User Manual

CDriver User Guide 3

1 Overview

CDriver is an easy-to-use, open source tool for controlling I

C devices. It

works with Windows, Mac, and Linux, and has a built-in color screen that shows

a live dashboard of all the I

C activity. It uses a standard FTDI USB serial chip

to talk to the PC, so no special drivers need to be installed. The board includes

a separate 3.3 V supply with voltage and current monitoring.

1.1 Features

• Live display: shows you exactly what it’s doing all the time

• Supports all I

C features: 7- and 10-bit I

C addressing, clock stretching,

bus arbitration, and sustained I

C transfers at 400 and 100 kHz

• I

C pullups: programmable I

C pullup resistors, with automatic tuning

• USB voltage monitoring: USB line voltage monitor to detect supply

problems, to 0.01 V

• Target power monitoring: target device high-side current measurement,

to 5 mA

• Three I

C ports: three identical I

C ports, each with power and I

C sig-

nals

• Jumpers: three sets of high-quality color coded 100mm jumpers included

• 3.3 V output: output levels are 3.3 V, all are 5 V tolerant

• Sturdy componentry: uses an FTDI USB serial adapter, and Silicon

Labs automotive-grade EFM8 controller

• Open hardware: the design, ﬁrmware and all tools are under BSD li-

cense

• Flexible control: GUI, command-line, C/C++, and Python 2/3 host soft-

ware provided for Windows, Mac, and Linux