STLINK-V3MODS and STLINK-V3MINI functional description
UM2502
16/28
UM2502 Rev 2
Bridge SPI
SPI signals are available on CN2 pins 7, 14, 23, and 25.
Bridge I
2
C
I
2
C signals are available on CN2 pins 16 and 17. It is necessary to add externally 680
Ω
pull-up resistors on the host application board.
Bridge CAN
CAN logic signals (Rx/Tx) are available on CN2 pins 9 and 10, they may be used as input
for an external CAN transceiver.
Bridge UART
UART signals with hardware flow control (CTS/RTS) are available on MB1467 CN2 pins 1,
2, 3, and 11. They need dedicated firmware to be programmed on the main module before
being used. Without this firmware, the Virtual COM port function must be used instead (no
hardware flow control).
Bridge GPIOs
Four GPIO signals are available on CN2 pins 18 and 21. Basic management is provided by
the public ST bridge software interface.
5.5.6 LEDs
Power LED: Red light indicates that 5 V is enabled.
COM LED: Refer to the technical note
Overview of ST-LINK derivatives
(TN1235) for
details.
Fault LED: Indicates USB overcurrent request.