树莓派wiringPi库驱动ST7565液晶


目录

准备工作

修改程序

运行效果

提示

完整代码

准备工作

翻出在老王家购买的ST7565液晶屏，就折腾它了。

树莓派使用wiringPi库，像这样就可以控制GPIO上的LED闪烁，很简单对吧？

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#include <wiringpi.h>

#define LED 25

int main(void)
{
    if(wiringPiSetup() < 0)return 1;
    pinMode (LED,OUTPUT) ;

    while(1)
    {  
        digitalWrite(LED, 1) ;
        delay (200);
        digitalWrite(LED, 0) ;
        delay (200);
    }  
}
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gcc led.c –o led -lwiringPi        #编译
sudo ./led                         #运行

屏幕已经在STM32上运行过几次，自己整理出了库文件，库文件由三个文件组成

  • fonts.h 字库文件，16*16汉字字形和8*16汉字字形
  • ST7565.c 控制LCD的接口函数
  • ST7565.h 头文件，可以在此修改引脚的宏定义

准备工作就到这里，开干

修改程序

ST7565.h中，修改宏定义，将#define Set_CS HAL_GPIO_WritePin(GPIOA,GPIO_PIN9_GPIO_PIN_SET)类似的宏定义语句注释掉，这是STM32HAL库的IO口操作函数，我们要更换成wiringPi库的IO口操作函数。且include也要修改。#include 是因为程序里面使用了类似uin8_t或者uint16_t类似的数据类型定义，在linux环境下包含这个头文件可以正确识别这些定义。改动后的头文件大致如下

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#include <wiringPi.h>
#include <stdint.h>

#define SDA 25 
#define SCL 24
#define RS  29  //A0 命令和数据切换
#define CS  28
#define RES 21

#define Set_SDA digitalWrite(SDA,1)
#define Reset_SDA digitalWrite(SDA,0)

#define Set_SCK digitalWrite(SCL,1)
#define Reset_SCK digitalWrite(SCL,0)

#define SetR_S digitalWrite(RS,1)
#define Reset_R_S digitalWrite(RS,0)

#define Set_CS digitalWrite(CS,1)
#define Reset_CS digitalWrite(CS,0)

#define Set_RES digitalWrite(RES,1)
#define Reset_RES digitalWrite(RES,0)

在ST7565.c中修改，新增GPIO初始化函数，修改Delayms函数，新增main.c函数

改动如下

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void Delayms(uint16_t ms)
{  
    //HAL_Delay(ms);
    usleep(ms * 20);
}  


void gpio_intit(void)
{
    if(wiringPiSetup() < 0)
        printf("init wiringPiSetp error\r\n");
    pinMode(SDA,OUTPUT);
    pinMode(SCL,OUTPUT);
    pinMode(RS,OUTPUT);
    pinMode(CS,OUTPUT);
    pinMode(RES,OUTPUT);   
}

int main(void)
{
    gpio_intit();
    LcdInit();
   
    disp_str_color("欢迎",0,0,0);
    disp_str_color("Hello World !",0,2,0);
   
    return 0;
}

然后运行指令

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gcc -o ST7565 ST7565.c -lwiringPi    #编译
./ST7565                             #运行

运行效果

就可以在屏幕上看到如下画面啦

提示

ST7565库使用GB2312编码格式，在树莓派上编辑会乱码，我的解决方案是用树莓派系统的Geany编辑代码

在这个菜单选项选择编码

再点击这个按钮重新载入文件就可以正常编辑GB2312文件啦

字模可以按照自己喜欢添加，取模软件设置如下

完整代码

fonts.h

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#ifndef __FONTS_H
#define __FONTS_H    

typedef struct
{
    unsigned char Index[2];
    char Msk[32];
}typFNT_GB16;

const typFNT_GB16  GB_16[] = {

"欢", 0x04,0x34,0xC4,0x04,0xC4,0x3C,0x20,0x10,0x0F,0xE8,0x08,0x08,0x28,0x18,0x00,0x00,
      0x10,0x08,0x06,0x01,0x82,0x8C,0x40,0x30,0x0C,0x03,0x0C,0x10,0x60,0xC0,0x40,0x00,

