erkin yucel / mbed-os

mbed os with nrf51 internal bandgap enabled to read battery level

Dependents:   BLE_file_test BLE_Blink ExternalEncoder

rtos/rtx/TARGET_ARM7/rt_Time.c@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 2 * RL-ARM - RTX
elessair 0:f269e3021894 3 *----------------------------------------------------------------------------
elessair 0:f269e3021894 4 * Name: RT_TIME.C
elessair 0:f269e3021894 5 * Purpose: Delay and interval wait functions
elessair 0:f269e3021894 6 * Rev.: V4.60
elessair 0:f269e3021894 7 *----------------------------------------------------------------------------
elessair 0:f269e3021894 8 *
elessair 0:f269e3021894 9 * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH
elessair 0:f269e3021894 10 * All rights reserved.
elessair 0:f269e3021894 11 * Redistribution and use in source and binary forms, with or without
elessair 0:f269e3021894 12 * modification, are permitted provided that the following conditions are met:
elessair 0:f269e3021894 13 * - Redistributions of source code must retain the above copyright
elessair 0:f269e3021894 14 * notice, this list of conditions and the following disclaimer.
elessair 0:f269e3021894 15 * - Redistributions in binary form must reproduce the above copyright
elessair 0:f269e3021894 16 * notice, this list of conditions and the following disclaimer in the
elessair 0:f269e3021894 17 * documentation and/or other materials provided with the distribution.
elessair 0:f269e3021894 18 * - Neither the name of ARM nor the names of its contributors may be used
elessair 0:f269e3021894 19 * to endorse or promote products derived from this software without
elessair 0:f269e3021894 20 * specific prior written permission.
elessair 0:f269e3021894 21 *
elessair 0:f269e3021894 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
elessair 0:f269e3021894 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
elessair 0:f269e3021894 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
elessair 0:f269e3021894 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
elessair 0:f269e3021894 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
elessair 0:f269e3021894 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
elessair 0:f269e3021894 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
elessair 0:f269e3021894 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
elessair 0:f269e3021894 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
elessair 0:f269e3021894 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
elessair 0:f269e3021894 32 * POSSIBILITY OF SUCH DAMAGE.
elessair 0:f269e3021894 33 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 34
elessair 0:f269e3021894 35 #include "rt_TypeDef.h"
elessair 0:f269e3021894 36 #include "RTX_Conf.h"
elessair 0:f269e3021894 37 #include "rt_Task.h"
elessair 0:f269e3021894 38 #include "rt_Time.h"
elessair 0:f269e3021894 39
elessair 0:f269e3021894 40 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 41 * Global Variables
elessair 0:f269e3021894 42 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 43
elessair 0:f269e3021894 44 /* Free running system tick counter */
elessair 0:f269e3021894 45 U32 os_time;
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47
elessair 0:f269e3021894 48 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 49 * Functions
elessair 0:f269e3021894 50 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 51
elessair 0:f269e3021894 52
elessair 0:f269e3021894 53 /*--------------------------- rt_time_get -----------------------------------*/
elessair 0:f269e3021894 54
elessair 0:f269e3021894 55 U32 rt_time_get (void) {
elessair 0:f269e3021894 56 /* Get system time tick */
elessair 0:f269e3021894 57 return (os_time);
elessair 0:f269e3021894 58 }
elessair 0:f269e3021894 59
elessair 0:f269e3021894 60
elessair 0:f269e3021894 61 /*--------------------------- rt_dly_wait -----------------------------------*/
elessair 0:f269e3021894 62
elessair 0:f269e3021894 63 void rt_dly_wait (U16 delay_time) {
elessair 0:f269e3021894 64 /* Delay task by "delay_time" */
elessair 0:f269e3021894 65 rt_block (delay_time, WAIT_DLY);
elessair 0:f269e3021894 66 }
elessair 0:f269e3021894 67
elessair 0:f269e3021894 68
elessair 0:f269e3021894 69 /*--------------------------- rt_itv_set ------------------------------------*/
elessair 0:f269e3021894 70
elessair 0:f269e3021894 71 void rt_itv_set (U16 interval_time) {
elessair 0:f269e3021894 72 /* Set interval length and define start of first interval */
elessair 0:f269e3021894 73 os_tsk.run->interval_time = interval_time;
elessair 0:f269e3021894 74 os_tsk.run->delta_time = interval_time + (U16)os_time;
elessair 0:f269e3021894 75 }
elessair 0:f269e3021894 76
elessair 0:f269e3021894 77
elessair 0:f269e3021894 78 /*--------------------------- rt_itv_wait -----------------------------------*/
elessair 0:f269e3021894 79
elessair 0:f269e3021894 80 void rt_itv_wait (void) {
elessair 0:f269e3021894 81 /* Wait for interval end and define start of next one */
elessair 0:f269e3021894 82 U16 delta;
elessair 0:f269e3021894 83
elessair 0:f269e3021894 84 delta = os_tsk.run->delta_time - (U16)os_time;
elessair 0:f269e3021894 85 os_tsk.run->delta_time += os_tsk.run->interval_time;
elessair 0:f269e3021894 86 if ((delta & 0x8000) == 0) {
elessair 0:f269e3021894 87 rt_block (delta, WAIT_ITV);
elessair 0:f269e3021894 88 }
elessair 0:f269e3021894 89 }
elessair 0:f269e3021894 90
elessair 0:f269e3021894 91 /*----------------------------------------------------------------------------
elessair 0:f269e3021894 92 * end of file
elessair 0:f269e3021894 93 *---------------------------------------------------------------------------*/
elessair 0:f269e3021894 94