clemente di caprio / FRDM_MMA8451Q

Added code to manage Orientation, FreeFall and Motion Detection. Data is also available via IRQ.

Dependents:   Test_FRDM_MMA8451Q AccelTest FRDM-KL46-Template KL25Z_Demo ... more

Fork of MMA8451Q by Emilio Monti

MMA8451Q.h@5:695063448f2a, 2013-05-28 (annotated)

Committer:
clemente
Date:
Tue May 28 04:39:42 2013 +0000
Revision:
5:695063448f2a
Parent:
4:c4d879a39775
Child:
6:c52175d13e0a
Code for Motion and FreeFall detection.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:d2630136d51e 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
samux 1:d2630136d51e 2 *
samux 1:d2630136d51e 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:d2630136d51e 4 * and associated documentation files (the "Software"), to deal in the Software without
samux 1:d2630136d51e 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
samux 1:d2630136d51e 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
samux 1:d2630136d51e 7 * Software is furnished to do so, subject to the following conditions:
samux 1:d2630136d51e 8 *
samux 1:d2630136d51e 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:d2630136d51e 10 * substantial portions of the Software.
samux 1:d2630136d51e 11 *
samux 1:d2630136d51e 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:d2630136d51e 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:d2630136d51e 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:d2630136d51e 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:d2630136d51e 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:d2630136d51e 17 */
samux 1:d2630136d51e 18
emilmont 0:6149091f755d 19 #ifndef MMA8451Q_H
emilmont 0:6149091f755d 20 #define MMA8451Q_H
emilmont 0:6149091f755d 21
emilmont 0:6149091f755d 22 #include "mbed.h"
emilmont 0:6149091f755d 23
samux 1:d2630136d51e 24 /**
samux 1:d2630136d51e 25 * MMA8451Q accelerometer example
samux 2:a077541cbadc 26 *
samux 2:a077541cbadc 27 * @code
samux 1:d2630136d51e 28 * #include "mbed.h"
samux 1:d2630136d51e 29 * #include "MMA8451Q.h"
chris 3:db7126dbd63f 30 *
samux 1:d2630136d51e 31 * #define MMA8451_I2C_ADDRESS (0x1d<<1)
chris 3:db7126dbd63f 32 *
chris 4:c4d879a39775 33 * int main(void) {
chris 4:c4d879a39775 34 *
chris 3:db7126dbd63f 35 * MMA8451Q acc(P_E25, P_E24, MMA8451_I2C_ADDRESS);
chris 3:db7126dbd63f 36 * PwmOut rled(LED_RED);
chris 3:db7126dbd63f 37 * PwmOut gled(LED_GREEN);
chris 3:db7126dbd63f 38 * PwmOut bled(LED_BLUE);
chris 3:db7126dbd63f 39 *
chris 3:db7126dbd63f 40 * while (true) {
chris 3:db7126dbd63f 41 * rled = 1.0 - abs(acc.getAccX());
chris 3:db7126dbd63f 42 * gled = 1.0 - abs(acc.getAccY());
chris 3:db7126dbd63f 43 * bled = 1.0 - abs(acc.getAccZ());
chris 3:db7126dbd63f 44 * wait(0.1);
chris 3:db7126dbd63f 45 * }
samux 1:d2630136d51e 46 * }
samux 2:a077541cbadc 47 * @endcode
samux 1:d2630136d51e 48 */
emilmont 0:6149091f755d 49 class MMA8451Q
emilmont 0:6149091f755d 50 {
emilmont 0:6149091f755d 51 public:
clemente 5:695063448f2a 52 /**
clemente 5:695063448f2a 53 * MMA8451Q constructor
clemente 5:695063448f2a 54 *
clemente 5:695063448f2a 55 * @param sda SDA pin
clemente 5:695063448f2a 56 * @param sdl SCL pin
clemente 5:695063448f2a 57 * @param addr addr of the I2C peripheral
clemente 5:695063448f2a 58 */
clemente 5:695063448f2a 59 MMA8451Q(PinName sda, PinName scl, int addr);
clemente 5:695063448f2a 60
clemente 5:695063448f2a 61 /**
clemente 5:695063448f2a 62 * MMA8451Q destructor
clemente 5:695063448f2a 63 */
clemente 5:695063448f2a 64 ~MMA8451Q();
clemente 5:695063448f2a 65
clemente 5:695063448f2a 66 /**
clemente 5:695063448f2a 67 * Get the value of the WHO_AM_I register
clemente 5:695063448f2a 68 *
clemente 5:695063448f2a 69 * @returns WHO_AM_I value
clemente 5:695063448f2a 70 */
clemente 5:695063448f2a 71 uint8_t getWhoAmI();
clemente 5:695063448f2a 72
clemente 5:695063448f2a 73 /**
clemente 5:695063448f2a 74 * Get X axis acceleration
clemente 5:695063448f2a 75 *
clemente 5:695063448f2a 76 * @returns X axis acceleration
clemente 5:695063448f2a 77 */
clemente 5:695063448f2a 78 float getAccX();
clemente 5:695063448f2a 79
clemente 5:695063448f2a 80 /**
clemente 5:695063448f2a 81 * Get Y axis acceleration
clemente 5:695063448f2a 82 *
clemente 5:695063448f2a 83 * @returns Y axis acceleration
clemente 5:695063448f2a 84 */
clemente 5:695063448f2a 85 float getAccY();
clemente 5:695063448f2a 86
clemente 5:695063448f2a 87 /**
clemente 5:695063448f2a 88 * Get Z axis acceleration
clemente 5:695063448f2a 89 *
clemente 5:695063448f2a 90 * @returns Z axis acceleration
clemente 5:695063448f2a 91 */
clemente 5:695063448f2a 92 float getAccZ();
clemente 5:695063448f2a 93
clemente 5:695063448f2a 94 /**
clemente 5:695063448f2a 95 * Get XYZ axis acceleration
clemente 5:695063448f2a 96 *
clemente 5:695063448f2a 97 * @param res array where acceleration data will be stored
clemente 5:695063448f2a 98 */
clemente 5:695063448f2a 99 void getAccAllAxis(float * res);
emilmont 0:6149091f755d 100
clemente 5:695063448f2a 101 void FreFallDetection( void(*fptr)(void));
clemente 5:695063448f2a 102 void MotionDetection( void(*fptr)(void));
clemente 5:695063448f2a 103
emilmont 0:6149091f755d 104 private:
clemente 5:695063448f2a 105 I2C m_i2c;
clemente 5:695063448f2a 106 int m_addr;
clemente 5:695063448f2a 107 void readRegs(int addr, uint8_t * data, int len);
clemente 5:695063448f2a 108 void writeRegs(uint8_t * data, int len);
clemente 5:695063448f2a 109 int16_t getAccAxis(uint8_t addr);
clemente 5:695063448f2a 110 void Standby( void);
clemente 5:695063448f2a 111 void Active( void);
clemente 5:695063448f2a 112 void Fall_IRQ( void);
clemente 5:695063448f2a 113 void Motion_IRQ( void);
emilmont 0:6149091f755d 114 };
emilmont 0:6149091f755d 115
emilmont 0:6149091f755d 116 #endif