3.19.2 OpenOCD (FTDI) JTAG and Console Port Debug Interface

The SAM9X75 cHybrid features an On-Chip Debugger (OCD), FT4232HQ (U7), which interfaces with the MPU’s default UART console port and JTAG connection. The UART pins are listed below, while JTAG uses the dedicated pin functions of the MPU. A USB Type-C® connector is used to communicate with the host.

The following figure shows the OpenOCD debug interface.

Figure 3-26. OpenOCD Debug Interface

The following table shows the serial debug (console port) signal descriptions.

Table 3-14. Serial Debug COM Port Signal Description
PIOSignal NameSignal Description
PA26DBGU_RXUART receive data
PA27DBGU_TXUART transmit data