3.1 On-Board Connectors

Table 3-1. OpenOCD Debug Probe Interface Connectors
ConnectorTypeInterfaces with

J1

2x5 pin IDC male header

Target SPI + I²C

J2

2x10 pin IDC female header with orientation notch

Target JTAG

J3

1x6 pin IDC male header

Target UART

J4

USB 2.0 Type-C

Host PC

J5

1x2 pin IDC male header

Jumper for optional pull-up on I²C clock

J6

1x2 pin IDC male header

Jumper for optional pull-up on I²C data