ST STEVAL-PCC009V2 User manual

January 2011 Doc ID 17398 Rev 3 1/53
UM0935
User manual
STEVAL-PCC009V2, IBU universal interface
based on the STM32F103RB
Introduction
The IBU universal interface (UI) is a tool which contains:
■An IBU UI board (STEVAL-PCC009V2), which is an STM32-based USB-to-serial
interface bridge consisting of a configurable 10-pin and 30-pin interface
■Dll files which are available software resources that allow the user to develop customized
GUIs as per application requirements.
This user manual explains the functions of the IBU UI tool (STEVAL-PCC009V2) and how to
use it. IBU UI is a complete tool to rapidly develop application prototypes. On this
demonstration board, the STM32 microcontroller is used as the interface between the PC
and the end device. Due to intelligence available in the STM32 device, various
communication peripherals are multiplexed with GPIOs and ADC and PWM channels in
both a 10-pin and 30-pin interface.
In these interfaces, there is a provision to connect a device which can communicate using
I2C, SPI and UART. Therefore, the IBU UI tool allows the user to connect a serial
communication based device to the PC. At the same time it allows the user to control some
GPIOs available in 10-pin and 30-pin interfaces and set them in input/output modes, as per
application requirements.
Power to the board is provided from a USB mini B-type connector.
DLL files are provided with this tool so that the user can make their own customized PC GUI
as per requirements.
Therefore the IBU UI tool, by taking care of all the microcontroller complexities, provides an
option for the end user to focus on its application development, therefore increasing its
efficiency and time to market.
The IBU UI tool supports two modes:
■Application mode: this PC GUI allows interfacing of the SPI, I2C and UART interface and
controlling the communication parameters with the help of the GUI itself
■DFU mode: this mode allows the user to change the firmware, if required, to suit its
applications.
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Contents UM0935
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Contents
1 Section organization of the user manual . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Hardware installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.2 Jumper/header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 Selection of the interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Running the IBU UI tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Using the I2C interface of the 10-pin header . . . . . . . . . . . . . . . . . . . . . . 16
3.1.1 Steps for making the hardware connection . . . . . . . . . . . . . . . . . . . . . . 16
3.1.2 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.3 Using GPIOs in PWM mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.4 Using GPIOs as ADC mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.5 I2C read and write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2 Using the SPI interface of the 10-pin connector . . . . . . . . . . . . . . . . . . . . 18
3.2.1 Steps for making hardware connection . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2.2 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2.3 Using GPIOs as PWM settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.4 Using GPIOs as ADC settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.5 SPI header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.6 SPI read and write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3 Using the UART(SCI) interface of the 10-pin header . . . . . . . . . . . . . . . . 21
3.3.1 Steps for making hardware connection . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.2 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.3 Using GPIOs in PWM settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.4 Using GPIO in ADC settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.5 UART1 (SCI1) header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.6 UART1 (SCI1) read and write operation . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 Using the I2C interface of the 30-pin header . . . . . . . . . . . . . . . . . . . . . . 24

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3.4.1 Steps for making hardware connection . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.4.2 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.4.3 Using GPIOs in PWM mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.4.4 Using GPIOs in ADC mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4.5 I2C header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4.6 I2C read and write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.5 Using the SPI interface of the 30-pin header . . . . . . . . . . . . . . . . . . . . . . 27
3.5.1 Steps for making hardware connection . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.5.2 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.5.3 Using GPIOs in PWM mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.5.4 Using GPIOs in ADC mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.5.5 SPI header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.5.6 SPI read and write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.6 Using the UART1(SCI1) interface of the 30-pin header . . . . . . . . . . . . . . 31
3.6.1 Steps for making hardware connection . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.6.2 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.6.3 Using GPIOs in PWM mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.6.4 Using GPIOs in ADC mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.6.5 UART1 (SCI1) header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.6.6 UART1 (SCI1) read and write operation . . . . . . . . . . . . . . . . . . . . . . . . 34
3.7 Using UART2 (SCI2) interface of 30-pin header . . . . . . . . . . . . . . . . . . . 35
3.7.1 Steps for making hardware connection . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.7.2 Select UART2 (SCI2) interface using DLL software . . . . . . . . . . . . . . . 36
3.7.3 GPIO settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.7.4 Using GPIOs in PWM mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.7.5 Using GPIOs in ADC mode settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.7.6 UART2 (SCI2) header settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.7.7 UART2 (SCI2) read and write operation . . . . . . . . . . . . . . . . . . . . . . . . 38
4 Working in DFU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Appendix A Schematics and BOM list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Appendix B All possible interpretations of the 10-pin interface . . . . . . . . . . . . 47
Appendix C All possible interpretations the of 30-pin interface . . . . . . . . . . . . 48

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Appendix D Tables and figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

