Monthly Archives: March 2016

Serial ports were used in a verity of applications reliably for a very long time now. Although PCs and Laptops don’t come with built in serial ports anymore, serial port interface emulated over USB is very popular among DIYers/hackers and with certain products. USB specification defines a class (Communication Devices Class) for using USB transport […]

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Some readers may remember, we attempted to design a Spartan 6 based FPGA development board with DDR SDRAM almost a year ago. The board worked to the most part except that some obvious mistakes made it impossible to get the DDR up running. We did another attempt this year to design a new board with […]

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Introduction Designing and building a FPGA development board that has two BGA devices was challenging enough. But what came next did seem equally challenging to us in the beginning. That challenge was testing the functionality of DDR interface. We had no prior experience of successfully building a board with a DDR device. And those who […]

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