Merge devel code into the trunk.

[tinyos-2.x.git] / tos / platforms / mica / Counter32khz32C.nc

diff --git a/tos/platforms/mica/Counter32khz32C.nc b/tos/platforms/mica/Counter32khz32C.nc
new file mode 100644 (file)
index 0000000..e32f6c3
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+++ b/tos/platforms/mica/Counter32khz32C.nc
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+// $Id$
+/*
+ * Copyright (c) 2005-2006 Intel Corporation
+ * All rights reserved.
+ *
+ * This file is distributed under the terms in the attached INTEL-LICENSE     
+ * file. If you do not find these files, copies can be found by writing to
+ * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
+ * 94704.  Attention:  Intel License Inquiry.
+ */
+/**
+ * 32-bit 32kHz Counter component as per TEP102 HAL guidelines. The mica
+ * family 32kHz clock is built on hardware timer 1, and actually runs at
+ * CPU frequency / 256. You can use the MeasureClockC.cyclesPerJiffy()
+ * command to figure out the exact frequency.
+ *
+ * @author David Gay <dgay@intel-research.net>
+ */
+
+#include <MicaTimer.h>
+
+configuration Counter32khz32C
+{
+  provides interface Counter<T32khz, uint32_t>;
+}
+implementation
+{
+  components CounterOne16C as Counter16, 
+    new TransformCounterC(T32khz, uint32_t, T32khz, uint16_t,
+                         MICA_DIVIDE_ONE_FOR_32KHZ_LOG2,
+                         counter_one_overflow_t) as Transform32;
+
+  Counter = Transform32;
+  Transform32.CounterFrom -> Counter16;
+}