3.5.2 Serial Debug COM Port (FTDI)
The SAM9X75-Curiosity board features a dedicated serial port for debugging, accessible through header J35. Various interfaces can be used as a USB/Serial DBGU port bridge, such as the FTDI TTL-232R USB-to-TTL serial cable.
The following figure shows the serial debug COM port.
The following table shows the serial debug COM port signal description.
| PIO | Signal Name | Signal Description |
|---|---|---|
| PA26 | DBGU_RX | UART receive data |
| PA27 | DBGU_TX | UART transmit data |