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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/**********************************************************************
* $Id$ lpc_systick.h 2011-06-02
*//**
* @file lpc_systick.h
* @brief Contains all macro definitions and function prototypes
* support for SYSTICK firmware library on LPC
* @version 1.0
* @date 02. June. 2011
* @author NXP MCU SW Application Team
*
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors'
* relevant copyright in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
**********************************************************************/
/* Peripheral group ----------------------------------------------------------- */
/** @defgroup SYSTICK SysTick (System tick timer)
* @ingroup LPC_CMSIS_FwLib_Drivers
* @{
*/
#ifndef __LPC_SYSTICK_H_
#define __LPC_SYSTICK_H_
/* Includes ------------------------------------------------------------------- */
#include "LPC407x_8x_177x_8x.h"
#include "lpc_types.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* Private Macros ------------------------------------------------------------- */
/** @defgroup SYSTICK_Private_Macros SysTick Private Macros
* @{
*/
/*********************************************************************//**
* Macro defines for System Timer Control and status (STCTRL) register
**********************************************************************/
#define ST_CTRL_ENABLE ((uint32_t)(1<<0))
#define ST_CTRL_TICKINT ((uint32_t)(1<<1))
#define ST_CTRL_CLKSOURCE ((uint32_t)(1<<2))
#define ST_CTRL_COUNTFLAG ((uint32_t)(1<<16))
/*********************************************************************//**
* Macro defines for System Timer Reload value (STRELOAD) register
**********************************************************************/
#define ST_RELOAD_RELOAD(n) ((uint32_t)(n & 0x00FFFFFF))
/*********************************************************************//**
* Macro defines for System Timer Current value (STCURRENT) register
**********************************************************************/
#define ST_RELOAD_CURRENT(n) ((uint32_t)(n & 0x00FFFFFF))
/*********************************************************************//**
* Macro defines for System Timer Calibration value (STCALIB) register
**********************************************************************/
#define ST_CALIB_TENMS(n) ((uint32_t)(n & 0x00FFFFFF))
#define ST_CALIB_SKEW ((uint32_t)(1<<30))
#define ST_CALIB_NOREF ((uint32_t)(1<<31))
#define CLKSOURCE_EXT ((uint32_t)(0))
#define CLKSOURCE_CPU ((uint32_t)(1))
/**
* @}
*/
/* Public Functions ----------------------------------------------------------- */
/** @defgroup SYSTICK_Public_Functions Systick Public Functions
* @{
*/
void SYSTICK_InternalInit(uint32_t time);
void SYSTICK_ExternalInit(uint32_t freq, uint32_t time);
void SYSTICK_Cmd(FunctionalState NewState);
void SYSTICK_IntCmd(FunctionalState NewState);
uint32_t SYSTICK_GetCurrentValue(void);
void SYSTICK_ClearCounterFlag(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __LPC_SYSTICK_H_ */
/**
* @}
*/
/* --------------------------------- End Of File ------------------------------ */
|
