时钟的模拟显示控制系统设计

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1、课程设计报告时钟的模拟显示控制系统设计班级：工控082班专业：自动化设计人（完成日期：11-10-18一、设计目的：熟悉单片机试验箱的布局，使得学生学习对P87C52单片机应 用能力及实际的动手操作能力。二、设计任务：利用图形液晶模块及动态刷新的控制方式，模拟钟表的显示 界面。三、设计要求：钟表具有分针和秒针，分别由两条直线表示；两条直线动态 显示和刷新，实现指针的走动，通过不同的刷新频率，实现两指针的不同转速。四、方案设计：1、总体设计1.1设计思路：采用P87C52作为主要控制芯片，来控制液晶显示模块， LCD将单片机发送过来的时钟数据显示在显示屏上，使液晶屏上显示圆形时钟。1.2工作原理

2、：实验中采用LCD汉字取模软件，用该软件画每秒时刻图形, 然后自动生成码表，运行或仿真过程中，单片机通过刷新方式，每一张码表在 LCD上显示每一时刻的画面。2、硬件设计与分析：2.1课程设计采用的硬件器件及数量：硬件器件数量P87C52单片机1LCD:TG-12864B12.2 12864的相关介绍2.2.1 12864 概述：12864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128x64全点阵液晶 显示器组成。可完成图形显示，也可以显示8x4个（16x16点阵）汉字。管脚名称LEVER管脚功能描述VSS0电源地VDD+5.0V电源电压V0-液晶显示器驱动电压D/I(RS)H/L

3、D/I-“H”，表示DB7sDB0为显示数据D/I“L”，表示DB7sDB0为显示指令数据R/WH/LR/W=“H”，E=“H”数据被读到 DB7sDB0 R/W=“L”，E=“HL”数据被写到 IR 或 DREH/LR/W=“L”，E信号下降沿锁存DB7sDB0 R/W=“H”，E=“H”DDRAM 数据读至 1DB7DB0DB0H/L数据线DB1H/L数据线DB2H/L数据线DB3H/L数据线DB4H/L数据线DB5H/L数据线DB6H/L数据线DB7H/L数据线CS1H/LH:选择芯片(右半屏)信号CS2H/LH:选择芯片(左半屏)信号RETH/L复位信号，低电平复位VOUT-10VLC

4、D驱动负电压LED+-LED背光板电源LED-LED背光板电源在使用12864LCD前先必须了解以下功能器件才能进行编程。12864内部功能器件及相 关功能如下：1.指令寄存器(IR)IR是用于寄存指令码，与数据寄存器数据相对应。当D/I=O时，在E信号下降沿的作用 下，指令码写入IR。2. 数据寄存器(DR)DR是用于寄存数据的，与指令寄存器寄存指令相对应。当D/I=1时，在下降沿作用下， 图形显示数据写入DR，或在E信号高电平作用下由DR读到DB7sDB0数据总线。DR和 DDRAM之间的数据传输是模块内部自动执行的。3. 忙标志：BFBF标志提供内部工作情况。BF=1表示模块在内部操作，

5、此时模块不接受外部指令和数 据。BF=O时，模块为准备状态，随时可接受外部指令和数据。利用STATUS READ指令，可以将BF读到DB7总线，从检验模块之工作状态。4. 显示控制触发器DFF此触发器是用于模块屏幕显示开和关的控制。DFF=1为开显示(DISPLAY OFF)，DDRAM的内容就显示在屏幕上，DFF=0为关显示(DISPLAY OFF)。DDF的状态是指令DISPLAY ON/OFF和RST信号控制的。5. XY地址计数器XY地址计数器是一个9位计数器。高3位是X地址计数器，低6位为Y地址计数器, XY地址计数器实际上是作为DDRAM的地址指针，X地址计数器为DDRAM的页指针

