Kenneth Adams / SCP1000

Library to interface the SCP1000 temperature and pressure sensor.

Dependents:   SCP1000_Example ku-make_sensor ku-make_sensor201302 SCP1000_Example ... more

SCP1000.h@9:47d6f205890b, 2010-10-08 (annotated)

Committer:
kadams6
Date:
Fri Oct 08 17:44:49 2010 +0000
Revision:
9:47d6f205890b
Parent:
8:1049590388b6 

        

        
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/**





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 * @section LICENSE





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 * This program is free software; you can redistribute it and/or modify 





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 * it under the terms of the GNU General Public License as published by 





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 * the Free Software Foundation; either version 2 of the License, or 





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 * (at your option) any later version.





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 * 





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 * This program is distributed in the hope that it will be useful, but 





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 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 





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 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 





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 * for more details.





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 * 





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 * You should have received a copy of the GNU General Public License along 





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 * with this program; if not, write to the Free Software Foundation, Inc., 





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 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA





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 *





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 * @section DESCRIPTION





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 * Library to interface with the SCP1000 pressure and temperature sensor.





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 */





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#ifndef _SCP1000_H





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#define _SCP1000_H





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#include "mbed.h"





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/**





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 * Class to interface with the SCP1000 pressure and temperature sensor.





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 */





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class SCP1000 {





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    public:





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        /**





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         * Constructor.





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         *





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         * @param mosi SPI MOSI pin





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         * @param miso SPI MISO pin





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         * @param sclk SPI SCLK pin





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         * @param cs Chip select pin





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         */





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        SCP1000(PinName mosi, PinName miso, PinName sclk, PinName cs);





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        ~SCP1000() { /* empty */ };





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        /**





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         * Read the pressure.





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         *





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         * @returns The pressure in pascals.





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         */





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        unsigned long readPressure();





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        /**





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         * Read the temperature.





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         *





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         * @returns The temperature in Celsius.





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         */





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        float readTemperature();





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    private:





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        static const char PRESSURE = 0x1F;   //Pressure 3 MSB





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        static const char PRESSURE_LSB = 0x20; //Pressure 16 LSB





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        static const char TEMP = 0x21;       //16 bit temp





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        SPI m_spi;





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        DigitalOut m_cs;





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        char read_register(char register_name);





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        void write_register(char register_name, char register_value);





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        float read_register16(char register_name);





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};





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#endif // _SCP1000_H