User manual

JUMPER DESCRIPTION:
R-T connects JTAG TRST signal to STM32F103RBT6 RESET
Default state closed (shorted)
VBAT connects 3.3V to STM32F103RBT6 Vbat pin.1
Default state closed (shorten), Vbat signal is also available to EXT1-23, 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 EXT1-23 pin.
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)
Default position:
Boot1 is log. 0
Boot0 is log. 0
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