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42 lines
994 B
C
42 lines
994 B
C
#include "wm_wdg.h"
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HAL_StatusTypeDef HAL_WDG_Init(WDG_HandleTypeDef *hwdg)
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{
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wm_sys_clk sysclk;
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if (hwdg == NULL)
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{
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return HAL_ERROR;
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}
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assert_param(IS_WDG_ALL_INSTANCE(hwdg->Instance));
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assert_param(IS_WDG_COUNTER(hwdg->Init.Reload));
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HAL_WDG_MspInit(hwdg);
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SystemClock_Get(&sysclk);
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WRITE_REG(hwdg->Instance->LD, (sysclk.apbclk * hwdg->Init.Reload));
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WRITE_REG(hwdg->Instance->CR, 0x03);
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return HAL_OK;
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}
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HAL_StatusTypeDef HAL_WDG_DeInit(WDG_HandleTypeDef *hwdg)
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{
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HAL_NVIC_DisableIRQ(WDG_IRQn);
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WRITE_REG(hwdg->Instance->CR, 0);
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__HAL_WDG_CLEAR_FLAG(hwdg, WDG_CLR);
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return HAL_OK;
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}
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__attribute__((weak)) void HAL_WDG_MspInit(WDG_HandleTypeDef *hwdg)
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{
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UNUSED(hwdg);
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}
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void HAL_WDG_IRQHandler(WDG_HandleTypeDef *hwdg)
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{
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__HAL_WDG_CLEAR_FLAG(hwdg, WDG_CLR); // 如果不清除中断，不会立即复位，在下一个周期中断到来时才复位。
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// 例如定时5s，第一次来中断时没清除，则5s后下一个中断到来才复位
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} |