Ebb36

Recently i was looking for a guide which pins on the BIGTREETECH EBB36* can be used for 5V applications. After a bit of digging, i came across this forum entry  where it was described that the following pins are 5V tolerant: EBB36/42 v1.0 uses STM32F072C8T6 All Pins but PA0-7, PB0-1, PC0-5, PC13-15 are 5V tolerant EBB36/42 v1.1 and v1.2 use STM32G0B1CBT6 All Pins but PA4 and PA5 are 5V tolerant As usual, crosscheck these values, I’m not responsible for any damage resulting out of this article....

When i received the EBB36* of BIGTREETECH i slowly built up all the connections towards my existing hardware of the Ender 3v2. One information that was missing was the can bus connector details (e.g. type and pinout). The manual  unfortunately doesn’t show the details. You could derive it from the schematics  but still isn’t very visual. On different sites i then found the type of connector (Molex Microfit 3.0 2x2 connector) which is supposed to be connected as follows:

When i received the EBB36* of BIGTREETECH i slowly built up all the connections towards my existing hardware of the Ender 3v2. One information that was missing was the stepper pinout. The manual  specifies the port as “E-Motor” but doesn’t show the details. You could derive it from the schematics  but still isn’t very visual. I finally found it here  on github: 1 2 3 _____________________ | B2 | B1 | A1 | A2 | |_ ___________ _| Or more visually (please crosscheck the colors with your extruder of choice!...

While trying to flash the klipper firmware to an Bigtreetech EBB36, i ran into the following error: 1 2 3 4 5 6 23:29:04 : Erasing memory corresponding to segment 0: 23:29:04 : Not flash Memory : No erase done 23:29:04 : File segment @0x08000000 is not 255-bytes aligned. It will be aligned to @0x07FFFFF8 23:29:04 : Download in Progress: 23:29:05 : Error: failed to download Segment[0] 23:29:05 : Error: failed to download the File After fiddeling around a bit i finally stumbled across two solutions....