From f99f21926e515cf93e2af35eb82808f337998738 Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Mon, 10 Jun 2013 13:21:54 +0800
Subject: update OBD logger

---
 obdlogger/MPU6050.cpp | 196 --------------------------------------------------
 1 file changed, 196 deletions(-)
 delete mode 100644 obdlogger/MPU6050.cpp

(limited to 'obdlogger/MPU6050.cpp')

diff --git a/obdlogger/MPU6050.cpp b/obdlogger/MPU6050.cpp
deleted file mode 100644
index 3091236..0000000
--- a/obdlogger/MPU6050.cpp
+++ /dev/null
@@ -1,196 +0,0 @@
-// MPU-6050 Accelerometer + Gyro
-// -----------------------------
-//
-// By arduino.cc user "Krodal".
-// June 2012
-// Open Source / Public Domain
-//
-// Using Arduino 1.0.1
-// It will not work with an older version,
-// since Wire.endTransmission() uses a parameter
-// to hold or release the I2C bus.
-//
-// Documentation:
-// - The InvenSense documents:
-//   - "MPU-6000 and MPU-6050 Product Specification",
-//     PS-MPU-6000A.pdf
-//   - "MPU-6000 and MPU-6050 Register Map and Descriptions",
-//     RM-MPU-6000A.pdf or RS-MPU-6000A.pdf
-//   - "MPU-6000/MPU-6050 9-Axis Evaluation Board User Guide"
-//     AN-MPU-6000EVB.pdf
-//
-// The accuracy is 16-bits.
-//
-// Temperature sensor from -40 to +85 degrees Celsius
-//   340 per degrees, -512 at 35 degrees.
-//
-// At power-up, all registers are zero, except these two:
-//      Register 0x6B (PWR_MGMT_2) = 0x40  (I read zero).
-//      Register 0x75 (WHO_AM_I)   = 0x68.
-//
-
-#include <Arduino.h>
-#include "MPU6050.h"
-
-// --------------------------------------------------------
-// MPU6050_read
-//
-// This is a common function to read multiple bytes
-// from an I2C device.
-//
-// It uses the boolean parameter for Wire.endTransMission()
-// to be able to hold or release the I2C-bus.
-// This is implemented in Arduino 1.0.1.
-//
-// Only this function is used to read.
-// There is no function for a single byte.
-//
-int MPU6050_read(int start, uint8_t *buffer, int size)
-{
-  int i, n;
-
-  Wire.beginTransmission(MPU6050_I2C_ADDRESS);
-  n = Wire.write(start);
-  if (n != 1)
-    return (-10);
-
-  n = Wire.endTransmission(false);    // hold the I2C-bus
-  if (n != 0)
-    return (n);
-
-  // Third parameter is true: relase I2C-bus after data is read.
-  Wire.requestFrom(MPU6050_I2C_ADDRESS, size, true);
-  i = 0;
-  while(Wire.available() && i<size)
-  {
-    buffer[i++]=Wire.read();
-  }
-  if ( i != size)
-    return (-11);
-
-  return (0);  // return : no error
-}
-
-
-// --------------------------------------------------------
-// MPU6050_write
-//
-// This is a common function to write multiple bytes to an I2C device.
-//
-// If only a single register is written,
-// use the function MPU_6050_write_reg().
-//
-// Parameters:
-//   start : Start address, use a define for the register
-//   pData : A pointer to the data to write.
-//   size  : The number of bytes to write.
-//
-// If only a single register is written, a pointer
-// to the data has to be used, and the size is
-// a single byte:
-//   int data = 0;        // the data to write
-//   MPU6050_write (MPU6050_PWR_MGMT_1, &c, 1);
-//
-int MPU6050_write(int start, const uint8_t *pData, int size)
-{
-  int n, error;
-
-  Wire.beginTransmission(MPU6050_I2C_ADDRESS);
-  n = Wire.write(start);        // write the start address
-  if (n != 1)
-    return (-20);
-
-  n = Wire.write(pData, size);  // write data bytes
-  if (n != size)
-    return (-21);
-
-  error = Wire.endTransmission(true); // release the I2C-bus
-  if (error != 0)
-    return (error);
-
-  return (0);         // return : no error
-}
-
-// --------------------------------------------------------
-// MPU6050_write_reg
-//
-// An extra function to write a single register.
-// It is just a wrapper around the MPU_6050_write()
-// function, and it is only a convenient function
-// to make it easier to write a single register.
-//
-int MPU6050_write_reg(int reg, uint8_t data)
-{
-  int error;
-
-  error = MPU6050_write(reg, &data, 1);
-
-  return (error);
-}
-
-// --------------------------------------------------------
-// MPU6050_init
-//
-// Initialization
-//
-int MPU6050_init()
-{
-        // default at power-up:
-    //    Gyro at 250 degrees second
-    //    Acceleration at 2g
-    //    Clock source at internal 8MHz
-    //    The device is in sleep mode.
-    //
-    uint8_t c;
-    int error;
-    error = MPU6050_read (MPU6050_WHO_AM_I, &c, 1);
-    if (error) return error;
-
-    // According to the datasheet, the 'sleep' bit
-    // should read a '1'. But I read a '0'.
-    // That bit has to be cleared, since the sensor
-    // is in sleep mode at power-up. Even if the
-    // bit reads '0'.
-    error = MPU6050_read (MPU6050_PWR_MGMT_2, &c, 1);
-    if (error) return error;
-
-    // Clear the 'sleep' bit to start the sensor.
-    MPU6050_write_reg (MPU6050_PWR_MGMT_1, 0);
-    return 0;
-}
-
-// --------------------------------------------------------
-// MPU6050_readout
-//
-// Perform an complete read-out
-//
-
-int MPU6050_readout(accel_t_gyro_union* accel_t_gyro)
-{
-  int error;
-
-  // Read the raw values.
-  // Read 14 bytes at once,
-  // containing acceleration, temperature and gyro.
-  // With the default settings of the MPU-6050,
-  // there is no filter enabled, and the values
-  // are not very stable.
-  error = MPU6050_read (MPU6050_ACCEL_XOUT_H, (uint8_t *)accel_t_gyro, sizeof(accel_t_gyro_union));
-  if (error) return error;
-
-  // Swap all high and low bytes.
-  // After this, the registers values are swapped,
-  // so the structure name like x_accel_l does no
-  // longer contain the lower byte.
-  uint8_t swap;
-  #define SWAP(x,y) swap = x; x = y; y = swap
-
-  SWAP (accel_t_gyro->reg.x_accel_h, accel_t_gyro->reg.x_accel_l);
-  SWAP (accel_t_gyro->reg.y_accel_h, accel_t_gyro->reg.y_accel_l);
-  SWAP (accel_t_gyro->reg.z_accel_h, accel_t_gyro->reg.z_accel_l);
-  SWAP (accel_t_gyro->reg.t_h, accel_t_gyro->reg.t_l);
-  SWAP (accel_t_gyro->reg.x_gyro_h, accel_t_gyro->reg.x_gyro_l);
-  SWAP (accel_t_gyro->reg.y_gyro_h, accel_t_gyro->reg.y_gyro_l);
-  SWAP (accel_t_gyro->reg.z_gyro_h, accel_t_gyro->reg.z_gyro_l);
-  return 0;
-}
-- 
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