81 lines
1.4 KiB
C
81 lines
1.4 KiB
C
/*
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* Copyright 2022 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 "board_init.h"
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/*
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* Macros.
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*/
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/*
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* Variables.
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*/
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/*
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* Declerations.
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*/
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void app_iwdg_init(void);
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void app_soft_delay(uint32_t delay);
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/*
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* Functions.
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*/
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int main(void)
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{
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uint32_t i = 0;
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BOARD_Init();
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printf("iwdg_basic example.\r\n");
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app_iwdg_init();
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for(i = 0; i < 10; i++)
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{
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/* Reload the IWDG counter. */
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IWDG_DoReload(BOARD_IWDG_PORT);
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printf("Feed dog count: %u\r\n", (unsigned)(i+1) );
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app_soft_delay(200);
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}
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/* Waiting for MCU reset. */
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while(1)
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{
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}
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}
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void app_iwdg_init(void)
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{
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/* Setup the IWDG parameters. */
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IWDG_Init_Type iwdg_init;
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iwdg_init.Prescaler = BOARD_IWDG_PRESCALER;
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iwdg_init.Relaod = BOARD_IWDG_RELOAD;
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/* Waiting for reload and prescaler status flags to be cleard. */
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while( 0u != ( (IWDG_STATUS_RELOAD_UPDATE | IWDG_STATUS_PRESCALER_UPDATE) & IWDG_GetStatus(BOARD_IWDG_PORT) ) )
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{
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}
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/* Initialize the IWDG. */
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IWDG_Init(BOARD_IWDG_PORT, &iwdg_init);
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/* Start the IWDG counter. */
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IWDG_Start(BOARD_IWDG_PORT);
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}
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void app_soft_delay(uint32_t delay)
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{
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for(uint32_t i = 0; i < delay; i++)
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{
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for(uint32_t j = 0; j < 10000; j++)
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{
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__NOP();
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}
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}
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}
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/* EOF. */
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