firmware jlink v8 nrf52

RE: firmware jlink v8 nrf52

RK — Wed, 21 Jun 2017 12:09:20 GMT

I think people shouldn't rip off Segger's intellectual property. If you want to use JLink, buy a legal JLink, either by buying the nRF52 dev kit as Sigurd recommends (which also gives you a super development platform, loads of read-made examples and the debugger and is great value) or get a JLink EDU which if you're a student, or non-commercial, you can buy. Thats $60 and is a full Jlink product.

Segger certainly have been putting more checks for illegal clones in their software, quite reasonably, so they are stuck on old versions of the firmware which won't support recent chips.

Or buy a cheap CMSIS DAP programmer and use openocd, that's cheap and legal.

RE: firmware jlink v8 nrf52

phanhust — Wed, 21 Jun 2017 03:38:19 GMT

i used jlink v8 cheap clone with nrf51, it worked fine. but when i connect to nrf52 and can't detect the chip. i think with nrf52, we have to use jlink portable.

RE: firmware jlink v8 nrf52

Wojtek — Tue, 20 Jun 2017 22:17:53 GMT

Do you really need to recover your chip, or you are trying that option because you cannot flash? I used that cheap v8 clone some time ago with nRF51 - i just connected SWD lines, GND, and power detection and it just simply worked. However, I have not updated the firmware of the flasher, as it would become not usable.

RE: firmware jlink v8 nrf52

Sigurd — Tue, 20 Jun 2017 15:27:18 GMT

You could try to recover it directly using nrfjprog. Open the command line, and use nrfjprog -f nrf52 --recover

RE: firmware jlink v8 nrf52

phanhust — Tue, 20 Jun 2017 14:35:56 GMT

in my case, i just can have this nrfboard link text and jlink clone 12$ form china :(. could you have other ways ?

RE: firmware jlink v8 nrf52

Sigurd — Tue, 20 Jun 2017 14:10:59 GMT

Hi,

I would recommend buying an nRF52 development kit, and use the on-board Segger J-link programmer on the DK. You can use the on-board J-link programmer to program both the on-board nRF chip, and also external nRF chips using the P19 or the P20 connector. See this infocenter page for more information.