NXP Semiconductors UM10317 User Manual

UM10317

PCA9633 demonstration board OM6282

Rev. 01 — 15 December 2008 User manual

Document information

Info Content Keywords I2C, PCA9633, RGB, RGBA, 2 x 8-bit PWM Abstract The OM6282 is an add-on to NXP’s I2C 2005 -1 demo board. This daughter

board makes it easy to test and design with the PCA9633, a 4-bit Fast-mode Plus (Fm+) LED driver. These boards, along with the I2CUSB Lite GUI (PC based), provide an easy to use evaluation platform.

NXP Semiconductors

UM10317

PCA9633 demonstration board OM6282

Revision history

Rev Date Description

01 20081215 user manual; initial release

Contact information

For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com

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1. Introduction

The PCA9633 evaluation board features LEDs for color mixing, blinking and dimming demonstrations. A graphical interface allows the user to easily explore the different functions of the driver. The board can be connected in series with other I to create an evaluation system.

The IC communicates to the host via the industry standard I evaluation software runs under MicroSoft Windows PC platform.

2. Features

• A complete evaluation platform for the PCA9633 4-bit LED driver

• Easy to use GUI based software demonstrates the capabilities of the PCA9633

• On-board LEDs for visual experience

• Convenient test points for easy scope measurements and signal access

• USB interface to the host PC

• No external power supply required

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PCA9633 demonstration board OM6282

C demo-boards

C-bus/SMBus port. The

3. Getting started

3.1 Assumptions

Familiarity with the I2C-bus is helpful but not required.

3.2 Static handling requirements

CAUTION

3.3 Minimum system requirements

•

• One USB port (either 2.0 or 1.1 compatible)

• Windows 98SE, ME, 2000, XP, or Vista

• I2C 2005-1 demonstration board (OM6275)

This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken during transport and handling. You must use a ground strap or touch the PC case or other grounded source before unpacking or handling the hardware.

PC Pentium 60 processor (or equivalent), 8 MB RAM, 10 MB of hard drive space

3.4 Power requirements

The NXP demonstration board I2C 2005-1 and OM6282 hardware obtain power from the PC USB port. Care should be taken not to exceed the USB port current capabilities.

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4. Installation

4.1 I2C 2005-1 board and WIN-12CUSB Lite software

The OM6282 is a daughter card to the OM6275 I2C 2005-1 demo board. You may download the WIN-I2CUSB Lite Software, the OM6275 user manual UM10206, and find ordering information at the NXP web site

http://www.standardics.nxp.com/support/boards/i2c20051/

4.2 OM6282 connection to I2C 2005-1 board

The I2C 2005-1 demo board should be discon ne ct ed fro m yo ur PC before mo un tin g th e OM6281 board on to it. The OM6282 board has a 9 -pin female conne ctor that connect s to the JP1 male connector on the I2C 2005-1 board.

With both boards facing you, connect the OM6282 board to the I2C 2005-1 board before connecting the USB cable. Once the board is connected, connect the USB cable an d start the WIN-I2CUSB Lite software. You are now ready to evaluate the PCA9633.

UM10317

PCA9633 demonstration board OM6282

5. Hardware description

J2 OE select probe

J1 connector to

I2C 2005-1 board

Fig 1. OM6282 demo board

PCA9633

LED light diffuser

address and OE selector

J3 card extender connector

The OM6282 board has 3 jumper headers:

• J1 is for connection to JP1 on I2C 2005-1 demo board.

• J2 allows an external OE to be connected to the board.

• J3 is for pass-through signals from the I2C 2005-1 demo board.

• IC2 is an unpopulated area for signal access. All address, I

available.

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C, LED signals are

NXP Semiconductors

6. Schematic

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PCA9633 demonstration board OM6282

5 V unswitched 5 V switched

3.3 V unswitched

3.3 V switched SCL GND SDA INPUT OUTPUT

1J2OE

5 V unswitched 5 V switched

3.3 V unswitched

3.3 V switched SCL GND SDA INPUT OUTPUT

3.3 V unswitched

GND

LED0 LED1 LED2 LED3

SOCKET - not populated

A2 A3

1 2 3 4 5 6 7 8

3.3 V unswitched

PIN13

PIN12

PIN1

PIN2

PIN7

PIN8

PIN10

IC2

DIL16-1

PCA9633

SDA

SCL

16 15 14 13 12 11 10 9

3.3 V unswitched

LED0

LED1

LED2

LED3

GND

PIN9 PIN16

A6 A5 SDA SCL A4 OE GND

GND

C2 C1

PIN3

PIN4

PIN5

PIN6

PIN15

PIN14

PIN11

LED0

R11

LED1

R10

LD1

LED2

LED3

R12

LED1

A6 A5 A4 A3 A2 A1 A0

16151413121110

12345678

1234567

3.3 V unswitched

GND

002aae179

Fig 2. PCA9633 daughter card

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PCA9633 demonstration board OM6282

7. OM6282 demonstration board main components

Table 1. OM6282 demo board main components

Device Description Address Location

PCA9633PW

4-bit Fm+ I2C-bus LED driver 0xC4 for I2C 2005-1 interface IC1

8. PCA9633 evaluation steps

The PCA9633 functions are controlled by WIN-I2CUSB Lite GUI. Refer to the PCA9633 data sheet for additional information on the registers and functionality.

