PIC课程设计报告(4)

//宏定义，清屏 #define CLR_LCD()

//变量定义

const char AA[17]="LINYANJUN2610800"; char

QW,BW,SW,GW;

//无符号字符0--255 //有符号整形，2个字节 //有符号长整形，4字节

int START_T,DELTA_T,RZ,RF; long T1N;

DELAY(2)

\

LCD_WRITE(0b00000001,COM); \

signed char KEY_CHANGE,KEY_SET,KEY_INC,KEY_DEC,KEY_T1N; const int BB[8]={2000,800,255,255,255,255,255,255};

//PWM初始化 void PWM(void) { TRISC1=0; }

//LCD模块初始化 void LCD_CSH(void) { DELAY(20);

DELAY(10);

//延时20ms //发送控制序列 //延时10ms //发送控制序列 //延时100us //发送控制序列 //延时100us //4位数据格式 //LCD忙检测

LCD_WRITE_4(0b0011,COM); LCD_WRITE_4(0b0011,COM); DELAY_US(10); DELAY_US(10); LCD_BUSY();

LCD_WRITE_4(0b0011,COM); LCD_WRITE_4(0b0010,COM); PR2=255; CCPR2L=0x32;

CCP2CON=0b00101100; T2CON=0b00000101;

//PWM模式，TMR2是其工作时基

//晶振4MHZ,频率1KHZ，占空比20%

LCD_WRITE(0b00101000,COM);