6、， Y地址计数器为DDRAM的Y地址指针。X地址计数器是没有记数功能的，只能用指令设置。Y地址计数器具有循环记数功能，各显示数据写入后，Y地址自动加1, Y地址指针从 0 到 63。6. 显示数据RAM (DDRAM)DDRAM是存储图形显示数据的。数据为1表示显示选择，数据为0表示显示非选择。D DRAM与地址和显示位置的关系见DDRAM地址表。7. Z地址计数器Z地址计数器是一个6位计数器，此计数器具备循环记数功能,它是用于显示行扫描同步。 当一行扫描完成，此地址计数器自动加1,指向下一行扫描数据，RST复位后Z地址计数 器为0。Z地址计数器可以用指令DISPLAY START LINE预

7、置。因此，显示屏幕的起始行就由 此指令控制，即DDRAM的数据从哪一行开始显示在屏幕的第一行。此模块的DDRAM共 64行，屏幕可以循环滚动显示64行。2.2.2 LCD12864 引脚图2.3 P87C52单片机2.3.1 P87C52单片机概述：P87C52基于80C51内核采用高密度CMOS技术设计制造，包含中央 处理单元、片内8kOTP程序存储器，128字节内部数据存储器RAM、4组8 位双向输入/输出（I/O） 口、3个16位定时/计数器和6个中断源，4层优先 级中断嵌套结构，可用于多机通信的串行I/O 口，全双工UART，片内时钟 振荡电路。2.3.2 P87C52单片机硬件电气原

8、理图：J79_uB-D1 g_JBJD7B戶*H AI ；B_PSENB A15B A145_oB_A12 二1 :bZaioB g135 7 9 13 5 72 2 2 3 3 3 32 斗 6 s o 2 4 6 IX IX IX li1820222426233032343638机B_P10BP11B_P12BP13B P14B_P15b2pi5bZP!7B_KSTJUODO rxpoB_INT0BINT1B TObZxtai2 BXTALl GNDHEADER 20X22.3.3 P87C52单片机功能特性：基于MCS-51内核和指令系统；(2) 32 个双向 I/O 口；(3) 3个1

9、6位可编程定时/计数器；(4) 电源空闲和掉电模式；(5) 3 位保密位(OTP ROM)；(6) 双数据指示器；(7) 全双工增强UARL通道；(8) 帧数据错误检测；(9) 自动地址识别；(10) 可外接64kB外部程序存储器ROM；(11) 128x8bi t内部RAM(可扩充64kB外部存储器)； (12(时钟频率0-33MHZ；(13) 2.7-5.5V工作电压范围；(14) 外中断唤醒电源掉电模式；(15) 异步端口复位；(16) 可编程时钟输出；(17) 布尔处理器；2.3.4驱动部分电气连接图JI06JP2i1LIGHT1CCGND1LCD AO4LCD AIsLCD CLK6

10、LCD A2CS LCD2RST LCD11LIGHTLIGHT Z J.-r_-wsls:ST D k E c c RB DOMDID2WLMD*MD7VSS VDD Widi veEEtiL ri-UGHT L#include #include #define STX0x02#define ETX0x03#define EOT0x04#define ENQ0x05#define BS0x08#define CR0x0D#define LF0x0A#define DLE0x10#define ETB0x17#define SPACE 0x20#define COMMA 0x2C#define

11、 TRUE 1#define FALSE 0#define HIGH 1#define LOW 0/T6963C命令定义#define LC_CUR_POS0x21/光标位置设置#define LC_CGR_POS0x22/CGRAM偏置地址设置#define LC_ADD_POS0x24/地址指针位置#define LC_TXT_STP0x40/文本区首址#define LC_TXT_WID0x41文本区宽度#define LC_GRH_STP0x42图形区首址#define LC_GRH_WID0x43图形区宽度#define LC_MOD_OR0x80/显示方式:逻辑或#define L

12、C_MOD_XOR0x81显示方式:逻辑异或#define LC_MOD_AND0x82/显示方式:逻辑与#define LC_MOD_TCH0x83/显示方式:文本特征#define LC_DIS_SW0x90/显示开关.#define LC_CUR_SHP#define LC_AUT_WR0xA00xB0/D0=1/0:光标闪烁启用/禁用；/D1=1/0:光标显示启用/禁用；/D2=1/0:文本显示启用/禁用；/D3=1/0:图形显示启用/禁用；/光标形状选择:0xA0-0xA7表示光标占的行数自动写设置#define LC_AUT_RD0xB1自动读设置#define LC_AUT_OV

