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bigtreetech / BIGTREETECH-SKR-PRO-V1.1

Aiming at some problems existing in 3D printed motherboards in the market. Bigtree Technology Co., Ltd. launched a high performance 3D printer master board with STM32F407ZGT6 as the core controller, BIGTREETECH-SKR-PRO-V1.1.
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Error Communicating with SKR PRO V1.1 #178

Open TechnicalWorld2016 opened 3 years ago

TechnicalWorld2016 commented 3 years ago

I had uploaded marlin 2.0 firmware on my Bigtree tech SKR PRO V1.1 board successfully and connected with pronterface and checked the motor orientations. Next day I am about to do the PID tuning, but the board was not connecting to my PC, no COM port is detected my PC, I have tried to connect with other laptops in my office, but there is no result. The board is getting power on and taking input supply. When I try to press ENDSTOP manually, the respective led near stepper driver is blinking, resulting in normal functionality. But I am unable communicate with the board neither with Pronterface nor with TFT 2.8. I have tried changing the serial_port, Serial_port 2 in marlin and tried to upload the firmware, but no change in the result, finally I am unable to cummunicate with the Board.

If anyone have a solution, please do reply.

AnHardt commented 3 years ago

Concentrate to the thermal settings. Having them wrong causes a KILL what causes the loss of communication. Messing with the serials will not have any positive effect.

oldman4U commented 3 years ago

Hi.

In case something works properly but does not do so without changing anything - a hardware issue is most likely.

For USB and TFT connection of this board, you have to activate serial port -1 and 1.

Maybe attaching the Config files could help, but like I said. Most likely a hardware issue and then I would check the fuses first.

TechnicalWorld2016 commented 3 years ago

Hi, thank you for your suggestions.

Even i thought some hardware issues, the board doesn't have any traces of burns. It seems fine.

oldman4U commented 3 years ago

Maybe I am wrong or the provided information is not leading into the right direction. Happened to me a few times now, that I changed something which caused an issue somewhere else and it took some time to understand the relationship.

Btw. For this SKR board, the ESP01 based WIFI module replaced the USB connection completely for me.

Please do not forget to close this ticket in case you do not need it anymore.

Thank you

oldman4U commented 3 years ago

Please help the community and close the ticket once you do not need it anymore. Thank you

AMarinR commented 3 years ago

hello, I have exactly the same problem, yesterday everything worked fine, and today the board does not connect, not with the pc via usb, not with the screen, nor with the wifi.

any ideas?

AMarinR commented 3 years ago

I have solved it by flashing the bootloader

SwiftNick commented 3 years ago

Try enabling DTR/DSR in your comms settings

TechnicalWorld2016 commented 3 years ago

Really great to know. Is it possible to show how to Boot load it pls?

On Tue, Feb 9, 2021 at 3:54 AM AMarinR notifications@github.com wrote:

I have solved it by flashing the bootloader

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/bigtreetech/BIGTREETECH-SKR-PRO-V1.1/issues/178#issuecomment-775503879, or unsubscribe https://github.com/notifications/unsubscribe-auth/ARUEGFSLOFCTK6RRKOYWLRLS6BQBPANCNFSM4TJ633YQ .

jim-thompson commented 3 years ago

I have solved it by flashing the bootloader

@AMarinR How did you flash the bootloader and where did you find the bootloader binary?

ElekKecskemeti commented 3 years ago

I had the same problem. I also found a description and bootloader for my motherboard here. That solved it for me. I hope it helps you too.

link1 link2

AMarinR commented 3 years ago

I followed the instructions in this video

https://youtu.be/7O_ZOdnM0SU

Enviado desde mi iPhone X

El 17 may 2021, a las 9:20, ElekKecskemeti @.***> escribió:

 I had the same problem. I also found a description and bootloader for my motherboard here. That solved it for me. I hope it helps you too.

link1 link2

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

TechnicalWorld2016 commented 3 years ago

Hi every one. Thank you very much for your replies so far.

I have purchased an st-link and tried connecting to the Board, All the connections were correct.

I am unable to read or write i.e., unable to access the memory of the board but my board is getting connected to the st-link utility.

I have checked the readout protection, It was set to 1, and it is protected status.

As 1 can be replaced 0 as mentioned in the community.. I have tried changing 1 to 0 and tried connecting once again but the same problem repeats again .. And the Readout protection is not changed to 0, it is still 1 as previous.

But as per community guides and manual 1 can be overwrite to 0, Only read out protection 2 is not able to overwrite to 0 or 1 . but 1 can be overwritten to 0.

But in my case I am unable to do it. And, finally I am unable to upload the boot-loader again.

Someone please help me in this regard.

Thank you