XJTAG is a specialist design and test tool developer. Its JTAG (Joint Test Action Group) development system offers a competitive solution for designers and developers of electronic circuits. Utilising XJTAG allows the circuit development and prototyping process to be shortened significantly by facilitating early test development, early design validation, fast development of functional tests and test re-use across circuits that use the same devices. The company is based in the UK at The Irwin Centre, Dry Drayton, Cambridge. XJTAG is part of the Cambridge Technology Group.

XJTAG was originally developed by a Cambridge (UK) based consultancy that specialises in real-time embedded systems, as a result of an increasing number of BGA and chipscale devices entering into their designs.

Due to the inaccessibility of the pins on such devices, a solution was needed to test and debug early design prototypes. After an extensive search, no suitable solution could be found that offered the flexibility, ease of use and price level required.

This led to the development of XJTAG offering for the first time a common platform for use by design and development engineers, test engineers, contract manufacturers and field test engineers, providing testing of not only JTAG-enabled devices but non-JTAG devices as well.

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