# Klipper on a BTT SKR v1.4 Turbo with TMC2240 drivers **URL:** \ **Category:** General Discussion\ **Created:** [March 24, 2025, 6:31am UTC](https://klipper.discourse.group/t/klipper-on-a-btt-skr-v1-4-turbo-with-tmc2240-drivers/22635 "2025-03-24T06:31:59Z")\ **Posts on this page:** 1\ **Showing post:** 26
**Author:** ![nefelim4ag](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/nefelim4ag/32/2387_2.png) [@nefelim4ag](https://klipper.discourse.group/u/nefelim4ag)\ **Post date:** [March 30, 2025, 10:36am UTC](https://klipper.discourse.group/t/klipper-on-a-btt-skr-v1-4-turbo-with-tmc2240-drivers/22635/26 "2025-03-30T10:36:43Z")
> [@liveitnerd](#): > > Was there anything I was meant to add to the printer.cfg file with the change to the firmware and spi\_software.c? No, it is self-contained. In your logs, you should be able to see that your MCU now has a dirty flag in the version. `DUMP_TMC STEPPER=stepper_x` should be enough to check out, I think. As I mentioned in case of unconnected SPI there will be a lot of `ff`. In case of too fast SCK, I would expect to see garbage here. Possibly, you can simplify your update by doing: `make; make flash FLASH_DEVICE=/dev/serial/by-id/usb-Klipper_lpc1769_18E0FF1668944BAF71BD7D5DC12000F5-if00` * * * That’s an issue, I don’t know. You may want to try: - Flash it with `slower` lpc1768 firmware, not sure if it helps. - TMC2240 supports UART mode, so you can configure it in this mode. (cs\_pin → uart\_pin, and maybe change jumpers, you can try without touching them). _Generally, it would be helpful, to have someone with this board and SPI drivers, to get the idea if it is already working for someone._ Hmm, looks like there was at least one: [Help needed with SKR1.4, TMC5160 and BL Touch Klipper setup](https://klipper.discourse.group/t/help-needed-with-skr1-4-tmc5160-and-bl-touch-klipper-setup/278) --- _[View the full topic](https://klipper.discourse.group/t/klipper-on-a-btt-skr-v1-4-turbo-with-tmc2240-drivers/22635)._