dm00099401

UM1690
User manual
Discovery kit for STM32 F0 series with STM32F072RB MCU
Introduction
The STM32F072 discovery kit (32F072BDISCOVERY) helps you to discover the full
features of the STM32F0 series and to develop your applications. It is based on an
STM32F072RBT6 and includes an ST-LINK/V2 embedded debug tool interface, ST MEMS
Gyroscope, LEDs, pushbuttons, linear touch sensor, touch keys, RF EEprom connector and
a USB mini-B connector.
Figure 1. STM32F072 discovery board
June 2014
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www.st.com
Contents
UM1690
Contents
1
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Ordering and product information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Hardware layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1
Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.1.1
Using ST-LINK/V2 to program/debug the STM32F072 on board . . . . . 11
4.1.2
Using ST-LINK/V2 to program/debug an external STM32 application . . 12
4.2
Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4
Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5
Linear touch sensor / touch keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.6
USB device support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.7
BOOT0 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.8
Embedded USB Bootloader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.9
Gyroscope MEMS (ST MEMS L3GD20) . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.10
JP2 (Idd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.11
Extension and RF EEprom connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.12
OSC clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.12.1
OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.12.2
OSC 32 KHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.13
Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.14
Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5
Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6
Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Debug connector CN2 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Extension and RF EEprom connector (CN3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Solder bridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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3
List of figures
UM1690
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.
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STM32F072 discovery board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
STM32F072 discovery board connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
ST-Link connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Extension and RF EEprom connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
STM32F072 discovery board mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
STM32F072 discovery board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
STM32F072RBT6 MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
MEMS and USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Linear sensor and pushbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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1
Conventions
Conventions
Table 1 provides the definition of some conventions used in the present document.
Table 1. ON/OFF conventions
Convention
Definition
Jumper JPx ON
Jumper fitted
Jumper JPx OFF
Jumper not fitted
Solder bridge SBx ON
SBx connections closed by solder
Solder bridge SBx OFF SBx connections left open
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Ordering and product information
2
UM1690
Ordering and product information
The STM32F072 discovery is a low-cost and easy-to-use development kit to quickly
evaluate and start a development with an STM32F0 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 STM32F072 discovery board and for demonstration software,
visit www.st.com/stm32f0-discovery.
To order the discovery kit for the STM32 F0 series, use the order code: STM32F072BDISCO.
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3
Features
Features
The STM32F072 discovery board offers the following features:
•
STM32F072RBT6 microcontroller featuring 128 KB of Flash memory, 16 KB of SRAM
in an LQFP64 package
•
On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone STLINK/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
•
L3GD20, ST MEMS motion sensor, 3-axis digital output gyroscope
•
One linear touch sensor or four touch keys
•
Six LEDs:
–
LD1 (red/green) for USB communication
–
LD2 (red) for 3.3 V power on
–
Four user LEDs: LD3 (orange), LD4 (green), LD5 (red) and LD6 (blue)
•
Two pushbuttons (user and reset)
•
USB USER with Mini-B connector
•
RF EEprom daughter board connector
•
Extension header for LQFP64 I/Os for a quick connection to the prototyping board and
easy probing
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Hardware layout
4
UM1690
Hardware layout
The STM32F072 discovery board has been designed around the STM32F072RBT6
microcontroller in a 64-pin LQFP package.
Figure 2 illustrates the connections between the STM32F072RBT6 and its peripherals (STLINK/V2, ST MEMS gyroscope L3GD20, LEDs, pushbuttons, linear touch sensor, touch
keys, RF EEprom connector and a USB mini-B connector).
Figure 3 and Figure 4 help you to locate these features on the STM32F072 discovery board.
Figure 2. Hardware block diagram
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Hardware layout
Figure 3. Top layout
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Hardware layout
UM1690
Figure 4. Bottom layout
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4.1
Hardware layout
Embedded ST-LINK/V2
The ST-LINK/V2 programming and debugging tool is integrated on the STM32F072
discovery board. 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 CN4.
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.
Table 2. Jumper states
4.1.1
Jumper state
Description
Both CN5 jumpers ON
ST-LINK/V2 functions enabled for on board programming (default)
Both CN5 jumpers OFF
ST-LINK/V2 functions enabled for application through external CN4
connector (SWD supported)
Using ST-LINK/V2 to program/debug the STM32F072 on board
To program the STM32F072 on board, simply plug in the two jumpers on CN5, as shown in
Figure 5 in red, but do not use the CN4 connector as that could disturb communication with
the STM32F072RBT6 of the STM32F072 discovery board.
Figure 5. STM32F072 discovery board connections
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Hardware layout
4.1.2
UM1690
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 CN5 as shown in Figure 6, and connect your application
to the CN4 debug connector according to Table 3.
