This page covers any general information for the board, which is supported from 3.4beta2.
The board name in board.txt is biqoctopus_1.1.
The jumpers should be installed as below. “SPI mode Interpolation” is supported for TMC5160 drivers. “UART mode Interpolation” should be used when using smart drivers (i.e. TMC2208, TMC2209, TMC2225 and TMC2226)
Driver Diag Pin
If you want to use sensorless homing, a jumper needs adding next to each appropriate endstop as shown below.