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. UM10317 NXP Semiconductors 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: [email protected] UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 2 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 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 I2C demo-boards to create an evaluation system. The IC communicates to the host via the industry standard I2C-bus/SMBus port. The 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 3. Getting started 3.1 Assumptions Familiarity with the I2C-bus is helpful but not required. 3.2 Static handling requirements CAUTION 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. 3.3 Minimum system requirements • • • • PC Pentium 60 processor (or equivalent), 8 MB RAM, 10 MB of hard drive space One USB port (either 2.0 or 1.1 compatible) Windows 98SE, ME, 2000, XP, or Vista I2C 2005-1 demonstration board (OM6275) 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. UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 3 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 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 disconnected from your PC before mounting the OM6281 board on to it. The OM6282 board has a 9-pin female connector that connects 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 and start the WIN-I2CUSB Lite software. You are now ready to evaluate the PCA9633. 5. Hardware description LED light diffuser PCA9633 J2 OE select probe J3 card extender connector J1 connector to I2C 2005-1 board address and OE selector Fig 1. OM6282 demo board 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, I2C, LED signals are available. UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 4 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 6. Schematic 3.3 V unswitched C1 GND A3 PIN7 PIN8 PIN10 LED2 A1 LED3 A2 A6 A3 A5 OE J1 R9 R12 LED2 PIN6 PIN15 PIN14 PIN11 LED3 A6 A4 A6 A5 A4 A3 A2 A1 A0 OE IC2 16 15 14 13 12 11 10 9 DIL16-1 SOCKET - not populated VCC 16 15 14 13 12 11 10 9 A1 LED0 LED1 LED2 LED3 A2 A3 1 2 3 4 5 6 7 8 3.3 V unswitched A5 GND A0 Fig 2. A4 LED1 PIN5 A6 A5 SDA SCL A4 OE GND ON S1 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 5 V unswitched 5 V switched 3.3 V unswitched 3.3 V switched SCL GND SDA INPUT OUTPUT GND LED0 PIN9 OE A0 PIN4 R8 A2 PIN2 LED1 R5 A1 PIN1 SCL PIN3 R6 R7 A0 LED0 R2 PIN12 PCA9633 SDA R3 R4 PIN13 J2 1 R11 VCC 5 V unswitched 5 V switched 3.3 V unswitched 3.3 V switched SCL GND SDA INPUT OUTPUT R1 J3 GND PIN16 3.3 V unswitched C3 R10 LD1 C2 LED1 3.3 V unswitched GND GND 002aae179 PCA9633 daughter card UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 5 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 7. OM6282 demonstration board main components Table 1. OM6282 demo board main components Device PCA9633PW Description 4-bit Fm+ I2C-bus LED driver Address Location 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). UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 6 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 Fig 3. Drop-down menu selections Fig 4. Device configuration screen Fig 5. Dimming effect UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 7 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 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, check the ‘Group Control’ box to change the mode to blinking. 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 GRPFREQ to select the blink frequency. 4. For example, set the GRPPWM to 0x05 (1.95 % duty cycle) and the GRPFREQ to 0x17 (1 second) for a short blink every second (see Figure 6). 5. Change the GRPPWM to 0x80 (50 % duty cycle) and the LED will be on for 0.5 seconds, repeating every second. 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 (0.08 second) and observe the pattern. 8. Change the PWMn values, GRPPWM and GRPFREQ values to create different blink patterns. 9. Change the LEDOUT register on one LED output to be controlled only by its PWM, for example, ‘LED1 controlled by PWM1’. 10. Change the blink rate and observe the results. Fig 6. Example of short blink every second 9. Support For support, please send an E-mail to: [email protected] UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 8 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 10. Abbreviations Table 2. Abbreviations Acronym Description ESD ElectroStatic Discharge GUI Graphical User Interface I2C-bus Inter-integrated Circuit bus 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 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 UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 9 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 12. Legal information 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. 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 reasonably 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. 12.2 Disclaimers General — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations 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. 12.3 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus — logo is a trademark of NXP B.V. UM10317_1 User manual © NXP B.V. 2008. All rights reserved. Rev. 01 — 15 December 2008 10 of 11 UM10317 NXP Semiconductors PCA9633 demonstration board OM6282 13. Contents 1 2 3 3.1 3.2 3.3 3.4 4 4.1 4.2 5 6 7 8 8.1 8.2 9 10 11 12 12.1 12.2 12.3 13 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Static handling requirements . . . . . . . . . . . . . . 3 Minimum system requirements. . . . . . . . . . . . . 3 Power requirements . . . . . . . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 I2C 2005-1 board and WIN-12CUSB Lite software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 OM6282 connection to I2C 2005-1 board . . . . 4 Hardware description . . . . . . . . . . . . . . . . . . . . 4 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 OM6282 demonstration board main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 PCA9633 evaluation steps . . . . . . . . . . . . . . . . 6 Color mixing and dimming LEDs . . . . . . . . . . . 6 Color mixing and blinking LEDS . . . . . . . . . . . . 8 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Legal information. . . . . . . . . . . . . . . . . . . . . . . 10 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2008. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 15 December 2008 Document identifier: UM10317_1