AD/DA pins on Ultimate Dock

[ngc]

I ordered v2u and it has not reached to me. (in transit)

Ultimate Dock has ADC/DAC pins which are connected to GD32 MCU on dock.
In the factory, GD32's firmware is configured to perform USB-serial converter between host PC and MT7628N main SoC.

When we intend to use GD32's ADC/DAC pins from MT7628 SoC, can we do it?
If we can, please notice us how to do it.
Or, do we need modify GD32's firmware to add ADC/DAC access methods/protocols ?

If we cannot access ADC/DAC from MT76 SoC, it's not an IoT device.

[Vonger]

Yes, the GD32 connect to VoCore2 by TXD2/RXD2, you need to write new firmware to GD32, and read data from TXD2/RXD2. But same time you will not able to use CDC(USB2TTL) unless you copy back old firmware.

[ngc]

Thanks for reply. I understood.

But, ... why did you design to connect the other interface between MT76 and GD32, by SPI or I2C.
If you do so, GD32 can perform USB2TTL converter and AD/DA bridge, simultaneously.
I am disappointed.