JoAnn Manges

Here is Bigtreetech's answer to the schematic diagram: 

I solved my issue by creating a custom bootloader for the board by modified the smoothieware bootloader. If anyone else want to solve this problem you can be the modified...

@chrstrvs Check out this https://github.com/bigtreetech/BIGTREETECH-SKR-PRO-V1.1/issues/72

> I Do it as descriptet only on Windows. But it dont work, No response from the target, the Boot loader can not be startet. > > Should i remove...

# > > As far i can see the hardware SPI variants in the above guide can't work. > The software uses the 'default SPI bus' (SPI = SPI1) where...

> The BTT SKR PROs have 3 SPI-buses. Marlin, in general, is able to use all of them. > It's Adafruit_MAX31865 library what does not allow to select an other...

> I'm having issue working this configuration > `#define SERIAL_PORT -1 #define SERIAL_PORT_2 1` > > I'm using this guide to connect MAX31865 in software SPI configuration: > [https://drive.google.com/file/d/1zOky07F_R_DO_-XxZx6C3xULqhuxYMOi/view?usp=sharing](url) >...

### @code505 I downloaded the latest Marlin version 2.0.6.1 and made the changes that I have on my printer. Do you have a filament runout sensor attached on your printer?...

## @AnHardt Could I use this device and hack into the SPI Lines for the SKR PRO V1.1 and GTR V1.0 boards? Maybe that would work? https://www.amazon.com/gp/product/B088WB5L8R/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 ![TF Cloud device...

@AnHardt, Thanks for setting me straight on the Adafruit library issue! I am now fixing the guide so that I will not be giving out bad information. Just to be...