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Posts Tagged ‘TySOM’

Demystifying AXI Interconnection for Zynq SoC FPGA

Thursday, September 14th, 2017

Imagine traveling back in the time to the early human ages. It’s going to be both scary and interesting when you meet a person who probably cannot speak or if they do you won’t be able to understand them. Clearly, communication will not be possible until you find a mutual way to convey your respective meanings/intentions. The same principle applies in the world of electronics as there are various types of interfaces among electronic devices. Therefore, a standard communication protocol eases the transformation of data in a system, especially in a System-on-Chip (SoC) system which consists of different systems.

SoC FPGAs such as Xilinx® Zynq™ establishes the ARM Advanced Microcontroller Bus Architecture (AMBA) as the on-chip interconnection standard to connect and manage the functional blocks within the SoC design. The Advanced eXtensible Interface (AXI) is designed for FPGAs based on AMBA as a protocol for communication between blocks of IP.

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Introduction to AXI Protocol: Understanding the AXI interface

Wednesday, August 17th, 2016

Introduction-to-AXI-ProtocolToday’s article is authored by Brandon Wade, Aldec FAE Intern. Brandon is currently working on his B.S. in computer engineering from the University of Nevada, Las Vegas and is set to graduate in 2017. His interests include processor architectures, and the logic of these hardware designs. As a field application engineer intern, Brandon has worked extensively with Aldec’s own simulation software such as Active-HDL and Riviera-PRO. 

When part of a team, your group can become more capable than a single individual, but only if your team can work together and communicate effectively. Having members of a group talk over each other leads to nothing but a cacophony, and nothing gets done. For this reason protocols need to be established, such as letting others speak without interruption, or facing those you are addressing. The same is necessary with electronics, especially with system on chip (SoC) designs.

The protocol used by many SoC today is AXI, or Advanced eXtensible Interface, and is part of the ARM Advanced Microcontroller Bus Architecture (AMBA) specification. It is especially prevalent in Xilinx’s Zynq devices, providing the interface between the processing system and programmable logic sections of the chip.

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