DV251001 Microchip Technology, DV251001 Datasheet - Page 41

• Manufacturer Part Number: DV251001
• Description: KIT DEVELOPMENT CAN MCP2510
• Manufacturer: Microchip Technology

Specifications of DV251001

• Main Purpose: Interface, CAN Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP2510, MCP2515
• Primary Attributes: Stand alone CAN Controller with SPI
• Silicon Manufacturer: Microchip
• Application Sub Type: CAN
• Kit Application Type: Interface
• Silicon Core Number: MCP2510, MCP2515
• Kit Contents: Board Cable Power Supply CD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Lead Free Status / RoHS Status: na, Lead free / RoHS Compliant
• Other names: DV251001R; DV251001R

M
B.1
B.2
 2003 Microchip Technology Inc.
INTRODUCTION
FAQS
Appendix B. FAQs on Configuring the MCP2515
This section answers some frequently asked questions concerning the configuration of
the MCP2515 to assist those who are new to the device.
1. Why doesn’t the development tool successfully communicate on an
TABLE B-1:
2. The node is acknowledging messages in the Basic template but not
The MCP2515 is off the bus
(not in Normal mode).
The LPT port is not configured
correctly.
The bus rate is not set to match the
bus.
Oscillator frequency not set to match
hardware (F
formula).
Board is not connected to the
external bus.
external bus?
There are several possible reasons why this is the case. The following are the
most common problems:
displaying them.
The MCP2515 filters are not matching the incoming messages. This can occur
because the Reset MCP2515 on Open is deselected, causing the old register
contents (masks and filters) to remain unchanged when switching templates.
Press reset, or select the Reset MCP2515 on Open box and reopen the
template.
OSC
Condition
is required in bit rate
COMMON BUS COMMUNICATION PROBLEMS
MCP2515 DEVELOPMENT KIT
Basic template – Go on Bus button in the
“Bus Status” window.
Make sure LPT address is correct (
MCP2515.
Basic template – Set the bus rate in the Bus
Status window.
Register template – change CNF registers.
Set the oscillator frequency
(
Connect to the external bus using the DB9
labeled CAN.
Pinouts: CANH – pin 7, CANL – pin 2.
Options > MCP2515...
).
Fix
USER’S GUIDE
).
Options >
DS51416A-page 37