• Dual data pointer registers problem
    Hi there, I run the codes below in uVision3 V3.30 in order to see the effect of AUXR1 register in switching DPTR0 and DPTR1. I choose the device as AT89S51 which provides the dual DPTR function...
  • Cast 80515 dual data pointer configuration
    I am trying to use uVision and C51 with a Cast R80515 core that runs on an asic chip. I am having problems with my dual data pointer setup. The device database contains an entry for Cast R80515. This...
  • Problem with C51 v5.5 and Atmel Dual Pointers
    Hi, all. I seem to have a problem with C51 (DOS) v5.50 and the Atmel AT89S53. The program is all C (no assembler) and accesses different parts of XDATA memory from both the normal main program...
  • Problem with C51 v5.5 and Atmel Dual Pointers
    Hi, all. I seem to have a problem with C51 (DOS) v5.50 and the Atmel AT89S53. The program is all C (no assembler) and accesses different parts of XDATA memory from both the normal main program...
  • Dual DPTR
    Hi I want to use dual DPTR on my 89c669 from Philips. When i insert the pragma #pragma modp2 I get this error(s) *** ERROR L127: UNRESOLVED EXTERNAL SYMBOL SYMBOL: ?C?STRCPYP2 MODULE: ....