/* * FreeModbus Libary: RT-Thread Port * Copyright (C) 2013 Armink * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * File: $Id: porttimer_m.c,v 1.60 2013/08/13 15:07:05 Armink add Master * Functions$ */ /* ----------------------- Platform includes --------------------------------*/ #include "port.h" /* ----------------------- Modbus includes ----------------------------------*/ #include "mb.h" #include "mb_m.h" #include "mbport.h" #if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0 /* ----------------------- Variables ----------------------------------------*/ static USHORT usT35TimeOut50us; static TimerHandle_t timer = NULL; static void prvvTIMERExpiredISR(void); static void timer_timeout_ind(TimerHandle_t xTimer); static BaseType_t pxHigherPriorityTaskWoken; /* ----------------------- static functions ---------------------------------*/ static void prvvTIMERExpiredISR(void); /* ----------------------- Start implementation -----------------------------*/ BOOL xMBMasterPortTimersInit(USHORT usTimeOut50us) { /* backup T35 ticks */ usT35TimeOut50us = usTimeOut50us; timer = xTimerCreate( "Master timer", (50 * usT35TimeOut50us) / (1000 * 1000 / configTICK_RATE_HZ) + 1, pdFALSE, (void *)1, timer_timeout_ind); if (timer != NULL) { MODBUS_DEBUG(" Create Master Timer Success!\r\n"); return TRUE; } else { MODBUS_DEBUG(" Create Master Timer Faild!\r\n"); return FALSE; } } void vMBMasterPortTimersT35Enable() { // MODBUS_DEBUG("Start master timer!\r\n"); uint32_t timer_tick = (50 * usT35TimeOut50us) / (1000 * 1000 / configTICK_RATE_HZ) + 1; //printf("Set Timre=%d ms\r\n", timer_tick); /* Set current timer mode, don't change it.*/ vMBMasterSetCurTimerMode(MB_TMODE_T35); if (IS_IRQ()) { xTimerChangePeriodFromISR((TimerHandle_t)timer, timer_tick, &pxHigherPriorityTaskWoken); } else { xTimerChangePeriod((TimerHandle_t)timer, timer_tick, 0); } } void vMBMasterPortTimersConvertDelayEnable() { uint32_t timer_tick = MB_MASTER_DELAY_MS_CONVERT * configTICK_RATE_HZ / 1000; //printf("Set Timre=%d ms\r\n", timer_tick); /* Set current timer mode, don't change it.*/ vMBMasterSetCurTimerMode(MB_TMODE_CONVERT_DELAY); if (IS_IRQ()) { xTimerChangePeriodFromISR((TimerHandle_t)timer, timer_tick, &pxHigherPriorityTaskWoken); } else { xTimerChangePeriod((TimerHandle_t)timer, timer_tick, 0); } } void vMBMasterPortTimersRespondTimeoutEnable() { uint32_t timer_tick = MB_MASTER_TIMEOUT_MS_RESPOND * configTICK_RATE_HZ / 1000; //printf("Set %d\r\n", timer_tick); /* Set current timer mode, don't change it.*/ vMBMasterSetCurTimerMode(MB_TMODE_RESPOND_TIMEOUT); if (IS_IRQ()) { xTimerChangePeriodFromISR((TimerHandle_t)timer, timer_tick, &pxHigherPriorityTaskWoken); } else { xTimerChangePeriod((TimerHandle_t)timer, timer_tick, 0); } } void vMBMasterPortTimersDisable() { // MODBUS_DEBUG("Stop master timer!\r\n"); //printf("STop!\r\n"); if (IS_IRQ()) { xTimerStopFromISR((TimerHandle_t)timer, 0); } else { xTimerStop((TimerHandle_t)timer, 0); } } void prvvTIMERExpiredISR(void) { (void)pxMBMasterPortCBTimerExpired(); } static void timer_timeout_ind(xTimerHandle xTimer) { // MODBUS_DEBUG(" Master Timer callback!\r\n"); //printf("%.2f ms\r\n",(float)__HAL_TIM_GetCounter(&htim7)/100.f); prvvTIMERExpiredISR(); } #endif