谷歌网站为什么打不开,wordpress扫码跳转,盐城市网站建设,网络科技公司排名目录硬知识LCD12864简介主控芯片ST7920的功能是#xff1a;驱动芯片ST7921的功能是#xff1a;引脚功能时序并行通信串行通信指令存储结构操作取模软件的配置示例程序st7920.cst7920.h测试程序显示图片图片1实验现象图片2实验现象显示字符英文实验现象中文实验现象Proteus的仿…
目录硬知识LCD12864简介主控芯片ST7920的功能是驱动芯片ST7921的功能是引脚功能时序并行通信串行通信指令存储结构操作取模软件的配置示例程序st7920.cst7920.h测试程序显示图片图片1实验现象图片2实验现象显示字符英文实验现象中文实验现象Proteus的仿真普中51-单核-A2 STC89C52 Windows 10 20H2 Proteus 8 Frofessional v8.9 SP2 Keil uVision V5.29.0.0 PK51 Prof.Developers Kit Version:9.60.0.0 移植自发布一个ST7920的LCD12864 Proteus仿真模型,支持串口和4bit模式通讯 —— cdhigh 参考资料《LCD12864液晶显示模块数据手册带字库》
硬知识
LCD12864简介 LCD12864液晶屏背面3个COB牛屎堆一个主控芯片ST7920另外两个是移位芯片ST7921.
主控芯片ST7920的功能是
与我们的单片机并行通信。字库ROM、CGROMDDRAM等。行扫描COM0 ~ COM31…列扫描SEG0 ~ SEG63…串行方式发送数据到两片ST7921驱动芯片。
驱动芯片ST7921的功能是
接收来自ST7920的串行信号转化成并口驱动电压。根据信号要求两片芯片分别驱动SEG64~ SEG159SEG160~ SEG255 LCD12864它本质上是256x32点的矩阵屏32行扫描是COM0-COM31列字节是SEG0-SEG255总共32字节每个字节8bit总共256位。. 原本左右拼接的256x32点变成了上下拼接的128x64点。如下图所示
引脚功能 时序
并行通信 串行通信
如图所用SPI应为模式0其中RW口为MOSIE口为SCLKRS口为CSPSB应接地。
指令 存储结构 操作 uint8_t code LCD12864_Write_CGRAM[]
{
0x60,0x00,0x91,0xF4,0x96,0x0C,0x6C,0x04,
0x08,0x04,0x18,0x00,0x18,0x00,0x18,0x00,
0x18,0x00,0x18,0x00,0x18,0x00,0x08,0x00,
0x0C,0x04,0x06,0x08,0x01,0xF0,0x00,0x00
};//温度符号的 32 个字节字模取模软件的配置 示例程序
VSS —— GND
VDD —— VCC(5V or 3.3V)
V0 亮度调节
CS(RS) —— 接VCC持续高电平一直选通。
MOSI(R/W)—— 接MOSI
SCLK(E) —— 接SCLK
PSB —— 接GND 串行模式
BLA —— VCC(5V or 3.3V)
BLK —— 接GND
剩余引脚不接留空stdint.h见【51单片机快速入门指南】1基础知识和工程创建 软件SPI程序见【51单片机快速入门指南】5软件SPI SPI选择模式0。 根据电路修改Soft_SPI.h
模式选择在st7920.h内
st7920.c
//ST7920 LCD 驱动
#include st7920.h
#include ./Soft_SPI/Soft_SPI.hvoid delay_ms(int i);void st7920_delay()
{}void LCD12864_CS_H() //若SPI总线上只有屏幕则可接VCC
{LCD12864_CS 1;
}void LCD12864_CS_L()
{LCD12864_CS 0;
}void LCD12864_PSB_L() //接GND或给低电平以实现SPI通讯
{LCD12864_PSB 0;
}void LCD12864_RS_H()
{RS_Pin 1;
}void LCD12864_RS_L()
{RS_Pin 0;
}void LCD12864_WR_H()
{WR_Pin 1;
}void LCD12864_WR_L()
{WR_Pin 0;
}void LCD12864_EN_H()
{EN_Pin 1;
}void LCD12864_EN_L()
{EN_Pin 0;
}uint8_t LCD12864_Port_Read()
{return LCD12864_Port;
}//并口模式下写八位
void LCD12864_Port_Write_8B(uint8_t Data)
{LCD12864_Port Data;
}//4位模式下写半个字节高4位
void LCD12864_Port_Write_4B(uint8_t Data)
{LCD12864_Port 0x0F;LCD12864_Port | Data;
}//初始化
void LCD_init(void)
{
#if LCD_INTERFACE MODE_SPILCD12864_PSB_L();
#endifdelay_ms(50);LCD_write_command(0x33);delay_ms(1);LCD_write_command(0x32);delay_ms(1);
#if LCD_INTERFACE MODE_4BITLCD_write_command(0x28);delay_ms(1);LCD_write_command(0x28);delay_ms(1);
#endifLCD_write_command(0x08); //显示关delay_ms(1); //大于100uS的延时程序LCD_write_command(0x10); //光标设置delay_ms(1); //大于100uS的延时程序LCD_write_command(0x0C); //显示开delay_ms(1); //大于100uS的延时程序LCD_write_command(0x01); //Display Cleardelay_ms(10); //大于10mS的延时程序LCD_write_command(0x06); //光标从右向左加1位移动delay_ms(10); //大于10mS的延时程序
}//写命令
void LCD_write_command(unsigned char command)
{
#if LCD_INTERFACE MODE_SPILCD2_spi_write_byte(0xf8);st7920_delay();LCD2_spi_write_byte_standard(command);
