Macraigor Systems LLC


Compatible Operating Systems: Windows, Linux (Red Hat 7.2 – 9, Fedora Core 2/3/4)
Compatible Software: From Macraigor … Full Eclipse / GNU toolsets with examples (free download), Flash Programmer, OCD Commander Debugger, J-SCAN Boundary Scan debugger and analyzer, and more. Third party support for various debuggers also available.

The usb2Demon is a JTAG interface used in the design, debug, and programming of microprocessor and microcontroller based embedded systems. One side of the usb2Demon interfaces to a USB 1.1 or USB 2.0 port of a host PC and the other side connects to the JTAG port on the target system. As with all Macraigor interface devices, the usb2Demon can simultaneously debug up to 255 devices on a single scan chain. In addition, up to 16 usb2Demons can be connected to a single host machine. The usb2Demon supports configurable JTAG clock rates up to 20 MHz, is compatible with Windows and Linux hosts and is fully compatible with all of Macraigor’s software tools, including our free OCD Commander debugger, free GNU toolkit distributions, OCD Flash Programmer application, and our production line test tools. In addition, several commercial third-party debuggers can interface to the usb2Demon. For a list of supported processors and compatible debuggers, please visit our web site.


  • Easy plug-and-play setup
  • Very fast download and debug speeds
  • No need for external power supplies
  • Support for multiple devices on a single host




  • Supports USB 1.1 and 2.0
  • Automatically senses target voltages down to 1.8V
  • Up to 255 devices per scan chain supported
  • Up to 16 usb2Demons per host
  • JTAG clock rates up to 20 MHz




Automotive; Communications; Consumer Electronics; Digital Security; Surveillance; Enterprise Infrastucture Security; In-vehicle Infotainment; Industrial; Interactive Client; Military, Aerospace, and Government; Print Imaging; Storage; Wireless Telecommunications Infrastructure

General Member of the Intel® Communications Alliance

Contact Information

Macraigor Systems LLC

227 Cypress Street
Suite 1
Brookline, MA, 02445

tele: 617.739.8693
fax: 617.739.8694


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