MSP430G2553 使用Nokia5110液晶屏-错误笔记

为了显示几个字符,从哥们那里搞到了一块Nokia 5110液晶屏,而且哥们还发了一个5110.h头文件。但是在使用过程中也发现了几个误区,导致多花费了将近一个多小时的时间:
头文件如下:

/*
 * nokia_5110.h
 *
 *  Created on: 2014年7月23日
 *      Author: kusole
 */

#ifndef NOKIA_5110_H_
#define NOKIA_5110_H_
/*
 * nokia_5110.h
 *s
 *  Created on: 2014年7月20日
 *      Author: kusole
 */
#include "msp430g2553.h"//使用接线 P2.0到P2.4
#define LCD_5110_DIR  P2DIR
#define LCD_5110_OUT  P2OUT
#define   LCD_RST    4
#define   LCD_SCE    3
#define   LCD_DC     2
#define   LCD_DN     1
#define   LCD_SCLK   0
void LCD_init(void);
void LCD_clear(void);
void LCD_write_english_string(unsigned char X,unsigned char Y,char *s);
void LCD_write_chinese_string(unsigned char X, unsigned char Y,
                   unsigned char ch_with,unsigned char num,
                   unsigned char line,unsigned char row);
void LCD_write_char(unsigned char c);
void LCD_write_byte(unsigned char dat, unsigned char dc);
void delay_1us(void);
char write_chinese[][24]={
//人
        {0x00,0x00,0x00,0x80,0x60,0x1F,0x60,0x80,0x00,0x00,0x00,0x00,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x01,0x02,0x04,0x08,0x00},
//生
        {0x20,0x10,0x8E,0x88,0x88,0xFF,0x88,0x88,0x88,0x08,0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x0F,0x08,0x08,0x08,0x08,0x08,0x00},
//中
        {0x00,0xF8,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0xF8,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x01,0x00,0x00},
//成
        {0x00,0xFC,0x24,0x24,0xE4,0x04,0xFF,0x04,0x85,0x66,0x04,0x00,0x08,0x07,0x00,0x02,0x0B,0x04,0x02,0x01,0x02,0x04,0x0F,0x00},
//功
        {0x04,0x04,0xFC,0x04,0x04,0x08,0xFF,0x08,0x08,0x08,0xF8,0x00,0x02,0x02,0x01,0x09,0x05,0x03,0x00,0x00,0x08,0x08,0x07,0x00},
//源
        {0x11,0x22,0x00,0xFF,0x01,0xF9,0xAD,0xAB,0xA9,0xF9,0x01,0x00,0x04,0x02,0x08,0x07,0x04,0x02,0x08,0x0F,0x00,0x02,0x04,0x00},
//于
        {0x20,0x21,0x21,0x21,0x21,0xFF,0x21,0x21,0x21,0x21,0x20,0x00,0x00,0x00,0x00,0x08,0x08,0x0F,0x00,0x00,0x00,0x00,0x00,0x00},
//不
        {0x02,0x02,0x82,0x42,0x22,0xF2,0x0E,0x22,0x42,0x82,0x02,0x00,0x01,0x01,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x00,0x01,0x00},
//放
        {0x08,0xF9,0x4A,0x48,0xC8,0x20,0x10,0xEF,0x08,0xF8,0x08,0x00,0x08,0x07,0x00,0x08,0x0F,0x00,0x08,0x05,0x02,0x05,0x08,0x00},
//弃
        {0x04,0x24,0x34,0xEC,0x25,0x26,0x24,0xE4,0x34,0x64,0x04,0x00,0x01,0x09,0x05,0x03,0x01,0x01,0x01,0x0F,0x01,0x01,0x01,0x00},
 };
const unsigned char font6x8[][6] =
{
    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },   // sp
    { 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 },   // !
    { 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 },   // "
    { 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 },   // #
    { 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 },   // $
    { 0x00, 0x62, 0x64, 0x08, 0x13, 0x23 },   // %
    { 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 },   // &
    { 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 },   // '
    { 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 },   // (
    { 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 },   // )
    { 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 },   // *
    { 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 },   // +
    { 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00 },   // ,
    { 0x00, 0x08, 0x08, 0x08, 0x08, 0x08 },   // -
    { 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 },   // .
    { 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 },   // /
    { 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E },   // 0
    { 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 },   // 1
    { 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 },   // 2
    { 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 },   // 3
    { 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 },   // 4
    { 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 },   // 5
    { 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 },   // 6
    { 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 },   // 7
    { 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 },   // 8
    { 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E },   // 9
    { 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 },   // :
    { 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 },   // ;
    { 0x00, 0x08, 0x14, 0x22, 0x41, 0x00 },   // <
    { 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 },   // =
    { 0x00, 0x00, 0x41, 0x22, 0x14, 0x08 },   // >
    { 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 },   // ?
    { 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E },   // @
    { 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C },   // A
    { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 },   // B
    { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 },   // C
    { 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C },   // D
    { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 },   // E
    { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 },   // F
    { 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A },   // G
    { 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F },   // H
    { 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 },   // I
    { 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 },   // J
    { 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 },   // K
    { 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 },   // L
    { 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F },   // M
    { 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F },   // N
    { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E },   // O
    { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 },   // P
    { 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E },   // Q
    { 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 },   // R
    { 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 },   // S
    { 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 },   // T
    { 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F },   // U
    { 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F },   // V
    { 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F },   // W
    { 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 },   // X
    { 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 },   // Y
    { 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 },   // Z
    { 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 },   // [
    { 0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55 },   // 55
    { 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00 },   // ]
    { 0x00, 0x04, 0x02, 0x01, 0x02, 0x04 },   // ^
    { 0x00, 0x40, 0x40, 0x40, 0x40, 0x40 },   // _
    { 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 },   // '
    { 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 },   // a
    { 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 },   // b
    { 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 },   // c
    { 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F },   // d
    { 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 },   // e
    { 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 },   // f
    { 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C },   // g
    { 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 },   // h
    { 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 },   // i
    { 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00 },   // j
    { 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 },   // k
    { 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 },   // l
    { 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 },   // m
    { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 },   // n
    { 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 },   // o
    { 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18 },   // p
    { 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC },   // q
    { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 },   // r
    { 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 },   // s
    { 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 },   // t
    { 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C },   // u
    { 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C },   // v
    { 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C },   // w
    { 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 },   // x
    { 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C },   // y
    { 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 },   // z
    { 0x14, 0x14, 0x14, 0x14, 0x14, 0x14 }    // horiz lines
};
void LCD_init(void)
{

