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nRF52 - Zephyr, boot hangs

GiulianoFranchetto

Hi,

We are using a BL652 from Laird, embedding a nRF52832. We wanted to give Zephyr a try, but we are facing a problem.

We compiled the blink example, but when we flash the hex file generated by Zephyr and reset the board, nothing happens.

The BL652-DK and the nRF52832-DK have the same pin linked to LED1.

Every example we compiled and flashed on the board has the same behavior: nothing happens.

It seems that the CPU is lost, and doesn't know what to do. Or maybe the bootloader hangs for some reason.

Do we have to change something in order to make zephyr work on the BL652 (maybe the linker script)? Or is the problem deeper?

Best regards, and happy new year to everyone!

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    Hi,

    Did you try following this blog post/guide to get started with Zephyr on nRF5x devices? I do not have a BL652 device available, but I teste with the nRF52 DK and that works as expected.

    BL652 is not listed as a board supported by Zephyr, so you should maybe ask the developers if there is any plans to support this module, or if there are some problems related to this.

    Does your board have a 32 kHz crystal oscillator? If not, it might cause some errors in the initialization. Have you checked with the terminal if there are any output from the device? I tested the Bluetooth Beacon example described in the above linked guide and this prints some status messages to the terminal.

    Best regards,

    Jørgen

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  • 0

    Hi,

    Did you try following this blog post/guide to get started with Zephyr on nRF5x devices? I do not have a BL652 device available, but I teste with the nRF52 DK and that works as expected.

    BL652 is not listed as a board supported by Zephyr, so you should maybe ask the developers if there is any plans to support this module, or if there are some problems related to this.

    Does your board have a 32 kHz crystal oscillator? If not, it might cause some errors in the initialization. Have you checked with the terminal if there are any output from the device? I tested the Bluetooth Beacon example described in the above linked guide and this prints some status messages to the terminal.

    Best regards,

    Jørgen

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