Hello, Can you please tell me about STARTUP.a51 file: When I create new KEIL project is it necessary to select device from the list of devices? When I create new project, no matter if I choose to include STARTUP.a51 file in project or not, STARTUP.a51 will exist in *.m51 file, and also will appear in the begining of the FPGA simulation (8051 core is included in FPGA design), and also in *.hex file. Can I avoid that? Can you please help me about that, It's very urgent... Best regards, Branislava