That’s fine, with Boundary Scan, you only need good power, ground and at least one part on the JTAG Chain to begin testing. When you get your initial boards, not all devices may be fitted. When bringing up and debugging your new hardware, Boundary Scan comes to the rescue in several important ways: Testing Partially Populated hardware This section introduces the types of tests possible with Boundary SCAN. to program devices in-circuit.īoundary SCAN supports chip, board and system level tests. Many popular programmable devices use the JTAG interface as well.

The same JTAG interface that is used for Boundary Scan test can also be used by tools that enable debugging of embedded firmware on microprocessors and microcontrollers. Manufacturing staff use JTAG Boundary Scan tools to test and debug circuit boards in a production environment, using boundary Scan test vectors. Terms typically used include: Production test tools The term JTAG is used loosely to describe board test and embedded debug interfaces based on the 1149.X specification. Manufacturing staff use Boundary Scan tools to test and debug circuit boards in a production environment, JTAG Boundary Scan Tools Test Engineers use Boundary Scan to creating tests for manufacturing and board repair. They may also use the tools to create tests for use in manufacturing. Design engineers use Boundary Scan for hardware bring up, validation and prototype debug.

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