NHD - 0216K1Z - FSW - FBW - L字符液晶顯示模塊技術(shù)解析

一、產(chǎn)品概述

NHD - 0216K1Z - FSW - FBW - L是Newhaven Display International, Inc.生產(chǎn)的一款字符液晶顯示模塊。它具有2行16字符的顯示能力，內(nèi)置ST7066U控制器，采用+5.0V電源供電，具備1/16 duty、1/5 bias的特性，并且符合RoHS標(biāo)準(zhǔn)。

文件下載：NHD-0216K1Z-FSW-FBW-L.pdf

二、模塊特性

2.1 功能特點(diǎn)

• 顯示能力：能夠清晰顯示2行16個(gè)字符，滿足基本的信息展示需求。
• 內(nèi)置控制器：ST7066U控制器集成度高，方便開(kāi)發(fā)人員進(jìn)行控制和驅(qū)動(dòng)。
• 電源與參數(shù)：+5.0V電源供電，1/16 duty和1/5 bias的設(shè)置確保了穩(wěn)定的顯示效果。
• 環(huán)保標(biāo)準(zhǔn)：符合RoHS標(biāo)準(zhǔn)，符合環(huán)保要求。

2.2 引腳描述

推薦使用2.54mm間距的引腳作為L(zhǎng)CD連接器。

三、電氣與光學(xué)特性

3.1 電氣特性

3.2 光學(xué)特性

四、控制器信息

五、指令表

六、時(shí)序特性

6.1 從MPU向ST7066U寫(xiě)數(shù)據(jù)

6.2 從ST7066U向MPU讀數(shù)據(jù)

七、初始化程序

7.1 8位初始化

void command(char i) 
{ 
    P1 = i; //put data on output Port
    D_I = 0; //D/I=LOW : send instruction 
    R_W = 0; //R/W=LOW:Write
    E = 1;
    Delay(1);
    Delay(1); //enable pulse width >= 300ns 
    E = 0; //Clock enable: falling edge 
} 

void write(char i) 
{
    E = 0;
    P1 = i;
    D_I = 1; //D/I=HIGH : send data
    R_W = 0; //R/W=LOW:Write
    E = 1; 
    Delay(1); //enable pulse width >= 300ns 
    Delay(1);
    E = 0; //Clock enable:falling edge
} 

void init() 
{
    E = 0; 
    Delay(100);
    Delay(100); //Wait >40 msec after power is applied 
    command(0x30); //command 0x30 = Wake up 
    command(0x30);
    Delay(30);
    Delay(30); //must wait 5ms, busy flag not available 
    command(0x30); //command 0x30 = Wake up #2
    Delay(10);
    Delay(10); //must wait 160us, busy flag not available 
    command(0x30); //command 0x30 = Wake up #3
    Delay(10);
    Delay(10); //must wait 160us, busy flag not available 
    command(0x38);
    command(0x38); //Function set: 8-bit/2-line 
    command(0x10); 
    command(0x0c); 
    command(0x06); //Set cursor //Display ON; Cursor ON //Entry mode set
}

7.2 4位初始化

void command(char i) 
{
    P1 = i; //put data on output Port
    D_I = 0; //D/I=LOW : send instruction 
    Nybble(); 
    R_W = 0; 
    i = i = 300ns 
    E = 0; //Clock enable:falling edge
}

void init() 
{
    P1 = 0; 
    P3 = 0; 
    Delay(100);
    Delay(100); //Wait >40 msec after power is applied 
    P1 = 0x30;
    Delay(30); //must wait 5ms, busy flag not available 
    Delay(30);
    Nybble(); //command 0x30 = Wake up
    Delay(10);
    Delay(10); //must wait 160us, busy flag not available 
    Nybble(); //command 0x30= Wake up #2
    Delay(10);
    Delay(10); //must wait 160us, busy flag not available 
    Nybble(); //command 0x30 = Wake up #3
    Delay(10);
    Delay(10); //can check busy flag now instead of delay 
    P1 = 0x20; 
    Nybble(); //Function set: 4-bit interface 
    Nybble();
    command(0x28);
    command(0x28); //Function set: 4-bit/2-line 
    command(0x10); 
    command(0x0F); //Set cursor
    command(0x0F); //Display ON; Blinking cursor 
    command(0x06); //Entry Mode set
}

八、質(zhì)量信息與注意事項(xiàng)

8.1 質(zhì)量測(cè)試