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https://gitee.com/Lyon1998/pikapython.git
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59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
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/*
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* Copyright 2021 MindMotion Microelectronics Co., Ltd.
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "hal_iwdg.h"
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void IWDG_Init(IWDG_Type * IWDGx, IWDG_Init_Type * init)
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{
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if ( NULL != init )
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{
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IWDGx->KR = IWDG_KEY_UNLOCK;
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IWDGx->PR = init->Prescaler;
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IWDGx->KR = IWDG_KEY_UNLOCK;
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IWDGx->RLR = init->Relaod;
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IWDG_DoReload(IWDGx);
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}
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}
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void IWDG_Start(IWDG_Type * IWDGx)
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{
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IWDGx->KR = IWDG_KEY_ENABLE;
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}
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uint32_t IWDG_GetStatus(IWDG_Type * IWDGx)
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{
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return IWDGx->SR;
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}
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void IWDG_DoReload(IWDG_Type * IWDGx)
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{
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IWDGx->KR = IWDG_KEY_RELOAD;
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}
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void IWDG_EnableInterrupts(IWDG_Type * IWDGx, uint32_t interrupts, bool enable)
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{
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if( (true == enable ) && (IWDG_INT_ALMOST_TIMEOUT == interrupts) )
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{
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IWDGx->CR |= IWDG_CR_IRQSEL_MASK;
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}
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else
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{
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/* if IWDG_EnableInterrupts interrupt was enabled, only MCU reset can close it. */
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}
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}
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void IWDG_ClearStatus(IWDG_Type * IWDGx, uint32_t status)
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{
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if( 0u != ( status & IWDG_CR_IRQCLR_MASK ) )
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{
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IWDGx->CR |= IWDG_CR_IRQCLR_MASK;
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}
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}
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/* EOF. */
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