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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
06/13/08 12:06
Read: times


 		 #155847 - code memory limits
Responding to: ???'s previous message
Alex Cos said:
As ATMega128, 8052 address memory in a flat fashion up to 64 kb and for more memory some extra "tricks" must be used, right?

In ATMega, once you reach the 128kB (64kword) "code flat" limit (not "constant data flat", that's 64k), you are done, no tricks will help. You can then resort to the ATMega256x which has double of that code FLASH, but once you reach that, you have no more options. There is no way how you can add external code memory.

In SOME 8051 derivatives (not the SiLabs), you can attach as much *external* as you want; but it is not flat.

JW

List of 35 messages in thread
TopicAuthorDate
ATMega128 but new to 8052 (help)            01/01/70 00:00      
   general and specific            01/01/70 00:00      
      ATMega128 and 8051 (memory limit?!)            01/01/70 00:00      
         On memory sizes            01/01/70 00:00      
      ATMega128 and 8051 (memory limit?!) 2            01/01/70 00:00      
         Not a job for an 8051, then?            01/01/70 00:00      
   Heresy: Why not just use two AVRs?!            01/01/70 00:00      
      Reasons for not 2 ATMEL            01/01/70 00:00      
         This board            01/01/70 00:00      
            code and data space            01/01/70 00:00      
         Memory Measures            01/01/70 00:00      
         digikey, mouser            01/01/70 00:00      
         RE: the memory ammount I need ?!            01/01/70 00:00      
   128k flash + 4k SRAM + 4k eeprom            01/01/70 00:00      
      Memory and Chip            01/01/70 00:00      
         Memory Size            01/01/70 00:00      
            not free - but almost so            01/01/70 00:00      
         comparing the ATMega128 to the 8051f120            01/01/70 00:00      
         code memory limitations and OS            01/01/70 00:00      
            if it's just the internal RAM which is the concern...            01/01/70 00:00      
               NMIY-0031 link and more details....            01/01/70 00:00      
                  code memory limits            01/01/70 00:00      
   8052 stack in external RAM            01/01/70 00:00      
   8052 lacks of i2c?            01/01/70 00:00      
   8052 16 bit version?            01/01/70 00:00      
      two posts answered in one            01/01/70 00:00      
         f120            01/01/70 00:00      
            not much detail ???            01/01/70 00:00      
               8 bitter            01/01/70 00:00      
                  not the 'data short', the 'data sheet'            01/01/70 00:00      
                     Choosed! :-)            01/01/70 00:00      
                  stack might mean many things            01/01/70 00:00      
                     About stack            01/01/70 00:00      
                        there is a lot of magic in compilers            01/01/70 00:00      
                  The Hardware Stack            01/01/70 00:00      

Back to Subject List