timer2_timer_12t.c 1.1 KB

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  1. // Copyright 2021 IOsetting <iosetting(at)outlook.com>
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the "License");
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. // http://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an "AS IS" BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. // See the License for the specific language governing permissions and
  13. // limitations under the License.
  14. #include "fw_hal.h"
  15. INTERRUPT(Timer2_Routine, EXTI_VectTimer2)
  16. {
  17. UART1_TxString("hello\r\n");
  18. }
  19. void main(void)
  20. {
  21. SYS_SetClock();
  22. // UART1 configuration: baud 115200 with Timer1, 1T mode, no interrupt
  23. UART1_Config8bitUart(UART1_BaudSource_Timer1, HAL_State_ON, 115200);
  24. // 12T mode, prescaler:255+1, frequency: 1, interrupt: ON
  25. TIM_Timer2_Config(HAL_State_OFF, 0xFF, 1);
  26. EXTI_Timer2_SetIntState(HAL_State_ON);
  27. EXTI_Global_SetIntState(HAL_State_ON);
  28. TIM_Timer2_SetRunState(HAL_State_ON);
  29. while(1);
  30. }