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3rd party board with nrf52833 - schematic

simon1516

Hi,

I use a 3rd party board from raytac (https://www.raytac.com/product/ins.php?index_id=95) on my PCB and I have problems with a bluetooth low energy connection. On your DK board the application works fine. Can I post questions in here or do I have to send an inquiry to raytac?

I have an bluetooth low energy application. I can connect by nRF connect successfully to the custom board, but the connection will be lost after 10-20s. Then I have to reconnect, the board is advertising furthermore.

Is there anything special I can check if there is an issue like this?

Thanks in advance

Simon

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  • 0

    Obviously, if you have specific questions about Raytac's board, then Raytac are the people to answer them!

    But the nRF52833 chip remains the same - it is no different because it's on a 3rd-party board!

    Don't Raytac provide examples to tun on their board?

    simon1516 said:
    On your DK board the application works fine

    Which suggests that it is something specific to the Raytac board - doesn't it?

    Your first step should be to look carefully at the differences between the DK and the Raytac board

    simon1516 said:
    I can connect by nRF connect successfully to the custom board, but the connection will be lost after 10-20s.

    So you need to debug your application to see where it's going wrong!

    www.avrfreaks.net/.../2418156

    Again, look for differences from the behaviour on the DK.

  • 0 in reply to awneil
    awneil said:
    Which suggests that it is something specific to the Raytac board - doesn't it?

    Not exactly. Yes, Raytac provide examples, and I can flash and run them successfull to their DK board. I can also run my own application on the raytac DK board - it works fine.

    I got problems when I try to run this application to my custom board - a board which includes the raytec BLE module. So the error is in the schematic of my designed PCB, which includes the raytac BLE module.

    I attached the schematic we use. It´s just a raytac BLE module (which includes nrf52833) and a little bit peripheral such as a sensor and battery management. Maybe you can have a look at this? Otherwise it would be great if you can tell me, where I can get a doublecheck of this.

    I also run and debug the application in SES. But there I only get the message "disconnected" (s. screenshot attached) after the connection is lost. Can I get more information about the disconnection?

    Thanks for your help!

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  • 0 in reply to awneil
    awneil said:
    Which suggests that it is something specific to the Raytac board - doesn't it?

    Not exactly. Yes, Raytac provide examples, and I can flash and run them successfull to their DK board. I can also run my own application on the raytac DK board - it works fine.

    I got problems when I try to run this application to my custom board - a board which includes the raytec BLE module. So the error is in the schematic of my designed PCB, which includes the raytac BLE module.

    I attached the schematic we use. It´s just a raytac BLE module (which includes nrf52833) and a little bit peripheral such as a sensor and battery management. Maybe you can have a look at this? Otherwise it would be great if you can tell me, where I can get a doublecheck of this.

    I also run and debug the application in SES. But there I only get the message "disconnected" (s. screenshot attached) after the connection is lost. Can I get more information about the disconnection?

    Thanks for your help!

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