Hi Ahmed,

if you a hardware guru and very familiar with a CPU (bus interfaces, timing, interrupt logic, periperal data sheets, drivers, power suppply considerations, EMI, ...) then you can try to build your own board with it.

If not, I suggest earnest, buy a ready made board.
Otherwise I assume, only after about the 3. redesign your board should work at first but still far from good reliability.

Yes, its very easy also for beginners to build an 8051 board based on a ISP programmable Flash micro.
But you want a many times more powerful design, which can not be done with a single chip.


Peter