STMicroelectronics AN4099 Infrared Remote Control Application Note

This application note provides a generic solution for implementing an IR transmitter (a remote control device) and receiver in software using a STM32F0xx microcontroller.

Brand: STMicroelectronics
Category: microcontrollers
Document type: Application Note
Language: English
Pages: 36
File format: PDF
File size: 512 KB
Published: 07 August, 2012
Updated: 30 September, 2023
MD5 checksum: C4301B3251C0CADA5F35726D81B0AA45
PDF: STMicroelectronics AN4099 Infrared Remote Control Application Note PDF

About this manual

This document provides a generic solution for implementing infrared (IR) transmitters and receivers in software using STM32F0xx microcontrollers. It covers two popular protocols: RC5 and SIRC. The note details the hardware configuration required, specifically utilizing the IRTIM interface and timers TIM16 and TIM17 on the microcontroller.

What's inside

Infrared protocol specification
RC5 protocol basics
SIRC protocol basics
Infrared transmitter hardware
RC5 encoder solution
SIRC encoder solution
Infrared receiver implementation
RC5 frame decoding
SIRC library usage
Interface layer and demonstration programs

Specifications

RC5 Carrier Frequency	36 kHz
RC5 Bit Length	1.778 ms
SIRC Carrier Frequency	40 kHz
SIRC Word Length	12-bit
SIRC Start Burst Width	2.4 ms
Required Timers	TIM16 and TIM17

Frequently asked questions

Which protocols are supported in this application note?

The document provides software implementation examples for RC5 and SIRC protocols.

What microcontroller series is used for the implementation?

The solutions are implemented using STM32F0xx microcontrollers.

Which timers are used for the IR transmitter interface?

TIM17 provides the carrier frequency and TIM16 provides the main signal.

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