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AN4099 датащи(PDF) 31 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

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AN4099
Interface layer
Doc ID 023110 Rev 2
31/39
4
Interface layer
Figure 23.
Application layer architecture
There are many similar infrared protocols that are differentiated by timing parameters such
as the SIRC protocol. These protocols are handled by sirc_decode.c/sirc_encode.c
functions. You only need to update the timing values.
There are others that are quite different and are managed by specific functions such as RC5
and its associated driver rc5_decode.c/rc5_encode.c.
Each protocol has a specific structure frame. IR_FRAME is a pointer to the selected infrared
protocol structure and it contains the main information needed for communication (device
address and command).
4.1
Demonstration programs
To ensure a quick start, the infrared transmitter and receiver presented in this document are
implemented in C language and are available within the STM320518-EVAL(Config2),
STM32373C-EVAL and STM32303C-EVAL Demo package.
4.1.1
Transmitter demonstration using IRTIM
This demonstration consists in transmitting IR messages displayed on an LCD.
Each IR message is displayed in two parts.
The IR device receiver.
The command to be executed.



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