ST STM320518-EVAL User manual

May 2012 Doc ID 023059 Rev 1 1/52
UM1537
User manual
STM320518-EVAL evaluation board
Introduction
The STM320518-EVAL evaluation board is designed as a complete demonstration and
development platform for STMicroelectronic's ARM cortex-M0 core-based
STM32F051R8T6 microcontroller. It features two I2Cs, two SPIs, two USARTs, a 12-bit
ADC, a 12-bit DAC, two GP comparators, internal 8 KB SRAM and 64 KB Flash, touch
sensing, CEC and SWD debugging support.
The full range of hardware features on the board is able to help you evaluate all peripherals
(motor control connector, RS-232, RS-485, audio DAC, linear sensor, microphone ADC,
TFT LCD, IrDA, IR LED, IR receiver, LDR, MicroSD card, CEC on two HDMI connectors, RF
E2PROM, temperature sensor and so on) and develop your own applications. Extension
headers make it possible to easily connect a daughterboard or wrapping board for your
specific application.
An ST-LINK/V2 is integrated on the board as an embedded in-circuit debugger and
programmer for the STM32 MCU.
Figure 1. STM320518-EVAL evaluation board
Table 1. Applicable tools
Type Part number
Evaluation tools STM320518-EVAL
www.st.com

Contents UM1537
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Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Delivery recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Development and debug support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Boot option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.7 RS-232, RS-485 and IrDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8 Linear sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.9 MicroSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.10 Analog input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11 LDR (light dependent resistor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.13 Display and input devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.14 RF E2PROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.15 HDMI CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.16 IR LED and IR receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.17 Motor control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1 Motor control connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2 RF E2PROM connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3 HDMI sink connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 HDMI source connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5 Daughterboard extension connector CN5 and CN6 . . . . . . . . . . . . . . . . . 24

UM1537 Contents
Doc ID 023059 Rev 1 3/52
3.6 RS-232 and RS-485 connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.7 Analog input connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.8 High density SWD connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.9 Standard SWD connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.10 Audio jack CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.11 ST-LINK/V2 programming connector CN12 . . . . . . . . . . . . . . . . . . . . . . . 29
3.12 ST-LINK/V2 USB type B connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . 29
3.13 MicroSD connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.14 Power connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4 Board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix A STM320518-EVAL I/O assignments . . . . . . . . . . . . . . . . . . . . . . . . . 47
Appendix B Mechanical dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

List of tables UM1537
4/52 Doc ID 023059 Rev 1
List of tables
Table 1. Applicable tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Third-party toolchain support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 3. Power source related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 4. Power mode related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 5. 8 MHz crystal X1 related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6. 32 kHz crystal X2 related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 7. Boot related switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 8. Boot0 related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 9. Audio related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 10. RS-232 and IrDA related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 11. RS-485 related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 12. LCD modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 13. Motor control related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 14. Motor control connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 15. RF E2PROM connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 16. HDMI sink connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 17. HDMI source connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 18. Daughterboard extension connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 19. Daughterboard extension connector CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 20. RS-232 and RS-485 connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 21. Analog input-output connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 22. High density SWD debugging connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 23. Standard SWD debugging connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 24. USB type B connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 25. MicroSD connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 26. STM32F051R8T6 MCU pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 27. Mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 28. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

UM1537 List of figures
Doc ID 023059 Rev 1 5/52
List of figures
Figure 1. STM320518-EVAL evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. STM320518-EVAL evaluation board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. STM320518-EVAL evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5. STM320518-EVAL evaluation board motor control PCB reworks . . . . . . . . . . . . . . . . . . . 20
Figure 6. Motor control connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 7. RF EEPROM daughterboard connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 8. HDMI sink connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 9. HDMI source connector CN4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 10. RS-232 and RS-485 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 11. Analog input-output connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 12. High density SWD debugging connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 13. Standard SWD debugging connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 14. USB type B connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 15. MicroSD connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 16. Power supply connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 17. STM320518-EVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 18. MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 19. Audio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 20. HDMI_CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 21. LCD and micro SD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 22. Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 23. RS-232, RS-485 and IrDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 24. Temperature sensor and RF EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 25. Linear sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 26. ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 27. SWD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 28. Motor control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 29. Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 30. 2.4 inch LCD module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 31. Mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Overview UM1537
6/52 Doc ID 023059 Rev 1
1 Overview
1.1 Features
●Three 5 V power supply options: power jack, ST-LINK/V2 USB connector or
daughterboard
●Audio speaker and microphone connected to DAC and ADC of STM32F051R8T6
●2 Gbyte or more SPI interface MicroSD card
●I2C compatible serial interface temperature sensor
●RF E2PROM
●RS-232 and RS-485 communication
●IrDA transceiver
●IR LED and IR receiver
●SWD debug support, ST-LINK/V2 embedded
●240 x 320 TFT color LCD connected to SPI interface of STM32F051R8T6
●Joystick with 4-direction control and selector
●Reset, tamper and user buttons
●4 color LEDs
●Extension connector for daughterboard or wrapping board
●MCU voltage choice fixed at 3.3 V or adjustable from 2 to 3.6 V
●Linear sensor
●Light dependent resistor (LDR)
●Potentiometer
●Two HDMI connectors with DDC and CEC
●Motor control connector
●Boards RoHS compliant (lead free)
1.2 Demonstration software
Demonstration software is preloaded in the board's Flash memory for easy demonstration of
the device peripherals in stand-alone mode. For more information and to download the
latest version available, refer to the STM320518-EVAL demonstration software available at
www.st.com.
1.3 Order code
To order the STM32F051R8T6 evaluation board, use the order code STM320518-EVAL.

