DocID026505 Rev 1

19/25

AN4538

STM32F3xx microcontroller low-power application example

24

2.3

How to use the application

This section describes how to prepare the NUCLEO-F302R8 board to be used for the

application as well as the steps performed to run correctly the application.

2.3.1

Environment setup

First read the «getting started» of the NUCLEO-F302R8 board user manual UM1724 to

prepare the NUCLEO-F302R8 board for a correct use.

The version of the NUCLEO-F302R8 board to be used is MB1136-C 02 (with on-board

32kHz oscillator).

The user needs to know about the hardware connections and modifications that must be

done before running the application.

•

NUCLEO-F302R8 board modifications

–

SB62 and SB63 solder-bridges ON

Note:

For more details about LSE please refer to the user manual of STM32 Nucleo board

«UM1724».

•

NUCLEO-F302R8 board connections

–

Connect the JP5 jumper between pin 2 and pin 3 (U5V) and make sure the JP1

jumper is off.

–

Connect USART2_Tx to USART1_Tx: PA2 connected to PA9

–

Connect USART2_Rx to USART1_Rx: PA3 connected to PA10

–

–

Connect the Idd jumper JP6 to the multimeter terminals.

•

NUCLEO-F302R8 board connections to the instruments

–

Connect the oscilloscope probe to PA8 pin.

–

Connect the DC power supply output to pin PA7 and regulate it to a voltage lower

than the comparator reference voltage (1.2 V if Vrefint selected or 2V if

DAC1_OU1 selected). Turn off the power supply.