Download Discovery kit for STM32F030 Value Line microcontrollers
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UM1658 User manual Discovery kit for STM32F030 Value Line microcontrollers Introduction The STM32F030 Value Line Discovery kit (32F0308DISCOVERY) helps you to discover the device features and to develop your applications easily. It is based on STM32F030R8T6, an STM32 F0 series 32-bit ARM® Cortex™-M0 microcontroller, and includes an ST-LINK/V2 embedded debug tool, LEDs, push buttons and a prototyping board. Figure 1. 32F0308DISCOVERY September 2013 DocID025097 Rev 1 1/39 www.st.com Contents UM1658 Contents 1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Development toolchains supporting the 32F0308DISCOVERY . . . . . . . . . 6 2.4 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Hardware and layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 4.1 STM32F030R8T6 microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 4.2 Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2.1 Using ST-LINK/V2 to program/debug the STM32 F0 on board . . . . . . . 14 4.2.2 Using ST-LINK/V2 to program/debug an external STM32 application . . 15 4.3 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.5 Push buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.6 JP2 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.7 OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.7.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.7.2 OSC 32 KHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.8 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.9 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Connecting modules on the prototyping board . . . . . . . . . . . . . . . . . . 25 5.1 Mikroelektronica accessory boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.2 ST MEMS “adapter boards”, standard DIL24 socket . . . . . . . . . . . . . . . . 28 5.3 Arduino shield boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6 Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 7 Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2/39 DocID025097 Rev 1 UM1658 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Debug connector CN3 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Solder bridge settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Connecting using mikroBUS™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Connecting using IDC10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Connecting with a DIL24 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Supported MEMS adapter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Connecting with Arduino shields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 DocID025097 Rev 1 3/39 3 List of figures UM1658 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. 4/39 32F0308DISCOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 STM32F030R8T6 package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 STM32F030R8T6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Typical configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 32F0308DISCOVERY connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 ST-LINK connections image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Using IDC10 and mikroBUS™ connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 DIL24 socket connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Arduino shield board connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 32F0308DISCOVERY mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 32F0308DISCOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 DocID025097 Rev 1 UM1658 1 Conventions Conventions Table 1 provides the definition of some conventions used in the present document. Table 1. ON/OFF conventions Convention Definition Jumper JP1 ON Jumper fitted Jumper JP1 OFF Jumper not fitted Solder bridge SBx ON SBx connections closed by solder Solder bridge SBx OFF SBx connections left open DocID025097 Rev 1 5/39 38 Quick start 2 UM1658 Quick start The STM32F030 Value Line Discovery kit is a low-cost and easy-to-use development kit to quickly evaluate and start development with an STM32 F0 series microcontroller. Before installing and using the product, please accept the Evaluation Product License Agreement from www.st.com/stm32f0-discovery. For more information on the STM32F030 Value Line Discovery kit and for demonstration software, visit www.st.com/stm32f0-discovery. 