• P87C51MX on-chip EDATA & XDATA addresses
    Hi every one, The Philips 87C51MX user's manual indicated that the on-chip EDATA ranges from 0x100 to 0xffff; which followed the IDATA. An article found in the Keil support knowledge base (CX51...
  • RTX-51 RAM usage
    The document indicates that the RTX requires minimun 450 Bytes XDATA, What could be the maximum for a small application and What should be taking care in order to minimize the XDATA usage. I have created...
  • P87C51MX: UART-1 even/odd parity
    Hello 51MX users, Has any one ever successfully used 51MX's UART-1 with either EVEN or ODD parity? My emulator does not use the 51MX chip directly, it uses the 51MX bond-out chip instead. My UART...
  • On-Chip XRAM Usage Problem
    Hello, We have an application running on DS89C450. We link the compiled objects by means of LX51 advanced linker and 'Linker Code Packing' of the linker is enabled with the optimization level of...
  • On Chip RAM
    Hi I am new to KEIL compiler I had downloaded keil compiler uvision3 evalution version In that they have given one example program "HELLO" i compiled that code it worked ok But when I tried to...