Summary of Contents for NXP Semiconductors PCA9955
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2005-1 or Fm+ I C-bus development board. This daughter board makes it easy to test and design with the PCA9955, a 16-channel Fast-mode Plus (Fm+) 57 mA constant current and outputs allow up to 40 V for LED supply. These boards, along with the Win-I2CUSB Lite GUI (PC based),...
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UM10572 NXP Semiconductors PCA9955 demonstration board OM13330 Revision history Date Description 20120607 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 UM10572 All information provided in this document is subject to legal disclaimers.
PCA9955 demonstration board OM13330 1. Introduction The PCA9955 evaluation board features LEDs for color mixing, blinking and dimming demonstrations. A graphical interface allows the easy exploration of the different functions of the driver. The board can be connected in series with other I C-bus demo boards to create an evaluation system.
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 PCA9955. Fig 1. PCA9955 demo board (OM13330) mounting to the I2C demo board 2005-1 (OM6275) UM10572 All information provided in this document is subject to legal disclaimers.
Connect the OM13330 board to the Win-I2CUSB 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 PCA9955. Fig 2. PCA9955 demo board (OM13330) connecting to the Win-I2CUSB board UM10572 All information provided in this document is subject to legal disclaimers.
J3 and J5 (5-pin) are for connection to PCA9665/PCU9669 mini boards and cascade the second PCA9955 demo board. • J1 selects V power for PCA9955, connected 1-2 for V = 3.3 V and connected 2-3 for V = 5 V.
3.3 V or 5 V indicator 8. PCA9955 evaluation steps The PCA9955 functions are controlled by WIN-I2CUSB Lite GUI. Refer to the PCA9955 data sheet for additional information on the registers and functionality. Connect the hardware as described in Section 4.
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UM10572 NXP Semiconductors PCA9955 demonstration board OM13330 – ‘Other’ GRPPWM is group PWM for global brightness control, GRPFREQ is group frequency for global blinking control when group control = blinking in Mode 2 register, PWMALL is brightness control for all LED outputs, OFFSET is control LED...
UM10572 NXP Semiconductors PCA9955 demonstration board OM13330 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 (= 0x25) selection window (middle left), check the ‘Group control = dimming’...
In no event shall NXP Semiconductors, its affiliates or their suppliers be liable Notwithstanding any damages that customer might incur for any reason to customer for any special, indirect, consequential, punitive or incidental whatsoever, NXP Semiconductors’...
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