• 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...
  • 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. ...
  • C500 compilation error
    Hi, I am developing Cypress USB FX2 firmware and using Keil IDE.While compiling my code I am facing following warning : WARNING C500 : MISSING DEVICE :SECURITY KEY NOT FOUND.. I looked in to...
  • I2C Busy Busy detection
    Hello, I'm implementing I2C Multi-Master/Slave mode handling in the LPC2132 chip. I have few queries about the LPC213x's I2C controller operations. The user manual says that if the is SI bit (serial...
  • warning C500: INCORRECT LICENSE ID CODE (LIC) IN 'TOOLS.INI'
    Hi We are working with a Novell Network, which Keil uVision 4.72.9 is distributed as a Bundle. We got over 30 stations, where our students are working with it. On one station we got the error message...