Quick update... Face of this tool now looks this way. I have improved several things..
- Serial connection checks that the selected port is available and that the HomeBrew cable is connected.
- New version of the HomeBrew cable eliminates generation and checking of CRC. I now do this in software
such that CRC covers end to end. Not just the J1850 link is covered but also the serial nrz link and the usb link.
- Simplified interface to the cable should help if someone wants to port it to another cable

Future plan includes 4X

Tool.JPG

Kur4o: Is this more what you had in mind?

-Tom