The implementation of Design-for-Manufacturing (DfM) alongside the use of high quality assembly and inspection equipment minimizes the chance for assembly errors. In spite of this, however, assembly errors do occur and PCBAs must be tested to detect these errors in an effort to achieve PCBAs with zero defects.

A test sequence (also known as TestPlan) is used to execute individual actions (step types) such as power switching, structural or functional tests, limit compares or device programming actions in a logical order.

Various parameters determine the type of test and programming hardware that fits best. Such parameters include performance, form factor, integration possibilities with other test stations already in use, etc.

In production, when devices are programmed as part of the board configuration process, a complete range of different devices and device types must be supported. For efficiency reasons such programming should ideally be undertaken using the same hardware as used for testing

The JTAG Live controller is a compact, low-cost and easy-to-use USB JTAG/Boundary-scan interface, from JTAG Technologies.

Aimed at hardware debug and board ’bring-up’ the JTAGLive controller is compatible with both JTAGLive and ProVision software. This JTAG hardware interface is USB connected and powered, and features a single test access port in JTAG Technologies standard 10-way IDC pin-out.

It offers a maximum programmable TCK speed of up to 6 MHz and also features programmable output voltages and input thresholds.

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