66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
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// Copyright 2021 IOsetting <iosetting(at)outlook.com>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/***
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* Demo: Watchdog Clear And Reset
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*/
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#include "fw_hal.h"
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static uint8_t c0 = 0, c1 = 0;
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INTERRUPT(Timer0_Routine, EXTI_VectTimer0)
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{
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c0++;
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if (c0 == 100)
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{
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c0 = 0;
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c1++;
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if (c1 < 5)
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{
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UART1_TxString("Round ");
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UART1_TxHex(c1);
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UART1_TxString(", reset watchdog counter\r\n");
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WDT_ResetCounter();
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}
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else
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{
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UART1_TxString("Round ");
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UART1_TxHex(c1);
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UART1_TxString(", no operation\r\n");
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}
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}
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}
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int main(void)
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{
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uint8_t count = 9;
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SYS_SetClock();
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UART1_Config8bitUart(UART1_BaudSource_Timer2, HAL_State_ON, 115200);
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UART1_TxString("Watchdog test restarted\r\n");
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// Timer0: 12T mode, frequency 100Hz
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TIM_Timer0_Config(HAL_State_OFF, TIM_TimerMode_16BitAuto, 100);
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EXTI_Timer0_SetIntState(HAL_State_ON);
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EXTI_Timer0_SetIntPriority(EXTI_IntPriority_High);
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EXTI_Global_SetIntState(HAL_State_ON);
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TIM_Timer0_SetRunState(HAL_State_ON);
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UART1_TxString("Timer 0 started\r\n");
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/**
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* Set countdown time to around 3 seconds(FOSC = 36.864MHz)
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*/
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WDT_SetCounterPrescaler(0x07);
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WDT_StartWatchDog();
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while(1);
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}
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