• 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?
  • ISD51 Wierdness
    This is breaking my brain, a bit at a time... Code like this works perfectly: void initSerialPorts(void){ EA=1;//enable interrupts ES0=1;//enable serial port interrupts SCON0= 0xD0;//put serial...
  • ISD51 Error
    Hello all, I'm working with the C51 evaluation version downloaded from this site and i was trying to get the ISD51 debugger to run. When i press the debug button i'm receiving the following message...
  • 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?