Note:
SB10 must be OFF if you use CN4 pin 5 in your external application.
Table 3. Debug connector CN2 (SWD)
Pin
CN2
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 6. ST-Link connections
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4.2
Hardware layout
Power supply and power selection
The power supply is provided either by the host PC through the USB ST-LINK or USB
USER connector, 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:
4.3
4.4
•
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 the power
consumption must be lower than 100 mA.
•
5 V can also be used as input power supplies, e.g. when the USB connector is not
connected to the PC.
In this case, the STM32F072 discovery board must be powered by a power supply unit
or by an 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 COM: LD1 default status is red. LD1 turns to green to indicate that
communications are in progress between the PC and the ST-LINK/V2.
•
LD2 PWR: This red LED indicates that the board is powered.
•
User LD3: This orange user LED is connected to the I/O PC8 of the STM32F072RBT6.
•
User LD4: This green user LED is connected to the I/O PC9 of the STM32F072RBT6.
•
User LD5: This red user LED is connected to the I/O PC6 of the STM32F072RBT6.
•
User LD6: This blue user LED is connected to the I/O PC7 of the STM32F072RBT6.
Pushbuttons
B1 USER: User and Wake-Up button connected to the I/O PA0 of the STM32F072RBT6.
B2 RESET: The pushbutton connected to NRST is used to RESET the STM32F072RBT6.
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Hardware layout
4.5
UM1690
Linear touch sensor / touch keys
To demonstrate touch sensing capabilities, the STM32F072 discovery includes a linear
touch sensor which can be used either as a 3-position linear touch sensor or as 4 touch
keys. Both functions are illustrated in the demonstration software.
3 pairs of I/O ports are assigned to the linear touch sensor / touch keys. Each pair must
belong to the same analog switch group:
•
PA2, PA3 (group 1)
•
PA6, PA7 (group 2)
•
PB0, PB1 (group 3)
To minimize the noise, these pairs are dedicated to the linear touch sensor and the touch
keys and are not connected to external headers. To design a touch sensing application,
refer to the following documentation and firmware:
4.6
•
For details concerning I/O ports, refer to the STM32F072RBT6 datasheet.
•
For information on software development, see DISCOVER application software on
www.st.com/stm32f0-discovery.
•
For more detail concerning touch sensing application design and layout, refer to
AN2869 -Guidelines for designing touch sensing applications.
•
STM32 touch sensing library available from www.st.com/stm32f0-discovery.
USB device support
The STM32F072RBT6 MCU is also used to drive the second USB mini-B connector (USB
USER) which allows the board to be used as a USB Device. The STM32F072 discovery can
then act as a USB joystick, mouse, or other similar device. If both USBs are connected,
diodes D1 and D2 protect the board and use the power from the USB ST-LINK.
The board can be powered through this USB USER connector, in which case LED2 PWR
lights up, LED1 COM blinks and it can run an application in standalone mode.
The STM32F072RBT6 MCU controls the USB USER through PA11 and PA12.
4.7
BOOT0 configuration
BOOT0 is at level “0” through a pull-down R33. If you want to set BOOT0 at level “1”, it can
be configured by setting a jumper between P2.6 (BOOT0) and P2.5 (VDD).
This facility is offered for fast and instantaneous configuration.
Note:
If you need to set BOOT0 at level "1" continuously, then unsolder the resistor R33 to avoid a
consumption of 6 mA while connecting pin P2.6 (BOOT0) and P2.5 (VDD) with a jumper or
with a wire.
4.8
Embedded USB Bootloader
The STM32F072 line embeds a bootloader allowing to program blanked device or to
upgrade the device firmware over the USB without the need of a specific programmer.
When using this discovery kit, the STM32F072RBT6 MCU firmware can be thus
programmed through the second USB mini-B connector (USER USB).
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Hardware layout
To program the microcontroller FLASH using this approach, a jumper must be set between
BOOT0 (P2.6) and VDD (P2.5), and a cable connected between the USER USB connector
of the board and a PC. On the PC side, it is required to use the Device Firmware Upgrade
Utility named "DfuSe". This software (STSW-STM32080) and its associated user manual
(UM0412) are available from www.st.com.
Several application notes are also available on that topic.
•
AN2606: STM32™ Microcontroller system memory boot mode
•
AN3156: USB DFU protocol used in the STM32™ bootloader
Note:
ST-LINK utilities must not be used when DFU Utility is running.
4.9
Gyroscope MEMS (ST MEMS L3GD20)
The L3GD20 is an ultra-compact, low-power, three-axis angular rate sensor. It includes a
sensing element and an IC interface able to provide the measured angular rate to the
external world through the I2C/SPI serial interface.
