sht11.h

AVR atmega64串口驱动

#define        SETDATA( )   PORTG|=1<<PG3 
#define        CLRDATA( )   PORTG&=~(1<<PG3) 
#define        SETSCK( )    PORTG|=1<<PG4 
#define        CLRSCK( )    PORTG&=~(1<<PG4) 

                            //adr  command  r/w 
#define STATUS_REG_W 0x06   //000   0011    0 
#define STATUS_REG_R 0x07   //000   0011    1 
#define MEASURE_TEMP 0x03   //000   0001    1 
#define MEASURE_HUMI 0x05   //000   0010    1 
#define RESET        0x1e   //000   1111    0 

   


#ifdef wenshidu_c 

volatile uint shixunhuan; 
volatile uchar wendu1; 
volatile uchar wendu2; 
volatile uchar shidu1; 
volatile uchar shidu2; 
volatile uchar wenxiao; 
volatile uchar shixiao; 
volatile uint  wenduint; 
volatile uint  shiduint; 
volatile double wenduf1; 
volatile double shiduf1; 
volatile double wenduf2; 
volatile double shiduf2; 
volatile double wenduf3; 
volatile double shiduf3; 
volatile double *weng; 
volatile double *shig; 

volatile uchar wendu3; 
volatile uchar wendu4; 
volatile uchar shidu3; 
volatile uchar shidu4; 

volatile uchar error,checksum; 
//volatile uchar tongdao; 

volatile double rh_lin;                      
volatile double rh_true;                     
volatile double t_C;    

#endif 

#ifdef wenshidu_c 
char s_write_byte(unsigned char value); 
char s_read_byte( ); 
void s_transstart(void); 
void s_connectionreset(void); 
char s_softreset(void); 
char s_read_statusreg( ); 
char s_write_statusreg(unsigned char *p_value); 
char  s_measurewen( ); 
char  s_measureshi( ); 
void calc_sth11( ); 
void adad(); 
void SHTyanshi( ); 
#else 
extern char s_write_byte(unsigned char value); 
extern char s_read_byte(unsigned char ack); 
extern void s_transstart(void); 
extern void s_connectionreset(void); 
extern char s_softreset(void); 
extern char s_read_statusreg(unsigned char *p_value, unsigned char *p_checksum); 
extern char s_write_statusreg(unsigned char *p_value); 
extern void s_measurewen( ); 
extern void s_measureshi( ); 
extern void calc_sth11( ); 
extern void adad(); 
extern void SHTyanshi( ); 
#endif