mirror of
https://github.com/silenty4ng/uv-k5-firmware-chinese-lts
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85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
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/*----------------------------------------------------------------------------
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* CMSIS-RTOS - RTX
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*----------------------------------------------------------------------------
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* Name: RT_TIME.C
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* Purpose: Delay and interval wait functions
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* Rev.: V4.79
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*----------------------------------------------------------------------------
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*
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* Copyright (c) 1999-2009 KEIL, 2009-2017 ARM Germany GmbH. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*---------------------------------------------------------------------------*/
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#include "rt_TypeDef.h"
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#include "RTX_Config.h"
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#include "rt_Task.h"
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#include "rt_Time.h"
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/*----------------------------------------------------------------------------
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* Global Variables
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*---------------------------------------------------------------------------*/
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/* Free running system tick counter */
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U32 os_time;
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/*----------------------------------------------------------------------------
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* Functions
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*---------------------------------------------------------------------------*/
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/*--------------------------- rt_time_get -----------------------------------*/
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U32 rt_time_get (void) {
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/* Get system time tick */
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return (os_time);
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}
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/*--------------------------- rt_dly_wait -----------------------------------*/
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void rt_dly_wait (U16 delay_time) {
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/* Delay task by "delay_time" */
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rt_block (delay_time, WAIT_DLY);
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}
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/*--------------------------- rt_itv_set ------------------------------------*/
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void rt_itv_set (U16 interval_time) {
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/* Set interval length and define start of first interval */
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os_tsk.run->interval_time = interval_time;
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os_tsk.run->delta_time = interval_time + (U16)os_time;
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}
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/*--------------------------- rt_itv_wait -----------------------------------*/
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void rt_itv_wait (void) {
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/* Wait for interval end and define start of next one */
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U16 delta;
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delta = os_tsk.run->delta_time - (U16)os_time;
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os_tsk.run->delta_time += os_tsk.run->interval_time;
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if ((delta & 0x8000U) == 0U) {
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rt_block (delta, WAIT_ITV);
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}
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}
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/*----------------------------------------------------------------------------
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* end of file
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*---------------------------------------------------------------------------*/
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