2.1 Getting started Follow the sequence below to configure the STM32F030 Value Line Discovery kit and launch the DISCOVER application: 2.2 2.3 2.4 1. Check jumper position on the board, JP2 on, CN2 on (Discovery selected). 2. Connect the 32F0308DISCOVERY board to a PC with a USB cable ‘type A to mini-B’ through USB connector CN1 to power the board. Red LED LD1 (PWR) and LD2 (COM) light up and green LED LD3 blinks. 3. Press user button B1 (bottom left corner of the board). 4. Observe how the green LED LD3 blinking changes according to USER button B1 clicks. 5. Each click on USER button B1 is confirmed by the blue LED LD4. 6. To study or modify the DISCOVER project related to this demo, visit www.st.com/stm32f0-discovery and follow the tutorial. 7. Discover the STM32F0 features, download and execute programs proposed in the list of projects. 8. Develop your own application using available examples. System requirements • Windows PC (XP, Vista, 7) • USB type A to Mini-B USB cable Development toolchains supporting the 32F0308DISCOVERY • Altium®, TASKING™ VX-toolset • ARM®, Atollic TrueSTUDIO® • IAR™, EWARM (IAR Embedded Workbench®) • Keil™, MDK-ARM™ Order code To order the STM32F030 Value Line Discovery kit, use the order code STM32F0308-DISCO. 6/39 DocID025097 Rev 1 UM1658 3 Features Features The STM32F030 Value Line Discovery kit offers the following features: • STM32F030R8T6 microcontroller featuring 64 KB Flash, 8 KB RAM in an LQFP64 package • On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone ST-LINK/V2 (with SWD connector for programming and debugging) • Board power supply: through USB bus or from an external 5 V supply voltage • External application power supply: 3 V and 5 V • Four LEDs: – LD1 (red) for 3.3 V power on – LD2 (red/green) for USB communication – LD3 (green) for PC9 output – LD4 (blue) for PC8 output • Two push buttons (user and reset) • Extension header for LQFP64 I/Os for quick connection to prototyping board and easy probing. • An additional board is provided with the kit which can be connected to the extension connector for even easier prototyping and probing. • A large number of free ready-to-run application firmware examples are available on www.st.com/stm32f0-discovery to support quick evaluation and development. DocID025097 Rev 1 7/39 38 Hardware and layout 4 UM1658 Hardware and layout The STM32F030 Value Line Discovery board is designed around the STM32F030R8T6 microcontroller in a 64-pin LQFP package. Figure 2 illustrates the connections between the STM32F030R8T6 and its peripherals (ST-LINK/V2, push button, LEDs and connectors). Figure 3 and Figure 4 help you to locate these features on the STM32F030 Value Line Discovery board. Figure 2. Hardware block diagram Mini USB SWD Embedded ST-LINK/V2 STM32F030R8T6 I/O I/O RESET LED LD3, PC9 B2 RST LED LD4, PC8 B1 USER Header Header I/O MSv31935V1 8/39 DocID025097 Rev 1 UM1658 Hardware and layout Figure 3. Top layout (red/green LED) LD2 COM LD1 (red LED) PWR ST-LINK/V2 5V power supply input output 3V power supply input output CN3 SWD connector CN2 ST-LINK/DISCOVERY selector JP2 IDD measurement SB1 (VDD) SB3 (B1-USER) B2 reset button STM32F030R8T6 SB4 (B2-RESET) B1 user button (green LED) LD3 LD4 (blue LED) MB1134 revA STM32F0308-DISCO MS31936V1 Note: Pin 1 of CN2, CN3, P1 and P2 connectors are identified by a square. DocID025097 Rev 1 9/39 38 Hardware and layout UM1658 Figure 4. Bottom layout SB5, SB7, SB9, SB11 (RESERVED) SB6, SB8, SB10, SB12 (DEFAULT) SB13 (STM_RST) SB14, SB15 (RX, TX) SB16, SB17 (X2 crystal) SB18 (MCO) SB19 (NRST) SB20, SB21 (X3 crystal) SB22 (T_SWO) MS30025V1 10/39 DocID025097 Rev 1 UM1658 4.1 Hardware and layout STM32F030R8T6 microcontroller The STM32F030R8T6 microcontroller incorporates the high-performance ARM Cortex™-M0 32-bit RISC core operating at a 48 MHz frequency, high-speed embedded memories (up to 64 Kbytes of Flash memory and up to 8 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (up to two I2Cs, up to two SPIs, and up to two USARTs), one 12-bit ADC, up to 6 general-purpose 16-bit timers and an advanced-control PWM