13、R0xB2自动读/与结束#define LC_INC_WR0xC0数据写,地址加1#define LC_INC_RD0xC1数据读,地址加1#define LC_DEC_WR0xC2/数据写，地址减1#define LC_DEC_RD0xC3/数据读，地址减1#define LC_NOC_WR0xC4/数据与，地址不变#define LC_NOC_RD0xC5/数据读，地址不变#define LC_SCN_RD0xE0读屏屏#define LC_SCN_CP0xE8/屏幕拷贝#define LC_BIT_OP (0xF0位操作:D0-D2：定义D0-D7位；D3： 1置位；0：清除/名称用PG

14、12864LCD设计的指针式电子钟/说明:本例利用PG12864LCD设计了指针式电子钟，电子钟由表盘、 /时针、分针、秒针等构成./时钟运行过程中可进行时分秒的调节和保存./#define F_CPU 4000000UL#include vreg52/io.h#include vreg52/pgmspace.h#include vreg52/interrupt.h#include vutil/delay.h#include #include PG12864.h#define INT8U unsigned char#define INT16U unsigned int如果引入头文件math.h

15、则可以直接使用PI的符号常量定义:M_PI#define PI 3.1415926extern void cls();清屏extern INT8U LCD_Initialise();/LCD 初始化extern INT8U LCD_Write_Command(INT8U cmd);/ 写无参数的命令写双参数命令extern INT8U LCD_Write_Command_P2(INT8U cmd,INT8U para1,INT8U para2);extern INT8U LCD_Write_Data(INT8U dat);/ 写数据extern void Set_LCD_POS(INT8U r

16、ow, INT8U col);设置当前地址绘制线条extern void Line(INT8U x1,INT8U y1, INT8U x2,INT8U y2, INT8U Mode);extern void Pixel(INT8U x,INT8U y, INT8U Mode);/ 画点函数显示字符串extern INT8U Display_Str_at_xy(INT8U x,INT8U y,char *fmt);extern INT8U LCD_WIDTH;extern INT8U LCD_HEIGHT;extern void GetDateTime();从 DS1302 获取时间extern

17、 void SetDateTime();设置时间按键定义所读取的日期时间extern INT8U DateTime7;当前调节的时间对象:秒，分，时(0,1,2),为-1时表示时钟正常运行.char Adjust_Index = -1;保存前一秒，分，时数据,用于在绘制当前新的指针时擦除上次绘制的指针INT8U TimeBack = -1, -1, -1;秒，分，时针的长度INT8U HMS_Hand_Length = 24,20,15;数字式时钟的显示串缓冲char DisplayBuffer = 00:00:00;/显示数字式时钟/void ShowDigitTime()/绘制电子钟圆形面

18、板/void Clock_Plate()/重绘HMS中的某一指针(参数0,1,2分别为秒，分，时)/void Repaint_A_Hand(INT8U i)/时间变化时重绘/秒针与分针时钟接近重叠,或分钟与时针接近重叠时也要重绘/void Display_HMS_Hand()/主程序/int main()/ T0定时器刷新LCD时间显示/ISR (TIMER0_OVF_vect)/键盘中断(INT0)/ISR (INT0_vect)/名称:PG12864LCD显示驱动程序(不带字库)/#include vavr/io.h#include vavr/pgmspace.h#include vuti

19、l/delay.h#include #include #include #include PG12864.h#define INT8U unsigned char#define INT16U unsigned int/T6963C端口定义/LCD控制引脚(读，写，命令/数据寄存选择)/LCD控制引脚相关操作/ASCII字模宽度及高度定义下面的英文，数字，标点符号等字符点阵存放于程序Flash空间中使用时要用pgm_read_byte(uchar*)函数读取，该函数在avr/pgmspace.h中申明 本例使用的图像点阵也存放于Flash中.prog_uchar ASC_MSK96 * 12 =

20、 OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,Oxff,Oxff,Oxff,Oxff,Oxff, / 0x20 时 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,0x

