Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
03/27/07 11:00
Read: times


 		 #135953 - your application requirements are odd!
Responding to: ???'s previous message
Richard Erlacher said:
Andy Peters said:
Richard Erlacher said:
That flash-FPGA is their MAX-II isn't it?

Sadly, they're RAMless.


MAX-II sounds like an Altera CPLD.

I must have gone to sleep. They are ALTERA CPLD's but have architectural features similar to FPGA's.


That's because they are FPGAs marketed as CPLDs.

Richard Erlacher said:

Well, maybe, but only because the die wouldn't fit. If I need 2-dimensional FFT's on a video bitstream for scan-rate conversoin, and need only Ri, Gi, Bi, and CLOCKi in, and Ro, Go, Bo, and CLOCKo as outputs, who needs the other 240 pins?


Richard Erlacher said:
Extreme case, mayabe, but suppose you want to store an entire frame of high-definition TV so that you can process it into a format compatible with a 4096x2560 monitor in real time? All that while runing LINUX on the coresident CPU with 4 DSP's and associated hardware. No external SDRAM can be kept up.


All nonsense requirements, but suppose if tomorrow there would be a 16DIP Spartan4 or 1GB M512K Stratix4, you would be the first to then complain why these devices are not 5V tolerant.

Since you recommend against designing with FPGAs, all that rant doesn't matter really.

Cheers, Roger

List of 61 messages in thread
TopicAuthorDate
FPGA            01/01/70 00:00      
   Why on EARTH would you ask that stuff here?            01/01/70 00:00      
   Triscend, Zylogic, Actel            01/01/70 00:00      
      Triscend\'s gone quiet ... is that permanent?            01/01/70 00:00      
         Triscend is dead - now it's Zylogic            01/01/70 00:00      
            re soft-cores            01/01/70 00:00      
               So far, I've not encountered one that works at all            01/01/70 00:00      
         Published ?            01/01/70 00:00      
            Published => open source=> free, as in free beer            01/01/70 00:00      
      Actel Core8051 and Core8051s - "free"            01/01/70 00:00      
         Everyone I know refuses to use actel FPGAs            01/01/70 00:00      
            A good word for Actels            01/01/70 00:00      
            Good question            01/01/70 00:00      
               what we used to do when we gave out evaluation            01/01/70 00:00      
   VHDL Tutorial            01/01/70 00:00      
      Thanks,            01/01/70 00:00      
   Don't forget to read my extremely wonderous            01/01/70 00:00      
      ... and this thread, from a few months ago ...            01/01/70 00:00      
         so ... what did you ever do?            01/01/70 00:00      
            Not really, things change            01/01/70 00:00      
               sounds like '1553            01/01/70 00:00      
                  Yep and the optical version            01/01/70 00:00      
            I got a job!            01/01/70 00:00      
               Good for You!            01/01/70 00:00      
   related question            01/01/70 00:00      
      CPLD and FPGA            01/01/70 00:00      
         I'm not so sure ...            01/01/70 00:00      
      different feature sets, among other differences            01/01/70 00:00      
         I know the differences, thus my question            01/01/70 00:00      
      what happened?            01/01/70 00:00      
         Numbers ... what are the numbers?            01/01/70 00:00      
            Think of a number            01/01/70 00:00      
               FPGA with built-in config flash?            01/01/70 00:00      
                  RAM and Chips            01/01/70 00:00      
                     Maybe, but my needs are "different"            01/01/70 00:00      
                        you need to rethink your bga figures            01/01/70 00:00      
                           It\'s a culture thing ...            01/01/70 00:00      
                              Ive had a design reverse engineered            01/01/70 00:00      
                                 Comments and FPGAs            01/01/70 00:00      
                                 I've had one outright stolen ...            01/01/70 00:00      
                                    Design Security            01/01/70 00:00      
                                       do you report them            01/01/70 00:00      
                                          Reporting Crooks            01/01/70 00:00      
                  huh?            01/01/70 00:00      
                     last I heard xilinx still liked DLLs            01/01/70 00:00      
                        Unfortunately, they're useless as PLL's            01/01/70 00:00      
                           ba humbug!!            01/01/70 00:00      
                              not quite sure what happend there            01/01/70 00:00      
                              not so fast, Jez            01/01/70 00:00      
                     Maybe it\\\'s not so odd ...            01/01/70 00:00      
                        your application requirements are odd!            01/01/70 00:00      
                           I don't recommend against 'em            01/01/70 00:00      
                              evidently "my world' is unreal            01/01/70 00:00      
                                 Perhaps it is            01/01/70 00:00      
                              DLLs and locking            01/01/70 00:00      
                                 I considered that ...            01/01/70 00:00      
                                    re: I considered that ...            01/01/70 00:00      
                                       Consistent with my prior statement            01/01/70 00:00      
                                          you should try using a costas loop            01/01/70 00:00      
                                             That\\\'s for suppressed carrier, isn\\\'t it?            01/01/70 00:00      
   did u refered altera            01/01/70 00:00      

Back to Subject List