Re: CPLDs/FPGAs toolchain

From: Jim Brain <brain_at_jbrain.com>
Date: Fri, 22 Apr 2016 23:12:17 -0500
Message-ID: <571AF621.3070209@jbrain.com>
On 4/22/2016 4:41 PM, silverdr@wfmh.org.pl wrote:
>> On 2016-04-22, at 18:52, Jim Brain <brain@jbrain.com> wrote:
>>
>> I will admit that strategic and timely help from a few knowledgeable people who knew more about HDL than I was immensely helpful.  I am happy to pass on that help, because I am now pretty comfortable with the toolchain (Verilog, still learning, as I am still messing up when to use reg or wire)
> One of the n00bs question is: are the HDL designs transferrable (capacity permitting) between FPGAs and CPLDs? And another one: are those transferrable (when common language like Verilog or VHDL is used) between chips from different vendors?
>
Transferring from CPLD to FPGA is pretty easy.

I'd recommend staying away from special vendor specific constructs is 
possible and letting the tool infer the gates you need.  If using a 
specific gate is unavoidable, wrap it into a library that can be 
abstracted from the design.

Jim


-- 
Jim Brain
brain@jbrain.com
www.jbrain.com


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