DollaTek Emulator V8 JTAG Adapter Converter EK1199

The one I received was I think a later version than depicted - it has better ground planes, not so many traces on the bottom layer, no screen print on the top. It looks well enough made, and has some handy un-populated jumper connections to allow you to connect to the MCU's core voltage and to fiddle with TCK and RTCK signals.However, I didn't study the pictures closely enough before purchase, and made the assumption that the "small" 10-way and 20-way JTAG connectors would be the ARM-Cortex standard 1.27mm (0.05") pitch. On this board, though, they are not, they are larger 2mm pitch connectors. I've seen very few 2mm connectors used for JTAG in practice - there are 14-pin ones on some Xilinx FPGA boards, with a different pinout, and Keil's U-Link has a 2mm pitch 20-pin header with the same layout as here, which is the same as the 20-pin 0.1" pitch ARM JTAG.While I don't feel cheated, as this thing was cheap, is well enough made and will undoubtedly be handy, it doesn't do what I initially wanted it for, which is to adapt 20-pin 0.1" ARM JTAG connections (which it does have both male and female varieties of) to 10 or 20-pin 0.05" ARM Cortex SWD connections (which is doesn't have any of). The 10-pin connectors on this board, both 0.1" pitch and 2mm pitch, both have the same layout, and it's *not* the ARM-Coresight/Cortex JTAG/SWD layout.The 20-pin 0.1" male and female connectors are connected pin-for-pin and the labeling coincides with the pinout of a J-Link or other ARM JTAG interface.The 2.0mm pitch 20-pin connector has the same layout as the 0.1" 20-pin.The 14-pin 0.1" connector is the fairly obscure ARM-14 pinout (NOT either ST's nor TI's 14-pin layout, nor Renesas's JTAG or FINE layout).The 10-pin connectors have a layout I've not personally encountered - it's NOT the ARM-coresight layout, nor the AVR layout, nor the Lattice layout. (The pictures I've included show the labels.)The 4-pin SIL connector could be used for arbitrary SWD cables, e.g. for a typical Raspberry Pi Pico board.The 6-pin SIL connector is not the same as either ST's Nucelo board ST-Link SWD connectors, nor the Digilent FTDI layout - again, it's labeled, it seems to be its own special thing.Summary - if you just want a 20-pin 0.1" ARM JTAG to 0.05" 10-pin ARM-Coresight or SWD, this is not the adapter for you. Nor will its 14-pin connector help you out with TI's, ST's or Renesas's 14-pin JTAGs.

Qualität nicht auf höchstem Niveau.Bin noch nicht dazu gekommen die Platine auf Kurzschlüsse zu messen. Sieht aber brauchbar aus.Außerdem denke ich, jemand der Microcontroller programmiert hat im Zeifelsfall ein Multimeter und nen Lötkolben zur Hand.Kurzgesagt:ich denke man kann das Teil benutzen. Aber ohne vorherige Prüfung würde ich die Platine nicht an meinen teuren Prototyp anschließen.

Un peu encombrant, mais le coté couteau Suisse fait vite oublier ce petit défaut inhérent à ses capacités

Bien pratique, je ne comprend pas pourquoi ce n'est pas fourni avec un J-Link.