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Richard Erlacher
09/07/08 23:04
Read: 927 times
Denver, Co

Msg Score: +1
 +1 Good Answer/Helpful
#158038 - Look for old PC motherboard cache RAM
Responding to: Jecksons Ben's previous message
Jecksons Ben said:
Thanks, Jan

I'm looking that open-source and documentation about miniLA.

Here's in my country..bought electronics parts expensive that outside..meanwhile we only get salaries 2-3US$ a day...Alas.

Other countries followed the tax rules...get cheap prices.
here's bribe costums to past the import and get below tax the mass quantities...
No place for experimenters..

I'm replacing the Xilinx XC with my Cypress CPLD.

How's about AS7C33128PFS32A,Is there similiar IC replacement?

Best Regards

You may find that the XILINX CPLD is faster than the Cypress types. Also, you can, perhaps, substitute multiple async cache SRAMs, extracted from old PC motherboards, or elsewhere, in parallel for the 32/36-bit wide sync SRAM.

With the Cypress 37C256 or thereabouts, you may be able to get close to a 100 MHz sample rate, depending on how many trips your logic takes through the product term array and switch matrix. You may find that you can use somewhat slower SRAM with clever SRAM arrangement. Do consider using alternate phases of the same clock to drive alternate banks of SRAM, enabled by a toggling LSB on the ADDRESS bus.


List of 29 messages in thread
Logic Analyzer      Per Guldmann      09/04/08 06:31      
   another option      Erik Malund      09/04/08 07:38      
   From the embedded muse...      Jon Ledbetter      09/04/08 08:19      
      that Jack is a King      Erik Malund      09/04/08 09:33      
   I bought one...      Dave Brooks      09/04/08 12:40      
      Exactly what analyzer did you buy?      Per Westermark      09/04/08 12:52      
         the 34 channel one...      Dave Brooks      09/04/08 13:02      
            Link      Andy Neil      09/05/08 01:29      
      in the job where I work now...      Jan Waclawek      09/04/08 13:05      
         logic analyzer      Per Guldmann      09/08/08 14:25      
            lucky you      Erik Malund      09/08/08 14:37      
         Logic Analyzer projects      Andy Peters      09/08/08 18:45      
            use the FPGA memory for trigger FIFO      Richard Erlacher      09/08/08 20:34      
            thst's it!      Jan Waclawek      09/17/08 00:36      
               do you mean "PC-software" or "Windows software"      Richard Erlacher      09/17/08 04:31      
                  Both.      Jan Waclawek      09/17/08 12:00      
                     now ... I\'ve never done this ... but ...      Richard Erlacher      09/17/08 16:47      
                        MinGW + wxWidgets      Per Westermark      09/17/08 23:00      
   miniLA      Jan Waclawek      09/07/08 07:54      
      great info      Jecksons Ben      09/07/08 21:43      
         Look for old PC motherboard cache RAM        Richard Erlacher      09/07/08 23:04      
            Thank you      Jecksons Ben      09/08/08 18:50      
         replacement        Jan Waclawek      09/08/08 12:54      
            Thank's      Jecksons Ben      09/08/08 19:13      
   Found???      Jecksons Ben      09/16/08 22:01      
      Those are hard to work with      Richard Erlacher      09/17/08 04:34      
         Correct...but.      Jecksons Ben      09/17/08 21:32      
   Hi      Nomana Intekhab Hadi (Ruh      11/15/08 16:30      
      this defines ...      Andy Peters      11/19/08 14:31      

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