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SKR2 revB whent wrong with TMC2209 v3.1


Sebastian
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Hi all, my btt skr2 most probably got dammaged when powered with 24V and TMC2209 v3.1 driver in UART mode and sensorless homming jumpers configuration. Now processor heats burning the finger and board resets in loop. Firmware is default. Display TFT 35 v2 communication is now only possible when powering with power supply. Is it possible to burn the board because of stock firmware with this confiuration?

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Hi, according to your description, does the main control chip of SKR 2 heat up more than 40° now? If it is, this indicates that the chip is damaged. This could be due to a short circuit in the cable (wrong wiring), or static electricity. Please check whether the cables you connect are normal and provide your motherboard wiring diagram.

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7 hours ago, BTT Tony said:

Hi, according to your description, does the main control chip of SKR 2 heat up more than 40° now? If it is, this indicates that the chip is damaged. This could be due to a short circuit in the cable (wrong wiring), or static electricity. Please check whether the cables you connect are normal and provide your motherboard wiring diagram.

Hi, sort of 55° for processor. Wiring is correct. About static, here humidity is over 60% always!. Processor is comunicating with display only when powering with power supply. No more USB discovery.

https://drive.google.com/file/d/1fZPaYeTXzesBsJBKs5KykZOEH6pgB3lD/view?usp=sharing

https://drive.google.com/file/d/1f_e_nWKzEWT2HRrB9tdyh4e5FMUMOc8a/view?usp=sharing

Thank you

Sebastian

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