Samantha Wang / MbedModules

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Dependencies:   SDFileSystem TextLCD mbed-rtos mbed wave_player FATFileSystem

MbedModules/mbed-rtos/rtx/rt_Time.c@0:6dff7b3b161d, 2014-12-26 (annotated)

Committer:
ywang627
Date:
Fri Dec 26 13:38:44 2014 +0000
Revision:
0:6dff7b3b161d
Battleship Game

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ywang627 0:6dff7b3b161d 1 /*----------------------------------------------------------------------------
ywang627 0:6dff7b3b161d 2 * RL-ARM - RTX
ywang627 0:6dff7b3b161d 3 *----------------------------------------------------------------------------
ywang627 0:6dff7b3b161d 4 * Name: RT_TIME.C
ywang627 0:6dff7b3b161d 5 * Purpose: Delay and interval wait functions
ywang627 0:6dff7b3b161d 6 * Rev.: V4.60
ywang627 0:6dff7b3b161d 7 *----------------------------------------------------------------------------
ywang627 0:6dff7b3b161d 8 *
ywang627 0:6dff7b3b161d 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
ywang627 0:6dff7b3b161d 10 * All rights reserved.
ywang627 0:6dff7b3b161d 11 * Redistribution and use in source and binary forms, with or without
ywang627 0:6dff7b3b161d 12 * modification, are permitted provided that the following conditions are met:
ywang627 0:6dff7b3b161d 13 * - Redistributions of source code must retain the above copyright
ywang627 0:6dff7b3b161d 14 * notice, this list of conditions and the following disclaimer.
ywang627 0:6dff7b3b161d 15 * - Redistributions in binary form must reproduce the above copyright
ywang627 0:6dff7b3b161d 16 * notice, this list of conditions and the following disclaimer in the
ywang627 0:6dff7b3b161d 17 * documentation and/or other materials provided with the distribution.
ywang627 0:6dff7b3b161d 18 * - Neither the name of ARM nor the names of its contributors may be used
ywang627 0:6dff7b3b161d 19 * to endorse or promote products derived from this software without
ywang627 0:6dff7b3b161d 20 * specific prior written permission.
ywang627 0:6dff7b3b161d 21 *
ywang627 0:6dff7b3b161d 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ywang627 0:6dff7b3b161d 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ywang627 0:6dff7b3b161d 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ywang627 0:6dff7b3b161d 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
ywang627 0:6dff7b3b161d 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
ywang627 0:6dff7b3b161d 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
ywang627 0:6dff7b3b161d 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
ywang627 0:6dff7b3b161d 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
ywang627 0:6dff7b3b161d 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ywang627 0:6dff7b3b161d 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
ywang627 0:6dff7b3b161d 32 * POSSIBILITY OF SUCH DAMAGE.
ywang627 0:6dff7b3b161d 33 *---------------------------------------------------------------------------*/
ywang627 0:6dff7b3b161d 34
ywang627 0:6dff7b3b161d 35 #include "rt_TypeDef.h"
ywang627 0:6dff7b3b161d 36 #include "RTX_Config.h"
ywang627 0:6dff7b3b161d 37 #include "rt_Task.h"
ywang627 0:6dff7b3b161d 38 #include "rt_Time.h"
ywang627 0:6dff7b3b161d 39
ywang627 0:6dff7b3b161d 40 /*----------------------------------------------------------------------------
ywang627 0:6dff7b3b161d 41 * Global Variables
ywang627 0:6dff7b3b161d 42 *---------------------------------------------------------------------------*/
ywang627 0:6dff7b3b161d 43
ywang627 0:6dff7b3b161d 44 /* Free running system tick counter */
ywang627 0:6dff7b3b161d 45 U32 os_time;
ywang627 0:6dff7b3b161d 46
ywang627 0:6dff7b3b161d 47
ywang627 0:6dff7b3b161d 48 /*----------------------------------------------------------------------------
ywang627 0:6dff7b3b161d 49 * Functions
ywang627 0:6dff7b3b161d 50 *---------------------------------------------------------------------------*/
ywang627 0:6dff7b3b161d 51
ywang627 0:6dff7b3b161d 52
ywang627 0:6dff7b3b161d 53 /*--------------------------- rt_time_get -----------------------------------*/
ywang627 0:6dff7b3b161d 54
ywang627 0:6dff7b3b161d 55 U32 rt_time_get (void) {
ywang627 0:6dff7b3b161d 56 /* Get system time tick */
ywang627 0:6dff7b3b161d 57 return (os_time);
ywang627 0:6dff7b3b161d 58 }
ywang627 0:6dff7b3b161d 59
ywang627 0:6dff7b3b161d 60
ywang627 0:6dff7b3b161d 61 /*--------------------------- rt_dly_wait -----------------------------------*/
ywang627 0:6dff7b3b161d 62
ywang627 0:6dff7b3b161d 63 void rt_dly_wait (U16 delay_time) {
ywang627 0:6dff7b3b161d 64 /* Delay task by "delay_time" */
ywang627 0:6dff7b3b161d 65 rt_block (delay_time, WAIT_DLY);
ywang627 0:6dff7b3b161d 66 }
ywang627 0:6dff7b3b161d 67
ywang627 0:6dff7b3b161d 68
ywang627 0:6dff7b3b161d 69 /*--------------------------- rt_itv_set ------------------------------------*/
ywang627 0:6dff7b3b161d 70
ywang627 0:6dff7b3b161d 71 void rt_itv_set (U16 interval_time) {
ywang627 0:6dff7b3b161d 72 /* Set interval length and define start of first interval */
ywang627 0:6dff7b3b161d 73 os_tsk.run->interval_time = interval_time;
ywang627 0:6dff7b3b161d 74 os_tsk.run->delta_time = interval_time + (U16)os_time;
ywang627 0:6dff7b3b161d 75 }
ywang627 0:6dff7b3b161d 76
ywang627 0:6dff7b3b161d 77
ywang627 0:6dff7b3b161d 78 /*--------------------------- rt_itv_wait -----------------------------------*/
ywang627 0:6dff7b3b161d 79
ywang627 0:6dff7b3b161d 80 void rt_itv_wait (void) {
ywang627 0:6dff7b3b161d 81 /* Wait for interval end and define start of next one */
ywang627 0:6dff7b3b161d 82 U16 delta;
ywang627 0:6dff7b3b161d 83
ywang627 0:6dff7b3b161d 84 delta = os_tsk.run->delta_time - (U16)os_time;
ywang627 0:6dff7b3b161d 85 os_tsk.run->delta_time += os_tsk.run->interval_time;
ywang627 0:6dff7b3b161d 86 if ((delta & 0x8000) == 0) {
ywang627 0:6dff7b3b161d 87 rt_block (delta, WAIT_ITV);
ywang627 0:6dff7b3b161d 88 }
ywang627 0:6dff7b3b161d 89 }
ywang627 0:6dff7b3b161d 90
ywang627 0:6dff7b3b161d 91 /*----------------------------------------------------------------------------
ywang627 0:6dff7b3b161d 92 * end of file
ywang627 0:6dff7b3b161d 93 *---------------------------------------------------------------------------*/
ywang627 0:6dff7b3b161d 94