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FW version: Stable

Why do I get "Could not discover any node(s)"?

This can indicate several problems. Most typically, the connection interface is working, but the problem is somewhere else.

Could not discover any node(s)

Hardware problems​

  • Double-check the wiring.
  • Only USB will work without a power supply. Other interfaces need the device to be powered.
  • For the CAN bus, check if the termination resistors are in place and the bus is properly terminated.
  • For USB, do not use a USB hub. We spotted connection problems with some USB hubs (mostly during the firmware update).

Software (settings) problems​

Improper address​

The most widespread problem is that the device and target addresses in the Launchpad options differ. Please ensure your target address is the same as the device address.

Default addresses for our device
  • Controller: 0
  • Display: 6
  • BMS: 4
tip

You can also set address to -1. This is a broadcast option. The device will respond to any address. But the communication may fail for tools that require one-to-one session ('term', 'scope', 'srm') if more devices are present on the bus.

launchpad

Communication speed mismatch​

Most typical case is for CAN bus, where the speed is adjustable. Please ensure that the device speed is the same as the settings in the Launchpad options.

CAN speed

The most common CAN speed
tip

If you are not sure about the CAN / UART setting in the device, connect to the device via USB and check the settings: How to read CAN speed settings

It is a comma!

Sometimes, there is a typo in the option bracket. Please ensure the arguments are divided by a comma "," and not by a dot "."