The L3GD20 has dynamically user-selectable full scales of ± 250 dps/ 500 dps/ ±2000 dps
and is capable of measuring rates.
The STM32F072RBT6 MCU controls this motion sensor through the SPI interface.
4.10
JP2 (Idd)
Jumper JP2, labeled Idd, allows the consumption of STM32F072RBT6 to be measured by
removing the jumper and connecting an ammeter.
4.11
•
Jumper on: STM32F072RBT6 is powered (default).
•
Jumper off: an ammeter must be connected to measure the STM32F072RBT6 current,
(if there is no ammeter, the STM32F072RBT6 is not powered).
Extension and RF EEprom connector
This connector is able to accept an Extension board or the RF EEprom board ANT7M24LR-A (see AN2972 for more details).
Figure 7. Extension and RF EEprom connector
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Hardware layout
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Table 4. Extension and RF EEprom connector (CN3)
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Pin
CN3
Designation
1
I2C SDA
Data signal for I2C
2
NC
Not Connected
3
I2C SCL
Clock signal for I2C
4
EXT_RESET
RESET signal for Extension board
5
3V
3 Volts power supply
6
NC
Not Connected
7
GND
Ground
8
5V
5 Volts power supply
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4.12
Hardware layout
OSC clock
By default, the STM32F072RBT6 clock source is the High-speed internal (HSI) RC
oscillator. Other clock sources are described hereunder.
4.12.1
OSC clock supply
If PF0 and PF1 are only used as GPIOs instead of as a clock, then SB17 and SB18 are
CLOSED and R36 and R37 are removed (SB19 must be OPEN).
•
•
•
4.12.2
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 STM32F072RBT6.
The required configuration is:
–
SB19 CLOSED and SB17 OPEN
–
R36 removed
Oscillator onboard (from X3 crystal, not provided). For typical frequencies and its
capacitors and resistors, please refer to the STM32F072RBT6 Datasheet.
The required configuration is:
–
SB17, SB18, SB19 OPEN
–
X3, R36, R37, C22, C23 soldered
Oscillator from external PF0 (from external oscillator through pin 7 of the P1
connector).
The required configuration is:
–
SB17 CLOSED
–
SB19 OPEN
–
R36 removed
OSC 32 KHz clock supply
If PC14 and PC15 are only used as GPIOs instead of as a clock, then SB13 and SB14 are
CLOSED, and R34 and R35 are removed.
•
•
Oscillator onboard (from X2 Crystal, not provided).
The required configuration is:
–
SB13, SB14 OPEN
–
X2, C19, C20, R21, R34, R35 soldered
Oscillator from external PC14 (from external oscillator trough the pin 5 of P1
connector).
The required configuration is:
–
SB14 CLOSED
–
R35 removed
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Hardware layout
4.13
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Solder bridges
Table 5. Solder bridges
Bridge
State
Description
ON
PF0, PF1 are connected to P1 (R36, R37 must not be fitted and SB19 must be
OFF).
OFF
X3, C22, C23, R36 and R37 provide a clock. PF0, PF1 are disconnected from P1.
ON
PC14, PC15 are only connected to P1. Remove only R34, R35
OFF
X2, C19, C20, R34 and R35 deliver a 32 KHz clock. PC14, PC15 are not
connected to P1.
OFF
MCO signal of STM32F103C8T6 is not used.
ON
MCO clock signal from STM32F103C8T6 is connected to OSC_IN of
STM32F072RBT6. (SB17 must be OFF).
SB2,4,7,9 (Default)
ON
Reserved, do not modify.
SB1,3,6,8 (Reserved)
OFF
Reserved, do not modify.
SB24,25 (GND,VDD)
ON
Reserved, do not modify.
SB11,12 (RX,TX)
OFF
Reserved, do not modify
OFF
Reserved to the linear touch sensor. PA2,3,6,7 and PB0,1 are not available.
ON
PA2,3,6,7 and PB0,1 are available then remove R38,39,40 and C26,27,28. (the
linear touch sensor is not available)
OFF
Reserved to the USB USER CN2. PA11,12 are not available.
ON
PA11,12 are available then remove R12,13. (the USB USER CN2)
ON
B1 pushbutton is connected to PA0.
OFF
B1 pushbutton is not connected to PA0.
ON
B2 pushbutton is connected to the NRST pin of the STM32F072RBT6 MCU.
OFF
B2 pushbutton is not connected the NRST pin of the STM32F072RBT6 MCU.
ON
T_NRST pin of the STM32F103C8T6 (ST-LINK/V2) and CN4.5 are connected to
the NRST pin of the STM32F072RBT6 MCU.
