What would it take to have an arm version of nrfjprog?

RE: What would it take to have an arm version of nrfjprog?

RK — Wed, 16 Aug 2017 12:19:57 GMT

well Segger replied and there is a version of the JLink SDK for ARM. So unless I've misunderstood how nrfjrprog is built, and I don't think so, Nordic should be able to compile a version for RaPi.

That doesn't mean they are going to, RaPi is a bit fragmented and I could understand if releasing one version means a ton of support going forward for what's currently a few users.

RE: What would it take to have an arm version of nrfjprog?

RK — Wed, 16 Aug 2017 06:14:06 GMT

but he doesn't need to do that - Segger provides a JLink package which runs on ARM, you can just run that. What they don't provide is a JLink SDK which allows Nordic to build nrfjprog for ARM.

RE: What would it take to have an arm version of nrfjprog?

rct42 — Wed, 16 Aug 2017 06:10:15 GMT

How about trying to program the NRF52 with a ST-Link and OpenOCD? Alternatively, there is always the BLE/UART bootloaders... I'm assuming you're just wanting to program the target from an ARM-based device that Segger might not have provided compatible binaries for?

RE: What would it take to have an arm version of nrfjprog?

RK — Tue, 15 Aug 2017 21:48:32 GMT

yes it's easy to program and flash from an ARM system, you just download the JLink tools for ARM which Segger do provide (with no support) and use any of the many scripts which existed long before nrfjprog cross platform. eg see devzone.nordicsemi.com/.../ which points to a shell script.

nrfjprog doesn't do terribly much, it's just very handy to have what it does in a single executable.

RE: What would it take to have an arm version of nrfjprog?

RK — Tue, 15 Aug 2017 21:46:02 GMT

What it would take is Segger to release a version of their JLink SDK for ARM so the code could be linked on an ARM device. I just asked them if they do (they didn't last time I checked).

Once that's available it should be pretty simple for Nordic to compile nrfjprog for RaPi if they wish.

You can't build it yourself, it requires the JLinkSDK which is a Segger licensed product, and a fairy costly one at that.

RE: What would it take to have an arm version of nrfjprog?

Bill Rees — Tue, 15 Aug 2017 21:37:11 GMT

Well, not so much the jlink as the nrfjprog utility. I've the arm on Linux software pack and am working with it and the next step would be where I use nrfjprog if I were on an x86 platform.

If there's another way to program an nrf52832 flash from an arm Linux system I'm very humbled because I haven't been able to find anything.

Would, perhaps, there be a spec for programming the flash?

Thanks

RE: What would it take to have an arm version of nrfjprog?

Daniel Wang — Tue, 15 Aug 2017 21:30:21 GMT

what do you mean by arm version? you mean the JLinkARM.dll version ?