Read(unsigned char adr)

{

unsigned char dt;

_1621Write(READ,MODE);

_1621Write(adr,ADDR);

//HT1621_WR=1;

dt=ReadByte();

return dt;

}

//==================================================================

void HT1621ReadN(unsigned char StartAdr, unsigned char *p, unsigned char n)

{

unsigned char i;

HT1621_CS=0;

_1621Write(READ,MODE);

_1621Write(StartAdr,ADDR);

for(i=n; i>0; i--)

{

p=ReadByte();

}

HT1621_CS=1;

}

//==================================================================

void HT1621Write(unsigned char adr, unsigned char dat)

{

_1621Write(WRITE,MODE);

_1621Write(adr,ADDR);

WriteData(dat);

}

//===================================================================

void HT1621WriteN(unsigned char StartAdr, unsigned char *p, unsigned char n)

{

unsigned char i;

HT1621_CS=0;

_1621Write(WRITE,MODE);

_1621Write(StartAdr,ADDR);

for(i=n; i>0; i--)

{

WriteData(p);

}

HT1621_CS=1;

}

void HT1621Init(unsigned char StartAdr, unsigned char n)

{

unsigned char i;

HT1621_CS=0;

_1621Write(WRITE,MODE);

_1621Write(StartAdr,ADDR);

for(i=n; i>0; i--)

{

WriteData(0x00);

}

HT1621_CS=1;

}

//====================================================================

void Read_Mod_Write(unsigned char adr,unsigned char dt)

{

unsigned char value;

_1621Write(WRITE,MODE);

_1621Write(adr,ADDR);

value=ReadByte();

if(value != dt)

{

WriteData(dt);

}

}

//=====================================================================

void HT1621Comm(unsigned char cmd)

{

_1621Write(COMMAND,MODE);

_1621Write(cmd,CMD);

}

#endif

//End define _HT1621_H

#include "ht49r30a-1.h"

//#include <pic.h>

#define HT1621_CS _pa0

#define HT1621_RD _pa1

#define HT1621_WR _pa2

#define HT1621_DATA _pa3

#define NOP() _nop()

#include "HT1621.h"

const unsigned char LcdDig[]={0xf3, 0x60, 0xb5, 0xf4, 0x66, 0xd6, 0xd7, 0x72, 0xF7, 0xF6};

                           //0,1, 2, 3, 4, 5, 6, 7, 8, 9

const unsigned char Fan_Led[]={0x01, 0x03, 0x07, 0x0f};

                           //Low,Mid,High, Auot

                           //STB,OPER, ESF,Backlight_Green ;address at 0x08-0x0b

                           //BK_Red, Timer, Filter          ;address at 0x0C-0x0e



#define LOW_FAN 0x7F //Display Lowfan constant

#define MID_FAN 0xBF //Display Mid fan constant

#define HIGH_FAN 0xDF //Display Hiht fan constant

#define AUTO_FAN 0xEF //Display Auto fan constant

#define DISP_C 0xEF //Temperature display constant

#define STB_LED 0x7F

#define OPER_LED 0xBF

#define ESF_LED 0xDF

#define BK_GREEN 0xEF

#define BK_RED 0x7F

#define TIMER_LED 0xBF

#define FILTER_LED 0xDF

#define Dig0_StartAdr (0x02<<2) //Address from 0x02 to 0x03

#define Dig1_StartAdr (0x04<<2) //Address from 0x04 to 0x05

#define Fan_Adr (0x00<<2) //Address at 0x00

#define F_Adr (0x00)

#define Disp_C_Adr (0x04<<2)

#define Led_Start_Adr (0x08<<2) //

void delayms(unsigned int n)

{

unsigned int i,j;

for(i=65000; i>0; i--)

{

for(j=65000; j>0; j--)

{

for(; n>0; n--)

;

}

}

}

void IOInit(void)

{

}

void main(void)

{

IOInit();

delayms(1000);

HT1621_CS=0;

_1621Write(COMMAND,MODE);

_1621Write(SYS_DIS,CMD);

_1621Write(LCD_OFF,CMD);

HT1621_CS=1;

delayms(1000);

HT1621Init(0, 15);

HT1621_CS=0;

_1621Write(COMMAND,MODE);

_1621Write(SYS_EN,CMD);

_1621Write(LCD_ON,CMD);

_1621Write(RC_256K,CMD);

_1621Write(BIAS34,CMD);

HT1621_CS=1;

while(1)

{

unsigned char i,j;

unsigned char temp;

HT1621_CS=0;

for(j=0,i=0; i<10; i++)

{

HT1621_CS=0;

HT1621Write(Dig0_StartAdr,LcdDig);

HT1621_CS=1;

temp = LcdDig>>4;

HT1621_CS=0;

HT1621Write((Dig0_StartAdr+(1<<2)),temp);

HT1621_CS=1;

NOP();

HT1621_CS=0;

HT1621Write(Dig1_StartAdr,LcdDig);

HT1621_CS=1;

temp = LcdDig>>4;

HT1621_CS=0;

HT1621Write((Dig1_StartAdr+(1<<2)),temp);

HT1621_CS=1;

if(i >4) j=0;

if(j > 4) j=0;

HT1621_CS=0;

//HT1621Write((Led_Start_Adr+(i<<2)),Fan_Led);

HT1621Write(Fan_Adr,Fan_Led);

HT1621_CS=1;

j++;

delayms(65000);

}

HT1621_CS=0;

HT1621Write(Disp_C_Adr, DISP_C);

HT1621_CS=1;

}

}

deepin 发表于 2009-2-23 17:10:19

MARK,学习了!!!

psbhero 发表于 2012-5-24 14:48:56

MARK MARK MARK

xqn2012 发表于 2012-12-17 20:13:52

MARK一下，明天再继续研究

RainKing 发表于 2013-9-12 17:46:54

正需要..............

qwerwe 发表于 2013-9-22 10:42:36

看看……

1633994509 发表于 2013-9-22 11:12:43

同样想知道这个怎么实现，有经验的给介绍下给个思路也可以

feezai 发表于 2013-12-24 15:51:12

学习了，但是俺的ht1621死活读不出数据。

a515509429 发表于 2015-9-23 15:39:42

标记，准备学习~

1125526801 发表于 2017-9-14 23:07:59

korren 发表于 2005-4-22 16:23
这是我写的,在HOLTEK ht49r30a-1调试通过.

//THIS PROGRAM IS HT1621 (32*4)LCD DISPLAY

参考一下。谢谢分享

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[求助]HT1621为何点不亮（附程序、资料）