Re: Sparkfun Pro nRF52840 Mini support?


Rodrigo Peixoto <rodrigopex@...>
 

Hi Lawrence,

I am not aware if anyone is bringing up this board, but I can suggest you bring it up yourself. It is not a big deal. The process is copying, pasting, and changing some portion of the files. 

How experienced are you on Zephyr?


1 - Is the Bluetooth module using dc-dc or LDO? 
    YES: Do nothing just copy the board files and rename them;
     NO: You must to disable DCDC by setting the BOARD_ENABLE_DCDC to "default n" at the Kconfig file. 
2 - Is the low-frequency oscillator is present on the Bluetooth module?
    YES: Do nothing
    NO: You have to add the CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y to the "board_name_defconfig" file. 

The last step is to change the DTS to adjust the pins used by your board. 

If you need further help let us know.


Best regards,
Rodrigo Peixoto
Co-founder and Technical advisor

+55 (82) 98144-8585
http://ayna.tech | Skype: rodrigopex




Em qui, 18 de abr de 2019 às 11:09, Lawrence King <lawrence.king@...> escreveu:

I just received some Sparkfun nRF52840 boards and I was hoping to bring up Zephyr on the boards.

 

There is a Sparkfun nRF52832 board listed in the supported boards, but this board needs an external debugger. Now that Sparkfun has two different nRF52 boards I think that the existing board in the tree nrf52_sparkfun needs to be renamed to nrf52832_sparkfun, and the new board should be added as nrf52840_sparkfun.

 

The nrf52840_sparkfun board has an onboard bootloader which presents as a tty and a usb drive when I plug it in so I expect that pyOCD should work for loading code and debugging, however I think that the ROM layout may need to be changed to not overwrite the bootlopader.

 

Is anyone working on bringing up this board?

 

https://www.sparkfun.com/products/15025

 

 

Lawrence King

Principal Developer

Connected Transport Market Unit

https://www.Irdeto.com

+1(416)627-7302

 

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