#elseLCD12864_RS_L(); //RS0LCD_write_byte(command);delay_ms(1);
#endif
}//写数据
void LCD_write_data(unsigned char Data)
{
#if LCD_INTERFACE MODE_SPILCD2_spi_write_byte(0xfa);st7920_delay();LCD2_spi_write_byte_standard(Data);
#elseLCD12864_RS_H(); //RS1LCD_write_byte(Data);
#endif
}//并口模式写一个字节到控制器
void LCD_write_byte(unsigned char Data)
{
#if LCD_INTERFACE MODE_4BITLCD_write_half_byte(Data);Data 4;LCD_write_half_byte(Data);
#elseLCD12864_Port_Write_8B(Data);LCD12864_WR_L();LCD12864_EN_H(); //EN端产生一个由低电平变高电平写LCDst7920_delay();LCD12864_EN_L(); //EN端产生一个由高电平变低电平写LCDst7920_delay();LCD12864_WR_H();
#endif
}//4位模式下写半个字节高4位
void LCD_write_half_byte(unsigned char half_byte)
{LCD12864_Port_Write_4B(half_byte);LCD12864_WR_L();LCD12864_EN_H(); //EN端产生一个由低电平变高电平写LCDst7920_delay();LCD12864_EN_L(); //EN端产生一个由高电平变低电平写LCDst7920_delay(); LCD12864_WR_H();
}//串行模式下写一个字节
void LCD2_spi_write_byte(unsigned char Data)
{LCD12864_CS_H();SOFT_SPI_RW_MODE0(Data);LCD12864_CS_L();
}//标准处理一个字节要拆成两个字节发送
void LCD2_spi_write_byte_standard(unsigned char Data)
{LCD2_spi_write_byte(Data 0xf0);LCD2_spi_write_byte((Data 4) 0xf0);
}//并口模式下读数据
unsigned char LCD_read_data(void)
{unsigned char Data;LCD12864_RS_H();Data LCD_read_byte();#if LCD_INTERFACE MODE_4BITData (Data 0xf0) | ((LCD_read_byte() 4) 0x0f);
#endifreturn Data;
}//并口模式下读状态
unsigned char LCD_read_status(void)
{unsigned char Data;LCD12864_RS_L();Data LCD_read_byte();
#if LCD_INTERFACE MODE_4BITData (Data 0xf0) | ((LCD_read_byte() 4) 0x0f);
#endifreturn Data;
}//并口模式下读一个字节如果是4bit模式则只有高4位是有效的
unsigned char LCD_read_byte(void)
{unsigned char Data;LCD12864_WR_H();LCD12864_EN_L(); //EN端产生上升沿ST7920开始输出数据st7920_delay();LCD12864_EN_H();st7920_delay();Data LCD12864_Port_Read();LCD12864_EN_L();return Data;
}//设置字符模式的地址
//第一行首地址0x80
//第二行首地址0x800x10 (0x90)
//第三行首地址0x800x08 (0x88)
//第四行首地址0x800x100x08 (0x98)
void LCD_set_text_address(unsigned int rowCol)
{unsigned char start 0x80;unsigned char row (rowCol 8) 0xff;unsigned char col rowCol 0xff;if (row 1) {start 0x90;}if (row 2) {start 0x88;}if (row 3) {start 0x98;}LCD_write_command(start col);
}//将字符模式的行列号转换为内部的XY坐标返回的高字节为X低字节为Y
//row (HIGH_BYTE(rowCol)): 行号0-3
//col (LOW_BYTE(rowCol)): 列号0-7
unsigned int LCD_rowCol_to_inter_Xy(unsigned int rowCol)
{unsigned char row (rowCol 8) 0x03;unsigned char col rowCol 0x07;unsigned char x col 8 * (unsigned char)(row / 2);unsigned char y (row * 16) 0x1f;return (x 8) | y;
}//设置绘图模式的地址
//x: 0-127 (注意x必须为16的整数倍)
//y:0-63
void LCD_set_graphic_address(unsigned char x, unsigned char y)
{unsigned char xWord, downPage, yInter;x 0x7f;y 0x3f;xWord x / 16; //内部X地址一个地址管16位downPage y / 32; //0:上半屏 1:下半屏yInter y 0x1f; //内部Y坐标LCD_write_command(0x80 yInter); //先设置Y地址LCD_write_command(0x80 xWord 8 * downPage);
}//显示清屏函数
void LCD_clear(void)
