Is the purpose of the Interface MCU on the nrf7002dk to act as a programmer for the main nrf5340 MCU?
Is there anything preventing the use of the secondary USB port (the one labeled "nRF USB") to program the main nrf5340 MCU? What is this USB port for?
When designing a custom PCB with both the nrf5340 and nrf7002, can the Interface MCU be omitted from the PCB? If so, to program the main nrf5340 MCU, could we use an nrf7002dk as a programmer that connects to the custom PCB?
I also see in the nrf7002dk schematic that the primary connections between the Interface MCU and the main nrf5340 MCU are VCOM0, VCOM1, and SWD3. Are all three of these necessary to program the main nrf5340 MCU? Or could just the SWD3 be used (and we can remove the VCOM0 and VCOM1 connections)?
Final question--can the VBUS pin on the main nrf5340 MCU just be grounded if the "nRF USB" port is not used?
Thank you, and please let me know if any of those questions were not clear!
