Hi,

I need to be able to check whether a programming device has J-FLASH license installed, so that I can use the erasechip command in J-FLASH. And I need to do this in command line.
I can start j-link and then type 'license show' and it will give me a list, which I could parse if I could get as a return string. But I can't see how you run this in the command line and the documentation does not mention anything about this. I can also also see licenses using JLinkLicenseManager.exe but that program apparently doesn't support command line use.

Can anyone please help?

Kind regards,
Christian

Hi Fabian,
yes, it does work. Thanks for finding out.

But, having thought more about this I have come to a conclusion. Parsing of returned strings from a 3rd party device is not a good solution. Yes, you may keep the exact same formatting and license naming - but the principle of having to rely on something that you have no control of should be avoided if possible.

Let me fill you in with some additional details. We have a NRF52840 device and we can program this using NRF eval boards (comes with an on-board JTAG programmer). These boards are much cheaper than an Ultra+ so some in our team use these eval boards for local NRF work, and we always use the Ultra+ in our test systems and in production.

The main problem I face is that if there is no JFLASH license present then JFLASH opens a pop-up window that you apparently have to close manually. It would be really nice if I could get JFLASH to just close with an error code. Of course I can opt to kill JFLASH (and spawned child processes if any) if it doesn't complete within 1s. That is simple - but again - this would not be a nice way to go about it.

So, my question is: Can you get JFLASH to close automatically with an error code if a required license is not present?

Kind regards,
Christian