xCounter::xCounter(EncodingType encodingType, DigitalSource *upSource, DigitalSource *downSource, bool inverted) :
m_upSource(NULL),
m_downSource(NULL),
m_counter(NULL),
m_encodingType(encodingType)
{
if (encodingType != k1X && encodingType != k2X)
{
wpi_setWPIErrorWithContext(ParameterOutOfRange, "Counter only supports 1X and 2X quadrature decoding.");
return;
}
InitCounter(kExternalDirection);
SetUpSource(upSource);
SetDownSource(downSource);
tRioStatusCode localStatus = NiFpga_Status_Success;
if (encodingType == k1X)
{
SetUpSourceEdge(true, false);
m_counter->writeTimerConfig_AverageSize(1, &localStatus);
}
else
{
SetUpSourceEdge(true, true);
m_counter->writeTimerConfig_AverageSize(2, &localStatus);
}
wpi_setError(localStatus);
SetDownSourceEdge(inverted, true);
}
Counter::Counter(EncodingType encodingType, DigitalSource *upSource, DigitalSource *downSource, bool inverted)
{
wpi_assert(encodingType == k1X || encodingType == k2X);
InitCounter(kExternalDirection);
SetUpSource(upSource);
SetDownSource(downSource);
if (encodingType == k1X)
{
SetUpSourceEdge(true, false);
m_counter->writeTimerConfig_AverageSize(1, &status);
}
else
{
SetUpSourceEdge(true, true);
m_counter->writeTimerConfig_AverageSize(2, &status);
}
SetDownSourceEdge(inverted, true);
}
/**
* Set the source object that causes the counter to count down.
* Set the down counting DigitalSource.
*/
void xCounter::SetDownSource(DigitalSource &source)
{
SetDownSource(&source);
}
/**
* Set the down counting source to be an analog trigger.
* @param analogTrigger The analog trigger object that is used for the Down Source
* @param triggerType The analog trigger output that will trigger the counter.
*/
void xCounter::SetDownSource(AnalogTrigger &analogTrigger, AnalogTriggerOutput::Type triggerType)
{
SetDownSource(&analogTrigger, triggerType);
}
/**
* Set the down counting source to be an analog trigger.
* @param analogTrigger The analog trigger object that is used for the Down Source
* @param triggerType The analog trigger output that will trigger the counter.
*/
void xCounter::SetDownSource(AnalogTrigger *analogTrigger, AnalogTriggerOutput::Type triggerType)
{
if (StatusIsFatal()) return;
SetDownSource(analogTrigger->CreateOutput(triggerType));
m_allocatedDownSource = true;
}
/**
* Set the down counting source to be a digital input slot and channel.
*
* @param moduleNumber The digital module (1 or 2).
* @param channel The digital channel (1..14).
*/
void xCounter::SetDownSource(UINT8 moduleNumber, UINT32 channel)
{
if (StatusIsFatal()) return;
SetDownSource(new DigitalInput(moduleNumber, channel));
m_allocatedDownSource = true;
}
/**
* Set the down counting source to be a digital input channel.
* The slot will be set to the default digital module slot.
*/
void Counter::SetDownSource(UINT32 channel)
{
if (StatusIsFatal()) return;
SetDownSource(new DigitalInput(channel));
m_allocatedDownSource = true;
}
/**
* Set the down counting source to be an analog trigger.
* @param analogTrigger The analog trigger object that is used for the Down Source
* @param triggerType The analog trigger output that will trigger the counter.
*/
void Counter::SetDownSource(AnalogTrigger &analogTrigger, AnalogTriggerOutput::Type triggerType)
{
SetDownSource(analogTrigger.CreateOutput(triggerType));
m_allocatedDownSource = true;
}
/**
* Set the down counting source to be a digital input slot and channel.
*/
void Counter::SetDownSource(UINT32 slot, UINT32 channel)
{
SetDownSource(new DigitalInput(slot, channel));
}
/**
* Set the down counting source to be a digital input slot and channel.
*
* @param moduleNumber The digital module (1 or 2).
* @param channel The digital channel (1..14).
*/
void Counter::SetDownSource(uint8_t moduleNumber, uint32_t channel)
{
if (StatusIsFatal()) return;
SetDownSource(new DigitalInput(moduleNumber, channel));
m_allocatedDownSource = true;
}