timer. Figure 5. STM32F030R8T6 package STM32F030R8T6 64 Kbyte of Flash memory 8 Kbytes of SRAM LQFP64 10 x 10 mm MS31938V1 The STM32F030R8T6 microcontroller operates in the -40 to +85 °C temperature range, from a 2.4 V to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications. These features make the STM32F030R8T6 microcontroller suitable for a wide range of applications such as application control and user interfaces, handheld equipment, A/V receivers and digital TV, PC peripherals, gaming platforms, e-bikes, consumer appliances, printers, scanners, alarm systems, video intercoms, and HVACs. DocID025097 Rev 1 11/39 38 Hardware and layout UM1658 Figure 6. STM32F030R8T6 block diagram Serial Wire Debug VDD18 Obl Flash interface SWCLK SWDIO as AF SRAM controller NVIC Bus matrix CORTEX-M0 CPU fHCLK = 48 MHz Flash up to 64 KB, 32 bits SRAM 4 / 8 KB POWER VOLT.REG 3.3 V TO 1.8 V VDD = 2.4 to 3.6 V VSS @ VDD POR Reset Int SUPPLY SUPERVISION POR/PDR @ VDDA NRST VDDA VDD RC HS 14 MHz RC HS 8 MHz @ VDDA GP DMA 5 channels RC LS PLL GPIO port A PB[15:0] GPIO port B PC[15:0] GPIO port C PD2 GPIO port D PF[1:0] PF[7:4] GPIO port F AHB decoder PA[15:0] RESET & CLOCK CONTROL AHBPCLK APBPCLK ADCCLK USARTCLK HCLK FCLK CRC AHB @ VDD XTAL OSC 4-32 MHz IWDG Power Controller @ VDD XTAL32 kHz OSC32_IN (PC14) OSC32_OUT (PC15) RTC TAMPER-RTC (ALARM OUT) RTC interface TIMER 1 4 channels 3 compl. channels BRK, ETR input as AF TIMER 3 4 ch., ETR as AF TIMER 14 1 channel as AF TIMER 15 2 channels 1 compl, BRK as AF TIMER 16 1 channel 1 compl, BRK as AF TIMER 17 1 channel 1 compl, BRK as AF APB 55 AF EXT. IT WKUP WWDG MOSI, MISO, SCK, NSS as AF MOSI/MISO, SCK/NSS, as AF SPI1 OSC_IN (PF0) OSC_OUT (PF1) IR_OUT as AF DBGMCU USART1 SPI2 USART2 RX, TX,CTS, RTS, CK as AF RX, TX,CTS, RTS, CK as AF SYSCFG IF @ VDDA Temp. sensor 16 AD inputs 12-bit ADC1 I2C 1 SCL, SDA, SMBA (20 mA for FM+) as AF I2C2 SCL, SDA as AF IF TIMER 6 VDDA VSSA MSv32137V1 12/39 DocID025097 Rev 1 UM1658 4.2 Hardware and layout Embedded ST-LINK/V2 The ST-LINK/V2 programming and debugging tool is integrated on the 32F0308DISCOVERY. The embedded ST-LINK/V2 can be used in 2 different ways according to the jumper states (see Table 2): • Program/debug the MCU on board, • Program/debug an MCU in an external application board using a cable connected to SWD connector CN3. The embedded ST-LINK/V2 supports only SWD for STM32 devices. For information about debugging and programming features refer to user manual UM1075 (ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32) which describes in detail all the ST-LINK/V2 features. Figure 7. Typical configuration Hardware requirements: - USB cable type A to mini-B - computer with Windows XP, Vista or 7 Development toolchain: Altium, TASKING VX-Toolset, Atollic, TrueSTUDIO IAR, EWARM Keil, MDK-ARM MS19052V2 Table 2. Jumper states Jumper state Description Both CN2 jumpers ON ST-LINK/V2 functions enabled for on board programming (default) Both CN2 jumpers OFF ST-LINK/V2 functions enabled for application through external CN3 connector (SWD supported) DocID025097 Rev 1 13/39 38 Hardware and layout 4.2.1 UM1658 Using ST-LINK/V2 to program/debug the STM32 F0 on board To program the STM32 F0 on board, simply plug in the two jumpers on CN2, as shown in Figure 8 in red, but do not use the CN3 connector as that could disturb communication with the STM32F030R8T6 of the 32F0308DISCOVERY. Figure 8. 32F0308DISCOVERY connections image CN3 SWD connector CN2 jumpers on 14/39 DocID025097 Rev 1 UM1658 4.2.2 Hardware and layout Using ST-LINK/V2 to program/debug an external STM32 application It is very easy to use the ST-LINK/V2 to program the STM32 on an external application. Simply remove the 2 jumpers from CN2 as shown in Figure 9, and connect your application to the CN3 debug connector according to Table 3. Note: SB19 and SB22 must be OFF if you use CN3 pin 5 in your external application. Table 3. Debug connector CN3 (SWD) Pin CN3 Designation 1 VDD_TARGET VDD from application 2 SWCLK SWD clock 3 GND Ground 4 SWDIO SWD data input/output 5 NRST RESET of target MCU 6 SWO Reserved Figure 9. ST-LINK connections image CN3 SWD connector CN2 ju jumpers umpers off DocID025097 Rev 1 15/39 38 Hardware and layout 4.3 UM1658 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: 4.4 4.5 4.6 • 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. 