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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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Raspberry Pi will not boot when connected to GTR board, and power is shared between devices #9

Open jonmstraub opened 4 years ago

jonmstraub commented 4 years ago

The 5.0V and 3.3V power pins in the Raspberry Pi header should likely not be allowed into the 5V and 3.3V busses on the GTR board.

Each board will be overdrawn on current causing a low power condition for the Raspberry Pi. There should be some isolation here.

bakaufman commented 4 years ago

Did you flip the ribbon cable and try?

clowrey commented 4 years ago

Yes this is correct.. Only connect TX, RX, GND between them for a safe connection... design is crazy to have a 40 pin header when only 3 pins are needed.

ghost commented 4 years ago

Cut the 3.3V pin! If i use RPi2 then this pin not problem. Now is use RPi 3B+ then not boot up when 3.3V is connected.

jonmstraub commented 4 years ago

Cut the 3.3V pin! If i use RPi2 then this pin not problem. Now is use RPi 3B+ then not boot up when 3.3V is connected.

Thank you for this info, though I understand there are workarounds. The point of opening the issue was to give feedback to the manufacturer to correct the problem in future releases.

Geraldblin commented 4 years ago

Hi can someone help me configure this board btt gtr 1.0 thx