[oc] Programs in Xilinx Block RAM

[Shehryar Shaheen <shehryar.shaheen@ul.ie>]

Hi,

     I intend to incorporate the Mini-Risc Core by Rudolf Usselmann with an FTDMA (similar to ByteFlight) controller.

 

What I need to know is how to synthesize programs in the program memory (Xilinx Block RAM). The hex2v program generates

a .rom file which is used within the test bench for simulations but for sysnthesis how to synthesize the program within the Block RAM

or if there is a way to dynamically download programs in the Block RAM.

 

I am using Xilinx WebPack and XC2S200 -5C Spartan-II  FPGA.

 

In the $WebPackRoot/bin/nt directory there is a generatecore.exe utility. I rough guess I have that I would have to generate

the Block RAM core with the program in it and then intantiate it in the Desisgn before synthesis. The generate core utility gives the following message

 

C:\xilinx_webpack\bin\nt>generatecore
Usage: generatecore [-cell <cellName>] [-component <componentName>] [-targetArch

 

<targetDeviceFamily>] [-library <libraryName>] [-package <packageName>]
[-outputFile <outputFileName>] [-outputDirectory <outputDirectory>] [-p
{<ppair>}] [-a {<apair>}] <simName>

 

 

But guessing and experimenting won't work (at least not fast enough). I'll be grateful if Rudolf Usselmann or any one else can 

answer.

 

Thanks in anticipation and kind regards

 

Shehryar