UM0935 List of tables
Doc ID 17398 Rev 3 5/53
List of tables
Table 1. Section to be referred to for a particular mode of a 10-pin or 30-pin interface . . . . . . . . . . . 7
Table 2. Availability of various communication peripherals and GPIOs on 10-pin and 30-pin
interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 3. Number of total GPIOs, PWM GPIOs, and ADC channels in 10-pin and 30-pin headers in
various modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 4. BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 5. All possible Interpretations of the 10-pin interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 6. All possible interpretations of the 30-pin interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 7. GPIO modes of 10-pin interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 8. GPIO modes of 30-pin interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 9. PWM channel settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 10. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

List of figures UM0935
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List of figures
Figure 1. Installation Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2. License Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3. Destination folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4. Installation ongoing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. Installation complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. STEVAL-PCC009V2, IBU universal interface board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. Jumper J1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8. Jumper J2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9. Enumeration result . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 10. J1 Interpretation for I2C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 11. Connection diagram for I2C interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 12. Transfer sequence of one byte of I2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 13. J2 interpretation for SPI interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 14. Connecting diagram for the 10-pin SPI interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 15. J1 interpretation for UART (SCI) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 16. Connection diagram for the 10-pin UART interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 17. J2 Interpretation for I2C interface of 30-pin header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 18. Connection diagram for I2C interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 19. Transfer sequence of one byte of I2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 20. J2 Interpretation for SPI interface of 30-pin header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 21. Connection diagram for 30-pin SPI interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 22. Transfer sequence of one byte of SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 23. J2 interpretation for UART1 (SCI1) interface of 30-pin header. . . . . . . . . . . . . . . . . . . . . . 32
Figure 24. Connection diagram for 30-pin UART1 interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 25. Transfer sequence of one byte of UART1 (SCI1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 26. J2 interpretation for UART2 (SCI2) interface of 30-pin header. . . . . . . . . . . . . . . . . . . . . . 36
Figure 27. Connection diagram for 30-pin UART2 interface/GPIOs . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 28. Transfer sequence of one byte of UART2 (SCI2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 29. Enumeration in DFU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 30. Microcontroller section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 31. JTAG interface, mode selection switch and power supply section . . . . . . . . . . . . . . . . . . . 41
Figure 32. 10-pin com interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 33. 30-pin com interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 34. PWM signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

UM0935 Section organization of the user manual
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1 Section organization of the user manual
The user must go through Section 2.1 to Section 2.4 of this manual to perform the initial
setup that is required to run the IBU UI tool. After reading these sections, the user can
understand how to install the software and hardware setup.
To choose how to select a communication interface, the user must read Section 2.5, this
section explains the seven modes (as shown in Tab l e 1 ) that are available in the 10-pin and
30-pin header and how to select which interface mode is best suited to the development of
their application.
After this, the user must decide which communication interface of a 10-pin or 30-pin header
should be used. As shown in Ta b l e 1 below, Section 3 is documented in such a manner that
the user need only refer to the section corresponding to the communication interface to be
used. For instance, if the user wants to use the UART2 interface mode of the 30-pin header,
they need only refer to Section 3.7 of this document.
Section 4 explains how to use the DFU capability of this tool. This section needs to be
referred to when there it is necessary to update the firmware of the microcontroller of this
tool.
Table 1. Section to be referred to for a particular mode of a 10-pin or 30-pin
interface
Header Interface Refer to section
10-pin header
I2C mode 3.1
SPI mode 3.2
UART mode 3.7
30-pin header
I2C mode 3.7
SPI mode 3.7
UART1 mode 3.7
UART2 mode 3.7

Getting started UM0935
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2 Getting started
2.1 System requirements
In order to use the IBU universal interface (IBU UI) tool with a Windows operating system, a
recent version of Windows, such as Windows 2000 or Windows XP, must be installed on the
PC.
The version of the Windows OS installed on the PC may be determined by clicking on the
“System” icon in the control panel.
2.2 Package contents
The IBU UI tool includes the following items:
●Hardware content:
– One board
– BOM list
–Schematic
●Software content:
– DFU firmware
– DLL files of the I2C, SPI and UART interface of the 10-pin header
– DLL files of the I2C, SPI, and UART1 and UART2 interface of the 30-pin header
– Source code (including DFU)
●Documentation:
– User manual (to work in functional mode)
– User manual (to work in DFU mode)
– Help file on how to use the DLL file
2.3 Software installation
The DLLs are provided with the tool, mainly in the form of a CD as a part of the package.
The folder contains the setup files.
●Step1: as soon as the user clicks the setup.exe icon, the following window appears:

UM0935 Getting started
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Figure 1. Installation Window
●Step 2: read the license file and click the “Next” button if you accept the license.
Figure 2. License Window

Getting started UM0935
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●Step 3: select the folder in which to install the software. By default it installs the
software in the following path: C:\Program Files\STMicroelectronics\USB to serial
interface SDK\Dll&Libraries
Figure 3. Destination folder
●Step 4: after selecting the folder and clicking the “Next” button, the software starts
installing.
Figure 4. Installation ongoing