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Model JI-300
USB to I2C Adapter
USB to I2C Adapter
| Features |
Programmable SCL clock frequency from 255Hz to 3.8Mhz (20nS steps)
Variable bus voltage from 1.50V to 5.25V (10mV steps)
Supports Master and multi-Master operation
Software selectable bus pull-up resistors (16 values including open)
USB 2.0 host interface
Switched target bus voltage at connector
Low I2C bus capacitance (<40pF typ.)
Easy to use Graphical User Interface (GUI)
- I2C Message Controller
- - Message execution status - Success / Failure w/ details
- EEPROM Programming Utility
- - Programming file formats include: Binary, Intel HEX, Motorola S-record
Create custom software applications using either direct or Virtual COM Port
(VCP) drivers. Programming requires no in-depth knowledge of USB!
(VCP) drivers. Programming requires no in-depth knowledge of USB!
Includes everything needed to get started – I2C Adapter unit, I2C cable, USB
cable, and a CD-ROM containing application software and user’s manual.
cable, and a CD-ROM containing application software and user’s manual.
| Applications |
Firmware debugging and hardware troubleshooting.
Production-line testing.
Equipment repair and diagnostics.
GUI Screen Shots
Documents and Downloads
Software Driver Links
Questions or comments? Please email or call:
or Ph: 949-716-0154
Jupiter Instruments www.jupiteri.com
Updated on 2/8/12
The JI-300 is a versatile, easy to use PC hosted adapter used to drive I2C communications
to/from a target device. The desktop unit can be configured to interface a variety of I2C
networks. Bus parameters such as clock frequency, duty-cycle, setup and hold times, bus
voltage, and pull-up resistor values can be varied. JI-300’s diagnostic features including
“excessive clock-stretch”, “bus-not-free”, and “bus contention” monitoring, as well as status
reporting at the conclusion of each message transaction simplifies I2C trouble-shooting. A
Windows software application manages the setup and control of the instrument.
Communications and unit power is provided via a USB 2.0 connection.
to/from a target device. The desktop unit can be configured to interface a variety of I2C
networks. Bus parameters such as clock frequency, duty-cycle, setup and hold times, bus
voltage, and pull-up resistor values can be varied. JI-300’s diagnostic features including
“excessive clock-stretch”, “bus-not-free”, and “bus contention” monitoring, as well as status
reporting at the conclusion of each message transaction simplifies I2C trouble-shooting. A
Windows software application manages the setup and control of the instrument.
Communications and unit power is provided via a USB 2.0 connection.
USB to I2C Adapter
- - Single-step execution option
- - Message looping
Date
Version
1.4
9/25/09
3/2/11
1.3
Documents
Date
Version
4.1.2
8/31/11
Software
Date
Version
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3/2/11
Programming Examples
1.5
1/27/12
2.2
9/05/08
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3/2/11
OS win2000/WinXP*/WinVista
* Requires installation of the .NET Framework
OS win2000/WinXP*/WinVista/Win7
2/16/11
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| New Feature! |
| New Version |
| Jupiter Instruments |
| Unique instrumentation products |
Model JI-300