User manual

JUMPER DESCRIPTION:

R-T Connects JTAG TRST signal to STM32F103RBT6 RESET

Default state closed (shorted)

BAT_E Connects 3.3V to STM32F103RBT6 Vbat pin.1

Default state closed (shorten), Vbat signal is also available to BAT_3V

connector, so if you want to connect external backup battery to the

STM32F103RBT6 this jumper should be opened (unshorted) and the

external battery to be connected to BAT_3V connector(see connector

description for BAT_3V connector pining.).VBAT accept 2 - 3.6V.

USBP-E Connects USB power supply to STM32F103RBT6 pin.24 PC4/ADC14 and

allow to detect if the board is connected to USB host.

Default state closed (shorten)

LED-E Connects STATUS LED to STM32F103RBT6 pin.53 PC12

Default state closed (shorten)

BOOT0, BOOT1 boot sequence select

B1_H/B1_L (Boot1_High/Boot1_Low)

B0_H/B0_L (Boot0_High/Boot0_Low)

B1_H/B1_L

Default position: Boot1 is log. 0

B0_H/B0_L

Boot0 is log. 0

CAN0_T Connect 120 Ohm terminator between CAN_L and CAN_H

busses.

Default state closed (shorten)

CNTRL/HS

1. CNTRL/HS jumper is open

10 KOhm resistor is connected to slope control pin of SN65HVD230 CAN

driver i.e. 15V/uS driver output signal slop.