sparkfun / can-bus_shield

SparkFun CAN-Bus Shield

SparkFun CAN-BUS Shield (DEV-13262)

This shield give the Arduino CAN-BUS capability.

Repository Contents

• /Hardware - Eagle design files (.brd, .sch)
• /Libraries - Libraries for use with the CAN-Bus Shield.
• /Production - Production panel files (.brd)

Documentation

• Library - Arduino library for the CAN-Bus.
• Hookup Guide - Basic hookup guide for the CAN-Bus.
• SparkFun Fritzing repo - Fritzing diagrams for SparkFun products.
• SparkFun 3D Model repo - 3D models of SparkFun products.

Product Versions

• DEV-13262- Version 1.3. Currently live.
• DEV-10039- Version 1.2. Retired.

GitHub Version History

• V1.3 - This is version 1.3 of the shield. Currently live.
• V1.2 - This is version 1.2 of the shield. Retired

License Information

This product is open source!

Please review the LICENSE.md file for license information.

If you have any questions or concerns on licensing, please contact [email protected].

Distributed as-is; no warranty is given.

• Your friends at SparkFun.

This is a collaboration with SK Pang Electronics. A portion of each sale goes back to them for product support and continued development.

can-bus_shield's Issues

board dimension needs to be 0.008 instead of 0.01

Was soll diese Zeile bezwecken?

` // load CNF1..3 Register

RESET(MCP2515_CS);

spi_putc(SPI_WRITE);

spi_putc(CNF3);

/* spi_putc((1<<PHSEG21)); // Bitrate 125 kbps at 16 MHz

spi_putc((1<<BTLMODE)|(1<<PHSEG11));

spi_putc((1<<BRP2)|(1<<BRP1)|(1<<BRP0));

*/

/*

spi_putc((1<<PHSEG21));		// Bitrate 250 kbps at 16 MHz

spi_putc((1<<BTLMODE)|(1<<PHSEG11));

spi_putc((1<<BRP1)|(1<<BRP0));

*/

spi_putc((1<<PHSEG21));		// Bitrate 250 kbps at 16 MHz

spi_putc((1<<BTLMODE)|(1<<PHSEG11));

//spi_putc(1<<BRP0);

spi_putc(speed);`

"spi_putc(speed)" Was hat das Register was dort beschrieben wird mit Speed zu tun? Verstehe das nicht so ganz.. Das ist doch das Register für die Interrupts?!

One 90 degree angle in bottom trace near DB9

VCC range not clearly labeled in sch

Micro SD Card Socket

Hey Toni, this is pretty much my fault. The updated micro sd footprint is the Micro SD 1:1

Ground pour not limited under hex converter and MCP2515 ICs

9-pin connector pinout

Thanks for the work on this board - certainly worth a beer! I'm just trying to get it to work and noticed that the pinout on the 9-way connector appears to be non-standard. Every CAN bus I've ever worked with has this configuration:
pin 2: CAN-Low (CAN-)
pin 3: GND (Ground) - NOT ALWAYS USED
pin 7: CAN-High (CAN+)
pin 9: CAN V+ (Power) - NOT ALWAYS USED
I don't think there is anything in the ISO standard, but it's on the Wiki page for CAN so it must be true :)
It's not a huge issue - I can re-wire my 9-pin connector, but it does make the board harder to use with other CAN products (e.g. the ones from Kvaser, Softing, Vektor, ATI etc) which all use pins 2 & 7. If the board ever does get re-spun it might be something to put on the to-do list.

Shield on Arduino Mega

Hi, I'm trying to connect this shield to an Arduino Mega. Unfortunately it always result in a "Can't init CAN" message in the Serial monitor. I tried bending the SPI connectors (10-13) slightly to the side and connected wires from 50-53 on the Mega to 10-13 on the shield, but it still doesn't work. Any ideas?
Someone tried this before as succeeded, but probably with an other version of the lib, since I can't finde the file he mentioned anymore: http://forum.arduino.cc/index.php?topic=123367.0

Thank for the help. Best regards

Edit: Merry Christmas ;)

Two nets on U5 need to be drawn out one grid space

Fix page settings for schematic

-Has the /1, /2 on pin flags

Terminating Resistor

Hi,

I just got my Shield delivered, and am trying to hook it up to an esp32, but with no success, aside from the obvious software meddling I need to do to get things going, I was also wondering if the shield has a 120ohm resistor between CANH and CANL already on the board, or if we are meant to place one externally if termination is needed. I've looked through the schematics and it doesn't seem that there is one in there, but I doubt that sparkfun did not consider the terminating resistor, so any pointers here would be much appreciated.

Thanks,
Adamos

Test points on TX ann RX lines between ICs should use larger test point package

The vias used for current test points are too small and the stop mask circles drawn on bottom layer are too small. Larger "3X5" test point package should work.

Errors on Arduino Due but not other Arduino. Canbus.cpp:16:20: fatal error: avr/io.h: No such file or directory

Help!! I have two Sparkfun CanBus shields and both work great on Uno, nano, etc. But when I try to compile on a Due, I get this error:

Canbus.cpp:16:20: fatal error: avr/io.h: No such file or directory

I've tried to narrow down what is causing the problem, but I cant. All of the example code works for the Due, plus a newer FASTLed library also works on Due after it was updated to work with Due, since it showed the same errors originally. I dont know what changes were made though.

Thanks!

Can Bus Ecu Demo

I"ve been trying to hook it up to my car it is giving me random weird values like 1 or 255 for Engine RPM and 191 or 255 for Vehicle speed. Any idea what maybe the source of error ?
@ToniCorinne

PEDS1CAN IC ground pin not connected in sch/routed in brd

Dashed grey lines needed to separate parts of sch

version number needed in copper

DRC errors need correction or approval

C4 needs name and value on tnames and tvalues in brd

Need measurements on layer 47

Silk ratio in brd for SJ4, SJ5 and SJ6 should be reduced to 15%

SJ4, SJ5, and SJ6 jumpers not labeled with purpose/instructions in sch

VCC trace section not increased to new trace width.

Small length near left via under large MCP IC

U5 missing name and value data in sch