XOT
那這樣的話可能連IDE都要重新寫一個喔
try move the ```py except KeyboardInterrupt: mqtt_client.disconnect() ``` to the `def mqtt_client():` inside?
This Two port is existed when I plugged it to computer. (`/dev/ttyUSB0`, `/dev/ttyUSB1`) 
@tcal-x Thanks your helping! Next time I will try.
@tcal-x I Found the problem! The CFU Playground Command `make prog` just **only** flash bitstream into sram, but LiteX needs bios/bootloader. In basic LiteX, Type `litex_boards.targets. --flash` can flash bitstream...
Im simply write some note to record my operation that can successfully run CFU In my tang nano 9k, hope It can help! https://hackmd.io/@minexo79/rkuYE0FUq