21、6c,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, % 0x00,0x70,0xd 8,0xd8,0x70,0xfa,0xde,0xcc,0xdc,0x76,0x00,0x00, & 0x00,0x30,0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 0x00,0x0c,0x18,0x30,0x60,0x

22、60,0x60,0x30,0x18,0x0c,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,

23、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,0x00,0x

24、00, 10x00,0x78,0xcc,0xcc,0x0c,0xl8,0x30,0x60,0xcc,0xfc,0x00,0x00, 2 0x00,0x78,0xcc,0x0c,0x0c,0x3 8,0x0c,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,

25、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,0x18,0x 1&0x30,0x70,0x00,0x00,/ 9 0x00,0x00,0x00,0x38,0x38,0x00,0x00,0x38,0x38,0x00,0x00,0x00,/ : 0x00,0x00,0x00,0x38,0

26、x38,0x00,0x00,0x38,0x38,0x18,0x30,0x00,/ ; 0x00,0x0c,0x18,0x30,0x60,0xc0,0x60,0x30,0x18,0x0c,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 0x00,0xf

27、c,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,0x64,0x60,0x60,0xf0,0x00,0

28、x00, 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

29、,0x66,0xe6,0x00,0x00, K 0x00,0xf0,0x60,0x60,0x60,0x60,0x62,0x66,0x66,0xfe,0x00,0x00, L 0x00,0xc6,0xee,0xfe,0xfe,0xd6,0xc6,0xc6,0xc6,0xc6,0x00,0x00, M 0x00,0xc6,0xc6,0xe6,0xf6,0xfe,0xde,0xce,0xc6,0xc6,0x00,0x00, N 0x00,0x38,0x6c,0xc6,0xc6,0xc6,0xc6,0xc6,0x6c,0x38,0x00,0x00, O 0x00,0xfc,0x66,0x66,0x66

30、,0x7c,0x60,0x60,0x60,0xf0,0x00,0x00, P 0x00,0x38,0x6c,0xc6,0xc6,0xc6,0xce,0xde,0x7c,0x0c,0x1e,0x00, Q 0x00,0xfc,0x66,0x66,0x66,0x7c,0x6c,0x66,0x66,0xe6,0x00,0x00, R 0x00,0x78,0xcc,0xcc,0xc0,0x70,0x 18,0xcc,0xcc,0x78,0x00,0x00, S 0x00,0xfc,0xb4,0x30,0x30,0x30,0x30,0x30,0x30,0x78,0x00,0x00, T 0x00,0xc

31、c,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0x78,0x00,0x00,/ U 0x00,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0xcc,0x78,0x30,0x00,0x00, V 0x00,0xc6,0xc6,0xc6,0xc6,0xd6,0xd6,0x6c,0x6c,0x6c,0x00,0x00, W 0x00,0xcc,0xcc,0xcc,0x78,0x30,0x78,0xcc,0xcc,0xcc,0x00,0x00, X 0x00,0xcc,0xcc,0xcc,0xcc,0x78,0x30,0x30,0x30,0x78,0x00,

32、0x00,/ Y 0x00,0xfe,0xce,0x98,0x18,0x30,0x60,0x62,0xc6,0xfe,0x00,0x00, Z 0x00,0x3c,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x3c,0x00,0x00, 0x00,0x00,0x80,0xc0,0x60,0x30,0x18,0x0c,0x06,0x02,0x00,0x00, 0x00,0x3c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x3c,0x00,0x00, 0xl0,0x38,0x6c,0xc6,0x00,0x00,0x00,0x00,0x00,

33、0x00,0x00,0x00, A OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,OxOO,Oxff,OxOO, _ 0x30,0x30,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/ 、 0x00,0x00,0x00,0x00,0x78,0x0c,0x7c,0xcc,0xcc,0x76,0x00,0x00, a 0x00,0xe0,0x60,0x60,0x7c,0x66,0x66,0x66,0x66,0xdc,0x00,0x00, b 0x00,0x00,0x00,0x00,0x78,0xcc