"迎", 0x40,0x42,0x44,0xC8,0x00,0xFC,0x04,0x02,0x82,0xFC,0x04,0x04,0x04,0xFE,0x04,0x00,
      0x00,0x40,0x20,0x1F,0x20,0x47,0x42,0x41,0x40,0x7F,0x40,0x42,0x44,0x63,0x20,0x00,

"显", 0x00,0x00,0x00,0xFE,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0xFF,0x02,0x00,0x00,0x00,
      0x40,0x42,0x44,0x4D,0x40,0x7F,0x40,0x40,0x40,0x7F,0x40,0x49,0x44,0x66,0x40,0x00,

"示", 0x40,0x40,0x42,0x42,0x42,0x42,0x42,0xC2,0x42,0x42,0x42,0x43,0x42,0x60,0x40,0x00,
      0x00,0x10,0x08,0x04,0x06,0x40,0x80,0x7F,0x00,0x00,0x02,0x04,0x0C,0x18,0x00,0x00,

"汉", 0x10,0x22,0x64,0x0C,0x80,0x04,0x74,0x84,0x04,0x04,0x04,0xC4,0x3E,0x04,0x00,0x00,
      0x04,0x04,0x7E,0x01,0x80,0x40,0x20,0x11,0x0A,0x04,0x0B,0x10,0x60,0xC0,0x40,0x00,

"字", 0x00,0x10,0x0C,0x24,0x24,0x24,0x25,0x26,0xA4,0x64,0x24,0x04,0x14,0x0C,0x00,0x00,
      0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x02,0x02,0x02,0x02,0x02,0x03,0x02,0x00,

"测", 0x10,0x22,0x6C,0x00,0x80,0xFC,0x04,0xF4,0x04,0xFE,0x04,0xF8,0x00,0xFE,0x00,0x00,
      0x04,0x04,0xFE,0x01,0x40,0x27,0x10,0x0F,0x10,0x67,0x00,0x47,0x80,0x7F,0x00,0x00,

"试", 0x40,0x42,0xCC,0x00,0x10,0x90,0x90,0x90,0x90,0x90,0xFF,0x10,0x12,0x14,0x10,0x00,
      0x00,0x00,0x7F,0x20,0x10,0x20,0x60,0x3F,0x10,0x10,0x01,0x3E,0x40,0x80,0x70,0x00,

"油", 0x10,0x60,0x02,0x8C,0x00,0xF0,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0xF0,0x00,0x00,
      0x04,0x04,0x7E,0x01,0x00,0xFF,0x42,0x42,0x42,0x7F,0x42,0x42,0x42,0xFF,0x00,0x00,/*"油",0*/

"门", 0x00,0xF8,0x01,0x06,0x00,0x00,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0xFE,0x00,0x00,
      0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,/*"门",1*/

"系",   0x00,0x00,0x22,0x32,0x2A,0xA6,0xA2,0x62,0x21,0x11,0x09,0x81,0x01,0x00,0x00,0x00,
        0x00,0x42,0x22,0x13,0x0B,0x42,0x82,0x7E,0x02,0x02,0x0A,0x12,0x23,0x46,0x00,0x00,/*0*/
"统",   0x20,0x30,0xAC,0x63,0x30,0x00,0x88,0xC8,0xA8,0x99,0x8E,0x88,0xA8,0xC8,0x88,0x00,
        0x22,0x67,0x22,0x12,0x12,0x80,0x40,0x30,0x0F,0x00,0x00,0x3F,0x40,0x40,0x71,0x00,/*1*/
"温",   0x10,0x60,0x02,0x8C,0x00,0x00,0xFE,0x92,0x92,0x92,0x92,0x92,0xFE,0x00,0x00,0x00,
        0x04,0x04,0x7E,0x01,0x40,0x7E,0x42,0x42,0x7E,0x42,0x7E,0x42,0x42,0x7E,0x40,0x00,/*2*/
"度",   0x00,0x00,0xFC,0x24,0x24,0x24,0xFC,0x25,0x26,0x24,0xFC,0x24,0x24,0x24,0x04,0x00,
        0x40,0x30,0x8F,0x80,0x84,0x4C,0x55,0x25,0x25,0x25,0x55,0x4C,0x80,0x80,0x80,0x00,/*3*/


