Re: [myhdl-list] New MyHDL Tutorial Available.

[Christopher F. <chr...@gm...>]

On 4/13/2011 7:34 AM, David Rodríguez wrote:
> Yes it does. As I said, I was being "picky".

Picky is fine and encourage!

>
> Regarding the reset signal. Do you have a power_up pin on that FPGA that
> shows you when power has been enable? The reset signal could be hooked
> up to that pin.

Yes, you can use an unused PIN and configure it with a pullup and use it 
as an active low reset to some flip-flops to create a sync-reset.  This 
covers, voltage, clock, and config.  I explained a little why I did not 
use a reset in this circuit.  If most feel more comfortable with a reset 
I can add one.

>
> Do we have to explain how to pin assignment in the document?

I don't think so for this tutorial, I think we want it to be as much 
MyHDL focused as possible.  I am hoping to completely automate the 
bit-file creation.

>
> Chris, are you using a Mac for this...I have a couple of questions that
> would be a good idea to ask off the MyHDL list for Mac user...obviously
> regarding MyHDL.

I use a Mac and widoze and linux (ugh).  I have an older Mac (PPC) so I 
cannot run an emulated Win/Lin to run the Xilinx tools.  I have not 
tried Wine to run the P&R tools (I would be willing to give it a shot). 
  I can try and answer Mac-MyHDL questions.

>
>
>
> On Wed, Apr 13, 2011 at 1:21 PM, Christopher Felton
> <chr...@gm... <mailto:chr...@gm...>> wrote:
>
>     On 4/13/2011 2:55 AM, David Rodríguez wrote:
>      > Hi,
>      >
>      > I'm being "picky" but it will be a good idea to change variable
>     CLK_RATE
>      > to CLK_48Mhz. It makes more sense when reading the code as the
>     LED rate
>      > of change is also named LED_RATE. In doing so, it is easier to
>      > understand things like Nloops=CLK_48Mhz*LED_RATE.
>      >
>
>     Does CLK_FREQ work for you?  I don't want to explicitly state 48MHz
>     because we are targeting multiple boards, all which have different
>     frequencies.
>
>     Chris Felton
>
>     (I also noticed I can't do math in comments :), I will fix if someone
>     already hasn't )
>
>     <snip>
>
>
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> --
> David Rodríguez Martin
> Cambridge,UK
>
>
>
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> Forrester Wave Report - Recovery time is now measured in hours and minutes
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> Forrester found the best-in-class provider in terms of services and vision.
> Read this report now!  http://p.sf.net/sfu/ibm-webcastpromo
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