1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/* ----------------------------------------------------------------------------
* 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)
// nothing to do
#elif defined(AT91C_ID_TC012)
#define AT91C_ID_TC0 AT91C_ID_TC012
#elif defined(AT91C_ID_TC)
#define AT91C_ID_TC0 AT91C_ID_TC
#else
#error Pb define ID_TC
#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
|