Hi Ahmed,


> I'm working alone in a project (research project) to develop a board in 3
> months that executes C++ code (will be given to me).

Forget it.

Embedded applications contain typically many hardware depending code.
So a separate written code will never working !
This was the reason, why Java was developed (be hardware independent).


> 1) Choose a microprocessor powerful enough like Intel 386 to support 1M
> address space as a data memory for that code, and because as i know there is
> a c++ compiler for Intel 386 to convert to the native language. right? , am
> i going to do anything except converting the code??

As already sayed, I build only 8051 hardware, since I am familiar with its timing conditions and pitfalls.

All others are buyed readymade only. E.g. we use also a Motorola board (2MB, booting over Ethernet for programming in C++).
So we have no circuit diagrams or sources (boot EPROM, ASICs).
There is a manual, which documented only all things to use it (bus connector, timings, memory and peripheral mapping and interrupt usage).


> 2) Choose a communication module whether a modem or an Ethernet Interface .
> I want to know which is easier to develop and which is cheaper?
>
> 3) Do i need any RTOS, BIOS or BIOS?

Whit no basic comprehension at this points again:

FORGET IT !!!



Peter