TMC5160 Datasheet - Trinamic
https://www.trinamic.com/fileadmin/assets/Products/ICs_Documents/TMC5160A_Datasheet_Rev1.14.pdf
TMC2226 Datasheet - Trinamic
https://www.trinamic.com/fileadmin/assets/Products/ICs_Documents/TMC2226_Datasheet_V106.pdf
TMC2209 and TMC5160: Guide for MKS Gen L and SKR V1.3
https://www.youtube.com/watch?v=dOJbSrWVu_Q
TMC2100 guide Part 1 Stepper driver upgrades - How to set VREF & firmware - Teaching Tech 2019feb23
https://www.youtube.com/watch?v=H41hIXdB6js&t=0s
TMC2208 guide Part2 Stepper driver upgrades - Teaching Tech, 2019feb26