Status Indicators
• LD2 LED indicates the 3.3 V supply voltage presence.
• LD1 LED is connected to PB9.
Connectors
• 20-pin Cortex Debug + ETM Connector
• USB
Placed on the target board for CPU communication purposes only, cannot to be used to power the
target board.
USB
CPU pin number
122
123
120
• ETH
Not populated.
Push button
• SW2 - RESET
Jumpers
• J2 – boot 0
• J3 – boot 1
For using different boot modes, follow microcontroller reference manual.
© iSYSTEM, March 2021
CPU pin description
PA11
PA12
PA9
Connector pin name
USB_DM
USB_DP
USBPWR
3/8
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