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diff --git a/peripherals/pwmc/pwmc.h b/peripherals/pwmc/pwmc.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
+///
+/// Interface for configuration the Pulse Width Modulation Controller (PWM) peripheral.
+///
+/// !Usage
+///
+///    -# Configures PWM clocks A & B to run at the given frequencies using
+///       PWMC_ConfigureClocks().
+///    -# Configure PWMC channel using PWMC_ConfigureChannel(), PWMC_SetPeriod()
+///       and PWMC_SetDutyCycle().
+///    -# Enable & disable channel using PWMC_EnableChannel() and 
+///       PWMC_DisableChannel().
+///    -# Enable & disable the period interrupt for the given PWM channel using 
+///       PWMC_EnableChannelIt() and PWMC_DisableChannelIt().
+///
+/// Please refer to the list of functions in the #Overview# tab of this unit
+/// for more detailed information.
+//------------------------------------------------------------------------------
+
+#ifndef PWMC_H
+#define PWMC_H
+
+//------------------------------------------------------------------------------
+//         Global functions
+//------------------------------------------------------------------------------
+
+extern void PWMC_ConfigureChannel(
+    unsigned char channel,
+    unsigned int prescaler,
+    unsigned int alignment,
+    unsigned int polarity);
+
+extern void PWMC_ConfigureClocks
+    (unsigned int clka,
+     unsigned int clkb,
+     unsigned int mck);
+
+extern void PWMC_SetPeriod(unsigned char channel, unsigned short period);
+
+extern void PWMC_SetDutyCycle(unsigned char channel, unsigned short duty);
+
+extern void PWMC_EnableChannel(unsigned char channel);
+
+extern void PWMC_DisableChannel(unsigned char channel);
+
+extern void PWMC_EnableChannelIt(unsigned char channel);
+
+extern void PWMC_DisableChannelIt(unsigned char channel);
+
+#endif //#ifndef PWMC_H
+