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Latest Threads
AU - DDR3 PIn use
Forum: General Questions
Last Post: TechPaula
05-09-2021, 08:10 PM
» Replies: 0
» Views: 69
Alchitry Labs not playing...
Forum: General Questions
Last Post: Tyrving
04-03-2021, 11:11 PM
» Replies: 0
» Views: 277
Alchitry-Cu first tutori...
Forum: General Questions
Last Post: wing
03-25-2021, 12:33 PM
» Replies: 2
» Views: 359
Which Ubuntu and JRE vers...
Forum: General Questions
Last Post: wing
03-24-2021, 05:51 PM
» Replies: 0
» Views: 251
FT2232HQ Configuration (A...
Forum: General Questions
Last Post: Rory
03-21-2021, 05:59 AM
» Replies: 1
» Views: 394
DRIVE strength and SLEW r...
Forum: General Questions
Last Post: Rory
03-21-2021, 05:17 AM
» Replies: 0
» Views: 180
Mojo v3 HDMI SHield Eagle...
Forum: General Questions
Last Post: Helder
03-18-2021, 01:32 PM
» Replies: 2
» Views: 463
Thermal issues? + More
Forum: General Questions
Last Post: Tyrving
02-20-2021, 07:52 PM
» Replies: 2
» Views: 442
Mojo V3 Lucid Sdram Test ...
Forum: General Questions
Last Post: tistructor
02-17-2021, 07:37 PM
» Replies: 1
» Views: 328
7 Seg Display Letters?
Forum: General Questions
Last Post: alchitry
02-16-2021, 03:34 PM
» Replies: 1
» Views: 377

 
  AU - DDR3 PIn use
Posted by: TechPaula - 05-09-2021, 08:10 PM - Forum: General Questions - No Replies

I'm having some problems running the "memory interface generator" in vivado.
I'm trying to configure the DDR3 basic on the schematic and XDC files, however I get an error;

Code:
ERROR : The port ddr3_addr[5] is allocated in the bank 15 where the input ports are allocated. Enable the Internal Vref to use the Vref as GPIO.

now I believe, I need these lines;
Code:
set_property INTERNAL_VREF 0.7 [get_iobanks 65]
set_property INTERNAL_VREF 0.84 [get_iobanks 67]
but with those in the projects XDC file and with the project built, I still get the error.

I've tried this thread - https://forum.alchitry.com/thread-234.html
But sadly the project that is created is blank and has no mig_7series_0 module.

Could you explain how to configure this to work please?


  Alchitry Labs not playing nicely with Vivado
Posted by: Tyrving - 04-03-2021, 11:11 PM - Forum: General Questions - No Replies

Hello! Loving my AU, but I've been having some issues. When I first tried using Alchitry Labs, it wouldn't get past "Starting Vivado..."
I decided to just learn verilog, and use plain ol Vivado with the loader, which works fine. However, now that I find myself wanting to do more with complex AU features, like the IO module 7-segs and RAM. I dont want to design my own memory controller, and verilog has been pretty confusing - two problems I can solve via Alchitry Labs with lucid. I ported the I/O files into Vivado from Labs for the buttons/DIP row/LED row, which has been enough for my projects until now. I did some investigation through task manager, and it seems that Labs will spawn a Vivado process, which will start eating up one of my processor threads, until after a few minutes, then it will disappear. Upon cancelling the build, Labs reports there is no .bin file found in the destination directory - '\working\dir\.runs\impl_1\au_top_0.bin) could not be found! The build probably failed.' I am using Labs 1.2.6, and Vivado 2020.2. I have validated my Vivado files through help -> add design tools or devices. I have been troubleshooting with the led to button sample project. Running Windows 10.

Any help would be appreciated.

P.S. I found alchity2.com, and I gotta complement the UI design, except for the miniscule drop-down menus.


