My First test with nRF52840 on MS04SF7_V1.0 (from Minew dongle)

[ramon]

I have follow the nordic documentation but I can not get the blinky example on the dongle nRF52840

[ramon]

Hi Simon

Thanks (again)

First, I can not read the dongle, on nRFConnect the read (boton) is not available. (image 3)

Then, I am doing this:

1. Dongle have a reset botton and I start this process with the LED linking in Blue color

2. I am using SDK nRF5 V16.3.0_59ac345

3 I flashed hex file on path \examples\peripheral\blinky\hex (image 2)

4. With nRFconnect V 3.2.0 and programmer V 1.2.3 I (image 1) connect to dongle (image 4)

5. Load hex file on File Memory Layout ( image 5 ready to write )

6 I got and error on writting hex file (image 6)

The dongle LED flash: green-blue-red repeatedly

I reset with push botton on dongle and discovere a new configiration on dongle (image 7) 

Thanks 

Ramón

 

[awneil]

Did anyone mention that this would be a whole lot simpler if you just got a Dev Kit?

If you want to climb Everest, you have to make sure that you have the right equipment & experience before you reach Base Camp ...

You don't arrive at the Olympic Village and only then think about starting training...

[Simonr]

Hi Ramon

This is working as intended. When you connect to nRFConnect, the Dongle is in DFU mode. When you write another firmware to it, I.E. the blinky example, the device will reset when the write is completed and the Dongle won't show up in nRFConnect unless the application uses the DFU Trigger library. As stated in the Dongle programming tutorial, "You will get an error stating "Reopen device failed" and have to push the RESET button in order to make it show up in nRF Connect again."

The Dongle flashes green-blue-red because that is what the Blinky example does on the Dongle. It "blinks" between the available colors.

Best regards,

Simon

[ramon]

Simon, 

Thanks, 

I will confirm this process.

( I just got the nRF52840 DK, I will try with going with tha basics )

Regards

Ramón 

[awneil]

ramon said:

I just got the nRF52840 DK, I will try with going with tha basics

Be sure to begin at the beginning, and follow the steps carefully...