If you’re reading Hackaday, you’ve almost certainly heard of JTAG. There’s an excellent chance you’ve even used it once or twice to reflash an unruly piece of hardware. But how well do you actually ...

[Matt Evans] was running up against the common programming gotcha caused by disappearing parallel ports. For years he had used a JTAG parallel cable when working with FPGAs but recently realized he no ...

Most complex electronic systems take advantage of the IEEE 1149.1 (JTAG) standard in one way or another. If the system uses complex FPGAs or CPLDs, then they are almost certainly configured using the ...

When developing a new board, many problems can occur. Bare, unpopulated boards can have shorts and opens that can cause circuits not to work or software to fail once the board is populated. After ...

It is fairly common knowledge that hacking into today’s intelligent Internet devices is child’s play in most cases. The main reason is that the devices have little or no innate security designed in.

In recent years, boundary scan has transformed itself. JTAG started more than a decade ago as a simple structural interconnect test technology. It now is a foundational embedded infrastructure capable ...

The JTAG port was introduced more than 30 years ago, but has changed as the industry has evolved, says James Stanbridge. For some engineers the term JTAG means a device programming port. For others it ...

JTAG has its place but it is not by any means the total solution. Boundary scan, as standardized by IEEE 1149.1 and commonly referred to as JTAG, has truly revolutionized the testability of circuit ...

Boundary Scan technique is most often thought of as a board-level test method, but certain techniques makes system level test with JTAG quite effective. Many types of faults can arise when systems are ...

JTAG Technologies and Altium have combined to offer the circuit board designer the capability to assess the JTAG/boundary-scan testing resources on their design before committing to layout. Called ...