modified from jppang's MMA8451Q for MMA8491Q on sensor evaluation board with the FRDM-KL25Z
Fork of MMA8491Q by
MMA8491Q.h@3:3f5c717835c3, 2013-11-29 (annotated)
- Committer:
- DiyGuy
- Date:
- Fri Nov 29 23:14:21 2013 +0000
- Revision:
- 3:3f5c717835c3
- Parent:
- 2:b79d19bdfe10
Added main() example and exercises sensor EN input to trigger new readings
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jppang | 0:41db55eef564 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
jppang | 0:41db55eef564 | 2 | * |
jppang | 0:41db55eef564 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
jppang | 0:41db55eef564 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
jppang | 0:41db55eef564 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
jppang | 0:41db55eef564 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
jppang | 0:41db55eef564 | 7 | * Software is furnished to do so, subject to the following conditions: |
jppang | 0:41db55eef564 | 8 | * |
jppang | 0:41db55eef564 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
jppang | 0:41db55eef564 | 10 | * substantial portions of the Software. |
jppang | 0:41db55eef564 | 11 | * |
jppang | 0:41db55eef564 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
jppang | 0:41db55eef564 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
jppang | 0:41db55eef564 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
jppang | 0:41db55eef564 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
jppang | 0:41db55eef564 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
jppang | 0:41db55eef564 | 17 | */ |
jppang | 0:41db55eef564 | 18 | |
jppang | 0:41db55eef564 | 19 | #ifndef MMA8491Q_H |
jppang | 0:41db55eef564 | 20 | #define MMA8491Q_H |
jppang | 0:41db55eef564 | 21 | |
jppang | 0:41db55eef564 | 22 | #include "mbed.h" |
jppang | 0:41db55eef564 | 23 | |
jppang | 0:41db55eef564 | 24 | /** |
jppang | 0:41db55eef564 | 25 | * MMA8491Q accelerometer example |
jppang | 0:41db55eef564 | 26 | * |
jppang | 0:41db55eef564 | 27 | * @code |
jppang | 0:41db55eef564 | 28 | * #include "mbed.h" |
jppang | 0:41db55eef564 | 29 | * #include "MMA8491Q.h" |
jppang | 0:41db55eef564 | 30 | * |
DiyGuy | 3:3f5c717835c3 | 31 | * #define MMA8451_I2C_ADDRESS (0x55<<1) |
DiyGuy | 3:3f5c717835c3 | 32 | * |
DiyGuy | 3:3f5c717835c3 | 33 | * Serial pc(USBTX, USBRX); |
jppang | 0:41db55eef564 | 34 | * |
jppang | 0:41db55eef564 | 35 | * int main(void) { |
jppang | 0:41db55eef564 | 36 | * |
DiyGuy | 3:3f5c717835c3 | 37 | * MMA8491Q acc(PTE0, PTE1, MMA8451_I2C_ADDRESS, PTA13); |
DiyGuy | 3:3f5c717835c3 | 38 | * |
DiyGuy | 3:3f5c717835c3 | 39 | * PwmOut rled(LED_RED); |
DiyGuy | 3:3f5c717835c3 | 40 | * PwmOut gled(LED_GREEN); |
DiyGuy | 3:3f5c717835c3 | 41 | * PwmOut bled(LED_BLUE); |
DiyGuy | 3:3f5c717835c3 | 42 | * |
DiyGuy | 3:3f5c717835c3 | 43 | * float accData[3]; |
DiyGuy | 3:3f5c717835c3 | 44 | * |
DiyGuy | 3:3f5c717835c3 | 45 | * while (true) { |
DiyGuy | 3:3f5c717835c3 | 46 | * acc.getAccAllAxis(accData); |
DiyGuy | 3:3f5c717835c3 | 47 | * accX = accData[0]; |
DiyGuy | 3:3f5c717835c3 | 48 | * accY = accData[1]; |
DiyGuy | 3:3f5c717835c3 | 49 | * accZ = accData[2]; |
DiyGuy | 3:3f5c717835c3 | 50 | * |
DiyGuy | 3:3f5c717835c3 | 51 | * pc.printf("X = %5.3f", accX); |
DiyGuy | 3:3f5c717835c3 | 52 | * pc.printf(" Y = %5.3f", accY); |
DiyGuy | 3:3f5c717835c3 | 53 | * pc.printf(" Z = %5.3f\r\n", accZ); |
jppang | 0:41db55eef564 | 54 | * |
DiyGuy | 3:3f5c717835c3 | 55 | * wait(1.0); |
DiyGuy | 3:3f5c717835c3 | 56 | * } |
DiyGuy | 3:3f5c717835c3 | 57 | *} |
DiyGuy | 3:3f5c717835c3 | 58 | * |
jppang | 0:41db55eef564 | 59 | * @endcode |
jppang | 0:41db55eef564 | 60 | */ |