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. 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. JP2 (Idd) Jumper JP2, labeled Idd, allows the consumption of STM32F030R8T6 to be measured by removing the jumper and connecting an ammeter. 16/39 • 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). DocID025097 Rev 1 UM1658 Hardware and layout 4.7 OSC clock 4.7.1 OSC clock supply PF0 and PF1 can be used as GPIO or as HSE oscillator. By default these I/Os are configured as GPIO, so SB16 and SB17 are closed, SB18 is open and R22, R23, C13 and C14 are not populated. An external HSE clock can be provided to the MCU in three ways: • • • 4.7.2 MCO from ST-LINK. From MCO of the STM32F103. This frequency cannot be changed, it is fixed at 8 MHz and connected to PF0-OSC_IN of the STM32F030R8T6. Configuration needed: – SB16, SB18 CLOSED – R22, R23 removed – SB17 OPEN Oscillator onboard. From X2 crystal (not provided). For typical frequencies and its capacitors and resistors, please refer to the STM32F030R8T6 datasheet. Configuration needed: – SB16, SB17, SB18 OPEN – R22, R23, C13, C14 soldered Oscillator from external PF0. From external oscillator through pin 7 of the P1 connector. Configuration needed: – SB16, SB17 CLOSED – SB18 OPEN – R22 and R23 removed OSC 32 KHz clock supply PC14 and PC15 can be used as GPIO or as LSE oscillator. By default these I/Os are configured as GPIO, so SB20 & SB21 are closed and X3, R24, R25 are not populated. An external LSE clock can be provided to the MCU in two ways: • • Oscillator onboard. From X3 crystal (not provided). Configuration needed: – SB20, SB21 OPEN – C15, C16, R24 and R25 soldered. Oscillator from external PC14. From external oscillator trough the pin 5 of P1 connector. Configuration needed: – SB20, SB21 CLOSED – R24 and R25 removed DocID025097 Rev 1 17/39 38 Hardware and layout 4.8 UM1658 Solder bridges Table 4. Solder bridge settings Bridge State(1) Description OFF X2, C13, C14, R22 and R23 provide a clock. PF0, PF1 are disconnected from P1. ON PF0, PF1 are connected to P1 (R22, R23 and SB18 must not be fitted). SB6,8,10,12 (Default) ON Reserved, do not modify. SB5,7,9,11 (Reserved) OFF Reserved, do not modify. SB20,21 (X3 crystal) OFF X3, C15, C16, R24 and R25 deliver a 32 KHz clock. PC14, PC15 are not connected to P1. ON PC14, PC15 are only connected to P1 (R24, R25 must not be fitted). ON B2 push button is connected to the NRST pin of the STM32F030R8T6 MCU. OFF B2 push button is not connected the NRST pin of the STM32F030R8T6 MCU. SB3 (B1-USER) ON B1 push button is connected to PA0. OFF B1 push button is not connected to PA0. SB1 (VDD_3) ON VDD_3 must be permanently connected to VDD for normal use. OFF Reserved, do not modify. SB14,15 (RX,TX) OFF Reserved, do not modify. ON Reserved, do not modify. ON NRST signal of the CN3 connector is connected to the NRST pin of the STM32F030R8T6 MCU. OFF NRST signal of the CN3 connector is not connected to the NRST pin of the STM32F030R8T6 MCU. SB22 (T_SWO) ON SWO signal of the CN3 connector is connected to PB3. OFF SWO signal is not connected. SB13 (STM_RST) OFF No incidence on STM32F103C8T6 (ST-LINK/V2) NRST signal. ON STM32F103C8T6 (ST-LINK/V2) NRST signal is connected to GND. ON BOOT0 signal of the STM32F030R8T6 MCU is held low through a 510 Ohm pull-down resistor. OFF BOOT0 signal of the STM32F030R8T6 MCU can be set high through a 10 KOhm pull-up resistor R27 to solder. ON Provides the 8 MHz for OSC_IN from MCO of STM32F030R8T6. OFF See SB16, SB17 description. SB16,17 (X2 crystal)(2) SB4 (B2-RESET) SB19 (NRST) SB2 (BOOT0) SB18 (MCO)(2) 1. Default SBx state is shown in bold. 2. OSC_IN clock comes from MCO if SB18 is ON and SB16,17 are OFF and comes from X2 if SB18 is OFF and SB16,17 are ON. 18/39 DocID025097 Rev 1 UM1658 4.9 Hardware and layout Extension connectors The male headers P1 and P2 can connect the 32F0308DISCOVERY to a standard prototyping/wrapping board. STM32F030R8T6 GPI/Os are available on these connectors. P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter. Table 5. MCU pin description versus board function MCU pin BOOT0 60 NRST NRST 7 RESET PA0 USART1_CTS, USART2_CTS, ADC_IN0, RTC_TAMP2, WKUP1 