# BTT SPI problems from WOWElectronics continued **URL:** \ **Category:** General Discussion\ **Created:** [February 3, 2024, 8:35pm UTC](https://klipper.discourse.group/t/btt-spi-problems-from-wowelectronics-continued/13791 "2024-02-03T20:35:32Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [February 5, 2024, 2:35am UTC](https://klipper.discourse.group/t/btt-spi-problems-from-wowelectronics-continued/13791/17 "2024-02-05T02:35:34Z")
We need to set some ground rules if I, or anybody, am **EVER** going to be able to help you. 1. Clearly explain your system. This means list the printer type, main controller type, driver type (which is critical in this case), host type and host to main controller connection. 2. Include your `klippy.log`. 3. Concisely articulate your primary concern and list any observations that you think may be useful - nothing more. NOTE: these three points are what you should have done when you first started this thread in “General Discussion”. 4. When asked a question, answer it clearly. If you don’t understand what is being asked request an explanation. Don’t go off on a tangent. 5. When a suggestion is made do that and nothing else. Report your observations and don’t add anything. Always attach the latest `klippy.log`; if it’s too big to attach then .zip it and attach the compressed file. 6. Wait for a response. Don’t make any changes until you are instructed to do so. I’m doing this because the `klippy.log` you just sent clearly shows that you just added a new `printer.cfg` file that you got from somewhere. Here is the original `klippy.log` you attached, I’ve marked it with “6” as that is the entry in this thread it was posted: [klippy\_Gene\_6.log](https://klipper.discourse.group/uploads/short-url/iMugZE1mnjEXS50xPOtRQIVbDPJ.log) (161.9 KB) Here is the second `klippy.log` you attached, I’ve marked it with “16” as that is the entry in this thread where it was posted: [klippy\_Gene\_16.log](https://klipper.discourse.group/uploads/short-url/xwPR920ns6ApAQ27OA4IYv7KLp0.log) (24.9 KB) Your `[mcu]` and '[printer]` statements from the first one: ```auto [mcu] serial = /dev/serial/by-id/usb-Klipper_stm32f429xx_3D004C001050325635383820-if00 [printer] kinematics = cartesian max_velocity = 600 max_accel = 10000 max_z_velocity = 5 max_z_accel = 100 ``` Your `[mcu]` and '[printer]` statements from the second one: ```auto [mcu] serial = /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0 restart_method = command [printer] kinematics = cartesian max_velocity = 500 max_accel = 5000 max_z_velocity = 10 max_z_accel = 200 ``` In the first `klippy.log`, your stepper\_x pins are defined as: ```auto [stepper_x] step_pin = PF13 dir_pin = PF12 enable_pin = PF14 ``` In the second `klippy.log`, your stepper\_x pins are defined as: ```auto [stepper_x] step_pin = PC2 dir_pin = !PB9 enable_pin = !PC3 ``` In the first `klippy.log`, you have `[tmc5160 stepper_...` statements that we were discussing. In the second `klippy.log`, there are none. In the second `klippy.log` there are a number of `[bed mesh,,,]` statements that are not present in the first. I can go on but it’s just going to piss me off even more. If you actually want help and this is not some perverse form of entertainment for you, then I suggest that you start a new thread in “General Discussion” and follow the guidelines I have set out above to the letter (including providing the information and `klippy.log` requested) and follow the spirit of the guidelines; that you will make it easy for me or somebody else to help you. My days of shooting at moving targets from a galloping horse with a blindfold on are over. --- _[View the full topic](https://klipper.discourse.group/t/btt-spi-problems-from-wowelectronics-continued/13791)._