Part List
- Soldering Iron: I had a cheap 30W iron that came together with RadioShack kit, it is worthless!
- Buy quality soldering gun and make yourself a fine copper tip out of 12 gauge copper wire.
- Wire 24 gauge; 20 feet - I did not find any standard for CAN bus colors, in fact I have seen the same manufacturer using different colors in different products.
- 2x Resistors 120 Ohm (brown, red, brown)
- several DB9 connectors both male and female so you have plenty of connection points to your CAN bus (sensors, Serial-to-USB, etc.)
When you you go thru dozens of resistors, it is much faster to find them by COLOR, then connecting to multimeter.
Wiring CANUSB.com s/n P397 USB to CAN dongle
Fortunately this part has pretty good documentation about how to wire it
PIN #2 white - CAN_L PIN #7 green - CAN_H PIN #1 not connected red - 3.3V DC PIN #6 not connected black - ground
When you choose pins make sure you look at the MALE plug from user end, not wires end, they should be marked.
Wiring iMX.6 board
The iMX.6 MicroComputer has a 3 pin CAN bus socket that can be used with optional plug part featuring following cables:- brown
- red
- orange
FlexCAN1 module is implementing full CAN specification 2.0b (11/29bit IDs @ 1Mb/s)
- pin#: X2A4, Signal: X_CAN0_TXD, ST: O, transmit
- pin#: X2A5, Signal: X_CAN0_RXD; ST: I, receive
- pin#: X2A7, Signal: 3.3V reference voltage;
Unfortunately it does not tell the ORDER, or COLOR of the wires.
I could not find anything online, so it will be a trial and error. I used an easy screw on connector just so it is easy to switch polarity.
Here is an image of finished can bus:
Here is an image of finished can bus:
- connects to i.MX6 board
- it runs over 2 pairs of green/white wire
- ends with DB9 connectors (one male, one female)
- it is terminated with DB9 connectors that have 120 Ohm resistors across pins 2 and 7
