I just update my version of C51 Keil in version 6.20. I tried to compile an old project and the OH51 file do a fatal error! So, my hex file was not created ! My OH51.exe version is 2.5 What's happended ? Does anyone have the same problem ?
That's not a message whose appear in the 'build' output window. This is a little window whose appears in the center of the screen. In this box we can read: OH51 "This program will be stopped because it encounters an unsupported operation." (excuse me for my english, my original error has in french...)