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Ulink 2 or J-link?

Jakob Blower

I can not decide whether to buy ULINK2 debugger from Keil or J-Link from Segger, MDK-ARM supports both. Can you advise?

  • 0

    With J-LINK you can use Keil tools and IAR tools.

  • 0

    I own both of them. If you decide to work exlusive with KEIL µVision, you should pay for an
    ULINK2. ULINK2 is supported only by Keil µVision - none other.
    If you unsure working exclusice with the Keil Ide, you should decide you for Seggers J-LINK, that
    got a wide support of IDE's that are available now. I had noticed, that the ULINK2 are faster in Uploading and upload
    and debugging and feels closer integrated in µVision environement as any other and does not need any driver installation
    or updates of Windows usb drivers because they use the HID drivers.
    The J-LINK is more flexible and supports a wide range of Chips and is not brand specific.The support of the from Segger is awesome
    and supported by every well known IDE - even LINUX, MAC-OS10 or Windows. The J-LINK is upgradable for a bunch of debuggers
    and needs just a license code. I hope this helps you to find a decision for your purposes.
    I don't want to fix me on Keil, so i purchaised both of them.

  • 0 in reply to Jupp Kaltofen

    Actually, I find J-Link is faster even when downloading the program,
    at least when you use the J-Link Flash loader.

    See
    segger.com/jlink-flash-download.html

    Also, you have the option to use an unlimited number of breakpoints in flash memory,
    which is especially important if you are using a device with few breakpoints.

    See
    segger.com/jlink-unlimited-flash-breakpoints.html