Making program look for usb instead of com

Sic1978

Commendable
Jan 2, 2017
4
0
1,510
Hi i have an engine management system i am tuning and the main software/interaction between my windows xp 32 virtual machine is fine, works great.
However i need to make some alterations to the firmware (not that you'll care, but to assign the various output/input wires to sensors the car would not normally have had)
The problem i have is that this program is a bit.... Victorian.
It will only allow me to connect via serial ports. Now i gave no serial port on the laptop, my ecu doesn't use one (and uses usb a to usb b to communicate) what can i do? People say online use a serial port converter, but then what do i do? Attach another serial port to usb to that then usb a to usb b converter cable to put it back? Seems impractical.
Surely theres some script i can add/alter or some third party software to map one of my usb's to com1 or something?
Any help gratefully recieved!
 

McVitas

Reputable
Jan 2, 2017
17
0
4,520
Communication protocol to interface with USB is totally different then the one for COM so I am sorry you will not fool your app to just use USB instead of COM. There is no chance it would work unless you get some patch for the app.
 

Sic1978

Commendable
Jan 2, 2017
4
0
1,510
Thanks for the response, dammit that was what i have feared. I have access to the siusb.dll files from its main program (in theory built from the same platform but the main program is obviously newer) i already know swapping them doesnt work as it throws up errors.
How easy is it to get a patch or similar .dll file? its a developer produced file for xp. The whole program folder content is a mere 500kb.
Are there people out there that enjoy this sort of thing and would be willing to help?
Alternatively could a virtual com port emulator work? (Forgive me if that last question is really dumb as i know im not looking for the same sort of signal)