UART capablities on camera firmware?

[davefes]

I have been using your latest camera firmware on several projects and thought I use it on a new project. I need the camera to talk to a STM32F411 WeAct Blackpill and concluded that SPI slave was not easy to do in Arduino (STM32Duino).

So, I thought I would use machine.UART. I checked that it existed and what functionality it appeared to have.

Calling;
UART1 = UART(1,9600) crashes
UART2 = UART(2,9600) NotImplementedError: opcode
UART3 = UART(3,9600) UART(3) does not exist

Am I out of luck?

Thanks,
Dave