OFF
T_NRST pin of the STM32F103C8T6 (ST-LINK/V2) and CN4.5 are not connected
to the NRST pin of the STM32F072RBT6 MCU.
OFF
No incidence on STM32F103C8T6 (ST-LINK/V2) NRST signal.
ON
STM32F103C8T6 (ST-LINK/V2) NRST signal is connected to GND.
ON
VBAT Power is supplied by VDD
OFF
VBAT Power is supplied by P1.3 connector
ON
VDDIO2 Power is supplied by VDD
OFF
VDDIO2 Power is supplied by P2.18 connector
ON
VDDA Power is supplied by VDD through L1 inductance.
OFF
VDDA Power is supplied by P2.19 connector
SB17,18 (X3 crystal)
SB13,14 (X2 crystal)
SB19 (MCO)
SB27,28,29,30,31,32
(touch sensor)
SB20,23 (USB-USER)
SB21 (B1-USER)
SB22 (B2-RESET)
SB10 (NRST)
SB5 (STM_RST)
SB15 (VBAT)
SB16 (VDDIO2)
SB26 (VDDA)
18/31
DocID025474 Rev 2
UM1690
Extension connectors
The male headers P1 and P2 can connect the STM32F072 discovery board to a standard
prototyping/wrapping board. STM32F072RBT6 GPI/Os are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter.
Table 6. MCU pin description versus board function
DocID025474 Rev 2
SBx(1)
-
-
21
22
-
-
23
-
SB29
24
-
SB30
-
25
-
24
-
-
-
-
SB28
-
SB27
-
-
-
18
-
-
P2
-
17
-
-
16
-
15
-
10
-
P1
-
CN4
-
6
-
5
-
CN3
-
Power supply
-
Free I/O
PA9 PA8
-
-
PA5 PA4
-
-
PA1
-
USB USER
-
LED
-
Pushbutton
USER RESET
-
EXT/ RF-E2P
-
L3GD20
-
42
-
PA9
Linear touch sensor
41
-
PA8
-
23
-
PA7
-
22
TS_G1_IO4 TS_G1_IO3
PA6
-
21
-
PA5
TS_G2_IO4 TS_G2_IO3
20
-
PA4
-
17
BOOT0 System
PA3
NRST
16
-
PA2
-
15
-
PA1
-
14
-
PA0
-
7
-
NRST
-
60
-
BOOT0
Board function
-
LQFP64 pin num.
MCU pin
Main function
4.14
Hardware layout
19/31
30
20/31
PB2
28
PB3
55
PB4
56
PB5
57
PB6
58
PB7
59
PB8
61
PB9
62
PB10
29
DocID025474 Rev 2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
30
-
3
-
4
-
-
-
-
-
SBx(1)
-
29
-
P2
28
-
27
SB31
-
16
-
7
-
P1
-
-
CN4
CN3
Power supply
-
-
-
-
PA10 Free I/O
-
-
-
-
-
USB USER
LED
Pushbutton
EXT/ RF-E2P
L3GD20
Linear touch sensor
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DP DM
-
-
-
-
-
17
-
-
-
-
PA15
-
-
-
-
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
21
-
-
-
-
-
-
-
-
-
-
2
22
-
-
-
-
-
-
-
-
-
TS_G3_IO3 TS_G3_IO2
4
23
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8
-
-
-
-
9
-
-
-
-
10
-
3
11
-
-
-
PB9 PB8 PB7 PB6 PB5 PB4 PB3 PB2
-
-
-
-
-
-
MCU pin
-
-
-
-
SCL
-
-
-
-
-
System
27
-
PB1
-
26
-
PB0
SWCLK SWDIO
50
-
PA15
-
49
-
PA14
-
46
-
PA13
-
45
-
PA12
-
44
-
PA11
-
43
-
LQFP64 pin num.
PA10
-
Main function
Hardware layout
UM1690
Table 6. MCU pin description versus board function (continued)
Board function
SB23
SB20
SB32
PC3
11
PC4
24
PC5
25
PC6
37
PC7
38
PC8
39
PC9
40
PC10
51
DocID025474 Rev 2
-
PC10
-
-
-
-
-
-
-
-
27
26
15
-
-
-
-
-
-
-
-
-
-
-
-
26
-
25
-
14
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
13
-
-
-
-
-
-
-
-
12
-
-
11
-
-
30
-
-
-
-
31
-
-
-
-
32
-
-
PC4 PC3
-
-
-
INT2 INT1 CS_I2C/ SDA/ SDO SCL/
SPI
SDI/
SPC
-
-
-
-
SBx(1)
P2
P1
-
CN4
-
CN3
Power supply
Free I/O
USB USER
LED
Pushbutton
-
-
-
-
PB12
-
-
-
-
L3GD20
Linear touch sensor
SDA EXT/ RF-E2P
-
-
-
-
-
-
-
-
32
-
-
-
-
-
-
-
-
-
31
-
-
-
-
-
-
28
-
-
-
-
-
-
29
-
-
-
-
-
-
4
-
-
-
-
-
-
-
-
EXT_RESET
-
-
-
-
-
1
-
-
-
-
-
-
-
-
-
GREEN ORANGE BLUE RED
-
-
-
-
MCU pin
-
-
-
-
-
-
System
10
-
PC2
-
9
-
PC1
-
8
-
PC0
-
36
-
PB15
-
35
-
PB14
-
34
-
PB13
-
33
-
PB12
-
30
-
LQFP64 pin num.
