79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/**
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* @file main.c
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* @brief
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*
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* Copyright (c) 2021 Bouffalolab team
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include "bflb_platform.h"
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#include "hal_wdt.h"
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struct device *wdt_int;
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static uint8_t watchdog_flag = 0;
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void wdt_irq_callback(struct device *dev, void *args, uint32_t size, uint32_t state)
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{
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if (state == WDT_EVENT) {
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watchdog_flag = 1;
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device_control(wdt_int, DEVICE_CTRL_CLR_INT, 0);
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}
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}
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int main(void)
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{
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bflb_platform_init(0);
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uint32_t wdt_cnt = 0;
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wdt_register(WDT_INDEX, "wdt_int");
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wdt_int = device_find("wdt_int");
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if (wdt_int) {
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device_set_callback(wdt_int, wdt_irq_callback);
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device_control(wdt_int, DEVICE_CTRL_SET_INT, NULL);
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device_open(wdt_int, DEVICE_OFLAG_INT_TX); // 6000 counter
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// device_write(wdt_int, 0, (void *)6000, 0);
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} else {
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MSG("wdt device open failed! \r\n");
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}
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while (1) {
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wdt_cnt = device_control(wdt_int, DEVICE_CTRL_GET_WDT_COUNTER, 0);
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MSG("Watchdog counter value=%d \r\n", wdt_cnt);
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if (wdt_cnt > 1000) {
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MSG("Watchdog reset counter \r\n");
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device_control(wdt_int, DEVICE_CTRL_RST_WDT_COUNTER, 0);
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break;
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}
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}
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MSG("Waiting for watchdog interrupt or reset \r\n");
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while (watchdog_flag == 0) {
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MSG("Watchdog counter value=%d \r\n", device_control(wdt_int, DEVICE_CTRL_GET_WDT_COUNTER, 0));
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}
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MSG("Watchdog interrupt arrived \r\n");
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device_close(wdt_int);
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BL_CASE_SUCCESS;
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while (1) {
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}
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}
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