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NRF52840 and Installing SoftDevice SS340-SD-v6.1.1 ANT / BLE 5

RMall

I'm stuck with trying to install Nordic/ANT+ SoftDevice SS340-SD-v6.1.1 on the Adafruit Itsy Bitsy NRF52840.

Within nRF Connect - Programmer, I am getting the following error: "Unsupported device. The detected device could not be recognized as neither JLink device nor Nordic USB device."

Please help. Thanks.

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  • 0

    Hi, 

    How do you connect the Adafruit ItsyBitsy NRF52840 with PC? Are you using J-link or DK? See https://learn.adafruit.com/adafruit-itsybitsy-nrf52840-express/faqs#faq-2860855 

    Please also make sure provide 3.3V while connecting the VTRef pin on the JLink/DK. You can verify by checking J-Link Commander. 

    Regards,
    Amanda

  • 0 in reply to Amanda Hsieh

    Hi Amanda,

    Thanks for the response. I am using a PC and certainly there has to be another way to accomplish the installing/flashing of a newer SoftDevice without the mentioned Segger J-Link unit or one on-board the nRF52 Dev Kit, right?

    I have the existing bootloader "itsybitsy_nrf52840_express_bootloader-0.6.2_s140_6.1.1.zip" and "itsybitsy_nrf52840_express_bootloader-0.6.2_s140_6.1.1.hex" ... Isn't there a way to modify these with this newer S340 SoftDevice, like being able to point to the "ANT_s340_nrf52840_6.1.1.zip" and ANT_s340_nrf52840_6.1.1.hex" inside the bootloader? Along with renaming any instances of 's140' in the board support package "boards.txt" with 's340'?

    I have found this information where this can be accomplished without J-Link or DK, with just USB-UART using adafruit-nrfutil.
    - https://blogarak.wordpress.com/2020/03/29/arduino-ide-integration-for-the-nrf52840-feather-express-with-s340/ 

    Can you please help me confirm that this is a workable solution?

    Thanks.



  • 0 in reply to RMall

    Hi, 

    Yes, that is the possible way to update via bootloader as that link said, but I am not familiar with the detail because the itsybitsy_nrf52840 is not developed by Nordic. You could refer to that article and seek help from the author or Arduino forum.  

    -Amanda

  • 0 in reply to Amanda Hsieh

    Thanks Amanda!

    As a secondary measure, like you mention can I use a J-Link for updating the SoftDevice by doing what I did in my shared image through nRF Connect-Programmer? Or with a J-Link device will I use another program such as the J-Link Commander you briefly alluded to for updating the SoftDevice version? As I have since found out there is a Segger J-Link edu mini that is a reasonable purchase and can be helpful for many other things.

    Thanks for all of this! Would you be able to guide me toward any good reading/learning material as I continue on this journey with understanding all the possibilities of the nRF52840?

  • 0 in reply to RMall

    Hi, 

    From https://learn.adafruit.com/adafruit-itsybitsy-nrf52840-express/faqs#faq-2860855, it seems it needs a J-link to program the image. Then, it could use nRF Connect-Programmer, but you have to Segger J-Link edu mini can support Adafruit ItsyBitsy NRF52840 or not. 

    Not sure what you would develop on Adafruit ItsyBitsy NRF52840. Seem you are new to Adafruit ItsyBitsy NRF52840, I would suggest to start from Arduino BLE Examples. That might be easier for you. 

    Regards,
    Amanda

  • 0 in reply to Amanda Hsieh

    Thanks Amanda!

    I've been able to order the very popular and often sold out J-Link mini edu. I am seeing it is compatible with the NRF52/Cortex M chips. There are SWDIO and SWCLK pads on the bottom of the board, then of course the available VRef/3V and Gnd pins, supposedly those are the only valid and needed connections on the J-Link's 10 pin SWD (the other 6 links, so I'm hoping Dupont terminals and a bit of soldering on the two small board pads will accomplish communication.

    The first project is for an indoor spin bike. With a gyro/accelerometer (MPU6050) and a quality ADC (HX711 or ADS1115) connected to a set of strain gauges in a wheatstone bridge circuit on a drivetrain component (crank arm, pedal spindle, chainring, or bottom bracket axle) one can measure cadence (RPM), speed, crank angle (phi), torque (bending/twisting moment, Newtons), and power (watts).  Then sending this data wirelessly to a Garmin Edge head unit or custom made smart phone app. Then after, ultimately make a similar one for outdoor, rugged mountain bike use. Maybe also learning to condense all of this into the smallest form fitting PCB/battery package later. This will provide much more fulfillment, customization, and learning than buying a commercial unit.

    Since the predominance of Garmin fitness products communicate using the ANT protocol, I was wanting to start there first. I have more investigation with understanding the latest updates with BLE and ANT+ (Smart, 5, mesh, network topology, concurrent connections, connection integrity, packet loss, transmission rate, range/power/gain, crypto, etc.). So with the latest and greatest S340 SoftDevice I should have plenty to 'chew' and can go in any direction with learning.

    Thanks for your help in getting me through this update hurdle.

Reply
  • 0 in reply to Amanda Hsieh

    Thanks Amanda!

    I've been able to order the very popular and often sold out J-Link mini edu. I am seeing it is compatible with the NRF52/Cortex M chips. There are SWDIO and SWCLK pads on the bottom of the board, then of course the available VRef/3V and Gnd pins, supposedly those are the only valid and needed connections on the J-Link's 10 pin SWD (the other 6 links, so I'm hoping Dupont terminals and a bit of soldering on the two small board pads will accomplish communication.

    The first project is for an indoor spin bike. With a gyro/accelerometer (MPU6050) and a quality ADC (HX711 or ADS1115) connected to a set of strain gauges in a wheatstone bridge circuit on a drivetrain component (crank arm, pedal spindle, chainring, or bottom bracket axle) one can measure cadence (RPM), speed, crank angle (phi), torque (bending/twisting moment, Newtons), and power (watts).  Then sending this data wirelessly to a Garmin Edge head unit or custom made smart phone app. Then after, ultimately make a similar one for outdoor, rugged mountain bike use. Maybe also learning to condense all of this into the smallest form fitting PCB/battery package later. This will provide much more fulfillment, customization, and learning than buying a commercial unit.

    Since the predominance of Garmin fitness products communicate using the ANT protocol, I was wanting to start there first. I have more investigation with understanding the latest updates with BLE and ANT+ (Smart, 5, mesh, network topology, concurrent connections, connection integrity, packet loss, transmission rate, range/power/gain, crypto, etc.). So with the latest and greatest S340 SoftDevice I should have plenty to 'chew' and can go in any direction with learning.

    Thanks for your help in getting me through this update hurdle.

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