93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
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* FreeModbus Libary: BARE Port
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* Copyright (C) 2006 Christian Walter <wolti@sil.at>
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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: $Id$
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*/
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/* ----------------------- Platform includes --------------------------------*/
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#include "mod_port.h"
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#include "mcu_init.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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void prvvTIMERExpiredISR( void );
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extern TIM_HandleTypeDef htim6;
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/* ----------------------- Start implementation -----------------------------*/
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BOOL
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xMBPortTimersInit( USHORT usTim1Timerout50us )
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{
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HAL_TIM_Base_DeInit(&htim6);
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TIM_MasterConfigTypeDef sMasterConfig = {0};
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/* USER CODE BEGIN TIM6_Init 1 */
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/* USER CODE END TIM6_Init 1 */
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htim6.Instance = TIM6;
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htim6.Init.Prescaler = 4499;
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htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
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htim6.Init.Period = usTim1Timerout50us-1;
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htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
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if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
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{
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return FALSE;
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}
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sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
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sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
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if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK)
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{
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return FALSE;
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}
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return TRUE;
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}
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inline void
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vMBPortTimersEnable( )
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{
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/* Enable the timer with the timeout passed to xMBPortTimersInit( ) */
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__HAL_TIM_CLEAR_IT(&htim6,TIM_IT_UPDATE);
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__HAL_TIM_SetCounter(&htim6,0);
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HAL_TIM_Base_Start_IT(&htim6);
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}
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inline void
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vMBPortTimersDisable( )
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{
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/* Disable any pending timers. */
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HAL_TIM_Base_Stop_IT(&htim6);
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__HAL_TIM_SetCounter(&htim6,0);
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__HAL_TIM_CLEAR_IT(&htim6,TIM_IT_UPDATE);
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}
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/* Create an ISR which is called whenever the timer has expired. This function
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* must then call pxMBPortCBTimerExpired( ) to notify the protocol stack that
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* the timer has expired.
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*/
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void prvvTIMERExpiredISR( void )
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{
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( void )pxMBPortCBTimerExpired( );
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}
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