{unsigned char x, y;LCD_write_command(0x08); //避免清屏过程中闪烁先关显示st7920_delay();LCD_write_command(0x01); //清DDRAM//清GDRAM,12864仅用了一半的GDRAM清一半即可//如果没有使用到绘图GDRAM也可以不清GDRAM省点时间和代码空间LCD_startGraphic();for (y 0; y 32; y){LCD_write_command(0x80 y); //yLCD_write_command(0x80 0); //xfor (x 0; x 16; x){LCD_write_data(0x00);LCD_write_data(0x00);}}LCD_endGraphic();LCD_write_command(0x0C); //显示开delay_ms(10);
}//开启扩展命令的绘图指令
void LCD_startGraphic(void)
{
#if LCD_INTERFACE MODE_4BITLCD_write_command(0x24); //扩展指令集LCD_write_command(0x26); //绘图命令开启
#elseLCD_write_command(0x34); //扩展指令集LCD_write_command(0x36); //绘图命令开启
#endif
}//结束扩展命令的绘图指令(可选)
void LCD_endGraphic(void)
{
#if LCD_INTERFACE MODE_4BITLCD_write_command(0x26); //绘图命令关闭LCD_write_command(0x20); //回到基本指令
#elseLCD_write_command(0x36); //绘图命令关闭LCD_write_command(0x30); //回到基本指令
#endif
}//反白或取消反白对应16X16区域一般用于菜单选择
//row (HIGH_BYTE(rowCol)): 行号0-3
//col (LOW_BYTE(rowCol)): 列号0-7
//charNum: 要反白的字符数量注意不要超过行末
//ST7920内置的反白作用不大它只能整行反白而且反白第一行第三行也会一起反白
//所以此函数使用另外的方法实现绘图区对应的位全部写0xff异或后即可反白
void LCD_Inverse_16X16(unsigned int rowCol, unsigned char charNum, unsigned char reverse)
{unsigned char i, ch;unsigned int xy LCD_rowCol_to_inter_Xy(rowCol);unsigned char x (xy 8) 0xff;unsigned char y xy 0x3f;LCD_startGraphic();for (i 0; i 16; i) //把对应字符的GDRAM全部写成0xff异或后就是反白{LCD_write_command(0x80 y i); //先写垂直地址yLCD_write_command(0x80 x); //xfor (ch 0; ch charNum; ch){LCD_write_data(reverse ? 0xff : 0x00);LCD_write_data(reverse ? 0xff : 0x00);}}LCD_endGraphic();
}//显示一个字符12864可以显示4行每行8个汉字或每行16个字母
//col: 列号0-15
//row: 行号0-3
//字符编码小于0x80的为ASCII否则为汉字汉字编码高字节在左边
void LCD_write_char(unsigned int rowCol, unsigned int Code)
{unsigned char high (Code 8) 0xff;unsigned char low Code 0xff;LCD_set_text_address(rowCol);if (Code 0x80){LCD_write_data(high);}LCD_write_data(low);
}//显示一个字符串注意不要超过一行的长度8个汉字或16个字母
//rowCol: 左8位为行(0-3)右8位为列(0-15)
void LCD_write_string(unsigned int rowCol, const char * p)
{LCD_set_text_address(rowCol);while (*p ! 0){LCD_write_data(*p);p;}
}void LCD_Draw_Bmp(unsigned char *pImage, unsigned char col, unsigned char row, unsigned char x0, unsigned char y0)
{unsigned char i, y;LCD_startGraphic();for (y y0; y row y0; y){LCD_set_graphic_address(x0, y);for (i 0; i col/8; i){LCD_write_data(*pImage);pImage;}}LCD_endGraphic();
}//只有并行接口能读ST7920如果串行接口需要打点则需要开辟RAM缓冲区
#if LCD_INTERFACE ! MODE_SPI
//在对应X/Y位置显示一个点
void LCD_write_dot(unsigned char x, unsigned char y)
{unsigned char xBit, high, low;xBit x 0x0f;LCD_startGraphic();LCD_set_graphic_address(x, y);LCD_read_data(); //根据手册设置完地址后的第一次读操作返回的数据无效high LCD_read_data();low LCD_read_data();//回写LCD_set_graphic_address(x, y);if (xBit 8) //低8位{LCD_write_data(high | (0x01 (7 - xBit)));LCD_write_data(low);}else{LCD_write_data(high);LCD_write_data(low | (0x01 (15 - xBit)));}LCD_endGraphic();
}
#endif
st7920.h
//ST7920 LCD 驱动
//Author: cdhigh 2021-09-22
//ST7920的绘图结构左上角为坐标原点写入的字节表示从某个坐标开始的8个横向像素
//每行 128/816 个字节每个字节左边为最低位右边为最高位纵向64行。
//DDRAM地址
//0x80 0x81 0x82 0x83 0x84 0x85 0x86 0x87 //第一行汉字位置
//0x90 0x91 0x92 0x93 0x94 0x95 0x96 0x97 //第二行汉字位置
//0x88 0x89 0x8a 0x8b 0x8c 0x8d 0x8e 0x8f //第三行汉字位置
