• Memory allocation and segment definitions
    Hello all, My goal is to get some variables placed in EEPROM without hardcoding it to a fixed address (using the _at_ keyword is unfortunately not an option). The variable shall be assigned to a certain...
  • ISD51
    Hi every body. Is it possible to use the USB port for the ISD-51 instead of the UART port? (The UART port can serve also as GIO). Thanks Kobi.
  • idata
    Hello, Q1: This is a part of my project code flow explanation. I want to allocate seperate memory location in internal data for the formal parameter local variable - lid. How is it possible using...
  • ISD51 software
    I just studies software debug using ISD51 through AT89C51SND1C's UART port.but now i have some questions. let me describe it. I write a simple main program in keil uvsion2 ICE(below), then add some...
  • ISD51 problems
    1.I can't access PORT1,PORT2 from the debugger; 2.Can I use the "printf" function to send something to the serial window of the debugger?