Setting Up
UART Serial Console
The Megrez board includes a reserved UART debugging serial port, which can be used to view system boot logs or log in to the console after the system has booted to execute terminal commands.
USB to Serial Cable
The pin definitions of a common USB to TTL serial cable are as follows:
Connecting the Serial Port
The debugging serial port operates at a 3.3V level. As shown in the diagram below, connect the USB to TTL serial module, but do not connect the red wire.
| Milk-V Megrez | <---> | USB to TTL Cable |
|---|---|---|
| GND | <---> | Black wire |
| RX | <---> | Green wire (TX) |
| TX | <---> | White wire (RX) |
The default serial port parameters for Megrez are as follows:
