onTAP JTAG Blog

Posted on March 1, 2020 in flynn systems, JTAG

When large numbers of outputs switch simultaneously, they can cause intermittency with your test due the ground bounce effect. JTAG Test with onTAP lets you control this problem by giving you control over how many outputs switch during a single test scan, as shown below:   Understanding ground bounce In manufacturing test environments, it’s not […]

If a chain of devices consisted only of boundary scan (JTAG) compliant devices, there would not be too much testing required. However, boards today contain complex, non-JTAG devices that interact with the boundary scan devices. Testing just the JTAG devices on the board is always an option. However, developing a test that takes into account […]

Posted on November 1, 2019 in Boundary Scan, JTAG, JTAG Boundary Scan

That’s an easy one. With onTAP’s TAP CONNECT JTAG Controller, you can run an unlimited number of chains simultaneously. Each TAP CONNECT JTAG Controller has two channels which provides the opportunity to run two chains at once. Furthermore, additional chains are handled with ease by additional Controllers. In fact, there are no restrictions on the […]

Posted on September 1, 2019 in Boundary Scan, Boundary Scan Test, flynn systems

Boundary scan testing can help you debug your devices, but what do you do when a bug has you completely stumped?

If you are designing PCBs, then circuit trace testing is an essential step in the process.