Hi, I am using uVision V2.26 version IDE with CX 51. In my project I have 5 groups and each group had approximately 6 C Source code files. With these groups and files I am able to do compilation and execution in hardware in proper way. In same project I am not able to use Debug option. If I click Start Debug button code entering to debug mode, after pressing single step button, able to see disassembly code. Instead of disassembly code, I would like to see actual my C code. Please let me know is there any option for this. Thanks, Suresh Kumar Kavula