Re: tools for the Lattice ICE-40 FPGA.

Hello All,Ran the test that Chris provided "time python ex_icestick.py" on 2 Ubuntu 12.04(2 core & 6 core AMD) and Pi 2B built w/yocto.  GCC needed to be upgraded to 4.9 from 4.6 to compile the tools.  This site provides and explanation on how to upgrade.  http://charette.no-ip.com:81/programming/2011-12-24_GCCv47/
 
| Yocto Pi 2B | 
 |
| 
 | 
 |
| real | 0m20.943s |
| user | 0m12.210s |
| sys | 0m0.500s |
| 
 | 
 |
| Ubuntu 2 core | 
 |
| real | 0m5.310s |
| user | 0m1.865s |
| sys | 0m0.197s |
| 
 | 
 |
| Ubuntu 6 core | 
 |
| 
 | 
 |
| real | 0m3.956s |
| user | 0m1.093s |
| sys | 0m0.120s |

 Dave completed the layout of the ICE-40 board a few days ago. 
   
   - Lattice iCE40-HX8K FPGA in 256-pin BGA.
   - 32 MByte SDRAM (16M x 16).
   - Serial configuration flash (at least 2 Mbit).
   - Three Grove connectors.
   - Two PMOD connectors.
   - One 20x2 header with 3.3V, ground and 18 FPGA I/Os.
   - Two SATA headers (for differential signals; don't know if they would work with SATA HDDs.)
   - DIP switch with four SPST switches.
   - Two momentary pushbuttons.
   - Four LEDs.
   - 32 KByte HAT EEPROM.
   - 40-pin RPi GPIO header.
 Excited to test.
Let me know if you have any questions.Cheers
Edward Vidal Jr. e-mail [email protected] 915-595-1613 


     On Tuesday, September 15, 2015 7:11 AM, Edward Vidal <[email protected]> wrote:
   

 Chris,Test results myhdl  15 sec yosys  11 sec
The resulting files are located at https://github.com/develone/raspberrypi2_yocto.git
The folder benchmark_yosys contains the file bench_mark_yosys.txt the steps I used and the files generated on RaspBerry Pi 2B.  It also has the iceiver folder.   Note chmod +x iceriver/icestick.sh to make it work.  Now need to compare the generated files that you got on Ubuntu.Let me if that is what you wanted.  I do not have a board to test the bin file.Regards Edward Vidal Jr. e-mail [email protected] 915-595-1613 


     On Monday, September 14, 2015 10:28 PM, Christopher Felton <[email protected]> wrote:
   

 On 9/14/15 2:32 PM, Edward Vidal wrote:
> Hi Chris, I added code to compute the shasum and now the make test is
> running longer.  I now are seeing 29 bin files.  This after
> installing the shasum which is about 50 mins.
>
> ls -la ~/shasum ; date -rwxr-xr-x 1 root root 23216 Sep 14 17:27
> /home/root/shasum Mon Sep 14 18:09:18 UTC 2015

Kinda, but I was curious how long it would comparatively
take to generate a bitstream starting with a myhdl file.

I don't have an R2 (or 1) to test but the following is
an example starting with a myhdl file, generating a
bitstream for an icestick using the open-source tools [1].

I built this into some automation stuff I have used in
the past.  Running the example on my old'sh ubuntu system
I get:

    >> time python ex_icestick.py
    real  0m3.6s

The above converts the simple myhdl file, then runs the
yosys/arachne/icestorm to generate the bitstream.  I
don't have an icestick so I couldn't test it.

Regards,
Chris

[1] 
https://github.com/cfelton/rhea/blob/master/examples/build/ex_icestick.py


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