Author Topic: ULX3S A powerful, open hardware ECP5 FPGA dev board  (Read 832 times)

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Online prasimix

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ULX3S A powerful, open hardware ECP5 FPGA dev board
« on: October 23, 2019, 07:06:08 am »


ULX3S is a fully open source, compact, robust, and affordable FPGA dev board equipped with a balanced selection of additional components and expansions. Although it was designed primarily as a teaching tool for mastering the principles of digital circuit design, ULX3S incorporates a wide array of features and interfaces that allow it to serve as a broadly useful module for installation in complex devices.


Coming soon at https://www.crowdsupply.com/radiona/ulx3s

GitHub repo: https://github.com/emard/ulx3s
 
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Online prasimix

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #1 on: March 14, 2020, 07:25:11 pm »
Campaign is live.

Online prasimix

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #2 on: March 14, 2020, 10:20:48 pm »
... and fully funded in first few hours! Congratulations Goran and Radiona team.

Offline goran.mahovlic

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #3 on: March 14, 2020, 10:27:29 pm »
Thank you prasimix for support!

We would never make it without your CS tips and tricks ;)
 
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Online OwO

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #4 on: March 15, 2020, 10:34:08 am »
Quote
Antenna: 27, 88-108, 144, 433 MHz FM/ASK onboard
Where's the antenna? I don't see it anywhere on the board and also don't see any single chip transceivers?
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Online OwO

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #5 on: March 15, 2020, 10:44:22 am »
The 2 micro USB connectors appear to be surface mount only, and not only that, the mechanical pads are only connected to the ground plane by thin traces; that is going to rip from the board after 2 or 3 uses. I would recommend to at least merge the 4 mechanical pads into the ground plane if you can't switch to a through holed connector at this stage. Thermal relief should never be used on mechanical or RF ground pads.
« Last Edit: March 15, 2020, 10:47:03 am by OwO »
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Offline goran.mahovlic

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #6 on: March 15, 2020, 02:47:02 pm »
 

Offline goran.mahovlic

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #7 on: March 15, 2020, 02:50:08 pm »
Tnx on USB suggestions I will send that to author of the board!

We have around 500 boards out and did not noticed any problems!

300 students are already working on this board for a year, and none is broken until now.
 

Offline SiliconWizard

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Re: ULX3S A powerful, open hardware ECP5 FPGA dev board
« Reply #8 on: March 15, 2020, 04:49:17 pm »
The 2 micro USB connectors appear to be surface mount only, and not only that, the mechanical pads are only connected to the ground plane by thin traces; that is going to rip from the board after 2 or 3 uses. I would recommend to at least merge the 4 mechanical pads into the ground plane if you can't switch to a through holed connector at this stage. Thermal relief should never be used on mechanical or RF ground pads.

Agreed.

Apart from that, nice job.
 
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