67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
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/*
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* FreeModbus Libary: RT-Thread Port
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* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* File: $Id: porttimer.c,v 1.60 2013/08/13 15:07:05 Armink $
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*/
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/* ----------------------- Platform includes --------------------------------*/
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#include "port.h"
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/* ----------------------- Modbus includes ----------------------------------*/
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#include "mb.h"
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#include "mbport.h"
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/* ----------------------- static functions ---------------------------------*/
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static TimerHandle_t timer;
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static void prvvTIMERExpiredISR(void);
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static void timer_timeout_ind();
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/* ----------------------- Start implementation -----------------------------*/
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BOOL xMBPortTimersInit(USHORT usTim1Timerout50us) {
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/*
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Freertos can't create timer in isr!
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So,I use hardware timer here! ！Freq=1Mhz
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*/
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timer = xTimerCreate(
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"Slave timer",
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(50 * usTim1Timerout50us) / (1000 * 1000 / configTICK_RATE_HZ) + 1,
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pdFALSE, (void *)2, timer_timeout_ind);
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if (timer != NULL)
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return TRUE;
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}
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void vMBPortTimersEnable() {
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if (IS_IRQ()) {
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xTimerStartFromISR((TimerHandle_t)timer, 0);
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} else {
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xTimerStart((TimerHandle_t)timer, 0);
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}
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}
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void vMBPortTimersDisable() {
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if (IS_IRQ()) {
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xTimerStopFromISR((TimerHandle_t)timer, 0);
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} else {
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xTimerStop((TimerHandle_t)timer, 0);
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}
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}
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void prvvTIMERExpiredISR(void) { (void)pxMBPortCBTimerExpired(); }
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static void timer_timeout_ind() {
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prvvTIMERExpiredISR();
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}
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