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Hardware User’s Manual

EV-K0-HCD Evaluation Kit

©

May 2008. NEC Electronics America, Inc.

Printed in USA. All rights reserved.

Document no. 51069

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Содержание EV-K0-HCD

Страница 1: ...Hardware User s Manual EV K0 HCD Evaluation Kit May 2008 NEC Electronics America Inc Printed in USA All rights reserved Document no 51069 ...

Страница 2: ...utions LED Board 5 2 5 LED Light Engine Connectors 5 2 6 RS 485 DMX 512 Interface 6 2 7 RS 232 Interface 7 2 8 Expansion IO Connector 7 2 9 USB Programming and Debugging Interface 7 2 10 Temperature Sensor 7 2 11 Ambient Light Sensor 8 2 12 DIP Switch 8 2 13 Reset Switch 8 3 Software 9 Appendix A Schematics 10 Appendix B Bill of Materials 12 Appendix C Board Assembly 14 Appendix D Board Layout 15 ...

Страница 3: ...s such as temperature light and color Various serial communication protocols are supported by this board including I2 C SPI RS 232 and RS 485 DMX 512 Users can program change and debug code easily and free of charge using the on board USB programming and debugging interface available June 2008 1 1 Contents EV K0 HCD board 12 VDC power supply USB cable DB9 cable One set of plastic stands and screws...

Страница 4: ...EV K0 HCD Evaluation Kit User s Manual Expansion IO connector On board temperature sensor On board ambient light sensor DIP switch for board configurations Reset switch for uPD78F8024 device reset 2 ...

Страница 5: ...h four layers The top layer contains most of the components the first middle layer serves as the power plane the second middle layer adds additional space for traces and the bottom layer serves as the ground plane and assembly for the temperature sensor and high power LEDs The heat generated by the LEDs is dissipated through the pads and vias surrounding the LEDs and LED temperature is sensed by t...

Страница 6: ...ED current When driving the LEDs at 350 mA the current sensor s resistor value should be set to 0 33 ohm Ω The number of LEDs that can be used in series per channel is determined by the supply voltage and the LED forward voltage using this formula NMAX VIN VF Formula 2 Where VIN supply voltage VF LED forward voltage current and NMAX maximum number of LEDs in series per channel Generally the sum of...

Страница 7: ... four Tyco receptacle connectors J1 J2 J3 and J4 before installing the LED boards You can then cascade multiple LED boards in one channel as long as the number of LEDs meets the requirement specified by Formula 2 Figure 2 Driving Future Lighting Solutions LED Boards 2 5 LED Light Engine Connector The EV K0 HCD board has four LED light engine connectors refer to J5 J6 J7 and J8 in the schematics to...

Страница 8: ...ot that each analog input is biased with a 10kohm resistor refer to R11 R12 R13 and R14 Figure 3 Driving the Dialight Light Engines 2 6 RS 485 DMX 512 Interface The EV K0 HCD board supports DMX 512 protocol over RS 485 using the MCU s UART0 port The RS 485 DMX 512 connector is a 3 pin terminal block connector that accepts up to 24 American Wire Gauge AWG wires Table 2 485 DMX 512 Connectors RS Pin...

Страница 9: ... SO CSI data output signal 6 IO P0 0 Timer TM00 capture input 7 SCL I2C clock signal 8 SDA I2C data signal 9 GND Ground 10 VDD Analog voltage reference The expansion IO connector pin outs are compatible with the NEC Electronics ZigBee sticks interface users can add ZigBee 802 15 4 wireless capability to LED lighting applications 2 9 USB Programming and Debugging Interface The EV K0 HCD evaluation ...

Страница 10: ... uses a 6 position DIP switch SW1 for configuration purposes The following table shows the various configuration options Table 5 rd Configuration Options Boa Setting Switch No OFF ON SW1 1 USB programming mode Normal operation SW1 2 Don t Care Self flash programming mode SW1 3 User defined User defined SW1 4 RS 485 enabled RS 232 disabled RS 232 enabled RS 485 disabled SW1 5 Temperature sensor dis...

Страница 11: ...demonstration code that cyclically dims the four on board high power LEDs You can also use the Applilet EZ software tool generate demonstration programs with different dimming control patterns Refer to the Applilet EZ Software User s Manual and EV K0 HCD Hands on Tutorial for more information 9 ...

Страница 12: ...EV K0 HCD Evaluation Kit User s Manual Appendix A Schematics 10 ...

Страница 13: ...EV K0 HCD Evaluation Kit User s Manual 11 ...

Страница 14: ... Lumileds LXML PB01 0023 1 LUXEON Rebel Blue HP LED4 High power LED Limileds LXML PWC1 0070 1 LUXEON Rebel White L1 L2 L3 L4 Inductor TDK SLF6028T 470MR59 PF 4 47 µH 20 590 mA 210mΩ 6028 SMD J1 J2 J3 J4 LED board connector Tyco 5535676 5 4 6 position receptacle 0 1 pitch dual dip J5 J6 J7 J8 Light engine connector Phoenix Contact 1727036 4 4 POS 3 8 1 MM PCB GRN J9 Power Jack CUI PJ 102A 1 2 1 mm ...

Страница 15: ...7 µF 10V 0805 C26 Capacitor TDK C1608X7R1E473K 1 0 047 µF 0603 C27 C28 C29 C30 Capacitor Kemet C0603C334K8PACTU 4 0 33 µF 0603 R5 R6 R7 R8 Resistor Bourns CR0603 J 000ELF 4 0Ω 0603 R9 Resistor Vishay CRCW060311K0FKEA 1 11 kΩ 0603 R10 R11 R12 R13 R14 R22 R23 R27 Resistor Vishay CRCW060310K0FKEA 8 10 kΩ 1 0603 R15 R26 R28 Resistor Vishay CRCW06031K00FKEB 3 1 kΩ 1 0603 R16 R17 R24 R25 R30 Resistor Vi...

Страница 16: ...EV K0 HCD Evaluation Kit User s Manual Appendix C Board Assembly Figure 4 Top Assembly Figure 5 Bottom Assembly 14 ...

Страница 17: ...EV K0 HCD Evaluation Kit User s Manual Appendix D Board Layout Figure 6 Top Layer Figure 7 Layer 1 15 ...

Страница 18: ...EV K0 HCD Evaluation Kit User s Manual Figure 8 Layer 2 Figure 9 Bottom Layer 16 ...

Страница 19: ...ucts customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely To minimize risks of damage to property or injury including death to persons arising from defects in NEC Electronics products customers must incorporate sufficient safety measures in their design such as redundancy fire containment and anti failure features NEC Electronics products are classi...

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