Files
allwpilib/wpilibc/wpilibC++/include/Gyro.h
thomasclark bb50f4b134 C++ testing
Made a toplevel directory for C++ and C++ tests

Change-Id: I4bc2074a7036ec7fe79568b411637a5bee9eb5b3

Added the C++ testing framework and one test

Change-Id: I1e80a1e16b251a49666820a9d4c8caa025da9785
2014-06-02 15:36:18 -04:00

67 lines
2.3 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2008. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib. */
/*----------------------------------------------------------------------------*/
#pragma once
#include "SensorBase.h"
#include "PIDSource.h"
#include "LiveWindow/LiveWindowSendable.h"
class AnalogChannel;
class AnalogModule;
/**
* Use a rate gyro to return the robots heading relative to a starting position.
* The Gyro class tracks the robots heading based on the starting position. As the robot
* rotates the new heading is computed by integrating the rate of rotation returned
* by the sensor. When the class is instantiated, it does a short calibration routine
* where it samples the gyro while at rest to determine the default offset. This is
* subtracted from each sample to determine the heading. This gyro class must be used
* with a channel that is assigned one of the Analog accumulators from the FPGA. See
* AnalogChannel for the current accumulator assignments.
*/
class Gyro : public SensorBase, public PIDSource, public LiveWindowSendable
{
public:
static const uint32_t kOversampleBits = 10;
static const uint32_t kAverageBits = 0;
static constexpr float kSamplesPerSecond = 50.0;
static constexpr float kCalibrationSampleTime = 5.0;
static constexpr float kDefaultVoltsPerDegreePerSecond = 0.007;
Gyro(uint8_t moduleNumber, uint32_t channel);
explicit Gyro(uint32_t channel);
explicit Gyro(AnalogChannel *channel);
explicit Gyro(AnalogChannel &channel);
virtual ~Gyro();
virtual float GetAngle();
virtual double GetRate();
void SetSensitivity(float voltsPerDegreePerSecond);
void SetPIDSourceParameter(PIDSourceParameter pidSource);
virtual void Reset();
// PIDSource interface
double PIDGet();
void UpdateTable();
void StartLiveWindowMode();
void StopLiveWindowMode();
std::string GetSmartDashboardType();
void InitTable(ITable *subTable);
ITable * GetTable();
private:
void InitGyro();
AnalogChannel *m_analog;
float m_voltsPerDegreePerSecond;
float m_offset;
bool m_channelAllocated;
uint32_t m_center;
PIDSourceParameter m_pidSource;
ITable *m_table;
};