14 USER 6 PA1 USART1_RTS, USART2_RTS, EVENTOUT, ADC_IN1 15 16 PA2 USART1_TX, USART2_TX, TIM15_CH1, ADC_IN2 16 17 PA3 USART1_RX, USART2_RX, TIM15_CH2, ADC_IN3 17 18 PA4 SPI1_NSS, USART1_CK USART2_CK, TIM14_CH1, ADC_IN4 20 21 PA5 SPI1_SCK, ADC_IN5 21 22 DocID025097 Rev 1 NRST BOOT0 P2 P1 CN3 Power supply Free I/O OSC SWD LED Push button Alternate functions LQFP64 Main function Board function 5 10 15 19/39 38 Hardware and layout UM1658 Table 5. MCU pin description versus board function (continued) MCU pin P2 P1 CN3 Power supply Free I/O OSC SWD LED Push button PA6 SPI1_MISO, TIM3_CH1, TIM1_BKIN, TIM16_CH1, EVENTOUT, ADC_IN6 22 23 PA7 SPI1_MOSI, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, EVENTOUT, ADC_IN7 23 24 PA8 USART1_CK, TIM1_CH1, EVENTOUT, MCO 41 25 PA9 USART1_TX, TIM1_CH2, TIM15_BKIN, I2C1_SCL 42 24 PA10 USART1_RX, TIM1_CH3, TIM17_BKIN, I2C1_SDA 43 23 PA11 USART1_CTS, TIM1_CH4, EVENTOUT 44 22 PA12 USART1_RTS, TIM1_ETR, EVENTOUT 45 21 PA13 IR_OUT, SWDIO 46 PA14 USART1_TX, USART2_TX, SWCLK 49 DocID025097 Rev 1 SWDIO SWCLK 20/39 Alternate functions LQFP64 Main function Board function 4 20 2 17 UM1658 Hardware and layout Table 5. MCU pin description versus board function (continued) MCU pin P2 P1 CN3 Power supply Free I/O OSC SWD LED Push button Alternate functions LQFP64 Main function Board function PA15 SPI1_NSS, USART1_RX, USART2_RX, EVENTOUT 50 PB0 TIM3_CH3, TIM1_CH2N, EVENTOUT 26 27 PB1 TIM3_CH4, TIM14_CH1, TIM1_CH3N 27 28 PB2 - 28 29 PB3 SPI1_SCK, EVENTOUT 55 PB4 SPI1_MISO, TIM3_CH1, EVENTOUT 56 10 PB5 SPI1_MOSI, I2C1_SMBA, TIM16_BKIN, TIM3_CH2 57 9 PB6 I2C1_SCL, USART1_TX, TIM16_CH1N 58 8 PB7 I2C1_SDA, USART1_RX, TIM17_CH1N 59 7 PB8 I2C1_SCL, TIM16_CH1 61 4 PB9 I2C1_SDA, IR_OUT, TIM17_CH1, EVENTOUT 62 3 PB10 I2C1_SCL, I2C2_SCL 29 SWO DocID025097 Rev 1 16 6 11 30 21/39 38 Hardware and layout UM1658 Table 5. MCU pin description versus board function (continued) MCU pin P2 P1 CN3 Power supply Free I/O OSC SWD LED Alternate functions Push button PB11 I2C1_SDA, I2C2_SDA, EVENTOUT 30 31 PB12 SPI1_NSS, SPI2_NSS, TIM1_BKIN, EVENTOUT 33 32 PB13 SPI1_SCK, SPI2_SCK, TIM1_CH1N 34 32 PB14 SPI1_MISO, SPI2_MISO, TIM1_CH2N, TIM15_CH1 35 31 PB15 SPI1_MOSI, SPI2_MOSI, TIM1_CH3N, TIM15_CH1N, TIM15_CH2 36 30 PC0 EVENTOUT ADC_IN10 8 11 PC1 EVENTOUT ADC_IN11 9 12 PC2 EVENTOUT ADC_IN12 10 13 PC3 EVENTOUT ADC_IN13 11 14 PC4 EVENTOUT ADC_IN14 24 25 PC5 ADC_IN15 25 26 PC6 TIM3_CH1 37 29 PC7 TIM3_CH2 38 28 PC8 TIM3_CH3 39 PC9 TIM3_CH4 40 PC10 - 51 DocID025097 Rev 1 BLUE GREEN 22/39 LQFP64 Main function Board function 27 26 15 UM1658 Hardware and layout Table 5. MCU pin description versus board function (continued) MCU pin P2 P1 CN3 Power supply Free I/O OSC SWD LED Push button Alternate functions LQFP64 Main function Board function PC11 - 52 14 PC12 - 53 13 PC13 RTC_TAMP1, RTC_TS, RTC_OUT, WKUP2 2 4 OSC32_IN OSC32_OUT PC14OSC32_ OSC32_IN IN 3 PC15OSC32_ OSC32_OUT OUT 4 PD2 TIM3_ETR 54 PF0OSC_IN OSC_IN 5 PF1OSC_ OUT OSC_OUT 6 PF4 EVENTOUT 18 19 PF5 EVENTOUT 19 20 PF6 I2C1_SCL, I2C2_SCL 47 19 PF7 I2C1_SDA, I2C2_SDA 48 18 VDD_3 VDD 1 64 VDD_2 32 VDDA 13 DocID025097 Rev 1 6 12 OSC_IN OSC_OUT VDD_1 5 7 8 3 23/39 38 Hardware and layout UM1658 Table 5. MCU pin description versus board function (continued) MCU pin 5V 1 3V DocID025097 Rev 1 VDD GND GND GND GND GND 24/39 P2 P1 CN3 12 Power supply VSSA Free I/O 31 OSC VSS_2 SWD 63 LED VSS_1 Push button Alternate functions LQFP64 Main function Board function 1 5 2 2 3 9 33 33 UM1658 5 Connecting modules on the prototyping board Connecting modules on the prototyping board This section gives some examples of how to connect ready-to-use modules available from different manufacturers to the STM32F030 Value Line Discovery kit via the prototyping board included in the kit. Software examples, based on the connections described below, are available at www.st.com/stm32f0-discovery. 