• More external memory than 64k
    Hello. I am curious why there is a limitation of 64k on the C251 compiler, when the device can handle up to 256k? Is there a way around this?
  • code_size>64K with C51 => code_size<=64K with CX51?
    Hi all, We are using the C51 with OPTIMIZE (9, SIZE) and we have a problem the code space. The question is : if we change to CX51 and use OPTIMIZE (11, SIZE) , do you think we can save some code...
  • The extern and non-extern variables
    Hi, As I was in the progress of learning 8051(specifically F340 uC from Silabs) with Keil C51 compiler. I came across this extern variable. This is what happen, hope somebody can enlighten me: In...
  • how to use external program/data memory address up to 64k/1M?
    Hi, I got a chip from WINBOND, w78c438c. It claims that it support 64kb program/1MB data memory space for applications which need additional external memory to store large amount of data . does...
  • 64k banked code
    hi all, i was thinking to write a 512K code as 8x64k banks for an external flash memory, using some kind of jump table for functions call that are to differn banks. Could the Keil banked linker works...