NXP Semiconductors OM13524, User Manual

Page 1: ...nd White LEDs 16 channel x 8 bit PWMs Abstract The OM13524 demo board is easy to test and design for the PCA9745B a 16 channel SPI 4 wire bus 57 mA constant current and outputs allow up to 20 V for LE...

Page 2: ...ion provided in this document is subject to legal disclaimers NXP Semiconductors N V 2016 All rights reserved User manual Rev 1 23 June 2016 2 of 28 Contact information For more information please vis...

Page 3: ...he capabilities of the PCA9745B On board four white and four RGB LEDs for visual experience Convenient test points for easy scope measurements and signal access USB interface to the host PC No externa...

Page 4: ...2000 and XP and is compatible with any PC hardware having a minimum of a Pentium processor and an USB port The software allows the user to select one of the SPI bus driver from a menu and also provide...

Page 5: ...our PC before connecting the OM13524 PCA9745B demo board on to it The OM13524 board has a 9 pin male connector CON1 that connects to the 14 pin male connector J1 on the Win I2CUSB board using six jump...

Page 6: ...oard OM13524 UM11009 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2016 All rights reserved User manual Rev 1 23 June 2016 6 of 28 Fig 2 PCA9745B dem...

Page 7: ...5B demonstration board OM13524 UM11009 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2016 All rights reserved User manual Rev 1 23 June 2016 7 of 28...

Page 8: ...as external reset signal to RESET pin when J6 is open TP4 can be connected as external output enable signal to OE pin for blinking dimming control when J11 is open All jumpers default setting and fun...

Page 9: ..._LED1 or RGB_LED1 J12 to control white LED J16 to control Red LED J19 to control Green LED J22 to control Blue LED Open connect current meter to measure one of the LEDs output current or open one of t...

Page 10: ...used to short the WHT_LED4 or RGB_LED4 J26 to control white LED J28 to control Red LED J32 to control Green LED J30 to control Blue LED Open normal operation for WHT_LED4 and RGB_LED4 Short to short o...

Page 11: ...stration board OM13524 UM11009 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2016 All rights reserved User manual Rev 1 23 June 2016 11 of 28 6 Schem...

Page 12: ...ation board main components Table 2 OM13524 demo board main components Device Description LED Location PCA9745B 16 channel SPI bus 57 mA 20V constant current LED driver U1 See Fig 5 PRTR5V0U2AX ESD pr...

Page 13: ...ardware is correctly connected to the USB port and the computer recognizes it the message Hardware Detected is displayed on the bottom of the window Switched 3 3 V and 5 0 V output power supplies are...

Page 14: ...DOUT3 55h turn on LEDs 08 55 2000 82 80 Comments write IREFALL 80h 0 0A 55 0 82 00 Comments write IREFALL 00h 0 02 80 1500 82 40 Comments write IREFALL 80h 0 02 00 0 82 00 Comments write IREFALL 00h 0...

Page 15: ...0 0E 02 2000 0E 03 Comments set GRPFREQ 03 0 0C C0 0 82 00 Comments write IREFALL 00h 0 0E 03 Sequence 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 3 After open the P...

Page 16: ...OM13524 UM11009 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2016 All rights reserved User manual Rev 1 23 June 2016 16 of 28 Fig 7 Message data in...

Page 17: ...tration board hardware is connected and recognized by the computer start the Fm development board software As shown in Fig 8 when the demonstration board hardware is correctly connected to the USB por...

Page 18: ...5 0 52 47 Comments set STEP_TIME_GRP0 50 C3 0 54 D2 Comments set HOLD_CNTL_GRP0 52 47 0 56 80 Comments set IREF_GRP0 54 D2 0 58 C3 Comments set RAMP_RATE_GRP1 56 80 0 5A 47 Comments set STEP_TIME_GRP1...

Page 19: ...number Msg The action will be performed one time 5 User can program the MOSI Master Out Slave In Data to PCA9745B the first 7 bit is to access the address of register and 8th bit to indicate Read 1 o...

Page 20: ...1 Comments set LEDOUT3 55h 01h 0 08 55 08 01 800 82 10 82 40 Comments write IREFALL 10h 40h 0 0A 55 0A 01 800 04 01 04 40 Comments set LEDs on 0 04 01 04 40 800 06 01 06 40 Comments set LEDs ON 0 04 0...

Page 21: ...0 54 D0 82 00 Comments write IREFALL 00h set HOLD_CNTL_GRP0 D0h 0 52 47 02 80 0 56 F0 04 05 Comments set LEDOUT0 05h turn on W_R_G_B LEDs set IREF_GRP0 F0h 0 54 D0 02 00 0 70 11 06 10 Comments set LE...

Page 22: ...GRAD_MODE_SEL1 FFh 0 70 FF 02 00 0 04 50 06 40 Comments set LEDOUT1 40h LEDOUT0 50h 0 72 FF 04 10 0 06 50 08 00 Comments set LEDOUT2 00h LEDOUT1 50h 0 04 50 06 40 0 08 50 0A 05 Comments set LEDOUT3 05...

Page 23: ...00 00 0E 01 Sequence 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 3 1 32 33 34 35 36 37 38 3 The Fm development board as SPI master drives two PCA9745B de...

Page 24: ...cription ESD Electro Static Discharge GUI Graphical User Interface I2 C bus Inter integrated Circuit bus IC Integrated Circuit LED Light Emitting Diode MISO Master In Slave Out MOSI Master Out Slave I...

Page 25: ...s and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product design It is customer s sole responsibility to det...

Page 26: ...745B demo board OM13524 connecting to the WIN I2CUSB board 6 Fig 3 PCA9745B demo board OM13524 7 Fig 4 PCA9745B demo board schematic 11 Fig 5 PCA9745B SPI Daisy Chain LED driver block diagram 12 Fig 6...

Page 27: ...l information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2016 All rights reserved User manual Rev 1 23 June 2016 27 of 28 15 List of tables Table 1 Jumper setting...

Page 28: ...Installation 4 4 1 Fm development board and WIN SPIUSB software 4 4 2 OM13524 connection to Fm I2C bus development board 4 4 3 OM13524 connection to WIN I2CUSB hardware adapter board 5 5 Hardware des...

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