"℃", 0x06,0x09,0x09,0xE6,0xF8,0x0C,0x04,0x02,0x02,0x02,0x02,0x02,0x04,0x1E,0x00,0x00,
      0x00,0x00,0x00,0x07,0x1F,0x30,0x20,0x40,0x40,0x40,0x40,0x40,0x20,0x10,0x00,0x00,/*0*/
};




typedef struct
{
    char Index[1];
    char Msk[16];
}typFNT_ASC16   ;

const typFNT_ASC16  ASC_16[] =
{  
"1",0x00,0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,/*"1",0*/
"2",0x00,0x70,0x08,0x08,0x08,0x08,0xF0,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,/*"2",0*/
"3",0x00,0x30,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x18,0x20,0x21,0x21,0x22,0x1C,0x00,/*"3",1*/
"4",0x00,0x00,0x80,0x40,0x30,0xF8,0x00,0x00,0x00,0x06,0x05,0x24,0x24,0x3F,0x24,0x24,/*"4",2*/
"5",0x00,0xF8,0x88,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x20,0x20,0x20,0x11,0x0E,0x00,/*"5",3*/
"6",0x00,0xE0,0x10,0x88,0x88,0x90,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x20,0x1F,0x00,/*"6",4*/
"7",0x00,0x18,0x08,0x08,0x88,0x68,0x18,0x00,0x00,0x00,0x00,0x3E,0x01,0x00,0x00,0x00,/*"7",5*/
"8",0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,/*"8",6*/
"9",0x00,0xF0,0x08,0x08,0x08,0x10,0xE0,0x00,0x00,0x01,0x12,0x22,0x22,0x11,0x0F,0x00,/*"9",7*/
"0",0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,/*"0",8*/
"%",0xF0,0x08,0xF0,0x80,0x60,0x18,0x00,0x00,0x00,0x31,0x0C,0x03,0x1E,0x21,0x1E,0x00,/*"%",0*/
".",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,/*".",0*/
"a",0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x19,0x24,0x24,0x12,0x3F,0x20,0x00,
"b",0x10,0xF0,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,
"c",0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,
"d",0x00,0x00,0x80,0x80,0x80,0x90,0xF0,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,
"e",0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x24,0x24,0x24,0x24,0x17,0x00,
"f",0x00,0x80,0x80,0xE0,0x90,0x90,0x20,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,
"g",0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,
"h",0x10,0xF0,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,
"i",0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,
"j",0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,
"k",0x10,0xF0,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x06,0x29,0x30,0x20,0x00,
"l",0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,
"m",0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,
"n",0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,
"o",0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,
"p",0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0x91,0x20,0x20,0x11,0x0E,0x00,
"q",0x00,0x00,0x00,0x80,0x80,0x00,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0x91,0xFF,0x80,
"r",0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,
"s",0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,
"t",0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x10,0x00,
"u",0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,
"v",0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x03,0x0C,0x30,0x0C,0x03,0x00,0x00,
"w",0x80,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x01,0x0E,0x30,0x0C,0x07,0x38,0x06,0x01,
"x",0x00,0x80,0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x20,0x31,0x0E,0x2E,0x31,0x20,0x00,
"y",0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x81,0x86,0x78,0x18,0x06,0x01,0x00,
"z",0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,
"A",0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,/*0*/
"B",0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,/*1*/
"C",0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,/*2*/
"D",0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,/*3*/
"E",0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,/*4*/
"F",0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,/*5*/
"G",0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,/*6*/
"H",0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,/*7*/
"I",0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,/*8*/
"J",0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,/*9*/
"K",0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,/*10*/
"L",0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,/*11*/
"M",0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x01,0x3E,0x01,0x3F,0x20,0x00,/*12*/
"N",0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,/*13*/
"O",0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,/*14*/
"P",0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,/*15*/
"Q",0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x28,0x28,0x30,0x50,0x4F,0x00,/*16*/
"R",0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,/*17*/
"S",0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,/*18*/
"T",0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,/*19*/
"U",0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,/*20*/
"V",0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x03,0x0C,0x30,0x0C,0x03,0x00,0x00,/*21*/
"W",0x80,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x01,0x0E,0x30,0x0C,0x07,0x38,0x06,0x01,/*22*/
"X",0x00,0x80,0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x20,0x31,0x0E,0x2E,0x31,0x20,0x00,/*23*/
"Y",0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x81,0x86,0x78,0x18,0x06,0x01,0x00,/*24*/
"Z",0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,/*25*/

};




#endif

ST7565.c

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#include "ST7565.h"
#include "fonts.h"