5.1 Mikroelektronica accessory boards Mikroelektronika, http://www.mikroe.com, has specified two standard connectors for their accessory boards, named mikroBUS™ (http://www.mikroe.com/mikrobus_specs.pdf) and IDC10. MikroBUS™ is a 16-pin connector to connect accessory boards very quickly and easily to a microcontroller board through SPI, USART or I2C communications, along with additional pins such as Analog Input, PWM and Interrupt. The set of mikroElektronika boards compatible with mikroBUS™ is called “Click boards”. IDC10 is a 10-pin connector to connect the general purpose I/O of an MCU to other accessory boards. The tables below are one solution for connecting mikroBUS™ and IDC boards to the 32F0308DISCOVERY; this solution used in the different examples is available at www.st.com/stm32f0-discovery. Table 6. Connecting using mikroBUS™ Mikroelektronica mikroBUS™ 32F0308DISCOVERY Pin Description Pin Description AN Analog pin PA4 DAC1_OUT RST Reset pin PB13 GPIO OUTPUT (5V tolerant) SPI Chip Select line PA11 GPIO OUTPUT (5V tolerant) SCK SPI Clock line PB3 SPI1_SCK MISO SPI Slave Output line PB4 SPI1_MISO MOSI SPI Slave Input line PB5 SPI1_MOSI PWM PWM output line PA8 TIM1_CH1 CS INT Hardware Interrupt line RX UART Receive line PA3 USART2_RX TX UART Transmit line PA2 USART2_TX SCL I2C Clock line PF6 I2C2_SCL SDA I2C Data line PF7 I2C2_SDA VCC 5V power line 5V Power line 5V DocID025097 Rev 1 PB12 GPIO INPUT EXTI (5V tolerant) 25/39 38 Connecting modules on the prototyping board UM1658 Table 7. Connecting using IDC10 Mikroelektronica IDC10 connector 26/39 32F0308DISCOVERY P0 GPIO PC0 GPIO OUTPUT (3.3V tolerant) P1 GPIO PC1 GPIO OUTPUT (3.3V tolerant) P2 GPIO PC2 GPIO OUTPUT (3.3V tolerant) P3 GPIO PC3 GPIO OUTPUT (3.3V tolerant) P4 GPIO PC4 GPIO OUTPUT (3.3V tolerant) P5 GPIO PC5 GPIO OUTPUT (3.3V tolerant) P6 GPIO PC6 GPIO OUTPUT (5V tolerant) P7 GPIO PC7 GPIO OUTPUT (5V tolerant) VCC VCC 5V power line 3V VDD GND Reference Ground GND VSS P0 GPIO PC0 GPIO OUTPUT (3.3V tolerant) P1 GPIO PC1 GPIO OUTPUT (3.3V tolerant) P2 GPIO PC2 GPIO OUTPUT (3.3V tolerant) P3 GPIO PC3 GPIO OUTPUT (3.3V tolerant) DocID025097 Rev 1 UM1658 Connecting modules on the prototyping board The Figure 10 illustrates the connections between the 32F0308DISCOVERY and the 2 connectors, IDC10 and mikroBUS™. Figure 10. Using IDC10 and mikroBUS™ connectors DocID025097 Rev 1 27/39 38 Connecting modules on the prototyping board 5.2 UM1658 ST MEMS “adapter boards”, standard DIL24 socket STMicroelectronics has defined a standard DIL24 connector to easily evaluate its MEMS sensors connected to a microcontroller through SPI or I2C communications. Table 8 is one solution for connecting the DIL24 boards to the 32F0308DISCOVERY, this solution is used in different examples and available at www.st.com/stm32f0-discovery. Table 8. Connecting with a DIL24 board ST MEMS DIL24 Eval board 32F0308DISCOVERY P01 VDD Power supply 3V VDD P02 Vdd_IO Power supply for I/O pins 3V VDD P13 GND 0V supply GND GND P14 INT1 Inertial interrupt 1 PB12 GPIO INPUT EXTI (5V tolerant) P15 INT2 inertial interrupt 2 PB11 GPIO INPUT EXTI (5V tolerant) PA11 GPIO OUTPUT (5V tolerant) P03 NC P04 NC P05 NC P06 NC P07 NC P08 NC P09 NC P10 NC P11 NC P12 NC P16 NC P17 NC P18 NC P19 CS - 0:SPI enabled 1:I2C mode P20 SCL (I2C serial clock) SPC (SPI serial clock) PB6 PB3 I2C1_SCL SPI1_SCK P21 SDA I2C Serial Data SDI SPI Serial Data Input PB7 PB5 I2C1_SDA SPI1_MOSI P22 SDO SPI Serial Data Output I2C less significant bit of the device address PB4 SPI1_MISO P23 NC P24 NC 28/39 DocID025097 Rev 1 UM1658 Connecting modules on the prototyping board Figure 11 illustrates the connections between the 32F0308DISCOVERY and the DIL24 socket. Figure 11. DIL24 socket connections DocID025097 Rev 1 29/39 38 Connecting modules on the prototyping board UM1658 Supported MEMS adapter boards Table 9 is a list of supported MEMS adapter boards as of April, 2012. Table 9. Supported MEMS adapter boards ST MEMS DIL24 Eval Board 30/39 Core product STEVAL-MKI009V1 LIS3LV02DL STEVAL-MKI013V1 LIS302DL STEVAL-MKI015V1 LIS344ALH STEVAL-MKI082V1 LPY4150AL STEVAL-MKI083V1 LPY450AL STEVAL-MKI084V1 LPY430AL STEVAL-MKI085V1 LPY410AL STEVAL-MKI086V1 LPY403AL STEVAL-MKI087V1 LIS331DL STEVAL-MKI088V1 LIS33DE STEVAL-MKI089V1 LIS331DLH STEVAL-MKI090V1 LIS331DLF STEVAL-MKI091V1 LIS331DLM STEVAL-MKI092V1 LIS331HH STEVAL-MKI095V1 LPR4150AL STEVAL-MKI096V1 LPR450AL STEVAL-MKI097V1 LPR430AL STEVAL-MKI098V1 LPR410AL STEVAL-MKI099V1 LPR403AL STEVAL-MKI105V1 LIS3DH STEVAL-MKI106V1 LSM303DLHC STEVAL-MKI107V1 L3G4200D STEVAL-MKI107V2 L3GD20 STEVAL-MKI108V1 9AXISMODULE v1 [LSM303DLHC + L3G4200D] STEVAL-MKI108V2 9AXISMODULE v2 [LSM303DLHC + L3GD20] STEVAL-MKI110V1 AIS328DQ STEVAL-MKI113V1 LSM303DLM STEVAL-MKI114V1 MAG PROBE (based on LSM303DLHC) STEVAL-MKI120V1 LPS331AP STEVAL-MKI122V1 LSM330DLC STEVAL-MKI123V1 LSM330D DocID025097 Rev 1 UM1658 Connecting modules on the prototyping board Table 9. Supported MEMS adapter boards (continued) ST MEMS DIL24 Eval Board Core product STEVAL-MKI124V1 10AXISMODULE [LSM303DLHC + L3GD20+ LPS331AP] STEVAL-MKI125V1 A3G4250D Note: For an up-to-date list, visit http://www.st.com/internet/evalboard/subclass/1116.jsp. The DIL24 boards are described as “adapter boards” in the field “General Description”. 