mbed official / mbed-rtos

Official mbed Real Time Operating System based on the RTX implementation of the CMSIS-RTOS API open standard.

Dependents:   denki-yohou_b TestY201 Network-RTOS NTPClient_HelloWorld ... more

Deprecated

This is the mbed 2 rtos library. mbed OS 5 integrates the mbed library with mbed-rtos. With this, we have provided thread safety for all mbed APIs. If you'd like to learn about using mbed OS 5, please see the docs.

rtx/TARGET_CORTEX_M/rt_Time.c@125:5713cbbdb706, 2017-07-04 (annotated)

Committer:
Kojto
Date:
Tue Jul 04 13:32:20 2017 +0100
Revision:
125:5713cbbdb706
Parent:
112:53ace74b190c 
replace mbed_rtx by mbed_rtx4



Not causing a conflict with mbed_rtx that is for newer rtos

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 49:77c8e4604045 1 /*----------------------------------------------------------------------------
mbed_official 112:53ace74b190c 2 * CMSIS-RTOS - RTX
mbed_official 49:77c8e4604045 3 *----------------------------------------------------------------------------
mbed_official 49:77c8e4604045 4 * Name: RT_TIME.C
mbed_official 49:77c8e4604045 5 * Purpose: Delay and interval wait functions
mbed_official 112:53ace74b190c 6 * Rev.: V4.79
mbed_official 49:77c8e4604045 7 *----------------------------------------------------------------------------
mbed_official 49:77c8e4604045 8 *
mbed_official 112:53ace74b190c 9 * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
mbed_official 49:77c8e4604045 10 * All rights reserved.
mbed_official 49:77c8e4604045 11 * Redistribution and use in source and binary forms, with or without
mbed_official 49:77c8e4604045 12 * modification, are permitted provided that the following conditions are met:
mbed_official 49:77c8e4604045 13 * - Redistributions of source code must retain the above copyright
mbed_official 49:77c8e4604045 14 * notice, this list of conditions and the following disclaimer.
mbed_official 49:77c8e4604045 15 * - Redistributions in binary form must reproduce the above copyright
mbed_official 49:77c8e4604045 16 * notice, this list of conditions and the following disclaimer in the
mbed_official 49:77c8e4604045 17 * documentation and/or other materials provided with the distribution.
mbed_official 49:77c8e4604045 18 * - Neither the name of ARM nor the names of its contributors may be used
mbed_official 49:77c8e4604045 19 * to endorse or promote products derived from this software without
mbed_official 49:77c8e4604045 20 * specific prior written permission.
mbed_official 49:77c8e4604045 21 *
mbed_official 49:77c8e4604045 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 49:77c8e4604045 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 49:77c8e4604045 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbed_official 49:77c8e4604045 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mbed_official 49:77c8e4604045 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbed_official 49:77c8e4604045 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbed_official 49:77c8e4604045 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official 49:77c8e4604045 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official 49:77c8e4604045 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbed_official 49:77c8e4604045 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 49:77c8e4604045 32 * POSSIBILITY OF SUCH DAMAGE.
mbed_official 49:77c8e4604045 33 *---------------------------------------------------------------------------*/
mbed_official 49:77c8e4604045 34
mbed_official 49:77c8e4604045 35 #include "rt_TypeDef.h"
mbed_official 112:53ace74b190c 36 #include "RTX_Config.h"
mbed_official 49:77c8e4604045 37 #include "rt_Task.h"
mbed_official 49:77c8e4604045 38 #include "rt_Time.h"
mbed_official 49:77c8e4604045 39
mbed_official 49:77c8e4604045 40 /*----------------------------------------------------------------------------
mbed_official 49:77c8e4604045 41 * Global Variables
mbed_official 49:77c8e4604045 42 *---------------------------------------------------------------------------*/
mbed_official 49:77c8e4604045 43
mbed_official 49:77c8e4604045 44 /* Free running system tick counter */
mbed_official 49:77c8e4604045 45 U32 os_time;
mbed_official 49:77c8e4604045 46
mbed_official 49:77c8e4604045 47
mbed_official 49:77c8e4604045 48 /*----------------------------------------------------------------------------
mbed_official 49:77c8e4604045 49 * Functions
mbed_official 49:77c8e4604045 50 *---------------------------------------------------------------------------*/
mbed_official 49:77c8e4604045 51
mbed_official 49:77c8e4604045 52
mbed_official 49:77c8e4604045 53 /*--------------------------- rt_time_get -----------------------------------*/
mbed_official 49:77c8e4604045 54
mbed_official 49:77c8e4604045 55 U32 rt_time_get (void) {
mbed_official 49:77c8e4604045 56 /* Get system time tick */
mbed_official 49:77c8e4604045 57 return (os_time);
mbed_official 49:77c8e4604045 58 }
mbed_official 49:77c8e4604045 59
mbed_official 49:77c8e4604045 60
mbed_official 49:77c8e4604045 61 /*--------------------------- rt_dly_wait -----------------------------------*/
mbed_official 49:77c8e4604045 62
mbed_official 49:77c8e4604045 63 void rt_dly_wait (U16 delay_time) {
mbed_official 49:77c8e4604045 64 /* Delay task by "delay_time" */
mbed_official 49:77c8e4604045 65 rt_block (delay_time, WAIT_DLY);
mbed_official 49:77c8e4604045 66 }
mbed_official 49:77c8e4604045 67
mbed_official 49:77c8e4604045 68
mbed_official 49:77c8e4604045 69 /*--------------------------- rt_itv_set ------------------------------------*/
mbed_official 49:77c8e4604045 70
mbed_official 49:77c8e4604045 71 void rt_itv_set (U16 interval_time) {
mbed_official 49:77c8e4604045 72 /* Set interval length and define start of first interval */
mbed_official 49:77c8e4604045 73 os_tsk.run->interval_time = interval_time;
mbed_official 49:77c8e4604045 74 os_tsk.run->delta_time = interval_time + (U16)os_time;
mbed_official 49:77c8e4604045 75 }
mbed_official 49:77c8e4604045 76
mbed_official 49:77c8e4604045 77
mbed_official 49:77c8e4604045 78 /*--------------------------- rt_itv_wait -----------------------------------*/
mbed_official 49:77c8e4604045 79
mbed_official 49:77c8e4604045 80 void rt_itv_wait (void) {
mbed_official 49:77c8e4604045 81 /* Wait for interval end and define start of next one */
mbed_official 49:77c8e4604045 82 U16 delta;
mbed_official 49:77c8e4604045 83
mbed_official 49:77c8e4604045 84 delta = os_tsk.run->delta_time - (U16)os_time;
mbed_official 49:77c8e4604045 85 os_tsk.run->delta_time += os_tsk.run->interval_time;
mbed_official 112:53ace74b190c 86 if ((delta & 0x8000U) == 0U) {
mbed_official 49:77c8e4604045 87 rt_block (delta, WAIT_ITV);
mbed_official 49:77c8e4604045 88 }
mbed_official 49:77c8e4604045 89 }
mbed_official 49:77c8e4604045 90
mbed_official 49:77c8e4604045 91 /*----------------------------------------------------------------------------
mbed_official 49:77c8e4604045 92 * end of file
mbed_official 49:77c8e4604045 93 *---------------------------------------------------------------------------*/