/*---------------------------延时函数----------------------------------------------*/

void Delayms(uint16_t ms)
{  
    //HAL_Delay(ms);
    delay(ms);
}      
/*---------------------------------------------------------------------------------*/



/*----------------------------写命令函数-------------------------------------------*/

void Comwrite(uint8_t cmd)
{
    uint8_t i,j;
    Reset_CS;       //CS1=0;
    Reset_R_S;      //R_S=0;  
    Set_SCK;        //SCK=1;
    for(i=0;i<8;i++)
    {
        j=cmd;
        Reset_SCK;      // SCK=0;
       
        if(cmd&0x80)Set_SDA;        //SDA=cmd&0x80;
        else Reset_SDA;
       
        Set_SCK;        //SCK=1;         
        cmd=j<<1;
    }
    Set_CS;         // CS1=1;
    SetR_S;         //R_S=1;
}
/*---------------------------------------------------------------------------------*/


/*-------------------------写像素点函数【带反显】----------------------------------*/
void Datwrite_color(uint8_t dat,uint8_t Color) 
{                          
    uint8_t i,j;
   
    Reset_CS;           // CS1=0;
    SetR_S;              //R_S=1;  
    Set_SCK;            // SCK=1;
   
    if(Color==0)
    {
        for(i=0;i<8;i++)
        {
            j=dat;
            Reset_SCK;      // SCK=0;
            if(dat&0x80)Set_SDA;        //SDA=cmd&0x80;  Set_SDA
            else Reset_SDA;             //               Reset_SDA
            Set_SCK;                    //SCK=1;
            dat=j<<1;
        }
    }
    else
    {
        for(i=0;i<8;i++)
        {
            j=dat;
            Reset_SCK;      // SCK=0;
            if(dat&0x80)Reset_SDA;      //SDA=cmd&0x80;  Set_SDA
            else Set_SDA;               //               Reset_SDA
            Set_SCK;                    //SCK=1;
            dat=j<<1;
        }  
    }
    Set_CS;         //CS1=1;
    Reset_R_S;          //  R_S=0;
}
/*---------------------------------------------------------------------------------*/




/*--------------------------设置地址函数--------------------------------------------*/
void Setadd(uint8_t xl,uint8_t yl)
{
    uint8_t i;
   
    xl+=4;
    i=(xl+0)&0x0f;
    xl=(xl>>4)+0x10;

    Comwrite(0xb0+yl);    
    Comwrite(xl);
    Comwrite(i);   
}
/*---------------------------------------------------------------------------------*/



/*-------------------------清屏函数------------------------------------------------*/
void Clear(void)
{
   uint8_t  i,j;
   for(i=0;i<8;i++)  
    {
     Setadd(0,i);        
     for(j=0;j<128;j++)
          Datwrite_color(0x00,0);
     }
}
/*---------------------------------------------------------------------------------*/



/*-------------------------------初始化函数----------------------------------------*/
void LcdInit(void)
{  
    Reset_RES;//RES=0;
    Delayms(50);
    Set_RES;        //RES=1;
    Delayms(20);
                           
    Comwrite(0xe2);    //复位
   
    Comwrite(0xa1); //  左右 A0：反向 A1：正向
    Comwrite(0xc0); //  上下 C0 正向，C8反向
                                    //     Comwrite(0xA0); //  左右 A0：反向 A1：正向
                                    //   Comwrite(0xc8); //  上下 C0 正向，C8反向    
                                       
    Comwrite(0x2f); //开关内部电源
       
    Comwrite(0x27); // 27

    Comwrite(0xaf); // 开启

    Comwrite(0x40); //  dizhi 设定显示起始坐标  用于上下滚屏使用
    Comwrite(0xc8); //  dizhi


    Comwrite(0xa6); //A6正常显示        A7反白显示
    Comwrite(0xa4); //A4正常模式？         A5全屏显示
    Comwrite(0xa2); //A3 1/7偏置设置    A21/9偏执设置   A3  

    Comwrite(0x81); //
    Comwrite(0x06); //
   
    Comwrite(0xf8); // 
    Comwrite(0x3);     