UM1537 Overview
Doc ID 023059 Rev 1 7/52
1.4 Delivery recommendations
Some verifications are needed before using the board for the first time to make sure that
nothing has been damaged during shipment and that no components are unplugged or lost.
When the board is extracted from its plastic bag, please check that no component remains
in the bag.
The main components to verify are:
1. The 8 MHz crystal (X1) which may have been removed from its socket by a shock.
2. The MicroSD card which may have been ejected from the connector CN14 (left side of
the board).
3. The dual interface EEPROM board (ANT7-M24LR-A) which may have been unplugged
from the connector CN2 (top right corner of the board).

Hardware layout and configuration UM1537
8/52 Doc ID 023059 Rev 1
2 Hardware layout and configuration
The STM320518-EVAL evaluation board is designed around the STM32F051R8T6 (64-pin
LQFP package). The hardware block diagram shown in Figure 2 illustrates the connection
between the STM32F051R8T6 and peripherals (motor control connector, RS-232, RS-485,
audio DAC, linear sensor, microphone ADC, TFT LCD, IrDA, IR LED, IR receiver, LDR,
MicroSD card, CEC and DDC on two HDMI connectors, RF E2PROM and temperature
sensor and so on). Figure 3 shows where you can locate these features on the evaluation
board.
Figure 2. Hardware block diagram
34-&24
23
TRANSCEIVER
)R$!
TRANSCEIVER
6REGULATOR
#OLOR,#$
-ICRO3$
CARD
3PEAKER
!MPLIFIER
($-)SINK
,%$S
0OTENTIOMETER
2323
$"CONNECTOR
$!#
'0)/
)#
%XTENSION
CONNECTORFOR
'0)/S
53!24
4EMPERATURE
SENSOR 37$
*OYSTICK
6TO6
ADJUSTABLE
REGULATOR
!$#
%MBEDDED
34,).+6
53"4YPE"
CONNECTOR
-ICRO0HONE
!MPLIFIER
4AMPER
BUTTON
)2/54
2&
%%02/-
6POWER
SWITCH
#%#
*4!'37$
CONNECTOR
23
TRANSCEIVER
30)
,INEAR
SENSOR 43#ONTROLLER
,$2 #-0?).P
6REGULATOR
($-)
SOURCE
)2,%$
)2RECEIVER4)-?#(
-OTORCONTROL
CONNECTOR
)#
6OLTAGE
TRANSLATOR
6OLTAGE
TRANSLATOR
-36


UM1537 Hardware layout and configuration
Doc ID 023059 Rev 1 9/52
Figure 3. STM320518-EVAL evaluation board layout
U22
microphone
CN4
HDMI_Source
connector
CN1
motor control connector
RV3
potentiometer
B1
reset key
CN 2
RF E2PROM
connector
LD5
IR LED
CN7
RS-232/RS-485
connector
CN16
TFT LCD
U1
IrDA transceiver
4 colorsLEDS
LD7
ST-LINK/V2
COM LED
CN3
HDMI_Sink
connector
U2
IR receiver
CN15
power jack
B3
user button
S1
Linear sensor
U21
joystick
B2
tamper button
RV2
VDD_Adjustment
CN13
ST-LINK/V2 USB
connector
CN14
MicroSD Card
U4
STM32F051R8T6
CN11
audio jack
CN10
SWD connector
CN5, CN6
extension header
MS30809V1

Hardware layout and configuration UM1537
10/52 Doc ID 023059 Rev 1
2.1 Development and debug support
Version 2 of the ST-LINK (ST-LINK/V2) is embedded on the board. This tool allows onboard
program loading and debugging of the STM32F051R8T6 using the SWD interface. The
third-party debug tools are also supported by the SWD connector CN10.
A specific driver must be installed on your PC for communication with the embedded ST-
LINK/V2. This driver, called ST-LINK_V2_USBdriver.exe is available on the web. To
download and install this driver, refer to the software and development tools page for the
STM32F0 family on www.st.com.
Third-party toolchains, such as Atollic TrueSTUDIO, Keil MDK-ARM, IAR EWARM and
TASKING VX-toolset for ARM Cortex-M, support ST-LINK/V2 according to Ta ble 2.
The embedded ST-LINK/V2 is connected to the PC via a standard USB cable from
connector CN13. The bicolor LED LD7 (COM) indicates the status of the communication as
follows.
●Slow blinking Red/Off: at power-on before USB initialization.
●Fast blinking Red/Off: after the first correct communication between the PC and ST-
Link/V2 (enumeration).
●Constant Red On: when initialization between the PC and ST-LINK/V2 is successfully
finished.
●Constant Green On: after successful target communication initialization.
●Blinking Red/Green: during communication with the target.
●Red On: communication is finished and OK.
●Orange On: communication failure.
Note: The board can be powered via CN13 (embedded ST/LINK/V2 USB connector) even if an
external tool is connected to CN9 (high density SWD connector) or CN10 (SWD connector).
Table 2. Third-party toolchain support
Manufacturer Toolchain From version...
Atollic TrueSTUDIO 2.1
IAR EWARM 6.20.4
Keil MDK-ARM 4.20
TASKING VX-toolset for ARM Cortex-M 4.0.1