Hi to all, For long time we are working on ULX3S FPGA board. http://radiona.org/ulx3s/ And a few days ago we got Oberon on ULX3S https://twitter.com/GMahovlic/status/1122089514070171648 Most of the work was done before by Valentin Angelovskifor his fleaFPGA board! EMARD just adjusted few things needed for Oberon to work on our board... EMARD is still trying to get keyboard and mouse working... We are currently in process of ordering next batch of boards so if there is interest just drop me a mail to ulx3s.fpga@gmail.com Radiona is just producing 85F boards with 64Mb SDRAM and ESP32 onboard. But Oberon works on 12F boards that we have available almost all the time. And for the last I have submitted this board to hackady prize so if you are there give us a like. We are currently at 3. place! https://hackaday.io/project/159108-ulx3s-powerful-ecp5-board-for-open-source... Goran, Radiona
Goran: this is great. I voted for your board on Hackaday. Thank you for posting! Looking at the board I can see an HDMI connector, but it is labeled GPDI. Could you briefly explain how is GPDI different from HDMI and why? Google did not help. I also wonder why you chose to use SDRAM rather than the more modern DDRx. Do you have an idea of non-determinism incurred on the Oberon System by the cache which is necessary when using any kind of SDRAM? Deterministic response was my motivation for using ZBT with the RiskFive project. The price for determinism was a relatively small size of the RAM (only 4 MB) and substantial cost (about $12 per megabyte). The performance is superb, but the cost is high and the capacity is low. I was always tempted to make an SDRAM board and always repelled by the firmware effort. It is great that you are covering this area. The FPGA versions of System 3 or Linz V4 now both become feasible. Thank you, Wojtek ________________________________________ From: Oberon [oberon-bounces@lists.inf.ethz.ch] on behalf of Goran Mahovlić [goran.mahovlic@gmail.com] Sent: Sunday, April 28, 2019 11:40 AM To: oberon@lists.inf.ethz.ch Subject: [Oberon] Oberon on ULX3S For long time we are working on ULX3S FPGA board. http://radiona.org/ulx3s/ And a few days ago we got Oberon on ULX3S https://twitter.com/GMahovlic/status/1122089514070171648 Most of the work was done before by Valentin Angelovski for his fleaFPGA board! EMARD just adjusted few things needed for Oberon to work on our board... EMARD is still trying to get keyboard and mouse working... We are currently in process of ordering next batch of boards so if there is interest just drop me a mail to ulx3s.fpga@gmail.com Radiona is just producing 85F boards with 64Mb SDRAM and ESP32 onboard. But Oberon works on 12F boards that we have available almost all the time. And for the last I have submitted this board to hackady prize so if you are there give us a like. We are currently at 3. place! https://hackaday.io/project/159108-ulx3s-powerful-ecp5-board-for-open-source... Goran, Radiona
Thanks for the votes! Really sorry did not have time for answers.... To answer some question: HDMI is proprietary so we cannot call it like that. If you connect our GPDI to HDMI monitor you will get picture ;) Here is author EMARD talking about board and he noted this... https://hackaday.io/project/159108-ulx3s-powerful-ecp5-board-for-open-source... EMARD chose SDRAM because it was already supported on lots of retro consoles, and at the time of creating board there was not open source DDR3 driver, so it would be hard to start with the board. And it would be really hard to rewrite all nice stuff already existing. I do not think EMARD needed to change something with cache, all hard work was done by Valentin Angelovski. 12F and 85F is size FPGA it is 12K(actually this can be 24) and 84K of LUT Price is mostly defined by batch size and FPGA we put on board. We currently doing only small batches so: Current price for 12F with 32Mb of SDRAM is 75Eur + shipping Planned price for 85F with ESP32 and 64Mb of SDRAM will be around 120Eur And hope price will drop on each batch (on starting batches there is many things that could go wrong so we need to calculate on that). At some point we could do low price version without without features we are offering (RTC, ADC, ESP32) But so far no one wants that cutout versions :) Regards, Goran On Sun, Apr 28, 2019 at 5:40 PM Goran Mahovlić <goran.mahovlic@gmail.com> wrote:
Hi to all,
For long time we are working on ULX3S FPGA board. http://radiona.org/ulx3s/
And a few days ago we got Oberon on ULX3S https://twitter.com/GMahovlic/status/1122089514070171648
Most of the work was done before by Valentin Angelovskifor his fleaFPGA board!
EMARD just adjusted few things needed for Oberon to work on our board... EMARD is still trying to get keyboard and mouse working...
We are currently in process of ordering next batch of boards so if there is interest just drop me a mail to ulx3s.fpga@gmail.com
Radiona is just producing 85F boards with 64Mb SDRAM and ESP32 onboard.
But Oberon works on 12F boards that we have available almost all the time.
And for the last I have submitted this board to hackady prize so if you are there give us a like.
We are currently at 3. place!
https://hackaday.io/project/159108-ulx3s-powerful-ecp5-board-for-open-source...
Goran, Radiona
participants (2)
-
Goran Mahovlić -
Skulski, Wojciech