DiyGuy | 3:3f5c717835c3 | 61 | |
jppang | 0:41db55eef564 | 62 | class MMA8491Q |
jppang | 0:41db55eef564 | 63 | { |
jppang | 0:41db55eef564 | 64 | public: |
jppang | 0:41db55eef564 | 65 | /** |
jppang | 0:41db55eef564 | 66 | * MMA8491Q constructor |
jppang | 0:41db55eef564 | 67 | * |
jppang | 0:41db55eef564 | 68 | * @param sda SDA pin |
jppang | 0:41db55eef564 | 69 | * @param sdl SCL pin |
jppang | 0:41db55eef564 | 70 | * @param addr addr of the I2C peripheral |
DiyGuy | 2:b79d19bdfe10 | 71 | * @param en EN pin |
DiyGuy | 2:b79d19bdfe10 | 72 | * @param Xout digital output pin |
DiyGuy | 2:b79d19bdfe10 | 73 | * @param Yout digital output pin |
DiyGuy | 2:b79d19bdfe10 | 74 | * @param Zout digital output pin |
jppang | 0:41db55eef564 | 75 | */ |
DiyGuy | 2:b79d19bdfe10 | 76 | MMA8491Q(PinName sda, PinName scl, int addr, PinName en); |
jppang | 1:2d4b7fadb1e6 | 77 | |
DiyGuy | 2:b79d19bdfe10 | 78 | MMA8491Q(PinName sda, PinName scl, int addr, PinName en, PinName Xout, PinName Yout, PinName Zout); |
jppang | 0:41db55eef564 | 79 | |
jppang | 0:41db55eef564 | 80 | /** |
jppang | 0:41db55eef564 | 81 | * MMA8491Q destructor |
jppang | 0:41db55eef564 | 82 | */ |
jppang | 0:41db55eef564 | 83 | ~MMA8491Q(); |
jppang | 0:41db55eef564 | 84 | |
jppang | 0:41db55eef564 | 85 | /** |
jppang | 0:41db55eef564 | 86 | * Get X axis acceleration |
jppang | 0:41db55eef564 | 87 | * |
jppang | 0:41db55eef564 | 88 | * @returns X axis acceleration |
jppang | 0:41db55eef564 | 89 | */ |
jppang | 0:41db55eef564 | 90 | float getAccX(); |
jppang | 0:41db55eef564 | 91 | |
jppang | 0:41db55eef564 | 92 | /** |
jppang | 0:41db55eef564 | 93 | * Get Y axis acceleration |
jppang | 0:41db55eef564 | 94 | * |
jppang | 0:41db55eef564 | 95 | * @returns Y axis acceleration |
jppang | 0:41db55eef564 | 96 | */ |
jppang | 0:41db55eef564 | 97 | float getAccY(); |
jppang | 0:41db55eef564 | 98 | |
jppang | 0:41db55eef564 | 99 | /** |
jppang | 0:41db55eef564 | 100 | * Get Z axis acceleration |
jppang | 0:41db55eef564 | 101 | * |
jppang | 0:41db55eef564 | 102 | * @returns Z axis acceleration |
jppang | 0:41db55eef564 | 103 | */ |
jppang | 0:41db55eef564 | 104 | float getAccZ(); |
jppang | 0:41db55eef564 | 105 | |
jppang | 0:41db55eef564 | 106 | /** |
jppang | 0:41db55eef564 | 107 | * Get XYZ axis acceleration |
jppang | 0:41db55eef564 | 108 | * |
jppang | 0:41db55eef564 | 109 | * @param res array where acceleration data will be stored |
DiyGuy | 2:b79d19bdfe10 | 110 | * @returns true if sensor was ready and data was read |
jppang | 0:41db55eef564 | 111 | */ |
DiyGuy | 2:b79d19bdfe10 | 112 | uint8_t getAccAllAxis(float * res); |
jppang | 0:41db55eef564 | 113 | |
jppang | 0:41db55eef564 | 114 | |
jppang | 0:41db55eef564 | 115 | private: |
jppang | 0:41db55eef564 | 116 | I2C m_i2c; |
DiyGuy | 2:b79d19bdfe10 | 117 | int m_addr; //MMA8491Q address |
DiyGuy | 2:b79d19bdfe10 | 118 | DigitalOut m_en; //MMA8491Q ENABLE pin |
DiyGuy | 2:b79d19bdfe10 | 119 | PinName m_xout; |
DiyGuy | 2:b79d19bdfe10 | 120 | PinName m_yout; |
DiyGuy | 2:b79d19bdfe10 | 121 | PinName m_zout; |
DiyGuy | 2:b79d19bdfe10 | 122 | uint8_t isDataAvailable( uint8_t mask); |
DiyGuy | 2:b79d19bdfe10 | 123 | float intAccToFloat(uint8_t * data); |
DiyGuy | 2:b79d19bdfe10 | 124 | void toggleEN(void); |
jppang | 0:41db55eef564 | 125 | void readRegs(int addr, uint8_t * data, int len); |
jppang | 0:41db55eef564 | 126 | void writeRegs(uint8_t * data, int len); |
jppang | 0:41db55eef564 | 127 | int16_t getAccAxis(uint8_t addr); |
jppang | 1:2d4b7fadb1e6 | 128 | |
jppang | 0:41db55eef564 | 129 | |
jppang | 0:41db55eef564 | 130 | }; |
jppang | 0:41db55eef564 | 131 | |
jppang | 0:41db55eef564 | 132 | #endif |