modified MMA8451Q library for firefly project
Fork of MMA8451Q by
MMA8451Q.h
- Committer:
- samux
- Date:
- 2012-10-11
- Revision:
- 2:a077541cbadc
- Parent:
- 1:d2630136d51e
- Child:
- 3:db7126dbd63f
File content as of revision 2:a077541cbadc:
/* Copyright (c) 2010-2011 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef MMA8451Q_H #define MMA8451Q_H #include "mbed.h" /** * MMA8451Q accelerometer example * * @code * #include "mbed.h" * #include "MMA8451Q.h" * * #define MMA8451_I2C_ADDRESS (0x1d<<1) * * int main(void) { * DigitalOut led(LED_GREEN); * MMA8451Q acc(P_E25, P_E24, MMA8451_I2C_ADDRESS); * printf("WHO AM I: 0x%2X\r\n", acc.getWhoAmI()); * * while (true) { * printf("-----------\r\n"); * printf("acc_x: %d\r\n", acc.getAccX()); * printf("acc_y: %d\r\n", acc.getAccY()); * printf("acc_z: %d\r\n", acc.getAccZ()); * * wait(1); * led = !led; * } * } * @endcode */ class MMA8451Q { public: /** * MMA8451Q constructor * * @param sda SDA pin * @param sdl SCL pin * @param addr addr of the I2C peripheral */ MMA8451Q(PinName sda, PinName scl, int addr); /** * MMA8451Q destructor */ ~MMA8451Q(); /** * Get the value of the WHO_AM_I register * * @returns WHO_AM_I value */ uint8_t getWhoAmI(); /** * Get X axis acceleration * * @returns X axis acceleration */ int16_t getAccX(); /** * Get Y axis acceleration * * @returns Y axis acceleration */ int16_t getAccY(); /** * Get Z axis acceleration * * @returns Z axis acceleration */ int16_t getAccZ(); /** * Get XYZ axis acceleration * * @param res array where acceleration data will be stored */ void getAccAllAxis(int16_t * res); private: I2C m_i2c; int m_addr; void readRegs(int addr, uint8_t * data, int len); void writeRegs(uint8_t * data, int len); int16_t getAccAxis(uint8_t addr); }; #endif