倾斜角测量仪.doc

#include /包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#include#include#include#include#include#include#define RS_CLR RS=0 #define RS_SET RS=1#define RW_CLR RW=0 #define RW_SET RW=1 #define EN_CLR EN=0#define EN_SET EN=1#define DataPort P0#define MEAS 0x00 /测量模式#define RWTR 0x08 /读写温度数据寄存器#define STX 0x0E /x通道自检#define STY 0x0F /Y通道自检#define RDAX 0x10 /读通道加速度值#define RDAY 0x11 /读通道加速度值sbit RS = P24; /定义端口 sbit RW = P25;sbit EN = P26;sbit SPK=P20;sbit SCK=P17; sbit MISO=P16;sbit MOSI=P15;sbit CSB=P14;unsigned char frq; sbit P0_0 = P00;sbit P0_1 = P01;sbit P0_2 = P02;sbit P0_3 = P03;sbit P0_4 = P04;sbit P0_5 = P05;sbit P0_6 = P06;sbit P0_7 = P07;sbit P1_0 = P10;sbit P1_1 = P11;sbit P1_2 = P12;sbit P1_3 = P13;sbit P1_4 = P14;sbit P1_5 = P15;sbit P1_6 = P16;sbit P1_7 = P17;sbit P2_0 = P20;sbit P2_1 = P21;sbit P2_2 = P22;sbit P2_3 = P23;sbit P2_4 = P24;sbit P2_5 = P25;sbit P2_6 = P26;sbit P2_7 = P27;sbit P3_0 = P30;sbit P3_1 = P31;sbit P3_2 = P32;sbit P3_3 = P33;sbit P3_4 = P34;sbit P3_5 = P35;sbit P3_6 = P36;sbit P3_7 = P37; unsigned int SPI_ReadBits(unsigned char n );void SPI_WriteByte( unsigned char wdata );void SPI_Start(void);void SPI_Stop(void);void SPI_Reset(void);void SPI_Delay(unsigned char);unsigned int SPI_GetX( void );unsigned int SPI_GetY( void );void SPI_Init( void );void SPI_Stop( void ) SCK = 0; CSB = 1; SPI_Delay(10);void SPI_Reset(void) SPI_Stop();void SPI_Delay(unsigned char n) while(n-);void SPI_Start(void) SCK = 0; CSB = 0; SPI_Delay(10);/主机写一个BYTE到器件/最终状态:CLK=LOWvoid SPI_WriteByte( unsigned char wdata ) unsigned char i; for( i = 0 ; i 8 ; +i ) SCK = 0; SPI_Delay(10); MOSI = wdata & 0x80; wdata = wdata 1; SPI_Delay(10); SCK = 1; SPI_Delay(10); SCK = 0;/主机读入N个比特/n 限制为16及其以下/结束状态CLK=0unsigned int SPI_ReadBits( unsigned char n ) unsigned int rtemp,i; MISO = 1; for( i = 0 ; i n ; +i ) rtemp 20) g=0; LCD_Write_String(x,y,DANGER!); while(!P2_0) Init_Timer0(); /初始化定时器 DelayMs(1); /延时1ms，累加频率值 frq+; else LCD_Write_String(x,y, ); EA=0; g=1; return(g);/*- 发送函数-*/ void Sed(int a)SBUF=a; while(TI=0); TI=0;void Send(float n)int a,b,c,d,m; m=(int)(n*100); a=m%10; Sed(a); m=m/10; b=m%10; Sed(b); m=m/10; c=m%10; Sed(c); d=m/10; Sed(d);/*- 主函数-*/ void main(void) unsigned int result; double angle,a,b; LCD_Init(); LCD_Clear();/清屏 SPI_Reset(); SPI_Delay(1000); SPI_Init(); SPI_Delay(1000); while (1) result = SPI_GetX(); angle=angle_transfer(result); a=angle; Send(a); P2_0=Warning(angle,9,0); P2_1=Warning(angle,9,0); if(a0) a=fabs(a); LCD_Write_String(0,0,X:-); LCD_Display(0,a); else LCD_Write_String(0,0,X:+); LCD_Display(0,a); result = SPI_GetY(); angle=angle_transfer(result); b=angle; Send(b); P2_0=Warning(angle,9,1);