Need Help!

I am implementing a World Time Clock Panel with the 8051 micro-controller, and i am going to use keil uvision3 to download the program to the flash through the USE interface(ATMEL 8051 do not support USE interface ,SO i use FT232BM for USB --> RS232 converting ). But I don't not how to target the hardware (USB interface) by using KEIL. Could anyone tell me how the setting of the KEIL are please?

sorry for my poor English!

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