For starters, NO!
Simple question maybe, but profoundly complicated........There is much to learn though before you jump in. DYODD
If you use a factory turbo engine conversion, you use the TURBO/ECU/MAF-VAF/LOOM/INJECTORS etc. This is for emissions legality purposes also.
If you want to turbo an NA engine, you will need an aftermarket ECU! That is just the start. You will need much more than an aftermarket ECU to boost an NA engine & keep it more than a day.
Piggybacks are used whereby the EMS is already boost controlled. Ie: a turbo ECU