Taking a break

 We're taking a break moving shop and hope to be back soon. We hope to start shipping orders in Nov 2018. 

Bus Blaster v4 is an experimental, high-speed JTAG debugger from Dangerous Prototypes. Thanks to a reprogrammable buffer, a simple update over USB makes Bus Blaster compatible with many different JTAG debugger types in the most popular open source software.


  • Based on FT2232H with high-speed USB 2.0
  • Buffered interface works with 3.3volt to 1.8volt targets
  • Reprogrammable buffer is compatible with multiple debugger types
  • Compatible with 'jtagkey', 'KT-link' programmer settings in OpenOCD,
  • urJTAG, and more
  • ships with JTAGkey compatible buffer image pre-programmed
  • Should support Serial Wire Debug when available
  • Mini-CPLD development board: self programmable, extra CPLD pins to header
  • Open source (CC-BY-SA)

Updates in v4

This open source hardware and software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Bus Blaster v4

  • Brand: Dangerous Prototypes
  • Product Code: DANGPROTO-102990000
  • Reward Points: 44
  • Availability: Out Of Stock
  • £53.21

  • Ex Tax: £44.34
  • Price in reward points: 500

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