AN4099 datasheet(1/39 Pages) 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

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October 2012

Doc ID 023110 Rev 2

1/39

AN4099

Application note

Implementing transmitters and receivers for infrared remote control

protocols using STM32F0xx and STM32F3xx microcontrollers

Introduction

Infrared radiation is the region of the electromagnetic spectrum that lies between

microwaves and visible light.

Infrared radiation has two ranges. Near infrared light is closest in wavelength to visible light

and far infrared is closer to the microwave region of the electromagnetic spectrum.

The shorter waves are the ones used by remote controls. Information is transmitted and

received using electromagnetic energy, without using wires.

Infrared technology offers important advantages as a form of wireless communication.

Nowadays, almost all audio and video equipment can be controlled using an infrared remote

control. At the receiving end, a receiver detects the light pulses, which are processed to

retrieve/decode the information they contain.

There are many popular infrared protocol standards used to transmit data via infrared light,

such as RC5, SIRC...

The purpose of this application note is to provide a generic solution for implementing an IR

transmitter (a remote control device) and receiver in software usingSTM32F0xx and

STM32F3xx microcontrollers. An example of software implementation is provided for RC5

and SIRC protocols. Other protocols are supported and available upon request (for further

information contact your local STMicroelectronics sales office).

Note:

The infrared transmitter and receiver solutions described in this document are implemented

in C language and are available within the STM320518-EVAL(Config2), STM32373C-EVAL

and STM32303C-EVAL Demo package available on http://www.st.com.

Table 1.

Applicable products

Type

Applicable products

Microcontrollers

STM32F0xx

STM32F3xx

www.st.com

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