Segger J-Link EDU mini - JTAG/SWD Debugger for Cortex-M Microcontrollers via USB

Great product! Works as advertising stated. Mine came with cables both usb and SWD connection cables.I am happy so far with this lil guy. It does everything the 85$ boxed Jlink EDU does with education licenses.I was able to pop it onto an arduino and use seggers free use software to debug and verify in real time.Although this will not work with particle argon or other gen 3 devices. It may work with gen 2 particle and nordic sdk.(use particle debugger for argon)Will update after i test using a few other devices.I recommend this for guys and gals that want a low cost alternative jtag debugger.Yes this has limitations, yes it does require licensing for extra product software features. Yes it does provide everything a tinkering, self motivated individual, would need to learn how to use a debugger and build a foundation in bare metal Development!

I needed something to program for a project I was working on which had JTAG connectors. I was previously using a hacked microsystems board to upload the bootloader to a SAMD21 chip, but it broke and I wanted something better suited for the job.I was pleasantly surprised with how plug-n-play it was with Microchip Studio and was even shocked when it worked with the Arduino IDE without a single error, with the ATMEL-ICE selected as the programmer since there's no option for this one.This is definitely a great purchase if you're doing personal projects and using a SAMD chip or need JTAG programming abilities. Considering this is a legit product and not a cheap knockoff with compatibility issues, the price is also great.

I'd tried and failed miserably with a Seeed JTAG pod. Once I solved the cabling issues with Adafruit 2743 soldered to half of a standard 10-pin IDC connector, this device worked immediately on my Mac hosts where I wasted hours with the other pod on two different host OSes. Single-stepping in the exception handler (the code that normally drives the debugger) is pretty awesome. It's super-nice to be able to single step coming right out of the reset vector and the mini includes the right to use the whole Segger library of tools.Their compiler, linker, debugger, semi-host shims, IDE that talks to hardware or simulator are all pretty awesome and are seemingly updated once or twice a week. The software really likes to remind you that you're using the beggar version. On MacOS, the license prompt comes up on the console instead of in an X window or text, so if you're starting them remotely (which otherwise works quite well) you have to physically go to the console to accept the license once a day.I'm successfully flashing and downloading several GD32V devices with this pod.The product is a little cheaper when purchased directly from Segger, but the convenience of Amazon delivery was worth it to me. It does lock up infrequently, but unplugging and plugging brings it back. I dock one star because this uses a crazy pitch cable instead of a "normal" .1 pitch cable that's always used for JTAG connectors. Dealing with the cabling issues cost me a couple of days for more parts to arrive, so plan carefully for the 1.27mm connectors.

What a great product for a low price. I got to the point in a couple of projects where I needed a programmer (to restore bootloader) and NEEDED a HW debugger. For $29 you can't beat this device. Comes with all the cables needed including the 10pin mini ribbon cable to connect to the debug port on Arduino PCAs.. It does have a limit on number breakpoints (more than I anticipate using) and it operates a bit sthan the more expensive J-Link, but it meets my expectations. I've been using it with SAMD21 and Atmel studio 7.

I bought this as a lower-cost way to confirm that the $1000 JLink debugger will support rp2040. This one complains about no support for multidrop (if I recall correctly), and digging around on the forums confirms that they haven't gotten around to supporting it (at least, for the EDU version).The experience killed my faith that the commercial JLink would support rp2040, so I went looking and found that Raspberry Pi sells their own debugger for 12 bucks. Problem solved!

I haven't figured out how to use it or what it is meant to interface with, but it is a little larger than postage stamp and has two surface mount ships and a LED. The larger chip must do all the work, and I guess the smaller one is the USB interface. I am just pointing out my observation that this is a beautiful integration. I look forward to using it, Segger products are great.

I used to mess around with busblaster+openocd... that worked, but it was a PITA.This segger adapter makes my life a lot easier when it comes to debug boards. I got it talking surprisingly quickly with STM32 Cube IDE and a custom PCB I designed with an STM ARM processor.

Real deal, flashed NXP MCU that defied my normal tools. Incredible software support.