Open Source JTAG.

Affordable Magic.

Open Source JTAG.

Affordable Magic.

Jeff Probe - open source JTAG probe

Jeff Probe - open source JTAG probeJeff Probe - open source JTAG probe

A cost effective solution for in house debugging, the ability for customization, open source, and open hardware.

What's in the box?!

Jeff Probe, 1x JTAG cable, and 1x Serial Port cable

jeff probe plugged in

Open Source JTAG

jeff probe plugged in

It is able to control and examine the state of the target microprocessor using a JTAG or Serial Wire Debugging (SWD) port and on-chip debug logic provided by the microprocessor.

Jeff Probe - open source JTAG probe

  • Supported Target Voltages: 1.8V - 5V
  • Provides full debugging functionality, including: watchpoints, flash memory breakpoints, memory and register examination, flash memory programming, etc.
  • Connects to the target processor using the JTAG or Serial Wire Debug (SWD) interface.
  • Open Source - GPL 3.0
$15.95

Technical Specifications

Body

IR Transmitter: 35ft (line of sight)
IR Receiver: 38 KHz

Materials

Laser engraved stainless steel,
ABS black plastic

Packaging Dimensions

Length: 2.4 in
Width: 1 in
Height: 1.8 in
Weight: 1.6 oz

Packaging Contents

Jeff Probe
Cables

Jeff Probe - open source JTAG probe

Is the black magic probe better?

The BMP is all around better. I wont lie. You get what you pay for. It's going to be supported by the inventor himself. It's built with a Cortex m3, it's faster, and is guaranteed to run the bleeding edge software. If you can afford their hardware, support them.

Is there anything better with this over the black magic probe?

If you are debugging a chip with single wire JTAG, there is a supported hardware command to enable UART over the existing JTAG connector. That means, the single JTAG cable can be used for both debug, and the second UART connection. No need for two cables, simplifying connections, and using the JTAG cable, which has better reliability.

Can you please provide the source code? 

Yep, all code can be found on Github. https://github.com/flirc/blackmagic

What are the supported target voltages?

1.8-5V

What does it ship with?

The JTAG connector, the UART connector, the Black Magic Probe. It does not ship with a USB micro cable.

What is the firmware version?

We branched our code off public release v1.6 of the bmp. They are quite ahead of this now, but we wanted to use a stable branch. We will rebase on another branch soon, and will merge our master branch only when they release their new stable branch.

The LEDs are too bright.

Don't stare at them.

Do you plan on making a case for this?

Nah.

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