I have a project using BLE as a central on an nRF5340 to connect to several devices. For factory test I am being asked to implement something that can be used in the factory to confirm good electrical connections from the nRF5340 to the chip antenna.
Setting up a peripheral to mimic one of the other device in a test gig is not an optimal solution for a factor line test. The ideal case would be a shell test command that would send a vendor (Nordic) specific command to the stack is to transmit a CW at mid band that can then sniff with test equipment to confirm adequate performance. If not CW then modulated would be okay.
Is there such a vendor specific command for the Nordic stack? If not, what method do the Nordic engineers suggest for factory testing?