gps.h

此程序实现无线信标定位

// all functions occurred in the main()

void lcd_ini(void);
void display(unsigned char address,unsigned char data string[]);
void draw(void);
void cls_cht(void);
void plot(unsigned char data address,unsigned int ascII);
void board_show(bit line_style,unsigned char b_target,unsigned char l_target,unsigned char b_arrow,
unsigned char l_arrow,unsigned char b_ch,unsigned char l_ch);

void send_d(unsigned char data_in);
void send_i(unsigned char comm);
void che_busy(void);
unsigned char read_ram(void);

void loc_xy(unsigned char X,unsigned char Y);
void line(bit pos);
void cls_grap(void);

void DelayMs(unsigned int number);		//延时子程序，延时大小取决于工作频率和number值
void Start();							//起始信号子程序
void Stop();								//终止信号子程序
void Ack();								//发送应答位子程序
void NoAck();							//发送非应答位子程序
bit TestAck();							//应答位检查子程序
bit Write8Bit(unsigned char input);		//写一个字节数据子程序
void WriteI2C(unsigned char *Wdata,unsigned char RomAddress,unsigned char number);
unsigned char Read8Bit();				//读一个字节数据子程序
void ReadI2C(unsigned char *RamAddress,unsigned char RomAddress,unsigned char bytes);

unsigned char store(unsigned char data recieve[],unsigned char time);

void recv_data(void);
void port_init(void);	

void decode(void);