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digistump-sam/system/libsam/include/tc.h

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+/* ----------------------------------------------------------------------------
+ *         SAM Software Package License
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2011-2012, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following condition is 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.
+ * ----------------------------------------------------------------------------
+ */
+
+/**
+ *  \file
+ *
+ *  \section Purpose
+ *
+ *  Interface for configuring and using Timer Counter (TC) peripherals.
+ *
+ *  \section 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_
+#define _TC_
+
+/*------------------------------------------------------------------------------
+ *         Headers
+ *------------------------------------------------------------------------------*/
+
+#include "../chip.h"
+
+#include <stdint.h>
+
+/*------------------------------------------------------------------------------
+ *         Global functions
+ *------------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+extern void TC_Configure( Tc *pTc, uint32_t dwChannel, uint32_t dwMode ) ;
+
+extern void TC_Start( Tc *pTc, uint32_t dwChannel ) ;
+
+extern void TC_Stop( Tc *pTc, uint32_t dwChannel ) ;
+
+extern uint32_t TC_FindMckDivisor( uint32_t dwFreq, uint32_t dwMCk, uint32_t *dwDiv, uint32_t *dwTcClks, uint32_t dwBoardMCK ) ;
+
+extern uint32_t TC_ReadCV(Tc *p_tc, uint32_t ul_channel);
+
+extern uint32_t TC_GetStatus(Tc *p_tc, uint32_t ul_channel);
+
+extern void TC_SetRA(Tc *tc, uint32_t chan, uint32_t v) ;
+
+extern void TC_SetRB(Tc *tc, uint32_t chan, uint32_t v) ;
+
+extern void TC_SetRC(Tc *tc, uint32_t chan, uint32_t v) ;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* #ifndef _TC_ */
+