| 1 |
580 |
jeremybenn |
/* ----------------------------------------------------------------------------
|
| 2 |
|
|
* ATMEL Microcontroller Software Support
|
| 3 |
|
|
* ----------------------------------------------------------------------------
|
| 4 |
|
|
* Copyright (c) 2008, Atmel Corporation
|
| 5 |
|
|
*
|
| 6 |
|
|
* All rights reserved.
|
| 7 |
|
|
*
|
| 8 |
|
|
* Redistribution and use in source and binary forms, with or without
|
| 9 |
|
|
* modification, are permitted provided that the following conditions are met:
|
| 10 |
|
|
*
|
| 11 |
|
|
* - Redistributions of source code must retain the above copyright notice,
|
| 12 |
|
|
* this list of conditions and the disclaimer below.
|
| 13 |
|
|
*
|
| 14 |
|
|
* Atmel's name may not be used to endorse or promote products derived from
|
| 15 |
|
|
* this software without specific prior written permission.
|
| 16 |
|
|
*
|
| 17 |
|
|
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
|
| 18 |
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
| 19 |
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
| 20 |
|
|
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
|
| 21 |
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| 22 |
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
| 23 |
|
|
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
| 24 |
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
| 25 |
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
| 26 |
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| 27 |
|
|
* ----------------------------------------------------------------------------
|
| 28 |
|
|
*/
|
| 29 |
|
|
|
| 30 |
|
|
//------------------------------------------------------------------------------
|
| 31 |
|
|
/// \unit
|
| 32 |
|
|
///
|
| 33 |
|
|
/// !Purpose
|
| 34 |
|
|
///
|
| 35 |
|
|
/// API for configuring and using Timer Counter (TC) peripherals.
|
| 36 |
|
|
///
|
| 37 |
|
|
/// !Usage
|
| 38 |
|
|
/// -# Optionally, use TC_FindMckDivisor() to let the program find the best
|
| 39 |
|
|
/// TCCLKS field value automatically.
|
| 40 |
|
|
/// -# Configure a Timer Counter in the desired mode using TC_Configure().
|
| 41 |
|
|
/// -# Start or stop the timer clock using TC_Start() and TC_Stop().
|
| 42 |
|
|
//------------------------------------------------------------------------------
|
| 43 |
|
|
|
| 44 |
|
|
#ifndef TC_H
|
| 45 |
|
|
#define TC_H
|
| 46 |
|
|
|
| 47 |
|
|
//------------------------------------------------------------------------------
|
| 48 |
|
|
// Headers
|
| 49 |
|
|
//------------------------------------------------------------------------------
|
| 50 |
|
|
|
| 51 |
|
|
#include <board.h>
|
| 52 |
|
|
|
| 53 |
|
|
#if defined(AT91C_ID_TC0)
|
| 54 |
|
|
// nothing to do
|
| 55 |
|
|
#elif defined(AT91C_ID_TC012)
|
| 56 |
|
|
#define AT91C_ID_TC0 AT91C_ID_TC012
|
| 57 |
|
|
#elif defined(AT91C_ID_TC)
|
| 58 |
|
|
#define AT91C_ID_TC0 AT91C_ID_TC
|
| 59 |
|
|
#else
|
| 60 |
|
|
#error Pb define ID_TC
|
| 61 |
|
|
#endif
|
| 62 |
|
|
|
| 63 |
|
|
//------------------------------------------------------------------------------
|
| 64 |
|
|
// Global functions
|
| 65 |
|
|
//------------------------------------------------------------------------------
|
| 66 |
|
|
|
| 67 |
|
|
extern void TC_Configure(AT91S_TC *pTc, unsigned int mode);
|
| 68 |
|
|
|
| 69 |
|
|
extern void TC_Start(AT91S_TC *pTc);
|
| 70 |
|
|
|
| 71 |
|
|
extern void TC_Stop(AT91S_TC *pTc);
|
| 72 |
|
|
|
| 73 |
|
|
extern unsigned char TC_FindMckDivisor(
|
| 74 |
|
|
unsigned int freq,
|
| 75 |
|
|
unsigned int mck,
|
| 76 |
|
|
unsigned int *div,
|
| 77 |
|
|
unsigned int *tcclks);
|
| 78 |
|
|
|
| 79 |
|
|
#endif //#ifndef TC_H
|
| 80 |
|
|
|
