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- // Copyright 2021 IOsetting <iosetting(at)outlook.com>
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- #include "fw_hal.h"
- static uint8_t counter = 0;
- INTERRUPT(Timer2_Routine, EXTI_VectTimer2)
- {
- counter++;
- if (counter == 5)
- {
- counter = 0;
- UART1_TxString("hello\r\n");
- }
- }
- void main(void)
- {
- SYS_SetClock();
- // UART1 configuration: baud 115200 with Timer1, 1T mode, no interrupt
- UART1_Config8bitUart(UART1_BaudSource_Timer1, HAL_State_ON, 115200);
- // 1T mode, prescaler:255+1, frequency: 5, interrupt: ON
- TIM_Timer2_Config(HAL_State_ON, 0xFF, 5);
- EXTI_Timer2_SetIntState(HAL_State_ON);
- EXTI_Global_SetIntState(HAL_State_ON);
- TIM_Timer2_SetRunState(HAL_State_ON);
- while(1);
- }
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