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AN4099 датащи(PDF) 33 Page - STMicroelectronics

номер детали AN4099
подробное описание детали  Implementing transmitters and receivers for infrared remote control protocols using STM32F0xx and STM32F3xx microcontrollers
PDF  39 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4099 датащи(HTML) 33 Page - STMicroelectronics

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AN4099
Interface layer
Doc ID 023110 Rev 2
33/39
4.2
How to customize the IR drivers
4.2.1
IR receiver drivers
To include an infrared decoder driver based on the PWM input solution in a user application,
you must:
1.
Add the header file of the appropriate IR protocol to your project.
Example: rc5_decode.h.
2.
Add the file.c corresponding to the IR protocol to your project.
Example: rc5_decode.c.
3.
Call the function of protocol initiation in the main()
Example: RC5_Init();
4.
Add the TIMx interrupt functions to stm32f0xx_it.c or stm32f3xx_it.c.
Example:
void TIM2_IRQHandler (void)
{
static uint32_t ICValue1;
static uint32_t ICValue2;
/* IC1 Interrupt*/
if((TIM_GetFlagStatus(IR_TIM, TIM_FLAG_CC1) != RESET))
{
TIM_ClearFlag(IR_TIM, TIM_FLAG_CC1);
/* Get the Input Capture value */
ICValue2 = TIM_GetCapture1(IR_TIM);
/* RC5 */
RC5_DataSampling(ICValue2 - ICValue1, 0);
}
/* IC2 Interrupt */
else if((TIM_GetFlagStatus(IR_TIM, TIM_FLAG_CC2) != RESET))
{
TIM_ClearFlag(IR_TIM, TIM_FLAG_CC2);
/* Get the Input Capture value */
ICValue1 = TIM_GetCapture2(IR_TIM);
RC5_DataSampling(ICValue1 , 1);
}
/* Checks whether the IR_TIM flag is set or not.*/
else if ((TIM_GetFlagStatus(IR_TIM, TIM_FLAG_Update) != RESET))
{
/* Clears the IR_TIM's pending flags*/
TIM_ClearFlag(IR_TIM, TIM_FLAG_Update);
RC5_ResetPacket();
}
}



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