Hello,

I recently purchased USB2CAN - ED000225, but I couldn't make it to work both on Linux\Windows 7 OS.

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#### Windows 7_x64
- I update the firmware to v1.5, using the Dfuse Demo v 3.0.3 -> target 00: Upgrade successful
- Pushed the verify button - the program defuse stop working (windows error massege)
- Opened through Dfuse 2.2.1, pushed verify button - verify successful
- when push the Leave DFU mode this massage appears - .
- then I just re-plug the cable and Windows recognize it as USB2CAN

I have two boards one is Olimex lpc-p11c24 another LPCXpresso LPC11C24, both has the same processors. And both are programmed to send\receive the CAN massages and blink whenever there is an activity on CAN bus. The integrity was checked by connecting these 2 boards via CAN - LED's are blinking, massages send and receives.
- open TestApp, the screen looks like that - , open the port -> the status LED on USB2CAN solid green; push Send Msg -> status LED fast blinking green. The connected lpc board doens't response.
- Change the speed to 1 MB (as I understood it's the number after serial #ED) - , result is the same: open the port -> the status LED on USB2CAN solid green; push Send Msg -> status LED fast blinking green. The connected lpc board doens't response.

Here are the pictures of connections on both boards, just to exclude this issue:



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#### Linux, Kubuntu
uname -a
3.16.0-31-generic #41-Ubuntu SMP Tue Feb 10 15:24:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

followed the steps here - . When connect USB2CAN, status LED red solid; after command ip link set can0 up type can bitrate 1000000 sample-point 0.875 -> green solid, but doesn't react on connection to LPC11c24 boards (these boards also doen't see any acivity on bus)

ifconfig -a
can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

candump can0
nothing displayed.
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It seams that your product doens't work, please help me with this issue I need a CANbus monitor as fast as possible.
Thank you in advance.

Hello,
for can bus speed more than 125 kbit need to attach terminators 120R to both sides.
Or try to decrease bus speed down to 125kbit.

On one of the board, the USB2CAN is connected directly by connector so the distance between nodes is extremely small - it shouldn't be a reason.

Anyway, I've added another terminator and reduce the sped to 125 kbit, but the result is the same.

I also tried on Windows 8, and I re-flash both EEPROM image (ED000225) and firmware image v1.5. Result is the same.

I start to think that there might be a defect in my USB2CAN, cause one of the guy I'm working with remotely has completely the same setup as me (the same board, working on 1Mbit without extra terminator) has no problems with his USB2CAN module. Is there a way to check somehow the work-ability of my module?

It seems that you are using wrong usb2can pinout.The first pin is on top and left.
http://fs91.www.ex.ua/get/297789659917/ ... 113901.jpg

Yes, thank you!
But from the schematics here it's not explicit.
And I have this board on which the CAN connector is depicted and it's logically that you should connect it from the top, where the connector is outlined; and it also make a delusion that pins are reverted.