OLIMEX STM32-P107 User Manual page 11

SMT jumpers:
The SMT jumpers are typically used for hardware measurements and hardware debugging. Please do not
attempt to change the jumpers if you lack the soldering skills required.
3.3V_MCU_E
Enable microcontroller 3.3V power supply
Default state is closed.
3.3V_E
Enable regulator VR2 (3.3V) - LM1117
Default state is closed.
3.3VA_E
Enables board 3.3V analog power supply.
Default state is closed.
3.3VA_MCU_E
Enables microcontroller 3.3V analog power supply.
Default state is closed.
GNDA_E
Enables board analog GND.
Default state is closed.
R-T
Connects RST to TRST
Default state is open.
INPUT/OUTPUT
Status LED1 (green) with name STAT1 connected to STM32F107 pin 63
(PC6/I2S2_MCK/TIM3_CH1).
Status LED2 (yellow) with name STAT2 connected to STM32F107 pin 64
(PC7/I2S3_MCK/TIM3_CH2).
Power-on LED (red) with name PWR – this led shows that +3.3V is applied to the board.
User button with name WKUP connected to STM32F107 pin 23 (PA0/WKUP).
User button with name TAMPER connected to STM32F107 pin 7 (PC13/TAMPER-RTC).
Reset button with name RESET connected to STM32F107 pin 14 (NRST).
Page 11 of 23