PB11
-
Main function
UM1690
Hardware layout
Table 6. MCU pin description versus board function (continued)
Board function
21/31
30
22/31
DocID025474 Rev 2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
7
2
2
-
9
-
-
-
-
-
-
-
-
-
5
SB14
6
SB13
12
-
-
-
-
-
-
-
-
-
13
-
-
-
-
-
-
-
-
-
-
-
-
-
USB USER
LED
Pushbutton
EXT/ RF-E2P
L3GD20
Linear touch sensor
SBx(1)
P2
P1
CN4
CN3
Power supply
PC13 PC12 PC11 Free I/O
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
-
-
-
-
PD2
-
-
-
-
-
-
-
-
-
-
-
-
-
14
-
1
-
3
-
1
-
5
-
20
-
18
7
8
-
SB26
-
-
-
-
-
-
-
-
-
-
19
-
-
-
-
-
-
-
-
-
-
SB15
-
-
-
-
-
-
-
-
-
-
SB18
-
5
SB17
-
8
-
-
GND GND 3V 5V VDD VDD VDD VDD
-
-
-
-
-
-
-
MCU pin
-
-
-
-
-
VDDIO2 48
-
13
-
VDDA
-
1
-
VBAT
-
6
-
PF1
System
5
-
PF0
-
54
-
PD2
OSC32_OUT OSC32_IN
4
-
PC15
OSC_OUT OSC_IN
3
-
PC14
-
LQFP64 pin num.
2
-
Main function
PC13
-
-
53
-
-
-
PC12
-
-
52
-
-
-
PC11
-
-
-
Hardware layout
UM1690
Table 6. MCU pin description versus board function (continued)
Board function
3
SB16
UM1690
Hardware layout
Table 6. MCU pin description versus board function (continued)
SBx(1)
-
33
-
P1
33
P2
CN4
-
19
-
CN3
-
GND GND Power supply
Free I/O
-
USB USER
-
LED
-
Pushbutton
-
EXT/ RF-E2P
-
L3GD20
-
Linear touch sensor
-
-
System
Board function
-
LQFP64 pin num.
-
-
-
Main function
MCU pin
1. Depending on SBx, connected to STM32F072RBT6 MCU pin or board function. (See Schematics for more
detail)
DocID025474 Rev 2
23/31
30
Mechanical drawing
5
UM1690
Mechanical drawing
Figure 8. STM32F072 discovery board mechanical drawing
24/31
DocID025474 Rev 2
DocID025474 Rev 2
D
C
B
A
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
1
Header 33
P1
B_USER
NRST
STM32F0_USART1_RX
STM32F0_USART1_TX
PA10
PA9
NRST
PC13
PC14
PC15
PF0
PF1
GND
NRST
PC0
PC1
PC2
PC3
PA0
PA1
PA2
PA3
VSS3
VDD3
PA4
PA5
PA6
PA7
PC4
PC5
PB0
PB1
PB2
PB10
PB11
PB12
GND
GND
TS_G3_IO2
TS_G3_IO3
TS_G2_IO3
TS_G2_IO4
TS_G1_IO3
TS_G1_IO4
GND
VDD
VBAT
3V
B_USER
NRST
U_SENSOR_PB
SENSOR_PB.SchDoc
PA10
PA9
MCO
PA14
PA13
U_ST_LINK
ST_LINK_V2.SCHDOC
T_NRST
TCK/SWCLK
TMS/SWDIO
TS_G3_IO2
TS_G3_IO3
TS_G2_IO3
TS_G2_IO4
TS_G1_IO3
TS_G1_IO4
NRST
MCO
PA14
PA13
2
2
NRST
BOOT0
VSS3
VDD3
PF0
PF1
PD2
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
NRST
BOOT0
VSS3
VDD3
PF0
PF1
PD2
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
EXT_RESET
I2C2_SDA
I2C2_SCL
LD_U
LD_D
LD_L
LD_R
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC14
PC15
MCO
B_USER
TS_G1_IO3
TS_G1_IO4
TS_G2_IO3
TS_G2_IO4
TS_G3_IO2
TS_G3_IO3
USBF4_DM
USBF4_DP
SPI2_SCK
