Re: [myhdl-list] [ANN] myhdl_tools 0.0.1

[Alexander H. <ale...@gm...>]

Hi Chris

well, at least I am glad you released it! :-)
I also added some small improvements which made life easier for me
with these tools and hope you like them (bitbucket pull request).

Regarding the .ucf file: I can absolutely confirm the behaviour Thomas
described. If I add the .ucf file myself using
> brd.hdl_file_list.append('pone.ucf')
it works the first time and fails afterwards (Ubuntu 13.10 64bit, ISE 14.5).

Maybe a possible solution would be to find out in which config file
Xilinx stores the used project source files and modify this directly?
Alternatively, just deleting and recreating the xilinx directory every
time one does a run() should work, too!

Best,
Alex

2013/12/3 Christopher Felton <chr...@gm...>:
> <snip>
>>
>> Here is what I observe:
>>
>> Using fpga.run() to run synthesis, the ucf file is not used.
>> Starting the ISE GUI, I add the ucf-file to the sources file list,
>> and running fpga.run() again, the ucf file is used, and the pins are
>> located.  Starting fpga.run() again gies the same result.
>>
>> Remove the xilinx subdirectory completely.
>> I add 'xfile add myfile.ucf' to the code that generates the tcl
>> script, start fpga.run(), then everything works.
>> Starting fpga.run() a second time, I get an error that 'myfile.ucf'
>> is already part of the projects and sysnthesis fails.
>> I have to remove the xilinx subdirectory completely, then fpga.run()
>> works again.
>>
>> Whatever this means.
>>
>> Thomas
>>
>
> Ugh, one of the reasons I hesitate and was uncertain
> if I wanted to release this project or not,
> compatibility and version issues can be difficult to
> resolve :)
>
> I have some confidence that it the UCF is applied, at
> least on some version of ISE and some version of OS,
> otherwise this would have never worked:
> https://twitter.com/FeltonChris/status/360587567718080514
>
> I will play around and see if there is a better
> solution.  I do remember running into the the xfile
> add issue.  Maybe similar to the Altera TCL scripts,
> there is a way to force a *new* project every run - then
> the xfile would work.
>
> Regards,
> Chris
>
>
>
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