PCA10056 erase error

RE: PCA10056 erase error

Petter Myhre — Thu, 07 Sep 2017 14:27:17 GMT

Ok. Then I'm not sure what to suggest. Maybe you can try and program the nRF52840 chip on the bad board with with good board? And/or try to program the nRF52840 chip on the good board with the bad board? By using Debug Out/In and running the chip you want to program from battery. Maybe it can give us some clues.

RE: PCA10056 erase error

mjw — Thu, 07 Sep 2017 13:59:40 GMT

nrfjprog -f nrf52 --recover --log reports this to the console:

$ nrfjprog -f nrf52 --recover --log

Recovering device. This operation might take 30s.
ERROR: Recover failed. Please make sure that the correct device family is given
ERROR: and try again.

and this to the log file (which is the same as what was logged with --eraseall):

FUNCTION: open_dll.
FUNCTION: open_dll.
FUNCTION: enum_emu_snr.
FUNCTION: enum_emu_snr.
FUNCTION: enum_emu_snr.
FUNCTION: enum_emu_snr.
FUNCTION: connect_to_emu_with_snr.
FUNCTION: connect_to_emu_with_snr.
FUNCTION: connect_to_emu_without_snr.
FUNCTION: enum_emu_snr.
Device "NRF52832_XXAA" selected.
FUNCTION: recover.
FUNCTION: recover.
JLinkARM.dll CORESIGHT_WriteAPDPReg returned error -1.
JLinkARM.dll CORESIGHT_WriteAPDPReg returned error -102.
FUNCTION: close_dll.
FUNCTION: close_dll.

A different USB cable gives the same result. I haven't tried a different PC, but the PC works fine with a different PDK board, so I think the PC is okay.

Thanks! (and sorry for the horrible formatting)

RE: PCA10056 erase error

Petter Myhre — Thu, 07 Sep 2017 09:25:13 GMT

What log do you get with nrfjprog -f nrf52 --recover --log ?

Did you try another cable? Or another PC?

RE: PCA10056 erase error

mjw — Wed, 06 Sep 2017 22:26:12 GMT

Fair enough. :) The board is unmodified and the components look intact. Luckily I have another NRF 52840 PDK, and with the same PC, tool versions, and USB cable, that one is recognized correctly, so I'm suspecting faulty board or firmware. The problematic board is recognized by J-Link Configurator and it has the same J-Link OB firmware as the working PDK (SAMU128-V2-NordicSem V1.00).

RE: PCA10056 erase error

endnode — Wed, 06 Sep 2017 21:40:08 GMT

No, I've just seen too many JTAG/SWD programming errors caused by bad USB cables that I'd bet it causes yours as well;) Is nRF52840 PDK board unchanged, nothing is attached to any port/PIN? Is USB cable short and well shielded? Can you try another USB port and/or machine? You can also check status/version of SEGGER J-Link OB FW by running J-Link Configurator tool from SEGRE J-Link SW package you have installed on your machine. If it doesn't see the board or doesn't recognize the FW then you might have other problems...

RE: PCA10056 erase error

mjw — Wed, 06 Sep 2017 21:34:26 GMT

I just have the single USB cable from my PC to the board, and with different cables I get the same behavior. Do you think there's wiring on the PCB that could be faulty? Thanks!

RE: PCA10056 erase error

endnode — Wed, 06 Sep 2017 21:24:10 GMT

Cabling cabling cabling...