Library for MAX31855. Based on MAX6675 library. I have only implemented the temperature reading. The chip supports also the reading of internal reference temperature and faults for shorted thermocouple and shorts to vcc/gnd.
MAX31855.h@0:a07644a18427, 2012-03-10 (annotated)
- Committer:
- ratsept
- Date:
- Sat Mar 10 19:30:40 2012 +0000
- Revision:
- 0:a07644a18427
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ratsept | 0:a07644a18427 | 1 | #ifndef MAX31855_h |
ratsept | 0:a07644a18427 | 2 | #define MAX31855_h |
ratsept | 0:a07644a18427 | 3 | |
ratsept | 0:a07644a18427 | 4 | #include "mbed.h" |
ratsept | 0:a07644a18427 | 5 | |
ratsept | 0:a07644a18427 | 6 | class MAX31855 |
ratsept | 0:a07644a18427 | 7 | { |
ratsept | 0:a07644a18427 | 8 | SPI& spi; |
ratsept | 0:a07644a18427 | 9 | DigitalOut ncs; |
ratsept | 0:a07644a18427 | 10 | public: |
ratsept | 0:a07644a18427 | 11 | |
ratsept | 0:a07644a18427 | 12 | MAX31855(SPI& _spi, PinName _ncs); |
ratsept | 0:a07644a18427 | 13 | void select(); |
ratsept | 0:a07644a18427 | 14 | void deselect(); |
ratsept | 0:a07644a18427 | 15 | |
ratsept | 0:a07644a18427 | 16 | float read_temp(); |
ratsept | 0:a07644a18427 | 17 | private: |
ratsept | 0:a07644a18427 | 18 | PinName _CS_pin; |
ratsept | 0:a07644a18427 | 19 | PinName _SO_pin; |
ratsept | 0:a07644a18427 | 20 | PinName _SCK_pin; |
ratsept | 0:a07644a18427 | 21 | int _units; |
ratsept | 0:a07644a18427 | 22 | float _error; |
ratsept | 0:a07644a18427 | 23 | }; |
ratsept | 0:a07644a18427 | 24 | |
ratsept | 0:a07644a18427 | 25 | #endif |