   
    Clear();
}
/*---------------------------------------------------------------------------------*/



void disp_ch_color(unsigned char c,uint8_t uCol,uint8_t uPage,uint8_t Color)
{
    unsigned char k,j,ch_w;
    unsigned char width;
    unsigned char len;

    len=sizeof(ASC_16)/sizeof(ASC_16[0]);
    for(k=0;k<len;k++)
    {
        if(c == ASC_16[k].Index[0] ) break;
    }
    if(k<len)
    {
       
        if(c=='-'||c==':')
            width=ASC_CHR_WIDTH-2;
        else if(c=='|')
            width=ASC_HZ_WIDTH-ASC_CHR_WIDTH;
        else
            width=ASC_CHR_WIDTH;
       
           Setadd(uCol,uPage);
            for(j=0;j<width;j++)
            {
                ch_w=ASC_16[k].Msk[j];             
                Datwrite_color(ch_w,Color);
            }

            Setadd(uCol,uPage+1);
            for(j=0;j<width;j++)
            {
                ch_w=ASC_16[k].Msk[ASC_CHR_WIDTH+j];
                Datwrite_color(ch_w,Color);
            }      
    }
}



void disp_hz_color(uint8_t *hz,uint8_t uCol,uint8_t uPage,uint8_t Color)
{
    unsigned char k,j,ch_w;
    //sizeof 用来求一个变量或者一种类型所占用的字节数
    for(k=0;k<sizeof(GB_16)/sizeof(GB_16[0]);k++)
    {
        if(hz[0] == GB_16[k].Index[0] && hz[1] == GB_16[k].Index[1])
            break;
    }

    Setadd(uCol,uPage);
    for(j=0;j<ASC_HZ_WIDTH;j++)
    {      
        ch_w=GB_16[k].Msk[j];
        Datwrite_color(ch_w,Color);
    }

    Setadd(uCol,uPage+1);
    for(j=0;j<ASC_HZ_WIDTH;j++)
    {
        ch_w=GB_16[k].Msk[ASC_HZ_WIDTH+j];
        Datwrite_color(ch_w,Color);
    }
}


/*-----------------------------------------------------------------------------------
显示函数，可以解析中英文字符串，在fonts.h中寻找字模，如果不存在则显示空白
    *p      字符串
    uCol    x轴坐标 0 - 127      【一个字占用32】
    uPage y轴坐标    0 - 8           【一个字占用两个值】
    Color   字体颜色                    【0正显，1反显】
-----------------------------------------------------------------------------------*/
void disp_str_color(uint8_t *p,uint8_t uCol,uint8_t uPage,uint8_t Color)
{
    unsigned char i=0;
    while(p[i]>0)
    {
        if(p[i] < 128)
        {  
            disp_ch_color(p[i],uCol,uPage,Color);
            uCol+=8;
        }
        else
        {  
            disp_hz_color(&p[i],uCol,uPage,Color);
            uCol+=16;
            i++;
        }
//      if(Flage1==1) Delayms(200);
        i++;
    }
}
void gpio_intit(void)
{
    wiringPiSetup();
    pinMode(SDA,OUTPUT);
    pinMode(SCL,OUTPUT);
    pinMode(RS,OUTPUT);
    pinMode(CS,OUTPUT);
    pinMode(RES,OUTPUT);       
}

int main(void)
{
    gpio_intit();
    LcdInit();
    disp_str_color("欢迎",0,0,0);
    disp_str_color("Hello World",0,2,0);
}

ST7565.h

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#ifndef __ST7565_H
#define __ST7565_H

#include <wiringPi.h>
#include <stdint.h>

#define SDA 25 
#define SCL 24
#define RS  29 
#define CS  28
#define RES 21

#define Set_SDA digitalWrite(SDA,1)
#define Reset_SDA digitalWrite(SDA,0)

#define Set_SCK digitalWrite(SCL,1)
#define Reset_SCK digitalWrite(SCL,0)

#define SetR_S digitalWrite(RS,1)
#define Reset_R_S digitalWrite(RS,0)

#define Set_CS digitalWrite(CS,1)
#define Reset_CS digitalWrite(CS,0)

#define Set_RES digitalWrite(RES,1)
#define Reset_RES digitalWrite(RES,0)


#define ASC_CHR_WIDTH   8
#define ASC_CHR_HEIGHT  12

#define ASC_HZ_WIDTH    16



extern void Clear(void);
extern void LcdInit(void);

extern void disp_str_color(uint8_t *p,uint8_t uCol,uint8_t uPage,uint8_t Color);        //具备反显功能

#endif