5.3 Arduino shield boards Arduino™ is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. See http://www.arduino.cc for more information. Arduino accessory boards are called “Shields” and can be easily connected to the 32F0308DISCOVERY according to the following table. Table 10. Connecting with Arduino shields Arduino power connector Reset 32F0308DISCOVERY Reset from Shield board NRST Reset discovery 3V3 VCC 3.3V power line 3V VDD 5V VCC 5V power line 5V VDD GND Reference Ground GND Reference Ground GND Reference Ground GND Reference Ground Vin External alimentation Jumper fitted to power board by External 3 V power supply. 3V Arduino analog in connector 32F0308DISCOVERY A0 Analog input or Digital pin 14 PC0 ADC_IN10 A1 Analog input or Digital pin 15 PC1 ADC_IN11 A2 Analog input or Digital pin 16 PC2 ADC_IN12 A3 Analog input or Digital pin 17 PC3 ADC_IN13 A4 Analog input or SDA or Digital pin 18 PC4 or PF7 ADC_IN14 or I2C2_SDA A5 Analog input or SCL or Digital pin 19 PC5 or PF6 ADC_IN15 or I2C2_SCL DocID025097 Rev 1 31/39 38 Connecting modules on the prototyping board UM1658 Table 10. Connecting with Arduino shields (continued) Arduino digital connector 32F0308DISCOVERY D0 Digital pin 0 or RX PA3 USART2_RX D1 Digital pin 1 or TX PA2 USART2_TX D2 Digital pin 2 / External interrupt PB12 EXTI (5V tolerant) D3 Digital pin 3 / Ext int or PWM PB11 EXTI (5V tolerant) or TIM2_CH4 D4 Digital pin 4 PA7 GPIO (3V tolerant) D5 Digital pin 5 or PWM PB9 TIM17_CH1 D6 Digital pin 6 or PWM PB8 TIM16_CH1 D7 Digital pin 7 PA6 GPIO (3V tolerant) D8 Digital pin 8 PA5 GPIO (3V tolerant) D9 Digital pin 9 or PWM PA4 TIM14_CH1 D10 Digital pin 10 or CS or PWM PA11 TIM1_CH4 D11 Digital pin 11 or MOSI or PWM PB5 SPI1_MOSI or TIM3_CH2 D12 Digital pin 12 or MISO PB4 SPI1_MISO D13 Digital pin 13 or SCK PB3 SPI1_SCK GND Reference Ground GND Reference Ground AREF ADC voltage reference NC Arduino ICSP connector 32/39 Not connected 32F0308DISCOVERY 1 MISO PB4 2 VCC 3.3V 3 SCK PB3 SPI1_SCK 4 MOSI PB5 SPI1_MOSI 5 RST NRST Reset discovery 6 GND GND Reference Ground 3V DocID025097 Rev 1 SPI1_MISO VDD UM1658 Connecting modules on the prototyping board Figure 12 illustrates the connections between the 32F0308DISCOVERY and the Arduino shield boards. Figure 12. Arduino shield board connections DocID025097 Rev 1 33/39 38 Mechanical drawing 6 UM1658 Mechanical drawing Figure 13. 32F0308DISCOVERY mechanical drawing MB1134 revA STM32F0308-DISCO 34/39 DocID025097 Rev 1 DocID025097 Rev 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Header 33 P1 NRST PC0 PC1 PC2 PC3 PA0 PA1 PA2 PA3 PF4 PF5 PA4 PA5 PA6 PA7 PC4 PC5 PB0 PB1 PB2 PB10 PB11 PB12 VDD_3 PC13 PC14 PC15 PF0 PF1 3V PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC8 PC9 PC10 PC11 PC12 PC13 PC14 PC15 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 PA9 PA10 PA11 PA12 PA13 PA14 PA15 PA10 PA9 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC8 PC9 PC10 PC11 PC12 PC13 PC14 PC15 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 PA9 PA10 PA11 PA12 PA13 PA14 PA15 U_STM32Fx STM32Fx.SchDoc PA10 PA9 NRST BOOT0 VDD_3 MCO PF0 PF1 PF4 PF5 PF6 PF7 PD2 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 PB10 PB11 PB12 PB13 PB14 PB15 NRST PB3 MCO PA14 PA13 T_NRST T_SWO NRST PB3 NRST BOOT0 VDD_3 MCO PF0 PF1 PF4 PF5 PF6 PF7 PD2 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 PB10 PB11 PB12 PB13 PB14 PB15 TCK/SWCLK TMS/SWDIO MCO PA14 PA13 BOOT0 PB7 PB6 PB5 PB4 PB3 PD2 PC12 PC11 PC10 PA15 PA14 PF7 PF6 PA13 PA12 PA11 PA10 PA9 PA8 PC9 PC8 PC7 PC6 PB15 PB14 PB13 PB9 PB8 Date: 7/4/2013 STM32F030 DISCOVERY Number:MB1134 Rev: A.1(PCB.SCH) Title: STMicroelectronics VDD 5V Sheet 1 Header 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 P2 of 7 ST_LINK_V2.SCHDOC U_ST_LINK UM1658 Electrical schematics Electrical schematics Figure 14. 