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Are Segger J-tag and J-link the same thing or are these two different things? I could not find helpful answers yet.

kruemi
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naveed
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    Do you mean JTAG by "J-tag"? – kruemi Dec 21 '22 at 10:10
  • JTAG is a standardized interface provided for example by Segger J-Link (and other vendors too). ARM microcontrollers uses SWD which is a "light version" of JTAG. – Lundin Dec 21 '22 at 13:04

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I don't think a product named "Segger J-tag" exists.

There is a product named Segger J-link which is a JTAG and SWD debug probe.

Klas-Kenny
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Assuming that you mean JTAG by "J-tag" and Segger J-Link than: No, they are not the same by a far stretch.

JTAG is an interface that allows programming and debugging of integrated circuits while mounted on a PCB.

J-Link is a series of debug probes (hardware devices that can use different interfaces to programm and debug circuits). J-Link can use different interfaces like SPI or JTAG to perform this task.

kruemi
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As @Klas-Kenny has already mentioned, I can't find any Segger product called Segger J-tag.

There are Segger J-Trace products, which compared to a Segger J-Link add ETM trace capability.

The tables of different product capabilities I'm aware of are in:

Chester Gillon
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For reference: J-Tag is like Car where as Segger J-link is like Audi and J-link Pro is like Audi R8

pdnr7
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