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???
03/07/06 22:45
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 		 #111561 - Nope ... it's etched in concrete ...
Responding to: ???'s previous message
I'm not allowed to make any changes at all of any sort to the PCB. Whatever I do, I have to do it with the already-been-built PCB and component pinout. Due to regulatory requirements, etc, I can't even cut-n-paste, for now. I can alter the number of wait-states, and I can decrease the access time. I could, I suppose, even change the clock rate, unless it has impact on the firmware, which is disallowed.

Also, the MCU isn't an 805x type, and it has no on-board cache or prefetch queue. It's cheap, though, since the customer is the folks who make it.

RE


List of 28 messages in thread
TopicAuthorDate
Has anybody seen FAST FLASH?            01/01/70 00:00      
   nope but then again......            01/01/70 00:00      
      It's not an 805x            01/01/70 00:00      
   external flash as code memory            01/01/70 00:00      
      Fast Flash            01/01/70 00:00      
      That's what I wanted to avoid.            01/01/70 00:00      
         "scabbing-on"            01/01/70 00:00      
            Yes, but...            01/01/70 00:00      
               www.sst.com            01/01/70 00:00      
                  Too bad ...            01/01/70 00:00      
      It doesn't take much effort to use 2 MB            01/01/70 00:00      
         apples and oranges            01/01/70 00:00      
   silly me            01/01/70 00:00      
      Nope, not this time            01/01/70 00:00      
   what about            01/01/70 00:00      
      program/erase cycle isn't important            01/01/70 00:00      
         nvSRAM            01/01/70 00:00      
            too little SRAM            01/01/70 00:00      
               serial FLASH parallel SRAM?            01/01/70 00:00      
                  That won't work            01/01/70 00:00      
                     are you desperate enough?            01/01/70 00:00      
                        I didn't expect an easy fix.            01/01/70 00:00      
                           I used digikey as a "search engine" and            01/01/70 00:00      
                              40MHz bus speed            01/01/70 00:00      
                                 big=slow?            01/01/70 00:00      
                                    That's the case, sadly ...            01/01/70 00:00      
                                       could you            01/01/70 00:00      
                                          Nope ... it's etched in concrete ...            01/01/70 00:00      

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