//0x98 0x99 0x9a 0x9b 0x9c 0x9d 0x9e 0x9f //第四行汉字位置
#ifndef __ST7290_H_
#define __ST7290_H_#include STC89C5xRC.H#define LCD12864_Port P0sbit LCD12864_CS P2^6;
sbit LCD12864_PSB P3^2;
sbit RS_Pin P2 ^ 6; //寄存器选择位RS位
sbit WR_Pin P2 ^ 5; //读写选择位RW
sbit EN_Pin P2 ^ 7; //使能信号位E位#define MODE_8BIT 8 //8bit并行模式
#define MODE_4BIT 4 //4bit并行模式
#define MODE_SPI 1 //串行-PSB接地//定义使用的接口模式MODE_8BIT, MODE_4BIT, MODE_SPI
#define LCD_INTERFACE MODE_SPIvoid LCD_clear(void);
void LCD_init(void);
void LCD_write_command(unsigned char command);
void LCD_write_data(unsigned char Data);
void LCD_write_byte(unsigned char byte);
void LCD_write_half_byte(unsigned char half_byte);
void LCD2_spi_write_byte(unsigned char Data);
void LCD2_spi_write_byte_standard(unsigned char Data);
unsigned char LCD_read_data(void);
unsigned char LCD_read_status(void);
unsigned char LCD_read_byte(void);
void LCD_startGraphic(void);
void LCD_endGraphic(void);
void LCD_Inverse_16X16(unsigned int rowCol, unsigned char charNum, unsigned char reverse);
unsigned int LCD_rowCol_to_inter_Xy(unsigned int rowCol);
void LCD_set_text_address(unsigned int rowCol);
void LCD_set_graphic_address(unsigned char x, unsigned char y);
void LCD_write_char(unsigned int rowCol, unsigned int Code);
void LCD_write_string(unsigned int rowCol, const char * p);
void LCD_Draw_Bmp(unsigned char *pImage, unsigned char col, unsigned char row, unsigned char x0, unsigned char y0);#if LCD_INTERFACE ! MODE_SPI
void LCD_write_dot(unsigned char x, unsigned char y);
#endif#define BYTE_BIT(bitno) (1 (bitno))
#define TEST_BIT(value, bitno) ((1 (bitno)) (value))
#define SET_BIT(value, bitno) ((value) | (1 (bitno)))
#define CLR_BIT(value, bitno) ((value) ~(1 (bitno)))//两个字节凑成行列整型
//为了更好的区分使用X/Y和ROW/COL使用ROW/COL的都是一个整型参数X/Y为两个字节参数
#define ROW_COL(r, c) (((r) 8) | (c 0xff))#endif
测试程序
显示图片
图片1
#include STC89C5xRC.H
#include intrins.h
#include stdint.h
#include st7920.hvoid Delay1ms() //11.0592MHz
{unsigned char i, j;_nop_();i 2;j 199;do{while (--j);} while (--i);
}void delay_ms(int i)
{while(i--)Delay1ms();
}code uint8_t LCD12864_Pic[]
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xF0,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x00,0x1F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0x0D,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xE0,0x00,0x04,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xB0,0x00,0x02,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x60,0x00,0x02,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x40,0x00,0x01,0x07,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x40,0x00,0x01,0x05,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x34,0x80,0x00,0x00,0x82,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x64,0x80,0x00,0x00,0x82,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x80,0x00,0x00,0x02,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x61,0x81,0x80,0x00,0x41,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