  Which Ubuntu and JRE version should I use to install Alchitry-lab ??
Posted by: wing - 03-24-2021, 05:51 PM - Forum: General Questions - No Replies

Hi,
  Anyone successfully install and run Alchitry-labs on Ubuntu?
I just try Ubunut 18.04, and oracle-jre 1.8.0_281,

but fail  it give that error
"Exception in thread "Thread-9" java.lang.NoSuchMethodError: java.nio.CharBuffer.flip()Ljava/nio/CharBuffer;
    at com.alchitry.labs.Util$startStreamPrinter$printer$1.run(Util.kt:501)
Exception in thread "Thread-10" java.lang.NoSuchMethodError: java.nio.CharBuffer.flip()Ljava/nio/CharBuffer;
    at com.alchitry.labs.Util$startStreamPrinter$printer$1.run(Util.kt:501)


"


Sad Alchitry-Cu first tutorial not work!
Posted by: wing - 03-21-2021, 05:09 PM - Forum: General Questions - Replies (2)

I follow the tutorial  https://alchitry.com/blogs/tutorials/you...ga-project
to test on my Cu board
and 
1. Windows 10
2. Alchitry Labs version 1.2.5
3. iCEcube2 version 2017.08

but it give the following error

Staring iceCube2...
Bin file (D:\workspace_alchitry\LEDtoButton\work\alchitry_imp\sbt\outputs\bitmap\cu_top_0_bitmap.bin) could not be found! The build probably failed.

Any suggestions ?

Thanks


  DRIVE strength and SLEW rate in Alchitry Labs
Posted by: Rory - 03-21-2021, 05:17 AM - Forum: General Questions - No Replies

Hi,
With the Mojo v3 in the old IDE, you could adjust the pin IO standard, pullup/down resistors, slew rate, and drive strength in the .ucf file as shown here.

In Alchitry Labs, you edit a .acf file, but the only allowed keyword is "pullup" or "pulldown". How do I change the DRIVE strength parameter in Alchitry Labs? 
The relevant Xilinx 7-series SelectIO document is here on page 48.

Thanks.


  FT2232HQ Configuration (Alchitry Au)
Posted by: sabquat - 02-24-2021, 07:52 AM - Forum: General Questions - Replies (1)

Hello,
It looks like the FT2232HQ chip can be configured either as a full-duplex or as a half-duplex.
Is it possible to inform the actual configuration of the FT2232HQ chip on Alchitry Au? Is it configured as a full-duplex or as a half-duplex?


Video Mojo V3 Lucid Sdram Test Wrong
Posted by: tistructor - 02-17-2021, 02:35 PM - Forum: General Questions - Replies (1)

I made the shield to test the sdram, I used the same components used to build the original.

Then I ran the SDram test in Lucid and I continue to detect output errors shown by the configuration of the LEDs on the board: LEDs 6: 0 on and 7 flashing.

So I tried to use the example in verilog under ise project navigator and with the latter the test works, 7 LEDs off and one flashing.

There must be some problem with the lucid project but I couldn't identify it.

Can someone try to do the sdram test on mojo V3 with Lucid
to identify the problem?

Thank you

[Image: ynLFrQ0]


  7 Seg Display Letters?
Posted by: CH3NO2 - 02-14-2021, 10:48 PM - Forum: General Questions - Replies (1)

Hello, is it possible to make the 7 segment display on the IO element shield display letters? Obviously not all letters are possible by the 7 segment design, but those that are, is that possible?

If so, how would I go about learning to do this? It would be especially useful for one of my projects.

Thank you


  Alchitry Cu Doesn't work with latest ICE2
Posted by: sponaugle - 02-12-2021, 03:42 AM - Forum: General Questions - No Replies

It would appear the latest version (December 2020) of the Lattice iCEcube2 does not work with the Alchitry Labs application.    Lattice removed the Active-HDL component, and I perhaps a few other changes.

The new version:  
https://www.latticesemi.com/Products/Des...S/iCEcube2

You can download the previous version (2017) from the archive section:

https://www.latticesemi.com/support/softwarearchive

I'm guessing this is a known problem, but it isn't mentioned on the install page.

"iCEcube2 Version 2020.12

  • Replaced Aldec™ Active-HDL™ with Mentor® ModelSim® Lattice FPGA Edition. Active-HDL Lattice Edition is still supported but not included."


Jeff Sponaugle


  Alchitry Labs not recognizing Alchitry-Au
Posted by: prebys - 02-11-2021, 02:36 AM - Forum: General Questions - Replies (2)

I'm using these boards in a class.  Students either run the software on their own Windows 10 machines, on W10 VMs on their Macs, or use remote computing and a local downloader.

For one of the students with his own Windows machine, the download step  hangs.  It doesn't say "No device found".  The log window is just blank.  If he tries the standalone downloader, it just permanently hangs.

Looking at the device manager, it sees two devices called "Alchitry-Au", while my working system sees the board as an unnamed "USB Port".

We tried to uninstall or disable those devices, but it still doesn't work.

Any advice would be appreciated.