Specifications

Development Systems Ordering Guide
DS30177T-page 86 © 2005 Microchip Technology Inc.
MCP250XX CAN I/O Expander Developer’s Kit
The MCP250XX CAN I/O Expander Developer’s Kit
includes everything needed to create a CAN-based
system using Microchip’s CAN I/O expander family. It
can be used to evaluate, demonstrate and develop
CAN nodes using these CAN I/O expanders. The
Demonstration mode has an MCP25050 that is
configured prior to shipping and is programmed to
manipulate analog inputs via potentiometers, PWM
outputs via a piezoelectric buzzer and an incandescent
lamp, and digital inputs via push button switches. CAN
messages can be sent and received between the
master node and the demonstration node via the
PC-user interface or via the input/output functionality
discussed above. Users can also set up a watch
window to display the message traffic as they
manipulate the inputs and outputs. In this manner, the
users can see a working network being demonstrated
with one of the nodes being an MCP25050 CAN I/O
expander device.
Another function of the developer’s kit is that the PC,
with included software, can be used to emulate an
MCP250XX device. This mode is used to manipulate
the registers of the MCP250XX devices in order to
evaluate all of the different functionality and
configurations of the device family. After users are
comfortable with a configuration, they can then
prototype their own CAN node. An unconfigured
MCP250XX device is supplied with prototyping area,
also included on the target board. A header is provided
to enable oscilloscope access to the I/O pins for
development and troubleshooting. Once prototyping is
complete, the kit can be used to program up the device
configuration in much the same manner that Microchip
PICmicro
®
MCUs are programmed.
Features
• Speeds understanding of CAN I/O expander family
• Provides ability to prototype user-defined CAN node
• Enables programming of device default
configuration directly from developer’s kit
• Allows connection of external CAN networks
• Software watch window can be used as a basic CAN
bus monitor
MCP250XX CAN I/O Expander
Developer’s Kit Contents
• Target Board with Three CAN Nodes Connected
via a CAN Bus
• MCP250XX Product Samples
• PC Software to Interface to the Target Board
• PC Parallel Port Interface Cable
• Power Supply
• Complete Documentation
Ordering Information:
DV250501 MCP250XX CAN I/O Expander Developer’s Kit
DS51260
“MCP25020/25025/25050/25055 CAN I/O Expanders Developer’s Kit Product Overview”
(Available at www.microchip.com)