34、,0xc0,0xc0,0xcc,0x78,0x00,0x00, c 0x00,0x1c,0x0c,0x0c,0x7c,0xcc,0xcc,0xcc,0xcc,0x76,0x00,0x00, d 0x00,0x00,0x00,0x00,0x78,0xcc,0xfc,0xc0,0xcc,0x78,0x00,0x00, e 0x00,0x38,0x6c,0x60,0x60,0xf8,0x60,0x60,0x60,0xf0,0x00,0x00, f 0x00,0x00,0x00,0x00,0x76,0xcc,0xcc,0xcc,0x7c,0x0c,0xcc,0x7 8,/ g 0x00,0xe0,0x

35、60,0x60,0x6c,0x76,0x66,0x66,0x66,0xe6,0x00,0x00, h 0x00,0x18,0x18,0x00,0x78,0x18,0x18,0x18,0x18,0x7e,0x00,0x00, i 0x00,0x0c,0x0c,0x00,0x3c,0x0c,0x0c,0x0c,0x0c,0xcc,0xcc,0x78, j 0x00,0xe0,0x60,0x60,0x66,0x6c,0x7 8,0x6c,0x66,0xe6,0x00,0x00, k 0x00,0x78,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x7e,0x00,0x00

36、, l 0x00,0x00,0x00,0x00,0xfc,0xd6,0xd6,0xd6,0xd6,0xc6,0x00,0x00, m 0x00,0x00,0x00,0x00,0xf8,0xcc,0xcc,0xcc,0xcc,0xcc,0x00,0x00, n 0x00,0x00,0x00,0x00,0x78,0xcc,0xcc,0xcc,0xcc,0x78,0x00,0x00,/ o 0x00,0x00,0x00,0x00,0xdc,0x66,0x66,0x66,0x66,0x7c,0x60,0xf0, p 0x00,0x00,0x00,0x00,0x76,0xcc,0xcc,0xcc,0xc

37、c,0x7c,0x0c,0x1e, q 0x00,0x00,0x00,0x00,0xec,0x6e,0x76,0x60,0x60,0xf0,0x00,0x00, r 0x00,0x00,0x00,0x00,0x78,0xcc,0x60,0x18,0xcc,0x78,0x00,0x00, s 0x00,0x00,0x20,0x60,0xfc,0x60,0x60,0x60,0x6c,0x38,0x00,0x00, t 0x00,0x00,0x00,0x00,0xcc,0xcc,0xcc,0xcc,0xcc,0x76,0x00,0x00, u 0x00,0x00,0x00,0x00,0xcc,0xc

38、c,0xcc,0xcc,0x78,0x30,0x00,0x00, v 0x00,0x00,0x00,0x00,0xc6,0xc6,0xd6,0xd6,0x6c,0x6c,0x00,0x00, w 0x00,0x00,0x00,0x00,0xc6,0x6c,0x38,0x38,0x6c,0xc6,0x00,0x00, x 0x00,0x00,0x00,0x00,0x66,0x66,0x66,0x66,0x3c,0x0c,0x18,0xf0, y 0x00,0x00,0x00,0x00,0xfc,0x8c,0x18,0x60,0xc4,0xfc,0x00,0x00, z 0x00,0x1c,0x3

39、0,0x30,0x60,0xc0,0x60,0x30,0x30,0x1c,0x00,0x00, 0x00,0x18,0x18,0x18,0x18,0x00,0x18,0x18,0x18,0x18,0x00,0x00,/ T 0x00,0xe0,0x30,0x30,0x1 & 0x0c,0x18,0x30,0x30,0xe0,0x00,0x00, 0x00,0x73,0xda,0xce,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, ；INT8U gCurRow,gCurCol; /图形当前行、列存储，行高16点，列宽8点 INT8U tCurRow,tCurC

40、ol; /文本当前行、列存储，行高8点，列宽8点 INT8U ShowModeSW;/当前显示模式INT16U txthome,grhome;/ LCD控制相关函数/INT8U Status_BIT_01(); /状态位STA1,STA0判断(读写指令和读写数据) INT8U Status_BIT_3(); /状态位ST3判断(数据自动写状态)/写无参数的指/写单参数的指INT8U LCD_Write_Command(INT8U cmd);令INT8U LCD_Write_Command_Pl(INT8U cmd,INT8U paral);令INT8U LCD_Write_Command_P2

