SCP1000-D01 MEMS pressure sensor library
scp1000.h@3:29c98bdee20b, 2010-09-27 (annotated)
- Committer:
- MichaelW
- Date:
- Mon Sep 27 11:43:27 2010 +0000
- Revision:
- 3:29c98bdee20b
- Parent:
- 2:076ba33b1895
- Child:
- 4:d509ab38e2b5
Code tidied up
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
MichaelW | 0:dfe5ae6ea375 | 1 | /** |
MichaelW | 1:a45810688644 | 2 | * @section LICENSE |
MichaelW | 1:a45810688644 | 3 | *Copyright (c) 2010 ARM Ltd. |
MichaelW | 1:a45810688644 | 4 | * |
MichaelW | 1:a45810688644 | 5 | *Permission is hereby granted, free of charge, to any person obtaining a copy |
MichaelW | 1:a45810688644 | 6 | *of this software and associated documentation files (the "Software"), to deal |
MichaelW | 1:a45810688644 | 7 | *in the Software without restriction, including without limitation the rights |
MichaelW | 1:a45810688644 | 8 | *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
MichaelW | 1:a45810688644 | 9 | *copies of the Software, and to permit persons to whom the Software is |
MichaelW | 1:a45810688644 | 10 | *furnished to do so, subject to the following conditions: |
MichaelW | 1:a45810688644 | 11 | * |
MichaelW | 1:a45810688644 | 12 | *The above copyright notice and this permission notice shall be included in |
MichaelW | 1:a45810688644 | 13 | *all copies or substantial portions of the Software. |
MichaelW | 1:a45810688644 | 14 | * |
MichaelW | 1:a45810688644 | 15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
MichaelW | 1:a45810688644 | 16 | *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
MichaelW | 1:a45810688644 | 17 | *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
MichaelW | 1:a45810688644 | 18 | *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
MichaelW | 1:a45810688644 | 19 | *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
MichaelW | 1:a45810688644 | 20 | *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
MichaelW | 1:a45810688644 | 21 | *THE SOFTWARE. |
MichaelW | 1:a45810688644 | 22 | * |
MichaelW | 1:a45810688644 | 23 | * |
MichaelW | 1:a45810688644 | 24 | * @section DESCRIPTION |
MichaelW | 2:076ba33b1895 | 25 | * Library for using the SCP1000-D01 MEMS Pressure sensor |
MichaelW | 0:dfe5ae6ea375 | 26 | * |
MichaelW | 0:dfe5ae6ea375 | 27 | */ |
MichaelW | 0:dfe5ae6ea375 | 28 | |
MichaelW | 0:dfe5ae6ea375 | 29 | |
MichaelW | 0:dfe5ae6ea375 | 30 | #ifndef SCP1000_D01_H_ |
MichaelW | 0:dfe5ae6ea375 | 31 | #define SCP1000_D01_H_ |
MichaelW | 0:dfe5ae6ea375 | 32 | |
MichaelW | 0:dfe5ae6ea375 | 33 | #include "mbed.h" |
MichaelW | 0:dfe5ae6ea375 | 34 | /** |
MichaelW | 0:dfe5ae6ea375 | 35 | * Class to allow reading of the SCP1000-D01 mems pressure sensor (SPI mode). The class currently only supports High resolution mode. |
MichaelW | 2:076ba33b1895 | 36 | * This means that the sensor can be read at a maximum rate of 1.8Hz. |
MichaelW | 0:dfe5ae6ea375 | 37 | */ |
MichaelW | 0:dfe5ae6ea375 | 38 | class SCP1000{ |
MichaelW | 3:29c98bdee20b | 39 | public: |
MichaelW | 0:dfe5ae6ea375 | 40 | /** |
MichaelW | 0:dfe5ae6ea375 | 41 | *Constructor |
MichaelW | 0:dfe5ae6ea375 | 42 | * |
MichaelW | 0:dfe5ae6ea375 | 43 | * @param mosi The MOSI pin for the SPI interface |
MichaelW | 0:dfe5ae6ea375 | 44 | * @param miso The MISO pin for the SPI interface |
MichaelW | 0:dfe5ae6ea375 | 45 | * @param CSB The Chip select on the SCP1000 |
MichaelW | 0:dfe5ae6ea375 | 46 | */ |
MichaelW | 0:dfe5ae6ea375 | 47 | SCP1000(PinName mosi, PinName miso, PinName sck, PinName CSB); |
MichaelW | 0:dfe5ae6ea375 | 48 | |
MichaelW | 0:dfe5ae6ea375 | 49 | /** |
MichaelW | 0:dfe5ae6ea375 | 50 | *Read the current Pressure. |
MichaelW | 3:29c98bdee20b | 51 | *This blocks until the sensor has completed a reading |
MichaelW | 0:dfe5ae6ea375 | 52 | * |
MichaelW | 0:dfe5ae6ea375 | 53 | * @returns The pressure in pascals |
MichaelW | 0:dfe5ae6ea375 | 54 | */ |
MichaelW | 0:dfe5ae6ea375 | 55 | float read(); |
MichaelW | 0:dfe5ae6ea375 | 56 | /** |
MichaelW | 0:dfe5ae6ea375 | 57 | * Reads the temperature as measured by the SCP1000. |
MichaelW | 0:dfe5ae6ea375 | 58 | * This blocks until the sensor has completed a reading |
MichaelW | 0:dfe5ae6ea375 | 59 | * |
MichaelW | 0:dfe5ae6ea375 | 60 | *returns The temperature in degrees celsius |
MichaelW | 0:dfe5ae6ea375 | 61 | */ |
MichaelW | 0:dfe5ae6ea375 | 62 | float readTemperature(); |
MichaelW | 0:dfe5ae6ea375 | 63 | |
MichaelW | 0:dfe5ae6ea375 | 64 | |
MichaelW | 0:dfe5ae6ea375 | 65 | |
MichaelW | 0:dfe5ae6ea375 | 66 | private: |
MichaelW | 2:076ba33b1895 | 67 | /** |
MichaelW | 2:076ba33b1895 | 68 | * Method which blocks until the sensor is ready to be read. |
MichaelW | 2:076ba33b1895 | 69 | * Returns 1 when successful. |
MichaelW | 2:076ba33b1895 | 70 | */ |
MichaelW | 2:076ba33b1895 | 71 | int _waitReady(); |
MichaelW | 0:dfe5ae6ea375 | 72 | //Interfaces |
MichaelW | 0:dfe5ae6ea375 | 73 | SPI _spi; |
MichaelW | 0:dfe5ae6ea375 | 74 | DigitalOut _CSB; |
MichaelW | 3:29c98bdee20b | 75 | |
MichaelW | 3:29c98bdee20b | 76 | //Pins that woudl be required to use SCP1000 in different modes |
MichaelW | 2:076ba33b1895 | 77 | // DigitalIn _DRDY; //Interrupt data ready - also need to be able to attach a function to this class |
MichaelW | 0:dfe5ae6ea375 | 78 | // DigitalOut _TRIG; //Trigger |
MichaelW | 2:076ba33b1895 | 79 | // DigitalOut _PD; //Power Down |
MichaelW | 0:dfe5ae6ea375 | 80 | |
MichaelW | 0:dfe5ae6ea375 | 81 | |
MichaelW | 0:dfe5ae6ea375 | 82 | }; |
MichaelW | 0:dfe5ae6ea375 | 83 | #endif |