drivers/8278/watchdog.c

/******************************************************************************
 * @file     watchdog.c
 *
 * @brief    for TLSR chips
 *
 * @author   public@telink-semi.com;
 * @date     Sep. 30, 2010
 *
 * @attention
 *
 *  Copyright (C) 2019-2020 Telink Semiconductor (Shanghai) Co., Ltd.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *****************************************************************************/

#include "register.h"

/**
 * @brief     This function set the seconds period.It is likely with WD_SetInterval.
 *            Just this function calculate the value to set the register automatically .
 * @param[in] period_s - The seconds to set. unit is second
 * @return    none
 */
void wd_set_interval_ms(unsigned int period_ms,unsigned long int tick_per_ms)
{
    static unsigned short tmp_period_ms = 0;
    tmp_period_ms = (period_ms*tick_per_ms>>18);
    reg_tmr2_tick = 0x00000000;    //reset tick register
    reg_tmr_ctrl &= (~FLD_TMR_WD_CAPT);
    reg_tmr_ctrl |= (tmp_period_ms<<9); //set the capture register
}