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

[Simonr]

Hi Ramon

As Torsten says, there is some overlapping data on the code you're flashing to the Dongle. You can reset the Dongle and use the Read button in nRFConnect to see what overlaps. The second error is expected with Dongles without a debugger, as the bootloader usually executes the application after flashing the chip, and therefore needs a reset in order to be discovered as a bootloader again. 

I can't seem to find any Dongle like this on Minew's pages, so if you could provide a datasheet for the Dongle you have, I may be able to help you further.

Best regards,

Simon

[ramon]

Hi Simon, 

Thanks Torsten

As I said, this is my (our) first time in this world of chips and programming.

I have from Minew the datasheet. Atached.

First Comment:

with the first thing, about overlapping, I undertand that Not to writte the hex file.

When I reset the dongle, do not flash on red the LED.

Second comment:

I do not have a tag connect cable. With this dongle can I flash hex files without it (without the cable ?)

Question ?

Is it neccesary to get the cable and the J-link ??

ThanksC2 nRF52840 USB Dongle (3).pdf

[awneil]

ramon said:

this is my (our) first time in this world of chips and programming

You mean you've never done any microcontroller work at all before?

Then trying to jump straight into microcontrollers and BLE radio comms all at once is a very big leap!

So, again, I would even more strongly recommend that you get a Nordic nRF52840 Development Kit:

https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-DK

Then you will have:

• A well-known platform that everyone is familiar with and, thus, can help you on;
   
• Ready-to-go examples specifically tailored for that board - and, again, examples that people are familiar with and, thus, can help you on;
   
• A built-in J-Link debugger/programmer - so no need to worry about obtaining & configuring a separate tool, cables, etc.

Once you have gained familiarity with the Product and the tools, then you will be in a position to move onto 3rd-party boards.

Are you familiar with 'C' programming?

[ramon]

Thanks, 

I know is a big leap !

I have a basics for microcontrollers, and I need to explore BLE radios for a couple of projects.

I will follow the links that you share.

But for the momento this dongle from Minew is the only thing that I have to explore.

Thanks

Raymond 

[awneil]

ramon said:

for a couple of projects

Is that hobby, school, or professional projects?

ramon said:

the momento this dongle from Minew is the only thing that I have to explore

Seriously, put it aside and order the Nordic kit!

While you're waiting for the DK to arrive, spend the time reading-up on BLE in general, and studying the Nordic documentation, videos, etc.

The time it's going to take you to fight this Minew thing will probably be longer than the time for the DK to arrive!

You need to order extra parts for the Minew anyhow - so you might as well just order the DK!

Trying to start with the Minew is like saying "I know nothing about cars, have never driven, so I've bought a Porsche to learn". A Porsche is a great car - but not what you need to learn in! It will be uncomfortable, difficult to control - and you'll probably end up crashing it!