ST UM1682 Bedienungsanleitung
June 2014 DocID025392 Rev 2 1/11
UM1682
User manual
STEVAL-VNH5050A Evaluation board
Introduction
STEVAL-VNH5050A offers dedicated power stage and controls suitable for electric DC
motor driving. This evaluation board features the VNH5050A. It is an H-bridge belonging to
the VNH Motor Driver series based on VIPower
®
proprietary technology. Typical
applications are dual washer pump and seat regulation.
This evaluation board consists of a motherboard (STM8 Universal Board) and a daughter-
board. The motherboard, based on STM8 microcontroller, provides the logic section for
monitoring and driving the VNH5050A assembled in the daughter-board. With the aim of
simplifying board usage and settings, ST provides dedicated and user-friendly software
including a Graphic User Interface (GUI). The GUI allows setting VNH5050A parameters
(PWM, Motor direction…), while showing real time device diagnostic information, such as
current output evolution, battery voltage monitoring, board temperature and much more.
Figure 1. STEVAL-VNH5050A
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www.st.com
Contents UM1682
2/11 DocID025392 Rev 2
Contents
1 Hardware description and setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Components description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Board connections and setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 USB Driver installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Graphical User Interface (GUI) installation . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Graphical User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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UM1682 List of figures
3
List of figures
Figure 1. STEVAL-VNH5050A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. STEVAL-VNH5050A block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3. STEVAL-VNH5050A connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 4. Driver installation window (1/2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5. Driver installation window (2/2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 6. GUI installation (1/2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 7. GUI installation (2/2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 8. Main Window (1/2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 9. Main Window (2/2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 10. Current measurement (Graph) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 11. Driving profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Hardware description and setup UM1682
4/11 DocID025392 Rev 2
1 Hardware description and setup
This section provides a description of the main components of this evaluation kit, giving
instruction for a quick setup of the motor control system.
1.1 Components description
The evaluation kit consists of two main components:
•Mother board based on STM8A microcontroller, interfacing host PC with H-Bridge
controller. The communication with the PC is established through isolated USB.
•Daughter Board assembling VNH5050A and the reverse battery protection. The DC
motor has to be connected to this module.
The daughter board and the mother board are provided already properly plugged .
Figure 2. STEVAL-VNH5050A block diagram
1.2 Board connections and setup
Below figure shows the placement of the connectors to be used for supplying the evaluation
board, plugging the electric DC motor and connecting with a host PC through USB cable.
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UM1682 Hardware description and setup
10
Figure 3. STEVAL-VNH5050A connections
Jumpers are already set in their default position.
Table 1. Motherboard jumper configuration
Jumper Description Default Position
JP2 + 5V_DB Not present
JP2 + 5V_STM8 Present
JP4 RxD USART
JP5 TxD USART
JP6 Reset STM8
JP7 Swim STM8
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'&0RWRU± 3KDVH$
'&0RWRU± 3KDVH%
'DXJKWHU%RDUG6XSSO\9
86%FRQQHFWRU
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Software installation UM1682
6/11 DocID025392 Rev 2
2 Software installation
2.1 USB Driver installation
The following installation procedure starts automatically after plugging the Evaluation Board
to the host PC.
Figure 4. Driver installation window (1/2)
Figure 5. Driver installation window (2/2)
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91+VRIWZDUHLQVWDOODWLRQSDFNDJH
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UM1682 Software installation
10
2.2 Graphical User Interface (GUI) installation
Launching Setup.exe, GUI installs to the destination folder indicated by the wizard.
Default folder is "C:\Program Files(x86)\VNHFULLBridge", but the user is free to indicate
another path name and folder.
Figure 6. GUI installation (1/2)
Figure 7. GUI installation (2/2)
GAPG2406141159RI
Program folder on Start menu
GUI dekstop icon
GAPG2406141206RI
Graphical User Interface UM1682
8/11 DocID025392 Rev 2
3 Graphical User Interface
Figure 8. Main Window (1/2)
Figure 9. Main Window (2/2)
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UM1682 Graphical User Interface
10
Figure 10. Current measurement (Graph)
Figure 11. Driving profiles
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Revision history UM1682
10/11 DocID025392 Rev 2
4 Revision history
Table 2. Document revision history
Date Revision Changes
16-Oct-2013 1 Initial release.
24-Jun-2014 2 Added Section 2.1 and Section 2.2.
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