Emilio Monti / MMA8451Q

samux MMA8451Q accelerometer library

Dependents:   AirMouse FRDM_LCD4884 TextLCD_HelloWorld FRDM_MMA8451Q ... more

MMA8451Q.h@1:d2630136d51e, 2012-10-11 (annotated)

Committer:
samux
Date:
Thu Oct 11 14:26:22 2012 +0000
Revision:
1:d2630136d51e
Parent:
0:6149091f755d
Child:
2:a077541cbadc
modify doxygen comments/add license

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 1:d2630136d51e 26 * #include "mbed.h"
samux 1:d2630136d51e 27 * #include "MMA8451Q.h"
samux 1:d2630136d51e 28 *
samux 1:d2630136d51e 29 * #define MMA8451_I2C_ADDRESS (0x1d<<1)
samux 1:d2630136d51e 30 *
samux 1:d2630136d51e 31 * int main(void) {
samux 1:d2630136d51e 32 * DigitalOut led(LED_GREEN);
samux 1:d2630136d51e 33 * MMA8451Q acc(P_E25, P_E24, MMA8451_I2C_ADDRESS);
samux 1:d2630136d51e 34 * printf("WHO AM I: 0x%2X\r\n", acc.getWhoAmI());
samux 1:d2630136d51e 35 *
samux 1:d2630136d51e 36 * while (true) {
samux 1:d2630136d51e 37 * printf("-----------\r\n");
samux 1:d2630136d51e 38 * printf("acc_x: %d\r\n", acc.getAccX());
samux 1:d2630136d51e 39 * printf("acc_y: %d\r\n", acc.getAccY());
samux 1:d2630136d51e 40 * printf("acc_z: %d\r\n", acc.getAccZ());
samux 1:d2630136d51e 41 *
samux 1:d2630136d51e 42 * wait(1);
samux 1:d2630136d51e 43 * led = !led;
samux 1:d2630136d51e 44 * }
samux 1:d2630136d51e 45 * }
samux 1:d2630136d51e 46 */
emilmont 0:6149091f755d 47 class MMA8451Q
emilmont 0:6149091f755d 48 {
emilmont 0:6149091f755d 49 public:
samux 1:d2630136d51e 50 /**
samux 1:d2630136d51e 51 * MMA8451Q constructor
samux 1:d2630136d51e 52 *
samux 1:d2630136d51e 53 * @param sda SDA pin
samux 1:d2630136d51e 54 * @param sdl SCL pin
samux 1:d2630136d51e 55 * @param addr addr of the I2C peripheral
emilmont 0:6149091f755d 56 */
emilmont 0:6149091f755d 57 MMA8451Q(PinName sda, PinName scl, int addr);
emilmont 0:6149091f755d 58
samux 1:d2630136d51e 59 /**
samux 1:d2630136d51e 60 * MMA8451Q destructor
emilmont 0:6149091f755d 61 */
emilmont 0:6149091f755d 62 ~MMA8451Q();
emilmont 0:6149091f755d 63
samux 1:d2630136d51e 64 /**
emilmont 0:6149091f755d 65 * Get the value of the WHO_AM_I register
emilmont 0:6149091f755d 66 *
samux 1:d2630136d51e 67 * @returns WHO_AM_I value
emilmont 0:6149091f755d 68 */
emilmont 0:6149091f755d 69 uint8_t getWhoAmI();
emilmont 0:6149091f755d 70
samux 1:d2630136d51e 71 /**
emilmont 0:6149091f755d 72 * Get X axis acceleration
emilmont 0:6149091f755d 73 *
samux 1:d2630136d51e 74 * @returns X axis acceleration
emilmont 0:6149091f755d 75 */
emilmont 0:6149091f755d 76 int16_t getAccX();
emilmont 0:6149091f755d 77
samux 1:d2630136d51e 78 /**
emilmont 0:6149091f755d 79 * Get Y axis acceleration
emilmont 0:6149091f755d 80 *
samux 1:d2630136d51e 81 * @returns Y axis acceleration
emilmont 0:6149091f755d 82 */
emilmont 0:6149091f755d 83 int16_t getAccY();
emilmont 0:6149091f755d 84
samux 1:d2630136d51e 85 /**
emilmont 0:6149091f755d 86 * Get Z axis acceleration
emilmont 0:6149091f755d 87 *
samux 1:d2630136d51e 88 * @returns Z axis acceleration
emilmont 0:6149091f755d 89 */
emilmont 0:6149091f755d 90 int16_t getAccZ();
emilmont 0:6149091f755d 91
samux 1:d2630136d51e 92 /**
emilmont 0:6149091f755d 93 * Get XYZ axis acceleration
emilmont 0:6149091f755d 94 *
samux 1:d2630136d51e 95 * @param res array where acceleration data will be stored
emilmont 0:6149091f755d 96 */
samux 1:d2630136d51e 97 void getAccAllAxis(int16_t * res);
emilmont 0:6149091f755d 98
emilmont 0:6149091f755d 99 private:
samux 1:d2630136d51e 100 I2C m_i2c;
emilmont 0:6149091f755d 101 int m_addr;
samux 1:d2630136d51e 102 void readRegs(int addr, uint8_t * data, int len);
samux 1:d2630136d51e 103 void writeRegs(uint8_t * data, int len);
emilmont 0:6149091f755d 104 int16_t getAccAxis(uint8_t addr);
emilmont 0:6149091f755d 105
emilmont 0:6149091f755d 106 };
emilmont 0:6149091f755d 107
emilmont 0:6149091f755d 108 #endif