Past Meetup

Automating JTAG Header Pinout Discovery

This Meetup is past

10 people went


So you break the seal, void the warranty, crack the case. Now you're looking at a crowded circuit board wondering if you really need to lift those pins to access the JTAG or pop the flash to figure out the next step.

But what about all those pads of pins, or maybe a header? Working through the pins with an oscilloscope is certainly possible, but time consuming.

This talk will present the software and approach for using an MSP430 launchpad board to figure out the pins for you. The provided code uses Processing and the Wire library, just like the Arduino.

Attend this talk to learn what a JTAG header is, why figuring out the pins isn't trivial, and how to speed up a manual process using an inexpensive development board and easy to use software.


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