• Debugger aborted !Incorrect license ID code (LIC) in 'TOOLS.INI'
    Hello, I am using KEIL floating license and I tried to launch debug session my project. I can build the project and load it into development kit. However, The following error message appears when...
  • WARNING C500 (PORT IS BUSY)
    Dear all, When I type, C:/Keil/C51/BIN/C51 foo.c DB OE NOCOND CD SB WL(1) NOAM INCDIR(a long list of include dir;) Error Message: C51 COMPILER V7.20 - SN: C1S7P-60655E COPYRIGHT KEIL ELEKTRONIK...
  • warning C500: Serial Number Expired
    Hi, I have just updated to C51 8.12 and now get this error with every C file in the project. I cannot find reference to this warning in the knowledge base. Only unrelated ones to dongles/ports that...
  • tools.ini
    Hi, Is there any document about the ALL directives in tools.ini? Thanks. mars22
  • warning C500: MISSING DEVICE (COMMUNICATIONS ERROR)
    I am getting this warning and it is for all the files. MAINPROC.C(1): warning C500: MISSING DEVICE (COMMUNICATIONS ERROR) Can any one tell throw some light? It was working fine till yesterday. ...