SPI2_MISO
SPI2_MOSI
NCS_MEMS_SPI
MEMS_INT1
MEMS_INT2
U_STM32Fx
STM32Fx.SchDoc
MCO
B_USER
TS_G1_IO3
TS_G1_IO4
TS_G2_IO3
TS_G2_IO4
TS_G3_IO2
TS_G3_IO3
USBF4_DM
USBF4_DP
SPI2_SCK
SPI2_MISO
SPI2_MOSI
NCS_MEMS_SPI
MEMS_INT1
MEMS_INT2
EXT_RESET
I2C2_SDA
I2C2_SCL
LD_U
LD_D
LD_L
LD_R
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC14
PC15
3
3
PA13
PA12
PA11
PA10
PA9
PA8
PC9
PC8
PC7
PC6
PB15
PB14
PB13
GND
PB9
PB8
VDD
BOOT0
PB7
PB6
PB5
PB4
PB3
PD2
PC12
PC11
PC10
PA15
PA14
VDDIO2
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
SPI2_SCK
SPI2_MISO
SPI2_MOSI
NCS_MEMS_SPI
MEMS_INT1
EXT_RESET
MEMS_INT2
I2C2_SDA
I2C2_SCL
USBF4_DM
USBF4_DP
LD_U
LD_D
LD_L
LD_R
USBF4_DM
USBF4_DP
SPI2_SCK
SPI2_MISO
SPI2_MOSI
NCS_MEMS_SPI
MEMS_INT1
MEMS_INT2
STM32F072B-DISCO
Number:MB1076 Rev: C.1(PCB.SCH)
Title:
4
Date: 10/28/2013
STMicroelectronics
Sheet 1
of
5
Rev A.0 --> PCB label MB1076 A-00
Rev B.1 --> PCB label MB1076 B-01, Silkscreen modification and values of R29,30,31,32.
Rev C.1 --> PCB label MB1076 C-01, Replace STM32F052 by STM32F072 on Silkscreen
VDD_USB
VDDA
VDD
5V
EXT_RESET
I2C2_SDA
I2C2_SCL
LD_U
LD_D
LD_L
LD_R
U_MEMS_USB
MEMS_USB.SchDoc
4
D
C
B
A
6
1
UM1690
Electrical schematics
Electrical schematics
Figure 9. STM32F072 discovery board
25/31
30
D
C
B
A
C11
100nF
3V
1
2
1
2
3
4
5
6
U5V
1
USB-MINI-typeB
VCC
DD+
ID
GND
SHELL
CN1
SB12
R8
R10
R9
R7
USB ST-LINK
Close to JP
Not Fitted
STM32F0_USART1_TX
PA9
PA10
SB11
TX
RX
4K7
R27
VBAT
PC13
PC14
PC15
OSCIN
OSCOUT
NRST
VSSA
VDDA
PA0
PA1
PA2
9013-SOT23
Not Fitted
STLINK_RX
1
2
3
4
5
6
7
8
9
10
11
12
3V
1K5
0
USB_DM
0
USB_DP
100K
JP1
AIN_1
OSC_IN
OSC_OUT
STM_RST
4K7
C9
20pF
[NA]
R26
8MHz
X1
R23
STM32F0_USART1_RX
SB5
R25
100K
3V
C10
20pF
Board Ident: PC13=0
100K
R19
SWIM_IN
SWIM
10K
3V
T1
1
R17
36K
R16
10K
U5V
T_JRST
R22
SWIM_IN
SWIM_RST
SWIM_RST_IN
T_JTCK
T_JTDO
T_JTDI
T_NRST
3
SWIM_IN
SWIM
STLINK_TX
STM_JTCK
48
47
46
45
44
43
42
41
40
39
38
37
2
2
3V
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
2
36
35
34
33
32
31
30
29
28
27
26
25
Idd
3V
JP2
LD2
LED, red
1K
R3
3V
T_SWDIO_IN
T_JTMS
T_JTCK
STM_JTMS
USB_DP
USB_DM
T_SWO
LED_STLINK
3V
U2
STM32F103C8T6
10K
R15
22
22
R24
R28
22
22
R21
R20
BAT60JFILM
D4
T_SWO
T_NRST
T_JTMS
T_JTCK
[NA] AIN_1
MCO
C5
100nF
Not Fitted
C8
100nF
MCO
U5V
3
BAT60JFILM
D1
EXT_5V, Input or Output
C7
100nF
C32
20pF
5V
5V
1
Vin
U1
COM
5
100
R5
100
R6
SWDIO
SWCLK
3V
PA14
PA13
NRST
4 R4
1
0
D3
LD_BICOLOR_CMS
_Green
Red
LD1
C2
100nF
Date: 10/22/2013
4
SWD
Sheet 2
of
5
EXT_3V, Input or Output
3V
3V
STM32F072B-DISCO ST-LINK/V2 (SWD only)
