Russel Said : “I cannot understand why the usb 8051 cannot defer send/receiving information”,"why not use a beefier cpu with usb and connect the user interface directly to it?" “I think a little lateral thought may create a easier, more cost effective solution. If I'm telling you how to suck eggs, please humour me!!”

First of all I posted this message because I wanted my Ideas to be criticized, second I don’t want humour you because you don’t know about my project and its not possible to explain every detail of the project in a message board, third I can never say for sure that my ideas are cheapest, fastest, easiest, most obtainable, most upgradeable,… and simply the best for the purpose and I think no engineer can say that for his or her designs, but you have to sacrifice some benefits for others and what you choose to sacrifice most of times depends on your taste and personality. Though there are some technical reasons that I have not chosen an expensive, fast microcontroller with embedded usb (like having other I/Os including serial I/O with other parts of circuit, although if one has used standard serial port already, it is possible to use a software implement I2C but it is very demanding), I should say I could use an expensive usb-embedded microcontroller. But one thing about me, I just like modular design and as long as I can implement the idea without passing expense, time, resources,… limits, I prefer a modular design, I don’t know why, It’s in my blood! Anyway thank you for your opinion and seriously I think it worth thinking about. Each protocol has its benefits and its drawbacks, and I want to know the drawbacks of mine.

Regards,
Ebrahim Vakilpour