[SOLVED] How to prevent J-Link from automatically updating firmware on Linux

v01d · Oct 5th 2017, 3:26am

On Linux:This is second time now I notice that after upgrading J-Link installation and running J-Link, it does not ask like on Windows, but proceeds to update the firmware.
How to prevent it? (flag to tell it NOT to do this..? seems this is default behavior on Windows ).

As a side effect, while is updating it my Linux drops USB device and that update fails, leaving the J-Link with no / corrupt firmware.
If not for the J-Link bootloader installed I probably would have it fried.

SEGGER - Niklas · Oct 5th 2017, 12:38pm

Hi,

On Linux:This is second time now I notice that after upgrading J-Link installation and running J-Link, it does not ask like on Windows, but proceeds to update the firmware.

This is the intended behavior. We currently do not ask on Linux / macOS, because we do not support GUI interactions in the command line tools on Linux / macOS.
I do not know if there are plans to ask on Linux / macOS, in the future, since updating the firmware when using a new J-Link software, which is manually(!) updated by the user (!!) makes sense.

How to prevent it? (flag to tell it NOT to do this..? seems this is default behavior on Windows ).

Please get in touch with the mail support. There is no official way.

Best regards,
Niklas

v01d · Oct 6th 2017, 1:58am

Hi Niklas,

... since updating the firmware when using a new J-Link software, which is manually(!) updated by the user (!!) makes sense. ..

Ok, I was taking it as risky in case update goes wrong & fries J-Link box.

(I'm updating my J-Link application soft because of bug fixes I want in or expect to fix things..)

SEGGER - Niklas · Oct 6th 2017, 9:16am

Hi,

Ok, I was taking it as risky in case update goes wrong & fries J-Link box.

Well, that is what the boot loader is therefore.

The bootloader is not updated during fw updates and therefore should always be available as a fallback.

Best regards,
Niklas

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