A few weeks ago we wrote about our Bus Pirate universal serial interface tool. We used the recent holiday to add some new features, like a JTAG programmer, macros, frequency measurement, and more. A ...

– Extend the IEEE 1149.1 Test Bus into a Multi-drop Backplane Environment (This allows cards to be removed from the backplane without breaking the JTAG chain) – A Mode Register Allows Local TAPS to be ...

Editor's Note: I've long been impressed by Xcell Journal from Xilinx, both for the quality of its production and the quality of its articles. A few weeks ago we looked at an article on Replacing ...

A daisy chain consisting of multiple devices can be quite cumbersome to control, especially when the only device that needs updating is the last one in the chain. Each device in the chain must be ...

Unleashed as an out-of-the-box tool to debug and test circuits consisting of BGA and chip-scale devices, the XJTAG Development System now includes a JTAG chain debugger featuring a range of options ...

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.