1 | /* ---------------------------------------------------------------------------- */ |
---|
2 | /* Atmel Microcontroller Software Support */ |
---|
3 | /* SAM Software Package License */ |
---|
4 | /* ---------------------------------------------------------------------------- */ |
---|
5 | /* Copyright (c) 2015, Atmel Corporation */ |
---|
6 | /* */ |
---|
7 | /* All rights reserved. */ |
---|
8 | /* */ |
---|
9 | /* Redistribution and use in source and binary forms, with or without */ |
---|
10 | /* modification, are permitted provided that the following condition is met: */ |
---|
11 | /* */ |
---|
12 | /* - Redistributions of source code must retain the above copyright notice, */ |
---|
13 | /* this list of conditions and the disclaimer below. */ |
---|
14 | /* */ |
---|
15 | /* Atmel's name may not be used to endorse or promote products derived from */ |
---|
16 | /* this software without specific prior written permission. */ |
---|
17 | /* */ |
---|
18 | /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ |
---|
19 | /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ |
---|
20 | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ |
---|
21 | /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ |
---|
22 | /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ |
---|
23 | /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ |
---|
24 | /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ |
---|
25 | /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ |
---|
26 | /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ |
---|
27 | /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
---|
28 | /* ---------------------------------------------------------------------------- */ |
---|
29 | |
---|
30 | /** |
---|
31 | * \file |
---|
32 | * |
---|
33 | * \par Purpose |
---|
34 | * |
---|
35 | * Methods and definitions for Global time tick and wait functions. |
---|
36 | * |
---|
37 | * Defines a common and simplest use of Time Tick, to increase tickCount |
---|
38 | * every 1ms, the application can get this value through GetTickCount(). |
---|
39 | * |
---|
40 | * \par Usage |
---|
41 | * |
---|
42 | * -# Configure the System Tick with TimeTick_Configure() when MCK changed |
---|
43 | * \note |
---|
44 | * Must be done before any invoke of GetTickCount(), Wait() or Sleep(). |
---|
45 | * -# Uses GetTickCount to get current tick value. |
---|
46 | * -# Uses Wait to wait several ms. |
---|
47 | * -# Uses Sleep to enter wait for interrupt mode to wait several ms. |
---|
48 | * |
---|
49 | */ |
---|
50 | |
---|
51 | #ifndef _TIMETICK_ |
---|
52 | #define _TIMETICK_ |
---|
53 | |
---|
54 | /*---------------------------------------------------------------------------- |
---|
55 | * Headers |
---|
56 | *----------------------------------------------------------------------------*/ |
---|
57 | |
---|
58 | #include <stdint.h> |
---|
59 | |
---|
60 | /*---------------------------------------------------------------------------- |
---|
61 | * Definitions |
---|
62 | *----------------------------------------------------------------------------*/ |
---|
63 | |
---|
64 | typedef struct { |
---|
65 | volatile uint32_t *pTimer1; |
---|
66 | volatile uint32_t *pTimer2; |
---|
67 | volatile uint32_t *pTimer3; |
---|
68 | volatile uint32_t *pTimer4; |
---|
69 | } SyTickDelayCounter_t; |
---|
70 | |
---|
71 | /*---------------------------------------------------------------------------- |
---|
72 | * Definitions |
---|
73 | *----------------------------------------------------------------------------*/ |
---|
74 | typedef struct _TimeEvent { |
---|
75 | uint32_t event; |
---|
76 | uint32_t time_tick; |
---|
77 | uint32_t time_start; |
---|
78 | uint32_t occur; |
---|
79 | struct _TimeEvent *pPreEvent; |
---|
80 | struct _TimeEvent *pNextEvent; |
---|
81 | } TimeEvent; |
---|
82 | |
---|
83 | /*---------------------------------------------------------------------------- |
---|
84 | * Global functions |
---|
85 | *----------------------------------------------------------------------------*/ |
---|
86 | |
---|
87 | uint32_t TimeTick_Configure(void); |
---|
88 | |
---|
89 | void TimeTick_Increment(uint32_t dwInc); |
---|
90 | |
---|
91 | uint32_t GetDelayInTicks(uint32_t startTick, uint32_t endTick); |
---|
92 | |
---|
93 | uint32_t GetTicks(void); |
---|
94 | |
---|
95 | void Wait(volatile uint32_t dwMs); |
---|
96 | |
---|
97 | void Sleep(volatile uint32_t dwMs); |
---|
98 | |
---|
99 | extern void SetTimeEvent(TimeEvent *pEvent); |
---|
100 | |
---|
101 | #endif /* _TIMETICK_ */ |
---|