SCP1000.h
- Committer:
- joosttromp
- Date:
- 2011-06-17
- Revision:
- 0:55ea30b5de1e
File content as of revision 0:55ea30b5de1e:
/** * @section LICENSE * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * @section DESCRIPTION * Library to interface with the SCP1000 pressure and temperature sensor. */ #ifndef _SCP1000_H #define _SCP1000_H #include "mbed.h" /** * Class to interface with the SCP1000 pressure and temperature sensor. */ class SCP1000 { public: /** * Constructor. * * @param mosi SPI MOSI pin * @param miso SPI MISO pin * @param sclk SPI SCLK pin * @param cs Chip select pin */ SCP1000(PinName mosi, PinName miso, PinName sclk, PinName cs); ~SCP1000() { /* empty */ }; /** * Read the pressure. * * @returns The pressure in pascals. */ unsigned long readPressure(); /** * Read the temperature. * * @returns The temperature in Celsius. */ float readTemperature(); private: static const char PRESSURE = 0x1F; //Pressure 3 MSB static const char PRESSURE_LSB = 0x20; //Pressure 16 LSB static const char TEMP = 0x21; //16 bit temp SPI m_spi; DigitalOut m_cs; char read_register(char register_name); void write_register(char register_name, char register_value); float read_register16(char register_name); }; #endif // _SCP1000_H