Files
allwpilib/wpilibc/wpilibC++/include/AnalogChannel.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

84 lines
2.6 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 "HAL/HAL.hpp"
#include "SensorBase.h"
#include "PIDSource.h"
#include "LiveWindow/LiveWindowSendable.h"
class AnalogModule;
/**
* Analog channel class.
*
* Each analog channel is read from hardware as a 12-bit number representing -10V to 10V.
*
* Connected to each analog channel is an averaging and oversampling engine. This engine accumulates
* the specified ( by SetAverageBits() and SetOversampleBits() ) number of samples before returning a new
* value. This is not a sliding window average. The only difference between the oversampled samples and
* the averaged samples is that the oversampled samples are simply accumulated effectively increasing the
* resolution, while the averaged samples are divided by the number of samples to retain the resolution,
* but get more stable values.
*/
class AnalogChannel : public SensorBase, public PIDSource, public LiveWindowSendable
{
public:
static const uint8_t kAccumulatorModuleNumber = 1;
static const uint32_t kAccumulatorNumChannels = 2;
static const uint32_t kAccumulatorChannels[kAccumulatorNumChannels];
AnalogChannel(uint8_t moduleNumber, uint32_t channel);
explicit AnalogChannel(uint32_t channel);
virtual ~AnalogChannel();
AnalogModule *GetModule();
int16_t GetValue();
int32_t GetAverageValue();
float GetVoltage();
float GetAverageVoltage();
uint8_t GetModuleNumber();
uint32_t GetChannel();
void SetAverageBits(uint32_t bits);
uint32_t GetAverageBits();
void SetOversampleBits(uint32_t bits);
uint32_t GetOversampleBits();
uint32_t GetLSBWeight();
int32_t GetOffset();
bool IsAccumulatorChannel();
void InitAccumulator();
void SetAccumulatorInitialValue(int64_t value);
void ResetAccumulator();
void SetAccumulatorCenter(int32_t center);
void SetAccumulatorDeadband(int32_t deadband);
int64_t GetAccumulatorValue();
uint32_t GetAccumulatorCount();
void GetAccumulatorOutput(int64_t *value, uint32_t *count);
double PIDGet();
void UpdateTable();
void StartLiveWindowMode();
void StopLiveWindowMode();
std::string GetSmartDashboardType();
void InitTable(ITable *subTable);
ITable * GetTable();
private:
void InitChannel(uint8_t moduleNumber, uint32_t channel);
uint32_t m_channel, m_module;
void* m_port;
int64_t m_accumulatorOffset;
ITable *m_table;
};