安徽财经大学信息工程学院本科课程论文（设计）
机主动启动写时序开始，如果要求单总线器件回送数据，在进行写命令后，主机需启动读时序完成数据接收。数据和命令的传输都是低位在先。 （4）LCD160128
160128是一种图形点阵液晶显示器,它主要由行驱动器/列驱动器及格160×128全点阵液晶显示器组成。可完成图形显示，也可以显示10×8个(16×16点阵)汉字。
主要技术参数和性能：模块内自带-15负压，用于 LCD的驱动电压 1、电源VDD：+5V；
2、显示内容：160（列）×128（行）点 3、全屏幕点阵 4、十三种指令
5、与CPU接口采用8位数据总线并行输入输出 6、驱动路数 1/128
7、工作温度：0°C∽+55°C，存储温度：-20°C∽+70°C 外形尺寸
项目 模块体积 尺度 129.0×102.0×12.8 单位 mm 7
安徽财经大学信息工程学院本科课程论文（设计）
视域 行列点阵数 点距离 点大小 模块外部接口：
101.0×82.0 160×128 0.58×0.58 0.54×0..54 mm 点 mm mm
4 系统软硬件设计
4.1硬件电路设计
（1）时钟电路
单片机工作的时间基准是由时钟电路提供的。在单片机的XTAL1和XTAL2两个引脚间，接一只晶振及两只电容就构成了单片机的时钟电路，
电路中的器件选择可以通过计算和实验确定，也可以参考一些典型电路的参数。电路中，电容器C1和C2对振荡器频率有微调作用，通常的取值范围30±10pF；石英晶体选择6MHZ或12MHZ都可以。其结果只是机器周期时间不同，影响计数器的计数初值。
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安徽财经大学信息工程学院本科课程论文（设计）
（2）温度检测电路
该电路只是利用DS18B20模拟外界环境温度的变化，从而实时显示在液晶屏上。
（3）LCD160128显示电路
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安徽财经大学信息工程学院本科课程论文（设计）
4.2 软件设计
应用程序
//---------------LCD_160128.c---------------- //LCD_160128的C文件,内含控制函数
//------------------------------------------ #include
#define ASC_CHR_WIDTH 8 #define ASC_CHR_HEIGHT 12 #define HZ_CHR_HEIGHT 12 #define HZ_CHR_WIDTH 12 uchar code LCD_WIDTH = 20; uchar code LCD_HEIGHT = 128; uchar code ASC_MSK[96*12]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,
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安徽财经大学信息工程学院本科课程论文（设计）
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// ' ' 0x00,0x30,0x78,0x78,0x78,0x30,0x30,0x00,0x30,0x30,0x00,0x00,// '!' 0x00,0x66,0x66,0x66,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// '\0x00,0x6c,0x6c,0xfe,0x6c,0x6c,0x6c,0xfe,0x6c,0x6c,0x00,0x00,// '#' 0x30,0x30,0x7c,0xc0,0xc0,0x78,0x0c,0x0c,0xf8,0x30,0x30,0x00,// '$' 0x00,0x00,0x00,0xc4,0xcc,0x18,0x30,0x60,0xcc,0x8c,0x00,0x00,// '%' 0x00,0x70,0xd8,0xd8,0x70,0xfa,0xde,0xcc,0xdc,0x76,0x00,0x00,// '&' 0x00,0x30,0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// ''' 0x00,0x0c,0x18,0x30,0x60,0x60,0x60,0x30,0x18,0x0c,0x00,0x00,// '(' 0x00,0x60,0x30,0x18,0x0c,0x0c,0x0c,0x18,0x30,0x60,0x00,0x00,// ')' 0x00,0x00,0x00,0x66,0x3c,0xff,0x3c,0x66,0x00,0x00,0x00,0x00,// '*' 0x00,0x00,0x00,0x18,0x18,0x7e,0x18,0x18,0x00,0x00,0x00,0x00,// '+' 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x38,0x60,0x00,// ',' 0x00,0x00,0x00,0x00,0x00,0xfe,0x00,0x00,0x00,0x00,0x00,0x00,// '-' 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x38,0x00,0x00,// '.' 