This is the latest WPILib src, VisionSample2013, cRIO image, ... pulled down from firstforge.wpi.edu.
There might be risks in using the top of tree rather than an official release, but the commit messages do mention fixes for some deadlocks and race conditions.
git-svn-id: https://robotics.mvla.net/svn/frc971/2013/trunk/src@4066 f308d9b7-e957-4cde-b6ac-9a88185e7312
diff --git a/azaleasource/WPILibCProgramming/trunk/WPILib/GearTooth.h b/azaleasource/WPILibCProgramming/trunk/WPILib/GearTooth.h
new file mode 100644
index 0000000..72b757c
--- /dev/null
+++ b/azaleasource/WPILibCProgramming/trunk/WPILib/GearTooth.h
@@ -0,0 +1,34 @@
+/*----------------------------------------------------------------------------*/
+/* 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. */
+/*----------------------------------------------------------------------------*/
+
+#ifndef GEAR_TOOTH_H_
+#define GEAR_TOOTH_H_
+
+#include "Counter.h"
+
+/**
+ * Alias for counter class.
+ * Implement the gear tooth sensor supplied by FIRST. Currently there is no reverse sensing on
+ * the gear tooth sensor, but in future versions we might implement the necessary timing in the
+ * FPGA to sense direction.
+ */
+class GearTooth : public Counter
+{
+public:
+ /// 55 uSec for threshold
+ static const double kGearToothThreshold = 55e-6;
+ GearTooth(UINT32 channel, bool directionSensitive = false);
+ GearTooth(UINT8 moduleNumber, UINT32 channel, bool directionSensitive = false);
+ GearTooth(DigitalSource *source, bool directionSensitive = false);
+ GearTooth(DigitalSource &source, bool directionSensitive = false);
+ virtual ~GearTooth();
+ void EnableDirectionSensing(bool directionSensitive);
+
+ virtual std::string GetSmartDashboardType();
+};
+
+
+#endif