32F0308DISCOVERY 35/39 38 100nF 3V 1 2 R21 R20 8MHz X1 1 2 3 4 5 0 5075BMR-05-SM VCC DD+ ID GND SHELL CN1 U5V USB 5V 3V VBAT PC13 PC14 PC15 OSCIN OSCOUT NRST VSSA VDDA PA0 PA1 PA2 Not Fitted STLINK_RX 1 2 3 4 5 6 7 8 9 10 11 12 EXT_5V TX RX BAT60JFILM R6 1K5 3V R8 0 USB_DM R7 0 USB_DP R5 100K D1 SB15 JP1 SB14 4K7 AIN_1 OSC_IN OSC_OUT STM_RST 4K7 C10 20pF 10K Close to JP Not Fitted STM32F0_USART1_TX PA9 PA10 STM32F0_USART1_RX SB13 C8 R16 100K C11 20pF 3V Not Fitted R19 100K SWIM_IN SWIM 3V T_JTCK T_JTDO T_JTDI T_NRST Board Ident: PC13=0 R13 SWIM_IN SWIM_RST SWIM_RST_IN T_JRST 10K STLINK_TX STM_JTCK 48 47 46 45 44 43 42 41 40 39 38 37 C6 100nF C7 100nF 3V 36 35 34 33 32 31 30 29 28 27 26 25 C12 100nF VDD_2 VSS_2 JTMS/SWDIO PA12 PA11 PA10 PA9 PA8 PB15 PB14 PB13 PB12 VDD_3 VSS_3 PB9 PB8 BOOT0 PB7 PB6 PB5 PB4/JNTRST PB3/JTDO PA15/JTDI JTCK/SWCLK PA3 PA4 PA5 PA6 PA7 PB0 PB1 PB2/BOOT1 PB10 PB11 VSS_1 VDD_1 13 14 15 16 17 18 19 20 21 22 23 24 SWIM_IN SWIM R18 C9 100nF T_SWDIO_IN T_JTMS T_JTCK STM_JTMS USB_DP USB_DM T_SWO LED_STLINK 3V 100 R34 R11 100 LD1 RED R2 1K 3V U2 STM32F103C8T6 1 2 3 4 5 6 R9 10K R10 R17 R15 R14 R12 22 22 22 22 BAT60JFILM D3 AIN_1 T_SWO T_NRST T_JTMS T_JTCK 100 JP2 Idd C24 20pF VDD MCO Not Fitted MCO 5V 3 1 COM PWR Vout LED_STLINK INH GND Vin U1 T_SWO SB22 T_NRST CN2 SB11 SB9 SB7 SB5 STM_JTMS STM_JTCK SB19 5 100 R3 100 R4 3 2 4 1 R1 0 BAT60JFILM D2 3V Number:MB1134 Rev: A.1(PCB.SCH) Date: 7/1/2013 Sheet 2 of 3 SWD STM32F030 DISCOVERY ST-LINK/V2 (SWD only) 3V OUT_3V LD_BICOLOR_CMS _Green Red LD2 STMicroelectronics Title: SWDIO SWCLK 3V PA14 PA13 NRST PB3 Jumpers ON --> DISCOVERY Selected Jumpers OFF --> ST-LINK Selected SB12 SB10 SB8 SB6 DEFAULT C1 C4 BYPASS 1 _X5R_0603 1 _X5R_0603 LD3985M33R C3 C5 C2 10nF_X7R_0603 100nF 100nF RC Must be very close to STM32F103 pin 29 Header 6 CN3 SWD Not Fitted 2 DocID025097 Rev 1 4 1 2 3 4 36/39 RESERVED TCK/SWCLK TMS/SWDIO Electrical schematics UM1658 Figure 15. ST-LINK/V2 (SWD only) DocID025097 Rev 1 PC13 PC14 PC15 SB21 PF0 MCO PF0 MCO Not Fitted R25 0 Not Fitted SB17 PA14 PA15 PC10 PC11 PC12 PD2 PB3 PB4 PB5 PB6 PB7 BOOT0 PB8 PB9 VSS_1 VDD_1 2 1 X3 SB20 3 4 C15 6.8pF R24 0 8MHz C14 20pF R23 0 X2 1 2 MC306-G-06Q-32.768 (JFVNY) 6.8pF C16 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 SB1 Closed by default PA14 PA15 PC10 PC11 PC12 PD2 PB3 PB4 PB5 PB6 PB7 BOOT0 PB8 PB9 VDD SB18 C17 1uF PB8 PB9 Close to XTAL & MCU VDD_3 PC13 PC14 PC15 510 10K Close to STM32 SB2 R26 R27 Not Fitted VDD BOOT0 Not Fitted PA14 PA15 PC10 PC11 PC12 PD2 PB3 PB4 PB5 PB6 PB7 PF7 PF6 PA13 PA12 PA11 PA10 PA9 PA8 PC9 PC8 PC7 PC6 PB15 PB14 PB13 PB12 PF7 PF6 PA13 PA12 PA11 PA10 PA9 PA8 PC9 PC8 PC7 PC6 PB15 PB14 PB13 PB12 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 VDD_2 VSS_2 PB11 PB10 PB2 or NPOR (1.8V mode) PB1 PB0 PC5 PC4 PA7 PA6 PA5 PA4 PF5 PF4 PA3 PF7 PF6 PA13 PA12 PA11 PA10 PA9 PA8 PC9 PC8 PC7 PC6 PB15 PB14 PB13 PB12 C13 20pF R22 390 SB16 PF1 PF1 PC3 PC3 PC2 PC2 PC1 PC1 PC0 PC0 NRST NRST PA2 PA1 PA0 VDD_3 PC13 - TAMPER1 - WKUP2 PC14 - OSC32_IN PC15 - OSC32_OUT PF0 - OSC_IN PF1 - OSC_OUT NRST PC0 PC1 PC2 PC3 VSSA / VREFVDDA / VREF+ PA0 - TAMPER2 - WKUP1 PA1 PA2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VDD PB11 PB10 PB2 PB1 PB0 PC5 PC4 PA7 PA6 PA5 PA4 PF5 PF4 PA3 C18 1uF VDD PB11 PB10 PB2 PB1 PB0 PC5 PC4 PA7 PA6 PA5 PA4 PF5 PF4 PA3 PA2 PA1 PA0 VDD 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 U3 STM32F030R8T6 C20 100nF C21 C19 100nF 100nF VDD PA0 blue LD4 NRST 330 R33 100K VDD 100 R32 VDD RESET Button USER & WAKE-UP Button SB3 R28 100nF C22 100nF C23 SB4 Not Fitted Not Fitted 660 R31 green LD3 R29 220K Date: 7/4/2013 STM32F030 DISCOVERY MCU Number:MB1134 Rev: A.1(PCB.SCH) B1 B2 SW-PUSH-CMS Title: STMicroelectronics PC8 330 2 1 3 4 2 1 R30 SW-PUSH-CMS 3 4 PC9 Sheet 3 of 3 UM1658 Electrical schematics Figure 16. MCU 37/39 38 Revision history 8 UM1658 Revision history Table 11. Document revision history 38/39 Date Revision 03-Sep-2013 1 Changes Initial release. DocID025097 Rev 1 UM1658 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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