0x00,0x00,0x02,0x06,0x0c,0x18,0x30,0x60,0xc0,0x80,0x00,0x00,// '/' 0x00,0x7c,0xc6,0xce,0xde,0xd6,0xf6,0xe6,0xc6,0x7c,0x00,0x00,// '0' 0x00,0x10,0x30,0xf0,0x30,0x30,0x30,0x30,0x30,0xfc,0x00,0x00,// '1' 0x00,0x78,0xcc,0xcc,0x0c,0x18,0x30,0x60,0xcc,0xfc,0x00,0x00,// '2' 0x00,0x78,0xcc,0x0c,0x0c,0x38,0x0c,0x0c,0xcc,0x78,0x00,0x00,// '3' 0x00,0x0c,0x1c,0x3c,0x6c,0xcc,0xfe,0x0c,0x0c,0x1e,0x00,0x00,// '4' 0x00,0xfc,0xc0,0xc0,0xc0,0xf8,0x0c,0x0c,0xcc,0x78,0x00,0x00,// '5' 0x00,0x38,0x60,0xc0,0xc0,0xf8,0xcc,0xcc,0xcc,0x78,0x00,0x00,// '6' 0x00,0xfe,0xc6,0xc6,0x06,0x0c,0x18,0x30,0x30,0x30,0x00,0x00,// '7' 0x00,0x78,0xcc,0xcc,0xec,0x78,0xdc,0xcc,0xcc,0x78,0x00,0x00,// '8' 0x00,0x78,0xcc,0xcc,0xcc,0x7c,0x18,0x18,0x30,0x70,0x00,0x00,// '9' 0x00,0x00,0x00,0x38,0x38,0x00,0x00,0x38,0x38,0x00,0x00,0x00,// ':' 0x00,0x00,0x00,0x38,0x38,0x00,0x00,0x38,0x38,0x18,0x30,0x00,// ';' 0x00,0x0c,0x18,0x30,0x60,0xc0,0x60,0x30,0x18,0x0c,0x00,0x00,// '<' 0x00,0x00,0x00,0x00,0x7e,0x00,0x7e,0x00,0x00,0x00,0x00,0x00,// '=' 0x00,0x60,0x30,0x18,0x0c,0x06,0x0c,0x18,0x30,0x60,0x00,0x00,// '>' 0x00,0x78,0xcc,0x0c,0x18,0x30,0x30,0x00,0x30,0x30,0x00,0x00,// '?' 0x00,0x7c,0xc6,0xc6,0xde,0xde,0xde,0xc0,0xc0,0x7c,0x00,0x00,// '@' 0x00,0x30,0x78,0xcc,0xcc,0xcc,0xfc,0xcc,0xcc,0xcc,0x00,0x00,// 'A' 0x00,0xfc,0x66,0x66,0x66,0x7c,0x66,0x66,0x66,0xfc,0x00,0x00,// 'B' 0x00,0x3c,0x66,0xc6,0xc0,0xc0,0xc0,0xc6,0x66,0x3c,0x00,0x00,// 'C' 0x00,0xf8,0x6c,0x66,0x66,0x66,0x66,0x66,0x6c,0xf8,0x00,0x00,// 'D' 0x00,0xfe,0x62,0x60,0x64,0x7c,0x64,0x60,0x62,0xfe,0x00,0x00,// 'E' 0x00,0xfe,0x66,0x62,0x64,0x7c,0x64,0x60,0x60,0xf0,0x00,0x00,// 'F' 0x00,0x3c,0x66,0xc6,0xc0,0xc0,0xce,0xc6,0x66,0x3e,0x00,0x00,// 'G' 0x00,0xcc,0xcc,0xcc,0xcc,0xfc,0xcc,0xcc,0xcc,0xcc,0x00,0x00,// 'H' 0x00,0x78,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x78,0x00,0x00,// 'I' 0x00,0x1e,0x0c,0x0c,0x0c,0x0c,0xcc,0xcc,0xcc,0x78,0x00,0x00,// 'J' 0x00,0xe6,0x66,0x6c,0x6c,0x78,0x6c,0x6c,0x66,0xe6,0x00,0x00,// 'K'
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