Nxp Semiconductors UM10317 User Manual

UM10317_1

© NXP B.V. 2008. All rights reserved.

 

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

1. Connect the hardware as described in 

. 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 

.

5. The device configuration screen will be displayed as in 

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 (

).

PCA9633PW

4-bit Fm+ I

2

C-bus LED driver

0xC4 for I2C 2005-1 interface

IC1