Diff: MMA8652/MMA8652.h

Revision:

0:f77369cabd75

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MMA8652/MMA8652.h	Sun Dec 18 08:16:01 2022 +0000
@@ -0,0 +1,88 @@
+/* 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 MMA8652_H
+#define MMA8652_H
+
+#include "mbed.h"
+
+
+// MMA8652 Slave Address
+#define MMA8652_SLAVE_ADDR 0x38
+
+// MMA8652 internal register addresses
+#define MMA8652_STATUS 0x00
+#define MMA8652_OUT_X_MSB 0x01
+#define MMA8652_WHOAMI 0x0D
+#define MMA8652_XYZ_DATA_CFG 0x0E
+#define MMA8652_CTRL_REG1 0x2A
+#define MMA8652_WHOAMI_VAL 0x4A
+
+/**
+ * MMA8652 Xtrinsic accelerometer on I2C
+ */
+class MMA8652
+{
+public:
+    /**
+     * MMA8652 constructor
+     *
+     * @param sda SDA pin
+     * @param sdl SCL pin
+     */
+    MMA8652(PinName sda, PinName scl);
+
+    /**
+     * MMA8652 destructor
+     */
+    ~MMA8652();
+    
+    /**
+     * Get XYZ axis acceleration in floating point G's
+     *
+     * @param res array where acceleration data will be stored
+     */
+    void ReadXYZ(float * a);
+
+    /**
+     * Get XYZ axis acceleration, signed 16 bit values
+     *
+     * @param res array where acceleration data will be stored
+     */
+    void ReadXYZraw(int16_t * d);
+    
+    /**
+     * Get the value of the WHO_AM_I register
+     *
+     * @returns DEVICE_ID value == 0x3A
+     */
+    char getWhoAmI(void);
+
+private:
+    I2C _i2c;
+
+    /**
+     * Set the device in active mode
+     */
+    void begin( void);
+
+    void RegRead( char reg, char * d, int len);
+
+};
+
+#endif