I take that by 'exported' you mean commercially used.

"A, Work then its OK. "

Yes, till it "unexplainedly" fails.

"B, Work and can be exported then its good."

The same will happen here

C, Work and is used again and again, then its excellent.

That does not prevent "unexplained" failures.


"But still our major demand will be option A. And if it gots to B or C. Its usually our luck etc."

Good code is not a matter of luck, it is a matter of proper design.


"Also remember that we are not writing program for PC, we write program for mcu, with usually fixed hardware."

That should be the very reason for doing it right.

I am not trying to pick a fight, I just have to state that GOOD PROPER DESIGN is the ONLY way to go.

Have fun, but do it right

Erik