Hello! I am new working with DS5000T, just start to do communication with PC via RS232. Up to now, I find it failed on both transmit and receive, but it works well with port P0,P1, P2 etc. After a hex file made, I find the code does not start address with 0000 but 0800 instead. Would you please suggest what wrong step I made may lead to this. Also I have the printscreen of the address and the simple C program code. Who and How can I pass to, so that it shows a clearer situation.