This is an open source hardware USB to LIN interface.
The design goal of this PCB was to provide two isolated LIN channels operating as commander or responder.
The PCB D5035-50 is based on the ATSAMx51J microcontroller from Microchip.
Any ATSAMx51J1x-Axx can be used, so every variant in TQFP-64, the bootloader and the firmware do work on all three memory sizes.
The first prototypes are up and running, populated with ATSAMD51J18A-AU.
The PCB D5035-51 is based on the ATSAMD21G17A-AU microcontroller from Microchip.
The first batch was partly populated with ATSAMDA1G16B-ABT, but the 8kiB SRAM in these turned out to be not enough for extended features.
The open source firmware for this project is here: https://github.com/jgressmann/sllin