Debug COM Port Interface

The debug interface is enabled by default and can be disabled by placing a jumper on connector J19. The UART signals can be accessed via the mikroBUS1 connector or via the integrated USB-UART bridge provided by J-Link-OB.

Figure 1. Debug COM Port Interface

The table below describes the COM port debug interface signals.

Table 1. Debug COM Port PIOs Signal Descriptions
PIO Mnemonic Shared Signal Description
PB26 URXD0 DEBUG Receive data
PB27 UTXD0 DEBUG Transmit data