/**************************************************************************//**
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* @file pan_hal_wwdt.c
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* @version V0.0.0
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* $Revision: 1 $
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* $Date: 23/09/10 $
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* @brief Panchip series WWDT (Windowed Watchdog Timer) HAL source file.
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* @note
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* Copyright (C) 2023 Panchip Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "pan_hal.h"
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WWDT_CallbackFunc wwdt_callback[1];
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void HAL_WWDT_Init(WWDT_Init_Opt *wwdt){
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// Unlock Regs
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SYS_UnlockReg();
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CLK_APB1PeriphClockCmd(CLK_APB1Periph_WWDT, ENABLE);
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// Select Clock Source
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CLK_SetWwdtClkSrc(wwdt->ClockSource);
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// Delay some nops before Re-lock Regs
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SYS_delay_10nop(1);
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// Enable WWDT, disable Int
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WWDT_Open(wwdt->Prescaler, wwdt->CmpValue, FALSE);
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// Re-Lock Regs
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SYS_LockReg();
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}
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void HAL_WWDT_DeInit(void){
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SYS_UnlockReg();
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WWDT_Close();
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CLK_APB1PeriphClockCmd(CLK_APB1Periph_WWDT, DISABLE);
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SYS_LockReg();
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}
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void HAL_WWDT_Feed(WWDT_Init_Opt *wwdt){
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WWDT_ReloadCounter();
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}
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void HAL_WWDT_Init_INT(WWDT_Interrupt_Opt *wwdt){
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wwdt_callback[0] = wwdt->CallbackFunc;
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SYS_UnlockReg();
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WWDT->CTL |= WWDT_CTL_INTEN_Msk;
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// Enable NVIC WWDT IRQ
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NVIC_EnableIRQ(WWDT_IRQn);
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SYS_LockReg();
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}
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void HAL_WWDT_DeInit_INT(void){
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wwdt_callback[0] = NULL;
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WWDT->CTL &= ~WWDT_CTL_INTEN_Msk;
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// Disable NVIC WWDT IRQ, thus WWDT will stop reloading counter
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NVIC_DisableIRQ(WWDT_IRQn);
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}
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void WWDT_IRQHandler(void)
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{
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// Clear Timeout Int Flag
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WWDT_ClearIntFlag();
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if (wwdt_callback[0] != NULL)
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wwdt_callback[0]();
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}
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