| /* ---------------------------------------------------------------------------- | |
| * 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, | |
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| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| * ---------------------------------------------------------------------------- | |
| */ | |
| //------------------------------------------------------------------------------ | |
| /// \unit | |
| /// | |
| /// !Purpose | |
| /// | |
| /// Interface for configuration the Periodic Interval Timer (PIT) peripheral. | |
| /// | |
| /// !Usage | |
| /// | |
| /// -# Initialize the PIT with the desired period using PIT_Init(). | |
| /// Alternatively, the Periodic Interval Value (PIV) can be configured | |
| /// manually using PIT_SetPIV(). | |
| /// -# Start the PIT counting using PIT_Enable(). | |
| /// -# Enable & disable the PIT interrupt using PIT_EnableIT() and | |
| /// PIT_DisableIT(). | |
| /// -# Retrieve the current status of the PIT using PIT_GetStatus(). | |
| /// -# To get the current value of the internal counter and the number of ticks | |
| /// that have occurred, use either PIT_GetPIVR() or PIT_GetPIIR() depending | |
| /// on whether you want the values to be cleared or not. | |
| //------------------------------------------------------------------------------ | |
| #ifndef PIT_H | |
| #define PIT_H | |
| //------------------------------------------------------------------------------ | |
| // Global Functions | |
| //------------------------------------------------------------------------------ | |
| extern void PIT_Init(unsigned int period, unsigned int pit_frequency); | |
| extern void PIT_SetPIV(unsigned int piv); | |
| extern void PIT_Enable(void); | |
| extern void PIT_EnableIT(void); | |
| extern void PIT_DisableIT(void); | |
| extern unsigned int PIT_GetMode(void); | |
| extern unsigned int PIT_GetStatus(void); | |
| extern unsigned int PIT_GetPIIR(void); | |
| extern unsigned int PIT_GetPIVR(void); | |
| #endif //#ifndef PIT_H | |