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AN4627
Application note
Getting started with EVAL-L9958
Introduction
The EVAL-L9958 is the evaluation board designed to provide the user with a platform to
evaluate L9958, the motor driver for DC motors.
The board offers all the inputs and outputs capabilities necessary to configure the device
and to monitor diagnostic functionalities. A lot of test points allow to evaluate and monitor
the signals and the HW status of the device.
The selected solution is the quickest way to discover the L9958 device, to develop the code
to program and control the device and to debug the application.
Figure 1. EVAL-L9958 evaluation board
November 2014
DocID027205 Rev 1
1/11
www.st.com
1
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Summary of Contents for ST EVAL-L9958
- Page 1 Getting started with EVAL-L9958 Introduction The EVAL-L9958 is the evaluation board designed to provide the user with a platform to evaluate L9958, the motor driver for DC motors. The board offers all the inputs and outputs capabilities necessary to configure the device and to monitor diagnostic functionalities.
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Page 2: Table Of Contents
Contents Getting started with EVAL-L9958 ....... 5 Board description and connections ......5 Device configuration . - Page 3 AN4627 List of tables List of tables Table 1. Microcontroller connector (J8) – Pin description........6 Table 2.
- Page 4 EVAL-L9958 - Schematic diagram ........
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Page 5: Getting Started With Eval-L9958
Board description and connections Figure 2. Top side – LEDs and Rest Rext (external reference resistor) The EVAL-L9958 evaluation board size is 78 mm x 57 mm, the PCB is FR4 glass epoxy support with 2 copper layers. The device L9958 is soldered on the top side; the copper area on top and bottom side of the PCB is used as heatsink. - Page 6 Getting started with EVAL-L9958 AN4627 Table 1. Microcontroller connector (J8) – Pin description Pin name Description PWM input signal DI input signal DIR input signal SI input signal EN input signal CS - SPI SCK - SPI SO - SPI...
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Page 7: Device Configuration
AN4627 Getting started with EVAL-L9958 Device configuration L9958 is a configurable device via SPI. The SPI communication allows the user to read information from the device and diagnostic function. DocID027205 Rev 1 7/11... -
Page 8: Appendix A General Handling Precautions
General handling precautions AN4627 Appendix A General handling precautions The following precautions are recommended when using the EVAL-L9958 board: • Do not modify or manipulate the board when the DC supply is connected to the board. • Any equipment or tool used for any manipulation of the semiconductor devices or board modification should be connected to ground to avoid or limit the ESD. -
Page 9: Appendix B Schematic Diagram
AN4627 Schematic diagram Appendix B Schematic diagram Figure 3. EVAL-L9958 - Schematic diagram DocID027205 Rev 1 9/11... -
Page 10: Revision History
Revision history AN4627 Revision history Table 3. Document revision history Date Revision Changes 25-Nov-2014 Initial release. 10/11 DocID027205 Rev 1... - Page 11 ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
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