If you work with embedded systems, understanding the differences between the various technologies and protocols these systems use is important. UART and SPI are important aspects of embedded systems design and development, and understanding the differences between them will help you better understand how the systems that use them work. In this piece, we will explain what UART and SPI are, explain the differences between UART vs SPI, discuss some common applications that use UART and SPI, and provide you with information to help you get started with debugging and programming embedded systems that use UART or SPI.

I have an arm-based embedded controller that I use for thermal control when testing microprocessors. The controller communicates with multiple slave I2C temperature sensors including an I2C temperature sensor interface on our DUT (device under test). I would like to simulate this DUT interface with an Aardvark  I2C/SPI Host Adapter in slave mode.  I’ll be running a loop. I need the slave emulator to provide a different response - different sensor readings - for each loop cycle. How do I make this work?

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I have been using the Komodo CAN Solo Interface with Data Center Software for monitoring the CAN bus.  Can I use the same software to send CAN messages and monitor the CAN bus, or is there another application that I should use for that?

I plan to use the Promira Serial Platform and the API Software with SPI devices. I’ll be sending commands and reading the responses. I have an application in mind, but before I get started, I want to be sure my application will work. Will you please let me know if I am on the right track?

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I am part of an A/V “A-team” that is hired to come in post-production to analyze and troubleshoot video recordings. The market is flooded with camera technology and I find myself working on files captured by any number of devices. I am looking for a protocol analyzer that will support UVC -USB Video Devices Class - v1.0 and v1.1. Will the  Beagle USB 5000 v2 SuperSpeed Protocol Analyzer – Standard Edition work for my needs?

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