ds18b20.h

温度传感器DS18B20的功能实现

/*
****************************************************************************************************
* SSAC_A1
* Main Controller Board
* File name : ds18b20.h
* Use for   : To detect temperature
* Summary   : The include file

****************************************************************************************************
*/

#ifndef     __DS18B20_H
#define     __DS18B20_H


//////////  Read the Laser ROM from from DS18b20  //  Notice: Only for single device on 1-Wire Bus 
            //  Input:
                    // * Value: the point for UID data storage
            //  Return: 
                    //  0: Opt. false
                    //  1: Opt. OK
__monitor extern unsigned char DS18B20_Single_Read_ROM (unsigned char * Value);
//--------------------------------------------------------------------------------------------------

//////////  Read the value of temperature from DS18b20 
            //  Input:
                    //  // * UID: which device with the UID will be read out
                        // * Value: will storage temperature.
                            // * (Value + 0): = 0x00 is above 0, = 0xFF is lower 0
                            // * (Value + 1): Int. of temperature value
                            // * (Value + 2): dot. of temperature value, 0x00 to 0x63 (0.00 to 0.99)
            //  Return: 
                    //  0: Opt. false
                    //  1: Opt. OK
extern unsigned char DS18B20_Single_Read_Temperature (unsigned char * Value);
//--------------------------------------------------------------------------------------------------


//////////  Only convert temperature without delay. Single
            //  Input:
                    //  None
            //  Return: 
                    //  0: Opt. false
                    //  1: Opt. OK
extern unsigned char DS18B20_Single_Only_Convert_Temperature (void);
//--------------------------------------------------------------------------------------------------


//////////  Only read SCT data from DS18B20. Single
            //  Input:
                    //  
                        // * Value: will storage temperature.
                            // * (Value + 0): = 0x00 is above 0, = 0xFF is lower 0
                            // * (Value + 1): Int. of temperature value
                            // * (Value + 2): dot. of temperature value, 0x00 to 0x63 (0.00 to 0.99)
            //  Return: 
                    //  0: Opt. false
                    //  1: Opt. OK
extern unsigned char DS18B20_Single_Only_Read_Temperature (unsigned char * Value);
//--------------------------------------------------------------------------------------------------


//////////  以指定的ROM去读温度
            //  Input:
                    //  
                        // * UID: ROM (8 bytes)
                        // * Value: will storage temperature.
                            // * (Value + 0): = 0x00 is above 0, = 0xFF is lower 0
                            // * (Value + 1): Int. of temperature value
                            // * (Value + 2): dot. of temperature value, 0x00 to 0x63 (0.00 to 0.99)
            //  Return: 
                    //  0: Opt. false
                    //  1: Opt. OK
extern unsigned char DS18B20_UID_Read_Temperature (unsigned char * Value, unsigned char * UID);



#endif      /*  __DS18B20_H */