x61,0x03,0xE0,0x00,0x01,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x61,0x07,0xF0,0x00,0x21,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x61,0x0C,0x3C,0x00,0x20,0xB0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x61,0x11,0xDE,0x00,0x10,0xB0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x21,0x12,0x1F,0x00,0x10,0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x25,0x24,0xC3,0x80,0x08,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x35,0x29,0x01,0xC0,0x08,0x50,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x35,0x28,0x00,0xE0,0x04,0x58,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x15,0x3F,0xFF,0xF0,0x04,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x19,0xF8,0x00,0x3C,0x02,0x2C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0x00,0x00,0x1C,0x02,0x2C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x0E,0x01,0x16,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x07,0x01,0x97,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x32,0x00,0x00,0x03,0x80,0x8B,0x82,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x32,0x00,0x00,0x01,0xC0,0x41,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x00,0x00,0x00,0xC0,0x32,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x60,0x1D,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x34,0x00,0x00,0x00,0x30,0x07,0xDC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x10,0x00,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x08,0x00,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x80,0x00,0x00,0x0C,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0xC0,0x00,0x00,0x06,0x03,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x7C,0x00,0x00,0x7F,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x61,0xE4,0x00,0x00,0xC8,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0xEC,0x00,0x00,0xCE,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0xFC,0x00,0x00,0xFE,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xE0,0x7C,0x00,0x00,0xF8,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x60,0x38,0x00,0x00,0x78,0x1B,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x60,0x58,0x00,0x00,0x48,0x19,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x60,0x00,0x00,0x00,0x00,0x19,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x60,0x00,0x00,0x00,0x00,0x19,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x20,0x1F,0xFF,0xFF,0xE0,0x19,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x20,0x10,0x41,0x04,0x20,0x13,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x30,0x1C,0x41,0x04,0x60,0x33,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xF0,0x0C,0x41,0x02,0x40,0x3E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xF0,0x0C,0x01,0x02,0xC0,0x3C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x06,0x81,0x03,0x80,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x03,0x81,0x03,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x01,0xE1,0x0E,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x7F,0xF8,0x01,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0E,0x00,0x00,0x80,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x00,0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};void main(void)
