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Could not detect an Au!
Forum: General Questions
Last Post: satheesh_s
07-23-2021, 01:51 AM
» Replies: 6
» Views: 2,077
LEDs on Io Breakout Board...
Forum: Tips and Tricks
Last Post: alchitry
07-22-2021, 02:35 PM
» Replies: 2
» Views: 157
Alchitry labs crashes Moj...
Forum: General Questions
Last Post: alchitry
07-22-2021, 02:33 PM
» Replies: 1
» Views: 546
DDR3 speed in example
Forum: General Questions
Last Post: alchitry
07-22-2021, 02:31 PM
» Replies: 3
» Views: 1,108
Question Shield Mojo to A...
Forum: General Questions
Last Post: alchitry
07-22-2021, 02:29 PM
» Replies: 5
» Views: 1,588
DDR3 speed of READ comman...
Forum: General Questions
Last Post: alchitry
07-22-2021, 02:27 PM
» Replies: 1
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Alchitry Loader - Could n...
Forum: General Questions
Last Post: alchitry
07-22-2021, 02:19 PM
» Replies: 2
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Constraints files
Forum: General Questions
Last Post: TechPaula
07-18-2021, 01:01 PM
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» Views: 865
Au plus and DDR3 Tutorial
Forum: General Questions
Last Post: howdyrichard
07-07-2021, 05:55 PM
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bin_to_dec
Forum: General Questions
Last Post: D22
07-04-2021, 04:57 PM
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» Views: 59

 
  Which Ubuntu and JRE version should I use to install Alchitry-lab ??
Posted by: wing - 03-24-2021, 05:51 PM - Forum: General Questions - Replies (2)

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 (7)

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.


  Bin file could not be found - Building project fails
Posted by: kobusswart - 03-18-2021, 02:32 PM - Forum: General Questions - Replies (2)

Hey,

New install of Alchitry LABS 1.2.5 using iCeCube2 Tool Chain with the Alchitry Cu board trying to build and deploy LEDtoButton example.

When I try to build the project I get the following log output:

Starting iceCube2...

Bin file (C:\tools\FPGA\Lattice\Alchitry\LEDtoButton\work\alchitry_imp\sbt\outputs\bitmap\cu_top_0_bitmap.bin) could not be found! The build probably failed.

The /sbt/..... folder tree does not exist in the project folder after the failure, so I assume what ever sbt is, does not exist or does not work as it should.

I cannot find any information on the googeler. Any guidance for an FPGA Noob?

K


  Can't load Au or Mojo v3 boards using Alchitry Labs or Alchitry Loader
Posted by: tgimon - 03-18-2021, 06:36 AM - Forum: General Questions - Replies (1)

I'm trying to use a new Alchitry Au with Alchitry Labs. Building a project works fine, but I can't load the Au.

I've tried the following:

  • Trying to load the Au from Alchitry Labs has no effect.
  • Trying to load the Au from Alchitry Loader causes the loader to freeze.
  • The Au shows up in Device Manager under "Other Devices" as "Alchitry Au" twice with yellow warning triangles. (see attached screenshot)
  • The device status in both of the devices is "The drivers for this device are not installed. (Code 28) There are no compatible drivers for this device." (see attached screenshot)
  • The Au doesn't appear in FT Prog when I select "DEVICES >> Scan and Parse".
  • I've tried uninstalling both devices under Device Manager, unplugging the Au and plugging back in. This doesn't resolve anything.
  • I've tried uninstalling and reinstalling Alchitry Labs. This doesn't help either.

I'm also using a Mojo v3 with Alchitry Labs. Building a project works fine, but I can't load the Mojo unless I use Mojo Loader 1.3.0.

I've tried the following:
  • Trying to load the Mojo from Alchitry Labs has no effect (same result as the Au).
  • Trying to load the Mojo from Alchitry Loader causes the loader to freeze (same result as the Au).
  • The Mojo Loader 1.3.0 works fine.
I'm using Alchitry Labs 1.2.5 and Java JDK 15.0.2.



Attached Files
.png   device_manager_1.png (Size: 3.33 KB / Downloads: 3)
.png   device_manager_2.png (Size: 13.11 KB / Downloads: 3)

  FT Element Board
Posted by: martinee6474@gmail.com - 03-11-2021, 08:56 AM - Forum: General Questions - Replies (1)

I'm new to the platform and trying to understand what values must be used in my 'top' file to use the FT Element board on the AU+.


  Register Interface not launching
Posted by: scienceryan - 03-09-2021, 06:23 AM - Forum: General Questions - Replies (1)

Hey All, Alchitry newbie here looking for some advice.

When I try to launch the Register Interface in Lucid, nothing happens (eg.dialog boxes do not come up) .

I am using Alchitry Labs Version 1.2.5 on Windows 10
java version "15.0.2" 2021-01-19
Java™ SE Runtime Environment (build 15.0.2+7-27)
Java HotSpot™ 64-Bit Server VM (build 15.0.2+7-27, mixed mode, sharing)


Thoughts?
Undecided


  Mojo V3 not connecting
Posted by: andreipit - 03-04-2021, 01:04 PM - Forum: General Questions - Replies (3)

I recently bought a Mojo V3, but after i write the code in Alchitry Labs, build it succesfully and then press Program nothing happens, it just says Connecting.
Any1 who can help me with this problem?


  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?


  External clock shift register
Posted by: csereimarton - 02-20-2021, 07:54 AM - Forum: General Questions - Replies (1)

Hey all,

I would like to implement a shift register which reads and stores data on some lines based on a clock signal.
The clock signal is coming from an external chip (as well as the data). The frequency should be at about 40mhz.
I went through the tutorials on this site and searched on forums, but did not find such a thing.
I'm thinking it's a pretty generic scenario, however I can't really get results even for external clock. Is it something that's doable with FPGA?

I wrote a code for a simple D flip-flop array and connected it to the 8 leds. I used two arbitrary pins for data and clock.
For now I am using an avr to generate the data and clock signals with a lower frequency in order to see what's happening.
I checked the signals with a scope and they look pretty clean.

My issue right now is that the flip-flop seems to be triggered when data goes high (regardless of the clock). Other than that it works.
This is manifesting in getting all the high bits twice. Am I missing something?

The modified .ucf section

Code:
NET "clock" LOC = P5 | IOSTANDARD = LVCMOS18;
NET "data" LOC = P94 | IOSTANDARD = LVTTL;

The flip-flop:
Code:
module flipD #(parameter SIZE = 8) (
   input clock,
   input D,
   output [SIZE - 1 : 0] Q
 );

 reg [SIZE - 1 : 0] q;
 assign Q = q;

 always @(posedge clock) begin
   q = q << 1;
   q[0] = D;
 end

endmodule