41、 (INT8U cmd,INT8U para1,INT8U para2); / 写双参数的指令/写数据/读数据清屏/LCD初始化/设置当前地址ASCII(8*8)显示函数ASCII(8*16)和汉字(16*16 )显示函数绘点INT8U LCD_Write_Data(INT8U dat);INT8U LCD_Read_Data();void cls();char LCD_PINitialise();void Set_LCD_POS(INT8U row, INT8U col);void charout(INT8U *str);/显示辅助函数void Line(INT8U x1, INT8U y1

42、, INT8U x2, INT8U y2, INT8U Mode); / 绘制直线INT8U dprintf(INT8U x,INT8U y,char *fmt); void OutToLCD(INT8U Dat,INT8U x,INT8U y);void Pixel(INT8U x,INT8U y, INT8U Mode);/读状态/INT8U Read_LCD_Status()/读数据/INT8U Read_LCD_Data()/写数据/void Write_Data(INT8U dat)/写命令/void Write_Command(INT8U cmd) /状态位STA1,STAO判断(

43、读写指令和读写数据)/INT8U Status_BIT_01()/状态位ST3判断(数据自动写状态)/INT8U Status_BIT_3()/写双参数的指令/INT8U LCD_Write_Command_P2(INT8U cmd,INT8U para1,INT8U para2)/写单参数的指令/INT8U LCD_Write_Command_P1(INT8U cmd,INT8U para1)/写无参数的指令/INT8U LCD_Write_Command(INT8U cmd)/写数据/INT8U LCD_Write_Data(INT8U dat)/读数据/INT8U LCD_Read_Da

44、ta()/设置当前地址/void Set_LCD_POS(INT8U row, INT8U col)/清屏/void cls()/ LCM初始化/char LCD_Initialise()/ ASCII及汉字显示/INT8U Display_Str_at_xy(INT8U x,INT8U y,char *fmt)/输出起点x不是8的倍数时，原字节分成两部分输出到LCD/void OutToLCD(INT8U Dat,INT8U x,INT8U y)/绘点函数/参数:点的坐标，模式1/0分别为显示与清除点/void Pixel(INT8U x,INT8U y, INT8U Mode)/两数交换/

45、void Exchange(INT8U *a, INT8U *b)/绘制直线函数/参数:起点与终点坐标，模式为显示(1)或清除(0)，点阵不超过255*255)/void Line(INT8U x1,INT8U y1, INT8U x2,INT8U y2, INT8U Mode)/ DS1302实时时钟程序/#include vreg52/io.h#include vstring.h#include vutil/delay.h#define INT8U unsigned char#define INT16U unsigned int /DS1302引脚定义/DS1302接口数据方向/DS130

46、2控制引脚操作定义星期字符串表(未使用)char *WEEK = SUN,MON,TUS,WEN,THU,FRr,SAT;所读取的日期时间INT8U DateTime7;/向DS1302写入一字节/void Write_Byte_TO_DS1302(INT8U x)/从DS1302读取一字节/INT8U Get_Byte_FROM_DS1302()/从DS1302指定位置读数据/INT8U Read_Data(INT8U addr)/向DS1302指定地址写数据/void Write_DS1302(INT8U addr,INT8U dat)/读取当前日期时间/void GetDateTime(

47、)/设置时间(仅设置时/分/秒)/void SetDateTime()五、设计过程评估与改进：个人心得体会、改进的意见和建议。通过这次课程设计让我们熟悉学会了 LCD12864的相关使用方法，提高了 我们的编程能力，增加了我们团队合作的意识以及相互协作的能力。我们认为， 在这学期的实验中，在收获知识的同时，还收获了阅历，收获了成熟，在此过程 中，我们通过查找大量资料，不仅培养了独立思考、动手操作的能力，而且在各 种其它能力上也都有了提高。另外通过这次课程设计更加让我们清晰的认识到了 理论与实际相结合的重要性，发现了我们的不足。整个过程中遇到一些困难，当 然这也给了我们攻克难关的机会，大大地锻炼了我们解决问题的能力，加强了我 们的信心，这些对我们以后的工作和生活都有很大的帮助，让我们获益匪浅。