I have a question regarding the switch board v3; I can't connect to it, and a yellow indicator is flashing—I can't find out what that means.
How have you wired your board? Are you trying to connect using the ECU Master USB-CAN?
Hi!
The switchboard is wired as shown in the picture; the extra box is the CAN bus connection for my dash display.
I’ve measured the voltage coming from the PMU—12.5V—so everything is fine there, and I’ve checked the CAN bus resistance on the circuit board.It reads 60 ohms, and I have perfect contact with my display, which is connected to CAN 2.
I’m using ECUMaster’s USB-to-CANbus adapter, which works fine, but I can’t establish a connection with the switch.
I’ve set the speed to 500, as that is what the display—and the ECU—operate at. I’ve also run tests between the ECU Black and the PMU—specifically by controlling the cooling fan—and everything is working fine there.
My next test will be to desolder the CAN bus and build a test rig so I can connect it directly to a USB-CAN bus adapter.
So, just to make sure I’m understanding correctly: in Light Client, you’re seeing CAN frames from both the ECU and ADU, but not from the switchboard?
If that’s the case, and you have it wired as shown in the image above, you won’t be able to see the switchboard because the USB-to-CAN is connected to a different bus.
Do you have the USB-to-CAN connected to the same CAN bus as the switchboard? CAN 1 and CAN 2 are separate buses, and they can operate at different baud rates.
Hi!
Just as you wrote, I have connected the USB-to-CAN bus adapter to CAN 1.
I hadn't realized that it wasn't possible to see CAN 2 to CAN 1.
I need to order a new RS232 connector so I can make an additional connection for the USB/CAN bus adapter.
With the "Light Client," I cannot see my display or ECU, but it receives information from the ECU Black, so it works. I can also control outputs from the ECU to the PMU via CAN 2.
I’ll get back to you once the new connector arrives.
I must have missed a detail in the instructions—that you need two USB/CAN bus inputs to read CAN bus data.
Thanks for the help so far!
Yep, that’s was the issue, every device you want to be able to see on ADU, PMU or LightClient softwares needs to be wired on the same bus.
Since PMU and ADU can only be accessed using CAN 1 on both devices, I usually wire all ecu master devices on the same bus (CAN 1). I only wire on different buses if I need one specific device operating on a different speed than 1000 kbps (for example something wired on the bus that needs to operate on 500k).
If you need some help / advise on how to do it, let us know.