{LCD_init();LCD_clear();LCD_Draw_Bmp(LCD12864_Pic, 128, 64, 0, 0);while(1){ }
}
实验现象 图片打印较慢请耐心等待。
图片2
//liberty.bmp
//48x64
code unsigned char bmpData[]
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x01,0x20,0x00,0x00,0x00,0x00,0x03,0xE0,0x00,0x00,0x00,0x00,0x03,0xF0,0x00,0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x01,0xE1,0x80,0x00,0x00,0x00,0x01,0xF1,0x84,0x00,0x00,0x00,0x01,0xF9,0x9C,0x00,0x00,0x00,0x00,0xFF,0xB8,0x00,0x00,0x00,0x00,0xBF,0xFF,0x00,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0xDF,0xFC,0x00,0x00,0x00,0x00,0xDF,0xFF,0x80,0x00,0x00,0x00,0xDC,0x7F,0x00,0x00,0x00,0x00,0xDE,0xFC,0x00,0x00,0x00,0x00,0xDC,0xF0,0x00,0x00,0x00,0x01,0xFF,0x70,0x00,0x00,0x00,0x01,0xE7,0xD8,0x00,0x00,0x00,0x01,0xB3,0xD8,0x00,0x00,0x00,0x00,0xE1,0xF0,0x00,0x00,0x00,0x00,0xC1,0xF8,0x00,0x00,0x00,0x00,0x47,0xB8,0x00,0x00,0x00,0x00,0x4F,0xBC,0x00,0x00,0x00,0x00,0x4B,0x1D,0xC0,0x00,0x00,0x00,0x7A,0x7F,0xE0,0x00,0x00,0x00,0x36,0x6E,0x70,0x00,0x00,0x00,0x6C,0x6C,0xE0,0x00,0x00,0x00,0x6C,0x4C,0xE0,0x00,0x00,0x00,0xD8,0xCC,0xC0,0x00,0x00,0x00,0xD8,0xC5,0xC0,0x00,0x00,0x00,0x70,0xC7,0xC0,0x00,0x00,0x00,0x3C,0xC7,0x80,0x00,0x00,0x00,0x38,0xC7,0x80,0x00,0x00,0x00,0x78,0xC7,0x00,0x00,0x00,0x00,0x70,0xC6,0x00,0x00,0x00,0x00,0x70,0xC6,0x00,0x00,0x00,0x00,0x70,0xC6,0x00,0x00,0x00,0x00,0x30,0xC2,0x00,0x00,0x00,0x00,0x20,0xC2,0x00,0x00,0x00,0x00,0x60,0xC2,0x00,0x00,0x00,0x00,0x60,0xC6,0x00,0x00,0x00,0x00,0x60,0xFE,0x00,0x00,0x00,0x00,0x60,0xFE,0x00,0x00,0x00,0x00,0x60,0x7E,0x00,0x00,0x00,0x00,0x60,0x7E,0x00,0x00,0x00,0x00,0x60,0xFE,0x00,0x00,0x00,0x00,0x63,0xFE,0x00,0x00,0x00,0x00,0x67,0x7E,0x00,0x00,0x00,0x00,0x7F,0xFE,0x00,0x00,0x00,0x00,0x7F,0xFE,0x00,0x00,0x00,0x00,0x7F,0xDF,0x00,0x00,0x00,0x00,0x5F,0xDF,0x00,0x00,0x00,0x01,0xFF,0xFF,0x00,0x00,0x00,0x01,0x80,0x01,0x00,0x00,0x00,0x07,0xFF,0xFF,0xC0,0x00,0x00,0x06,0xFF,0xFE,0xE0,0x00,0x00,0x04,0x00,0x00,0x60,0x00,0x00,0x07,0xFF,0xFF,0xE0,0x00,0x00,0x07,0xFF,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};void main(void)
{LCD_init();LCD_clear();LCD_Draw_Bmp(bmpData, 48, 64, 32, 0);while(1){ }
}实验现象 显示字符
英文
void main(void)
{LCD_init();LCD_clear();LCD_write_string(0x0000, 0123456789abcdef);LCD_write_string(0x0100, ~!#$%^*()_-);LCD_write_string(0x0200, ABCDEFGHIJKLMNOP);LCD_write_string(0x0300, QRSTUVWXYZ);while(1){ }
}实验现象 中文
void main(void)
{LCD_init();LCD_clear();LCD_write_string(0x0000, 祥瑞不在凤凰麒麟);LCD_write_string(0x0100, 太平须得边将忠臣);LCD_write_string(0x0200, 仁得百僚师长肝胆);LCD_write_string(0x0300, 不用三\xfd军罗绮金银);while(1){ }
}实验现象 Proteus的仿真 需添加LCD12864的模型发布一个ST7920的LCD12864 Proteus仿真模型,支持串口和4bit模式通讯 —— cdhigh 下载后将LIBRARY、MODELS文件夹与Proteus安装目录下DATA文件夹内的同名文件夹合并
