circuit trace Download Request


Thank you for your interest in circuit trace! Click the button below to download a free trial version.

circuit trace gives you the flexibility to drive and sense JTAG pins as well as use unused controller pins for direct-drive GPIO.

circuit trace uses IEEE Std. 1149.x BSDL files that will let you quickly trace, control and measure boundary scan pins on your board.

Be sure to try circuit trace’s rich, natural language scripting tool.

To purchase a licensed version of circuit trace,  contact us today! We offer a 30-day money back guarantee if circuit trace doesn’t trace JTAG connections on your PCB!

  • General Software improvements
  • Corrects potential crash conditions
  • Corrects Auto Detect operation for JTAG chains
  • General Software Improvements.
  • Adds Font Size Controls.
  • Corrects Problem With Ribbon Bar Menu For Some Screen Resolution Sizes.
1.091Corrects problem showing TAP test results
Corrects settings correlations between Circuit and Controller docking panels
1.082Updates save and restore TCK rate settings in Controllers docking panel.
Enables Boundary Register Length measurement in TAP test when an IDCODE is not available in related BSDL file.
1.067Corrects intermittent problem when presenting results of Auto Detect operation.
1.066Upgrades connectivity check between multiple JTAG pins in multiple JTAG chain.
Verifies that Auto Detect works with multiple chains.
1.064Fixes for “check license” message and circuit pin display problem.

onTAP Download

And Update Requests

onTAP Video Tutorials

circuit trace Download

And Update Requests

circuit trace Video Tutorials

JTAG STIL Player Download

Knowledge Base

Basic Boundary Scan Building Blocks


Boundary Scan FAQs

A Look at BSDL

Boundary Scan
Description Language

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