[BUG] Marlin bugfix-2.0.x - BTT GTR V1.0 - stepper motors at re-start

bigtreetech / BIGTREETECH-GTR-V1.0

BIGTREETECH GTR V1.0 motherboard is a high-performance 3D printer main control board with the core controller STM32F407IGT6, which was launched by the 3D printing team of ShenZhen BigTree Technology CO.,LTD ., aiming at solving some problems existing in the motherboard market. The BIGTREETECH GTR V1.0 is the motherboard, and the BIGTREETECH M5 V1.0 is the expansion board.

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[BUG] Marlin bugfix-2.0.x - BTT GTR V1.0 - stepper motors at re-start #50

Closed DrumClock closed 2 years ago

DrumClock commented 3 years ago

After turning on the power or restarting the printer:

Some stepper motors "jerk" and then lock for a few seconds. As soon as the FW starts, the stepper motors are released.

It does not matter if the driver is controlled by UART, SPI or STEP/DIR.

DrumClock commented 3 years ago

Hi @BigTreeTech everything will be done by the bootloader, because this is not the case on the MKS Rumba32 board so it can't be Marlin

DrumClock commented 3 years ago

Still unresolved: "Shame on you programmers"