Blogs - Embedded Software

May 6, 2024

An Overview of UVC and UAC class and USB Video Conferencing Device with Aikri-QCS610 Platform

Universal Serial Bus popularly known as USB is a Plug and Play interface used for computers to communicate with diverse types of USB peripherals. Keyboards, Mouses, Joysticks, Speakers, Webcams, External Drives are common USB devices. The underlying mechanisms for each of these devices are different. Some of them are mass storage devices, video devices, audio devices while others are human interface devices. UVC stands for USB Video Class and can transmit video over USB, similarly UAC stands for USB Audio Class and can transmit audio over USB. When user plugs a UVC/UAC device to the host, configuration, and enumeration of UVC/UAC device at host will be completed and its capabilities advertised to the host. USB Camera and USB Headset is an example of UVC and UAC Device, respectively.

February 12, 2024

Cache coherency- Risks and Resolution in case of Direct Memory Access (DMA)

Cache coherence maintains consistency between cached data copies when multiple devices access shared memory. This blog explores the need for cache coherency, coherence protocols like snooping, and fixing incoherence issues in multicore systems like ensuring descriptor writebacks for proper DMA transfers with EMAC.

March 20, 2023

Digitizing Supply Chains: How Mobile Solutions Drive Efficiency and Revenue

The logistics and supply chain industries are increasingly using digital mobility solutions to streamline operations, gain real-time data insights, and reduce environmental impact. By optimizing inventory management systems, businesses can achieve faster delivery times, reach customers more efficiently, reduce lead times, minimize errors, and better manage inventory.

January 16, 2023

Understanding Risks in Over the Air Firmware Upgrade for Automotives Including EVs

Nowadays, every car equipped with an infotainment system is required to upgrade its firmware to stay bug-free and feature-rich. Due to advancements in automotive industries, especially in EVs, firmware upgrades are possible over the air. However, providing such features over the air may expose an automotive’s end infotainment clusters and electronic components to various kinds of threats.

December 16, 2022

Dive into Smart World with i.MX9 Processor

To achieve the goal of 50 billion connected devices by 2025, we need a strong infrastructure with the right balance of technologies to provide a distinctive and productive experience for customers. The end user could be an individual or a system, such as a smart home management system that improves the security, energy efficiency, and productivity of an entire system.

May 18, 2022

Understanding Alexa Skills and its Integration with Home Appliances

In recent times, millions of devices are now Alexa enabled, and many embedded devices are

February 21, 2022

Trends in WiFi Standards and Wireless Technology

WiFi Standards The first WiFi standard was defined in 1997 and is obsolete. There will

January 25, 2022

Understanding the Dolby Digital Decoder (AC3) Technology

The Audio Encoders and Decoders are basically compression algorithms for multichannel audio, meant for storing/streaming music and the audio part of movies, with lesser storage place/bandwidth than the original content. Dolby Digital Decoder is one such algorithm developed by Dolby Digital Laboratories. The Encoders are almost, always used at the recording end in the studios, where the sound/music is created, to encode/compress the sound. The Decoders are generally present at the infotainment end, like home theater systems and car infotainment systems. The article here, describes the basic building blocks of the Dolby Digital (AC3) Decoder algorithm.

October 22, 2021

Real-Time Advanced Debugging using Code Composer Studio

Texas Instrument processors are used across the globe. Equally active are its debuggers. Therefore, using Code Composer Studio and implementing a suitable debugging technique might help you save your debugging time.


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