8.1 Color mixing and dimming LEDs

1. Connect the hardware as described in Section 4. The PCA9633 address is set to 0xC4.

2. Start the GUI software.

3. The main screen will appear.

4. From the ‘Device’ drop-down menus select ‘LED Blinkers and Dimmers’, and from the subsequent drop-down menu select ‘PCA9633 4-bit LED driver’ as in Figure 3

5. The device configuration screen will be displayed as in Figure 4

6. Un-check the ‘Sleep Enabled (oscillator off)’ box to enable the device, check the ‘Auto Write’ box (lower right), and click the ‘Write All’ button.

7. Go to the LED Driver Outputs pull-down tabs and for LED0 to LED3 select ‘LEDn controlled by PWMn and GRPPWM’.

8. With the cursor, move the PWMn bars to change the colors on the OM6282 board. PWM0 controls the red LED. PWM1 controls the green LED. PWM2 controls the blue LED. PWM3 controls the amber LED.

9. Once you set a color with the PWM values, move the GRPPWM cursor and observe the dimming effect (Figure 5

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Fig 3. Drop-down menu selections

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PCA9633 demonstration board OM6282

Fig 4. Device configura tion screen

Fig 5. Dimming effect

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NXP Semiconductors

8.2 Color mixing and blinking LEDS

To set-up a blinking demo, repeat step 1 through step 7 as in Section 8.1, then do the following:

1. In the Mode 2 selection window, ch eck the ‘Group Co ntrol’ box to cha nge the mode to

2. Select a color using the PWM cursors.

3. To set a blink cycle, use the GRPPWM cursor to select the duty cycle and use the

4. For example, set the GRPPWM to 0x05 (1.95 % duty cycle) and the GRPFREQ to

5. Change the GRPPWM to 0x80 (50 % duty cycle) and the LED will be on for

6. Change the color of the LEDs by selecting a different PWM value for each LED.

7. Set the GRPPWM to 0x52 (32 % duty cycle) and the GRPFREQ to 0x01

8. Change the PWMn values, GRPPWM and GRPFREQ values to create different blink

9. Change the LEDOUT register on one LED output to be controlled only by it s PWM, for

10. Change the blink rate and observe the results.

PCA9633 demonstration board OM6282

blinking.

GRPFREQ to select the blink frequency.

0x17 (1 second) for a short blink every second (see Figure 6

0.5 seconds, repeating every second.

(0.08 second) and observe the pattern.

patterns.

example, ‘LED1 controlled by PWM1’.

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Fig 6. Example of short blink every second

9. Support

For support, please send an E-mail to: i2c.support@nxp.com

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10. Abbreviations

Table 2. Abbreviations

Acronym Description

ESD ElectroStatic Discharge GUI Graphical User Interface

C-bus Inter-integrated Circuit bus

I IC Integrated Circuit LED Light Emitting Diode PC Personal Computer PWM Pulse Width Modulator RAM Random Access Memory RGB Red/Green/Blue RGBA Red/Green/Blue/Amber SMBus System Management Bus USB Universal Serial Bus

UM10317

PCA9633 demonstration board OM6282

11. References

[1] PCA9633, 4-bit Fm+ I2C-bus LED driver — Product data sheet;

NXP Semiconductors; www.nxp.com/pip/PCA9633

[2] UM10206, I2C Demonstration Board 2005-1 Quick Start Guide —

NXP Semiconductors; www.nxp.com/acrobat/usermanuals/UM10206

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12. Legal information

UM10317

PCA9633 demonstration board OM6282

12.1 Definitions

Draft — The document is a draft version only. The content is still under

internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information.

12.2 Disclaimers

General — Information in this document is believed to be accurate and

reliable. However, NXP Semiconduct ors does not give any repr esentatio ns or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information.

Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.

Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonabl y be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.

Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.

12.3 Trademarks

Notice: All referenced brands, prod uct names, service names and trad emarks are the property of their respective owners.

C-bus — logo is a trademark of NXP B.V.

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13. Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1 Assumptions. . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.2 Static handling requirements . . . . . . . . . . . . . . 3

3.3 Minimum system requirements. . . . . . . . . . . . . 3

3.4 Power requirements . . . . . . . . . . . . . . . . . . . . . 3

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4.1 I2C 2005-1 board and WIN-12CUSB Lite

software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4.2 OM6282 connection to I2C 2005-1 board . . . . 4

5 Hardware description . . . . . . . . . . . . . . . . . . . . 4

6 Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7 OM6282 demonstration board main

components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

8 PCA9633 evaluation steps . . . . . . . . . . . . . . . . 6

8.1 Color mixing and dimming LEDs . . . . . . . . . . . 6

8.2 Color mixing and blinking LEDS. . . . . . . . . . . . 8

9 Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

10 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . 9

11 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

12 Legal information. . . . . . . . . . . . . . . . . . . . . . . 10

12.1 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

12.2 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 10

12.3 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 10

13 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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PCA9633 demonstration board OM6282

Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’.

For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com

Date of release: 15 December 2008

Document identifier: UM10317_1

NXP Semiconductors UM10317 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Introduction

2. Features

3. Getting started

3.1 Assumptions

3.2 Static handling requirements

3.3 Minimum system requirements

3.4 Power requirements

4. Installation

4.1 I2C 2005-1 board and WIN-12CUSB Lite software

4.2 OM6282 connection to I2C 2005-1 board

5. Hardware description

6. Schematic

7. OM6282 demonstration board main components

8. PCA9633 evaluation steps

8.1 Color mixing and dimming LEDs

8.2 Color mixing and blinking LEDS

9. Support

10. Abbreviations

11. References

12. Legal information

12.1 Definitions

12.2 Disclaimers

12.3 Trademarks

13. Contents