fw_wdt.h

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// Copyright 2021 IOsetting <iosetting(at)outlook.com>
//
// 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.
 
#ifndef ___FW_WDT_H___
#define ___FW_WDT_H___
 
#include "fw_conf.h"
#include "fw_types.h"
 
/********************************************************
 * STC8 watchdog behavior is different from STC15
 * 
 * STC8 watchdog will ALWAYS reset chip from ISP code region inspite of the 
 * setting of SWBS in IAP_CONTR
 * 
*/
 
#define WDT_StartWatchDog()         SFR_SET(WDT_CONTR, 5)
#define WDT_ResetCounter()          SFR_SET(WDT_CONTR, 4)
#define WDT_EnableCounterWhenIdle(__STATE__)    SFR_ASSIGN(WDT_CONTR, 3, __STATE__)
#define WDT_SetCounterPrescaler(__PRE_SCALER__) (WDT_CONTR = WDT_CONTR & ~0x07 | (__PRE_SCALER__ & 0x07))
 
#endif