Number:MB1076 Rev: C.1(PCB.SCH)
Title:
STM_JTMS
STM_JTCK
BAT60JFILM
C6
1μF_X5R_0603
3
2
C1
10nF_X7R_0603
BYPASS
Vout
LD3985M33R
PWR
CN5
SB8
SB6
SB3
SB1
SB10
4
Jumpers ON --> DISCOVERY Selected
Jumpers OFF --> ST-LINK Selected
SB9
SB7
SB4
SB2
T_NRST
STMicroelectronics
C3
100nF
TCK/SWCLK
TMS/SWDIO
DEFAULT
LED_STLINK
3 INH
C4
GND
1μF_X5R_0603
RC Must be very close to STM32F103 pin 29
C12
100nF
VDD
100
R14
R44
100
1
2
3
4
5
6
Header 6
CN4
SWD
R18
3
2
DocID025474 Rev 2
4
RESERVED
26/31
1
2
3
4
1
D
C
B
A
Electrical schematics
UM1690
Figure 10. ST-LINK/V2 (SWD only)
DocID025474 Rev 2
D
C
B
PC15
PC14
PF1
PF0
MCO
SB19
PC14-OSC32_IN
PF1-OSC_OUT
PF0-OSC_IN
R34
R35
0
0
R37
R36
Not Fitted
1
SB26
C18
100nF
fcm1608-0603
L1
C29
100nF
VDD
SB15
C25
1uF
VDDA
C23
20pF
C22
20pF
C17
100nF
C24
100nF
SB16
VDDIO2
C16
1uF
C21
100nF
2
STM32F072RBT6
VBAT
VDDA
VDD_2
VDD_4
VSSA
VSS_2
VSS_4
47
12
31
63
PB0
PB1
PA11
PA12
PA6
PA7
PA2
PA3
PB0
PB1
SB31
SB23
SB29
PA6
PA7
PA11
PA12
SB27
PA2
PA3
SB32
SB20
SB30
SB28
SBx Must be very close to the STM32F072
2
VDD_USB VSS_USB
U4B
VBAT
1
13
32
64
48
VDD_USB
6.8pF
6.8pF
X2
MC306-G-06Q-32.768
C19
C20
X3
8MHz
Not Fitted
220
0
All this block must be very close to the STM32F072
SB13
PC15-OSC32_OUT
Must be close to the Crystal
SB14
SB18
SB17
MCO
Must be close to the Crystal
1
4
A
2
1
2
3
1
PB13
PB15
PB14
PC0
PC2
PC1
PB10
PB11
PC5
PC6
PC7
PC8
PC9
PA0
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PA13
PA14
PA15
PA8
PA9
PA10
PA4
PA5
PA0
PA1
26
27
28
55
56
57
58
59
61
62
29
30
33
34
35
36
14
15
16
17
20
21
22
23
41
42
43
44
45
46
49
50
3
BOOT0
60
USBF4_DM
USBF4_DP
USBF4_DM
USBF4_DP
TS_G1_IO3
TS_G1_IO4
TS_G2_IO3
TS_G2_IO4
TS_G3_IO2
TS_G3_IO3
4
Date: 10/28/2013
Sheet 3
of
STM32F072B-DISCO - STM32F072BCT6 MCU
Number:MB1076 Rev: C.1(PCB.SCH)
Title:
R33
VDD
5
Must be very close to
the STM32F072
510
SB25
SB24
BOOT0
TS_G1_IO3
TS_G1_IO4
TS_G2_IO3
TS_G2_IO4
TS_G3_IO2
TS_G3_IO3
NRST
4
NRST
VDD3
C33
100nF
VSS3
PD2
PF0-OSC_IN
PF1-OSC_OUT
VDD3
VSS3
PD2
PC15-OSC32_OUT
PC14-OSC32_IN
PC13
PC13
PC12
PC12
PC11
PC11
PC10
PC10
PC9
PC9
PC8
PC8
PC7
PC7
PC6
PC6
PC5
PC5
PC4
PC4
PC3
PC3
PC2
PC2
PC1
PC1
PC0
PC0
7
5
6
19
18
54
4
3
2
53
52
51
40
39
38
37
25
24
11
10
9
8
STMicroelectronics
BOOT0
NRST
PF0-OSC_IN
PF1-OSC_OUT
VDD_3
VSS_3
PD2
PC15-OSC32_OUT
PC14-OSC32_IN
PC13
PC12
PC11
PC10
PC9
PC8
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
SPI2_SCK
SPI2_MOSI
SPI2_MISO
NCS_MEMS_SPI
MEMS_INT2
MEMS_INT1
I2C2_SCL
I2C2_SDA
EXT_RESET
LD_U
LD_D
LD_L
LD_R
B_USER
STM32F072RBT6
