i am working on AT89C2051, i am trying to make a simple code as a start up for my full project .
i wrote i code just to switch the led on at P3^1 , it works in proteus but it is not working in real hardware .
also i tried to wrote a simple code in c language using Keil platform, and it burner by Willar Programmer. Here with I attached my code
No problem in using IDE Keil uvision 2 Evaluation version. The Evaluation version is capable to handle the code size up to 2 kb and your code is less than this. Have you made your own hardware or you are using EVK board (or development board) ??.