   LCD_5110_DIR |= (0x01 << LCD_RST) + (0x01 << LCD_SCE) + (0x01 << LCD_DC)
       + (0x01 << LCD_DN) + (0x01<< LCD_SCLK);
   LCD_5110_OUT &= ~(0x01 << LCD_RST);
   LCD_5110_OUT |= (0x01 << LCD_RST);
    LCD_5110_OUT &= ~(0x01 << LCD_SCE);
   LCD_5110_OUT |= (0x01 << LCD_SCE);
    LCD_write_byte(0x21, 0); // 使用扩展命令设置LCD模式
    LCD_write_byte(0xC0, 0); // 设置偏置电压//由此设置对比度
    LCD_write_byte(0x06, 0); // 温度校正
    LCD_write_byte(0x13, 0); // 1:48
    LCD_write_byte(0x20, 0); // 使用基本命令
    LCD_clear();         // 清屏
    LCD_write_byte(0x0c, 0); // 设定显示模式,正常显示

    // 关闭LCD
    LCD_5110_OUT &= ~(0x01 << LCD_SCE);
 }
void LCD_clear(void)
  {
    unsigned int i;
    LCD_write_byte(0x0c, 0);
    LCD_write_byte(0x80, 0);
    for (i=0; i<504; i++)
      LCD_write_byte(0, 1);
  }

//X       :0-83 Y       :0-5

void LCD_set_XY(unsigned char X, unsigned char Y)
  {
    LCD_write_byte(0x40 | Y, 0);  // column
    LCD_write_byte(0x80 | X, 0);           // row
  }

void LCD_write_char(unsigned char c)
  {
    unsigned char line;
    c -= 32;
    for (line=0; line<6; line++)
      LCD_write_byte(font6x8[c][line], 1);
  }

void LCD_write_english_string(unsigned char X,unsigned char Y,char *s)
  {
    LCD_set_XY(X,Y);
    while (*s)
      {
  LCD_write_char(*s);
  s++;
      }
  }
/*-----------------------------------------------------------------------
LCD_write_chinese_string: 在LCD上显示汉字
输入参数:X、Y    :显示汉字的起始X、Y坐标;
          ch_with :汉字点阵的宽度
          num     :显示汉字的个数;
          line    :汉字点阵数组中的起始行数
          row     :汉字显示的字间距
-----------------------------------------------------------------------*/
void LCD_write_chinese_string(unsigned char X, unsigned char Y,
                   unsigned char ch_with,unsigned char num,
                   unsigned char line,unsigned char row)
  {
    unsigned char i,n;

    LCD_set_XY(X,Y);                             //设置初始位置

    for (i=0;i

使用方法:
主程序文件中引入NOKIA_5110.H

并LCD_init();初始化

显示事例:

 LCD_set_XY(0,0);LCD_write_char('V');LCD_write_char('1');LCD_write_char(':');
 LCD_set_XY(0,1);LCD_write_char('V');LCD_write_char('2');LCD_write_char(':');

上述代码可以在液晶屏上显示两行字符

V1:
V2:     

需要注意的部分:
1、LCD_set_XY(0,1);与正常人的思维相反,正常人会觉得LCD_set_XY(0,1);应该位于液晶屏第一行第二位,但实际显示在第二行第一位。
2、使用LCD_write_char(':');函数后,液晶屏内光标计数器后自行后移一位,无需再次设定XY坐标。
20110120193834018546

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