My laptop does not detect my dongle after I program it through nrfConnect. I am thinking that maybe I have to reflash the pca 10059 firmware, but I do not have any nrf development kit. Is there a way to revert the dongle to its original configuration?
Hi
Are you able to find the dongle if you press down the button on the dongle when you insert into the computer?
This will put the device into bootloader mode and allow you to flash a new application using nrf connect for desktop's programmer app. If not you need to use a programmer or a development kit to flash the bootloader again
Regards
Runar
I am using NrfConnect for Desktop. I was testing different programs on my dongle, and I clicked write in nrf connect without resetting the dongle first. I got a pop up that now mcu bootloader will be used to program it, and I realized my mistake, so I clicked cancel, instead of Ok, and reset the dongle with the sideway button. Now my laptop is not detecting the dongle due to some error in dongle, and each time I connect it to laptop, it shows green light and then the error is shown by laptop and the light stops. Then I have to reset it, and reprogram through nrf connect, which is done successfully. After that, the error again emerges, and dongle is not detected. If I reset it and remove it, upon attaching back to laptop, it is not in programmable state, and error emerges.
Thanks for the information
Just to verify. Did you try to set the device in bootloader mode when you inserted into the computer? What application have you tried to flash on the dongle?
I saw in the closed ticket that you tried to flash FW for the PCA10056, not 59 which is the dongle
Regards
Runar
Yes, when I insert into laptop, I press the dongle reset button. I have flashed many applications before, but after this problem, I receive the error irrespective of the application. The FW I use, are from pca10056 examples, but I change the board name in preprocessor macro as instructed in dongle programming tutorial. I also change the RAM details, in non-ble related applications.
Yes, when I insert into laptop, I press the dongle reset button. I have flashed many applications before, but after this problem, I receive the error irrespective of the application. The FW I use, are from pca10056 examples, but I change the board name in preprocessor macro as instructed in dongle programming tutorial. I also change the RAM details, in non-ble related applications.
If you have a dk or some other programmer I would suggest flashing the bootloader FW again on the dongle. You can find a link to the bootloader in Einar blog regarding how to use the dongle here
Regards
Runar
Can you tell what kind of programmer can be used to flash FW other than DK. Also is it normal for the dongle firmware to corrupt so easliy, when I did not even proceed to program without reset?
Normally I would suggest a Jlink-lite or similar. However I'm still not sure what you have done with the dongle. I have had my dongle for some years without seeing any issue nor have I heard.
You are saying that you can program it, but after you take it out of bootloader mode it fails? That sounds to me like thare is something wrong with the cdc sample you flashed to the device. Do you see this if you for example but it in bootloader mode and try a non usb-cdc sample?
Regards
Runar
Yes, the problem remains with any kind of program I flash. After I reset the dongle and eject it, upon inserting it again, the red light does not flash, it is in the previous programmed state, and I have to reset again. After programming any kind of program, the usb is no longer detected. This all happened suddenly, even though I have done nothing out of the ordinary.
So when you push the button and this make the USB start up and you can program the device? If so then the bootloader should be working as designed.
The USB missing when you start the program you have downloaded is normally due to the code not using the USB interface or the USB code being faulty.
What samples have you programmed into the part that should have USB that doesn't work?
