I need to simulate 3 chips that are on one board and that talk to each other through UART, SPI and GPIO. The chips verify each other's work, and I need to be able to observe this communication for debugging. Can something like this be done in QEMU?
My first thought was to create the chip then create a board/machine with 1 chip, and run 3 instances of QEMU on the host and have them talk to each other via the host (/dev/uart7 for example) but that doesn't seem to be possible. It seems QEMU cannot output 8 UARTS (I can't get more than 1) or any GPIOs. Is that correct? Not sure about SPIs either. My next thought was to make 1 board with all three chips, but have some way to sniff the UARTs/SPIs/GPIOs between chips. Is that possible in QEMU? Thank you! Seth
