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Implementing a multi-peripheral controller using a tiny mixed-signal FPGA

Implementing a multi-peripheral controller using a tiny mixed-signal FPGA

Max Maxfield over at the Embedded.com writes:

As you may recall from previous columns, I tend to think of Silego’s
GPAK chips as being super-small mixed-signal FPGAs that you can
literally design and program in just a few minutes, and that cost only a
few cents each.

Well, the folks at Silego were so excited by the interest my columns generated within the Embedded.com and EETimes.com communities that they decided to offer 25 development kits for free (see Want a free Silego GPAK4 mixed-signal FPGA development kit?).

The idea was that Embedded.com and EETimes.com community members would email me to excite me and delight me with descriptions of the amazing hobby or work projects they might use GPAK4 devices for, thereby convincing me that they deserved to receive one of these little beauties.

Two weeks later, I sauntered into the Pleasure Dome (my office), ensconced myself in my Supreme Commander’s Chair with its super-soft cuddly cushion, and selected the 25 entries that most ignited my imagination and whipped my creative juices into a frenzy (see 25 Free Silego development kits will soon be winging their way).

After this, things went quiet for a while, until earlier today when I heard from one of the lucky recipients, J.R. Stoner, who is principal engineer (and self-described “chief bottle-washer”) at the Bifrost Development Group.

In his email, J.R enclosed the .gp4 (GPAK4) design file associated with his latest project, which is a multi-peripheral controller (click here to download a compressed ZIP file containing the .gp4 design file along with the images presented below). The schematic for the portion of the design featuring the GPAK4 chip (a 20-pin SLG46620 device) is shown below.

More details at Bifrost Development Group and Embedded.com.

Read more Here

 

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