NXP Semiconductors OM13500 User Manual
NXP Semiconductors OM13500 User Manual

NXP Semiconductors OM13500 User Manual

Demo board

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UM10744
OM13500 & OM13500A, PCA9620 & PCx8537 demo board
Rev. 1 — 23.September 2013
Document information
Info
Content
LCD, Liquid Crystal Display, LCD driver, segment driver, PCA9620,
Keywords
PCF8537, PCA8537, LPCXpresso, Vertical Alignment (VA)
The OM13500 is an LCD demo board which can be used to demonstrate
Abstract
and evaluate the PCA9620 segment driver. The OM13500A is the same
board, but instead of PCA9620, PCA8537 is mounted. The latter has a
reduced number of segment outputs and therefore is not able to drive all
display elements of the display on the board. The only affected part is the
dot matrix area on the display.
The board is controlled by an LPCXpresso micro controller board, which
contains the LPC1115, a Cortex M0 controller. A free IDE can be
downloaded in order to modify the software.
Supply of the board can be via two AA batteries, an AC adapter or USB.
User manual

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Summary of Contents for NXP Semiconductors OM13500

  • Page 1 LCD, Liquid Crystal Display, LCD driver, segment driver, PCA9620, Keywords PCF8537, PCA8537, LPCXpresso, Vertical Alignment (VA) The OM13500 is an LCD demo board which can be used to demonstrate Abstract and evaluate the PCA9620 segment driver. The OM13500A is the same board, but instead of PCA9620, PCA8537 is mounted.
  • Page 2 UM10744 NXP Semiconductors OM13500 & OM13500A user manual Revision history Date Description 20130923 Initial version Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com UM10744 All information provided in this document is subject to legal disclaimers.
  • Page 3: Contents

    The difference lies only in the segment driver which is mounted on the board. Only one driver can be mounted. For OM13500 this is the PCA9620. The PCA9620 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD) with low multiplex rates.
  • Page 4: Board Description And Layout

    Fig 1 shows the top view of the board. Fig 1. Top view of OM13500 demo board For best optical performance, remove the protective foil from the display. UM10744 All information provided in this document is subject to legal disclaimers.
  • Page 5: Power Supply

    NXP Semiconductors OM13500 & OM13500A user manual On the board, below the NXP logo, is indicated which version of the board (OM13500 with PCA9620 or OM13500A with PCA8537) it is. The LCD driver positions are located on the reverse side of the PCB, below the LCD. This location was chosen for layout reasons, as it results in shorter traces from the driver to the LCD.
  • Page 6: Lpcxpresso

    UM10744 NXP Semiconductors OM13500 & OM13500A user manual For better contrast it is possible to supply the base board via USB connector P1 and the LPCXpresso via a second USB cable connected to the computer. 2.2 LPCXpresso LPCXpresso is a low-cost development platform available from NXP. The software consists of an enhanced, Eclipse-based IDE, a GNU C compiler, linker, libraries, and an enhanced GDB debugger.
  • Page 7: Use Of Internal / External Oscillator

    UM10744 NXP Semiconductors OM13500 & OM13500A user manual cases, communication with the LCD driver is through the I C-bus. This are pins 40 and 41 of the LPCXpresso connector. • IDD_IC3: This jumper is not soldered onto the board during manufacturing.
  • Page 8 Fig 2. OM13500 schematic...
  • Page 9 UM10744 NXP Semiconductors OM13500 & OM13500A user manual Fig 3. PCB layout The LPCXpresso board and battery holder are on the reverse side of the base board. UM10744 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
  • Page 10: Software Code Example

    UM10744 NXP Semiconductors OM13500 & OM13500A user manual 4. Software code example Section 8 of the PCA9620 data sheet contains all the commands and their description. In order to be able to write software for this driver, it will be necessary to read the datasheet.
  • Page 11: References

    UM10744 NXP Semiconductors OM13500 & OM13500A user manual 5. References The documents listed below provide further useful information. They are available at NXP’s website www.nxp.com. [1] LPCXPresso: Getting started with NXP LPCXpresso [2] PCA9620: Product data sheet [3] PCA8537: Product data sheet...
  • Page 12: Legal Information

    In no event shall NXP Semiconductors be liable for any indirect, incidental, remains with customer. punitive, special or consequential damages (including - without limitation -...
  • Page 13: List Of Figures

    UM10744 NXP Semiconductors OM13500 & OM13500A user manual 7. List of figures Fig 1. Top view of OM13500 demo board ....4 Fig 3. PCB layout ............9 Fig 2. OM13500 schematic ......... 8 UM10744 All information provided in this document is subject to legal disclaimers.
  • Page 14: Table Of Contents

    UM10744 NXP Semiconductors OM13500 & OM13500A user manual 8. Contents Introduction ............3 Board description and layout ......4 Power Supply ............. 5 LPCXpresso ............6 Switches ............. 6 Jumpers ............. 6 Use of internal / external oscillator ..... 7 Connectors ............
  • Page 15 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: OM13500UL OM13500AUL...

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