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PA0/WKUP1
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
U4A
SPI2_SCK
SPI2_MOSI
SPI2_MISO
NCS_MEMS_SPI
MEMS_INT2
MEMS_INT1
I2C2_SCL
I2C2_SDA
EXT_RESET
LD_U
LD_D
LD_L
LD_R
B_USER
TS_G3_IO2
TS_G3_IO3
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PA13
PA14
PA15
USBF4_DM
USBF4_DP
PA0
PA1
TS_G1_IO3
TS_G1_IO4
PA4
PA5
TS_G2_IO3
TS_G2_IO4
PA8
PA9
PA10
3
D
C
B
A
UM1690
Electrical schematics
Figure 11. STM32F072RBT6 MCU
27/31
30
28/31
DocID025474 Rev 2
D
C
B
A
LD_D R31
510
LD_R R30
330
LD_D
LD_R
1
LD_L R32
1K
LD_U R29
1K
LD_L
LD_U
1
2
3
4
5
6
USB-MINI-typeB
VCC
DD+
ID
GND
SHELL
CN2
USB User
1
LED, green
LED, blue
LD5
5V
0
USBF4_DM
0
USBF4_DP
100K
LED, orange
LD6
LED, red
LD4
LD3
R13
R12
R11
BAT60JFILM
D2
L
USBF4_DM
USBF4_DP
LEDs
D
U
2
TP1
R
TP2
Test Point with hole
2
SPI2_SCK
SPI2_MOSI
SPI2_MISO
NCS_MEMS_SPI
MEMS_INT2
MEMS_INT1
3
R1
4K7
3V
R2
4K7
3V
2
4
6
8
SSM-104-L-DH
1
3
5
7
CN3
5V
EXT_RESET
4
EXT_RESET
L3GD20
MEMS
VDD_IO
SCL/SPC
SDA/SDI/SDO
SA0/SDO
CS_I2C/SPI
DRDY/INT2
INT1
GND
U3
VDD
VDD
C1
GND
GND
GND
GND
GND
16
15
14
13
12
11
10
9
10nF/25V
C13
4
Date: 10/28/2013
Sheet 4
100nF
C15
STM32F072B-DISCO MEMS and USB
Number:MB1076 Rev: C.1(PCB.SCH)
Title:
STMicroelectronics
1
2
3
4
5
6
7
8
3V
Extension / RF EEprom Connector
I2C2_SDA
I2C2_SCL
SPI2_SCK
SPI2_MOSI
SPI2_MISO
NCS_MEMS_SPI
MEMS_INT2
MEMS_INT1
I2C2_SDA
I2C2_SCL
3
of
10uF
C14
5
D
C
B
A
Electrical schematics
UM1690
Figure 12. MEMS and USB
D
C
B
1
2
1
R39
10K
C26
47nF
R38
10K
LS_P2
Linear Sensor
2
LS1
C28
47nF
TS_G2_IO4
TS_G2_IO3
PA7
TS_G3_IO3
PA3
PA2
PA6
TS_G3_IO2
Linear sensor made of 3 electrodes
C27
47nF
TS_G1_IO4
TS_G1_IO3
R40
10K
3
3
LS_P3
1
LS_P1
PB1
PB0
2
2
3
3
NRST
100nF
C30
SB21
RESET Button
NRST
B_USER
100nF
C31
SB22
10K
R41
R43
[NA]
VDD
R42
10K
4
4
Date: 10/22/2013
Sheet 5
of
5
STM32F072B-DISCO Linear Sensor and Push Button
Number:MB1076 Rev: C.1(PCB.SCH)
Title:
STMicroelectronics
PA0
USER & WAKE-UP Button
VDD
4
1
3
2
4
1
DocID025474 Rev 2
3
2
SW-PUSH-CMS
B1
SW-PUSH-CMS
B2
A
1
D
C
B
A
UM1690
Electrical schematics
Figure 13. Linear sensor and pushbutton
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30
Revision history
7
UM1690
Revision history
Table 7. Document revision history
Date
Revision
18-Dec-2013
1
Initial release.
2
Updated Figure 1: STM32F072 discovery board.
Added Section 4.7 and Section 4.8.
Added Figure 12: MEMS and USB and Figure 13: Linear
sensor and pushbutton.
23-June-2014
30/31
Changes
DocID025474 Rev 2
UM1690
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