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AN4099 Datasheet(PDF) 35 Page - STMicroelectronics

Part # AN4099
Description  Implementing transmitters and receivers for infrared remote control protocols using STM32F0xx and STM32F3xx microcontrollers
PDF  39 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4099 Datasheet(HTML) 35 Page - STMicroelectronics

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AN4099
Interface layer
Doc ID 023110 Rev 2
35/39
Note:
IR refers to the name of the IR protocol. For example, SIRC_HEADER_LOW_MIN_US.
–
Change the IR protocol frame field in IR_Frame_TypeDef structure.
typedef struct
{
/* Structure of the IR frame ( Address, Command,....)*/
} IR_Frame_TypeDef;
–
in the sirc_decode.c file, add the appropriate IR_Commands and IR_devices
tables for the IR protocol.
4.2.2
IR transmitter drivers
To include an infrared encoder driver based on the IRTIM solution in a user application you
must:
1.
Add the header file of the appropriate IR protocol to your project.
Example: rc5_encode.h.
2.
Add the file.c corresponding to the IR protocol to your project.
Example: rc5_encode.c.
3.
Call the protocol initiation function in the main()
Example: RC5_Encode_Init();
4.
Add the TIMx interrupt functions to stm32f0xx_it.c or stm32f3xx_it.c.
Example:
void TIM16_IRQHandler(void)
{
RC5_Encode_SignalGenerate(RC5_FrameManchestarFormat);
/* Clear TIM16 update interrupt */
TIM_ClearITPendingBit(TIM16, TIM_IT_Update);
}
IR_VALUE_MARGIN_US
Margin in µs
100
IR_VALUE_00_US
Bit0 duration in µs
1200
Table 6.
List of defines in the header file for the IR protocol parameters
Defines
Meaning
Example settings for
SIRC protocol



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