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diff --git a/at91lib/peripherals/tc/tc.h b/at91lib/peripherals/tc/tc.h
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+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support 
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+/// \unit
+///
+/// !Purpose
+///
+/// API for configuring and using Timer Counter (TC) peripherals.
+///
+/// !Usage
+/// -# Optionally, use TC_FindMckDivisor() to let the program find the best
+///    TCCLKS field value automatically.
+/// -# Configure a Timer Counter in the desired mode using TC_Configure().
+/// -# Start or stop the timer clock using TC_Start() and TC_Stop().
+//------------------------------------------------------------------------------
+
+#ifndef TC_H
+#define TC_H
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include <board.h>
+
+#if !defined(AT91C_ID_TC0) && defined(AT91C_ID_TC012)
+    #define AT91C_ID_TC0 AT91C_ID_TC012
+#endif
+
+//------------------------------------------------------------------------------
+//         Global functions
+//------------------------------------------------------------------------------
+
+extern void TC_Configure(AT91S_TC *pTc, unsigned int mode);
+
+extern void TC_Start(AT91S_TC *pTc);
+
+extern void TC_Stop(AT91S_TC *pTc);
+
+extern unsigned char TC_FindMckDivisor(
+    unsigned int freq,
+    unsigned int mck,
+    unsigned int *div,
+    unsigned int *tcclks);
+
+#endif //#ifndef TC_H
+