BusPro-S SPI Bus Host Adapter

High Speed Multi-IO SPI Host, Debugger, and Programmer

Serial Peripheral Interface (SPI) bus applications can be deceivingly complex due an ever -growing number of modes and increasing performance requirements. New serial bus designs require debug equipment with multi-IO support and high speed capabilities at an affordable price.

The BusPro-S High-Speed Multi-IO SPI Host is designed with speed, versatility, and value in mind. Featuring a 60 MHz clock rate with up to 200 Mb/s throughput and support for standard, dual, quad, and 3-wire modes, the BusPro-S is the right tool for all SPI debugging applications—present and beyond.


  • High-performance SPI host with multi-IO interface.
  • Four IO modes including standard, 3-wire, dual, and quad.
  • User-programmable SCK rate up to 60 MHz in enhanced mode.
  • Up to 200 Mb/s throughput in enhanced mode for fast programming speed.

  • Selectable interface voltage of 1.8V, 2.5V, and 3.3V.

  • Configurable bit order, slave select polarity, and SPI mode.

  • Eight independent slave select signals for designs with multiple slave devices.

  • Powerful debugger with command script editor.

  • In-System Programming (ISP) of SPI serial Flash and EEPROMs.

  • Detailed transaction log with time stamp and data recording.

  • High-speed USB 2.0 interface.

  • Robust and portable bus-powered USB device, no external power supply required.

  • Royalty-free software application programming interface (API).

  • SPI Exerciser software works with Microsoft Windows 7, Windows 8/8.1 and Windows 10.

High Speed SPI Debugger and Programmer

The BusPro-S is a value-oriented, high speed Serial Peripheral Interface (SPI) debugging and programming tool. The USB-based desktop instrument allows engineers to save precious development time by providing low level control of SPI buses for the generation of SPI traffic and for programming SPI memory. The BusPro-S includes two modes of operation: standard mode for simple SPI buses and enhanced/multi-IO mode for interfacing with the latest high-speed SPI Flash and peripheral devices.

BusPro-S 20-pin Connector Pin Definitions
BusPro-S 20-pin Connector Pin Definitions

Intuitive Software Interface

The included SPI Exerciser software features two modules.

The Debugger module features a command script interface with individual tabs for maintaining multiple command sessions. The transaction log maintains a list of all activity performed by the BusPro-S. The debugger interface features easy access to both standard and enhanced modes for maximum flexibility when debugging complex systems.

The Programmer module features a library of common Flash and EEPROM device models for fast, convenient in-system erase, program, verify, and read operations for both standard and multi-IO components.

Powerful API

The BusPro-S includes an application programming interface (API) in the form of a 32-bit Windows DLL. All major host functions are available through the API for convenient integration into third party applications and for use with popular lab and test executive software suites.

BusPro-S Pin Assignments

BusPro-S Pin Assignments
BusPro-S Pin Assignments

BusPro-S Hardware Specifications

BusPro-S Hardware Specifications

BusPro S final 300x157 - BusPro-S SPI Host Adapter

BusPro-S Tutorial

The BusPro-S SPI Tutorial provides an introduction to the SPI bus, including basic bus options, common transaction formats, and example SPI Exerciser command code.


SPI Protocol Hardware Debug

Generate SPI bus traffic and interface with peripheral components.

In-System Programming

Read, erase, program, and verify SPI Flash Memories and EEPROMs within the system using the SPI interface.


  • Save time and effort at the repair station by visually identifying probable fault.

  • Decrease expertise requirements with easy-to-read, graphical fault indicators based on advanced boundary-scan diagnostics.

Ordering Information

Part Number 90200

  • BusPro-S with SPI Exerciser software. Includes USB 2.0 cable and 10 premium 6” jumper wires

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