nrf51822 programming using nrfgoStudio

[air]

Hello,

I programmed about 200 nrf51822 boards for prototype production. The order was softdevice - bootloader - application. In the process of test I saw some abnormal boards(over 30%). It seems that they go into halt state during operation, even though there was no fail in programming.

So, I have some question.

1. If there is no fail message is it right to be regarded as a success?
2. Is there anything special in programming?
3. Does program include verity? If not, should I verify after programming every time?
4. I want to program all in a time. I can merge softdevice/bootloader/application. After that, which tool could I use to do so?

That's all. Thanks.

[bjorn-spockeli]

Hi Air,

1. Yes, if there are no error, then I would assume that the board was programmed correctly.
2. I am not quite sure what you mean here.
3. I believe that nRFGo Studio performs a verify operation after it flashes a hex file.
4. Yes, after merging the bootloader, application and softdevice using mergehex, you can use nrfjprog to flash the combined hex file. nrfjprog and mergehex are both a part of the nRF5x Commandline Tools and can be downloaded from this page under "PC Software".

Note that nRFGo Studio is just a GUI on top of nrfjprog, but generally, I would recommend using nrfjprog for production programming, e.g.

nrfjprog --program <name of combined hex file>.hex --chiperase --verify

This will erase the entire chip before flashing the combined hex file and finally read back the flash to verify that it was flashed correctly.

Best regards

Bjørn

[air]

I appreciate your help again.