ST STM32F030 User Manual

Hardware and layout UM1658
16/39 DocID025097 Rev 1
4.3 Power supply and power selection
The power supply is provided either by the host PC through the USB cable, or by an
external 5 V power supply.
The D1 and D2 diodes protect the 5 V and 3 V pins from external power supplies:
• 5 V and 3 V can be used as output power supplies when another application board is
connected to pins P1 and P2.
In this case, the 5 V and 3 V pins deliver a 5 V or 3 V power supply and power
consumption must be lower than 100 mA.
• 5 V can also be used as input power supplies; for example, when the USB connector is
not connected to the PC.
In this case, the 32F0308DISCOVERY board must be powered by a power supply unit
or by auxiliary equipment complying with standard EN-60950-1: 2006+A11/2009, and
must be Safety Extra Low Voltage (SELV) with limited power capability.
4.4 LEDs
• LD1 PWR: Red LED indicates that the board is powered.
• LD2 COM: Tricolor LED (COM) advises on the communication status as follows:
– Slow blinking Red LED/Off: At power on before USB initialization
– Fast blinking Red LED/Off: After the first correct communication between PC and
STLINK/V2 (enumeration)
– Red LED On: When initialization between PC and ST-LINK/V2 is successfully
finished
– Green LED On: After successful target communication initialization
– Blinking Red/Green LED: During communication with target
– Red LED On: Communication finished and OK
– Orange LED On: Communication failure
• User LD3: Green user LED connected to the I/O PC9 of the STM32F030R8T6.
• User LD4: Blue user LED connected to the I/O PC8 of the STM32F030R8T6.
4.5 Push buttons
• B1 USER: User push button connected to the I/O PA0 of the STM32F030R8T6.
• B2 RESET: Push button used to RESET the STM32F030R8T6.
4.6 JP2 (Idd)
Jumper JP2, labeled Idd, allows the consumption of STM32F030R8T6 to be measured by
removing the jumper and connecting an ammeter.
• Jumper on: STM32F030R8T6 is powered (default).
• Jumper off: an ammeter must be connected to measure the STM32F030R8T6 current,
(if there is no ammeter, the STM32F030R8T6 is not powered).

ST STM32F030 Specifications

General

Brand	ST
Model	STM32F030
Category	Microcontrollers
Language	English

Summary

Introduction

Conventions

Quick start

Getting started

Instructions for initial setup and launching the DISCOVER application.

System requirements

Lists necessary hardware and software for the development kit.

Development toolchains supporting the 32F0308DISCOVERY

Lists compatible software development tools for the kit.

Order code

Provides the specific code for purchasing the kit.

Features

Hardware and layout

STM32F030R8T6 microcontroller

Details the main microcontroller, its specs, and applications.

Embedded ST-LINK/V2

Describes the integrated programming and debugging tool.

Power supply and power selection

Explains how the board is powered and the selection options.

LEDs

Details the function and behavior of the LEDs on the board.

Push buttons

Describes the user and reset buttons and their connections.

JP2 (Idd)

Explains the purpose of the JP2 jumper for current measurement.

OSC clock

Discusses onboard and external clock sources.

Solder bridges

Details the configuration options provided by various solder bridges.

Extension connectors

Describes the connectors for interfacing with external hardware.

Connecting modules on the prototyping board

Mikroelektronika accessory boards

How to connect Mikroelektronika Click boards using mikroBUS and IDC10.

ST MEMS “adapter boards”, standard DIL24 socket

Connecting ST MEMS adapter boards using a DIL24 socket.

Arduino shield boards

How to connect standard Arduino shields to the discovery board.

Mechanical drawing

Electrical schematics

Revision history