• Large Memory Model and internal XRAM PDATA
    I'm using the ADI ADuC831 and would like to use the lowest 256 bytes of internal XRAM as PDATA. Is there a way to disable the the compiler from setting PORT2.. and assume 0?
  • PDATA Segment
    I am not sure, if I have understood the usage of the PDATA segment properly. When pdata is used (in the compact memory model), the variables in the external memory can be addressed with MOVX A,@Rx...
  • writing to pdata
    hi all iam working on cygnal mcus.i would like to make my code as compact as possible . iam performing memory operations , presently iam writing to external memory. but i would like to use pdata ,...
  • pdata paging
    Hello, I'm using a Cygnal C8051F020 that has a nice fat 8k SRAM and a nifty register EMI0CN that allows "paging" of the pdata segment into the 8k. 1) How do I get the compiler to accept the fact...
  • PDATA question
    I have not used PDATA before, so this may be a silly question. Can I set up PDATA dynamically (within the code) to any 256-byte chunk of xdata? So I can change where the PDATA is "looking" in xdata on...