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DB1
Single Board Computer
Document Reference: User Guide
Document Issue: 0.3
Blue Chip Technology Limited
Chowley Oak,
Tattenhall,
Chester.
Cheshire,
England
CH3 9EX
Tel: 44 (0)1829 772000
Web:
https://www.bluechiptechnology.com/

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Summary of Contents for BLUE CHIP DB1

  • Page 1 Single Board Computer Document Reference: User Guide Document Issue: 0.3 Blue Chip Technology Limited Chowley Oak, Tattenhall, Chester. Cheshire, England CH3 9EX Tel: 44 (0)1829 772000 Web: https://www.bluechiptechnology.com/...
  • Page 2: Table Of Contents

    Static Electricity ....................5 Features ........................5 Specification ......................5 PCB Layout ......................... 8 DB1 for 7” and 12” LCD ..................8 DB1 for 9.7” LCD....................9 Connectors ........................ 10 P1 – Capacitive Touch ..................10 P2 – GPS ......................11 P3 –...
  • Page 3 Requirements ..................... 34 16.2 Downloading and unpacking OS zip archives ............34 16.3 Windows Driver Installation .................. 34 16.4 Connecting DB1 and PC ..................34 16.5 OS Installation ....................35 Delete Me Later! ....................35 Appendix ....................... 36 18.1 Change Log ......................36...
  • Page 4: Copyright

    Blue Chip Technology Ltd. 2 Limitations of Liability In no event shall Blue Chip Technology be held liable for any loss, expenses or damages of any kind whatsoever, whether direct, indirect, incidental or consequential, arising from the design or use of this product or the support materials supplied with this product.
  • Page 5: General/National Safety Warnings

    LCD panel and other peripherals attached to the DB1. See section 15 for typical DB1 current consumption values. The DB1 has the capability to support a Lithium Battery via connector P18 to retain time and date when the unit is powered off.
  • Page 6 BCT DB1 User Guide v0_3.docx USB 2 host, 1 device. ▪ On-board temperature sensor. ▪ 4KB Non-volatile storage. ▪ LVDS display driver. 7” 9.7” & 12” LCD supported. ▪ Capacitive or resistive touch. ▪ µSD card interface. ▪ 12 GPIO.
  • Page 7 BCT DB1 User Guide v0_3.docx Figure 6-1 DB1 Overview...
  • Page 8: Pcb Layout

    BCT DB1 User Guide v0_3.docx 7 PCB Layout 7.1 DB1 for 7” and 12” LCD Figure 7-1 DB1 for 7” and 12” LCD top view Figure 7-2 DB1 for 7” and 12” LCD bottom view...
  • Page 9: Db1 For 9.7" Lcd

    BCT DB1 User Guide v0_3.docx 7.2 DB1 for 9.7” LCD Figure 7-3 DB1 for 9.7” LCD top view Figure 7-4 DB1 for 9.7” LCD bottom view Page 9...
  • Page 10: Connectors

    BCT DB1 User Guide v0_3.docx 8 Connectors Connector / Description P10 – Power (DC jack) P1 – Capacitive Touch P11 – Power (Screw Terminal) P2 – GPS P12 – Speaker P3 – WiFi / Bluetooth P13 – 9.7” LCD Connector P4 –...
  • Page 11: P2 - Gps

    BCT DB1 User Guide v0_3.docx 8.2 P2 – GPS Outer Centre Figure 8-2 P2 – GPS Signal Comments Outer Centre Table 8-3 P2 – GPS pinout 8.3 P3 – WiFi / Bluetooth Outer Centre Figure 8-3 P3 – WiFi / Bluetooth...
  • Page 12: P4 - Resistive Touch

    BCT DB1 User Guide v0_3.docx 8.4 P4 – Resistive Touch Figure 8-4 P4 – Resistive Touch Signal Comments Y+ position input X- position input Y- position input X+ position input Table 8-5 P2 -USB-A pinout 8.5 P5 – Ethernet Figure 8-5 P5 – Ethernet...
  • Page 13: P6 - Expansion Connector

    BCT DB1 User Guide v0_3.docx Signal External Comments Connections (RJ45) TX1P Bi-directional pair 1 + TX1N Bi-directional pair 1 - TX2P Bi-directional pair 2 + TX2N Bi-directional pair 2 - TX3P Bi-directional pair 3 + TX3N Bi-directional pair 3 -...
  • Page 14 BCT DB1 User Guide v0_3.docx Signal Comments Headphone R GPIO 12 Headphone L GPIO 11 GPIO 10 Microphone1 P GPIO 9 Microphone2 P GPIO 8 GPIO 7 SPKR P GPIO 6 SPKR N GPIO 5 GPIO 4 COM1 TX Debug Port RS232...
  • Page 15: P7 - Usb-B Connector

    BCT DB1 User Guide v0_3.docx Power Off CRX3 N RS422 Reset Sleep Request I2C SCL Boot Mode I2C SDA 3.3v output Power INPUT. External RTC battery Voltage range 3.0-3.6v Table 8-7 P6 – Expansion pinout 8.7 P7 – USB-B Connector Figure 8-7 P7 –...
  • Page 16: P8 - Usb-A Connector

    BCT DB1 User Guide v0_3.docx 8.8 P8 – USB-A Connector Figure 8-8 P8 – USB-A Connector Signal Comments VBUS +5 volts – Filtered & current limited USB Data Negative USB Data Positive Filtered Electrical ground Table 8-9 P8 – USB-A Connector pinout 8.9 P10 –...
  • Page 17: P11 - Power (Screw Terminal)

    BCT DB1 User Guide v0_3.docx Signal Comments Centre pin Outer Table 8-10 P10 – Power (DC jack) pinout 8.10 P11 – Power (Screw Terminal) Signal Comments Square pad (bottom side of PCA) Round pad (bottom side of PCA) Table 8-11 P11 – Power (Screw Terminal) pinout 8.11 P12 –...
  • Page 18: P14 - 7" / 12" Lcd Connector

    BCT DB1 User Guide v0_3.docx Signal Comments VPNL VPNL LVDS 0 N LVDS 0 P LVDS 1 N LVDS 1 P LVDS 2 N LVDS 2 P LVDS C N LVDS C P LEDA LEDA LEDK1 LEDK1 LEDK1 LEDK1 LEDK1...
  • Page 19 BCT DB1 User Guide v0_3.docx Figure 8-11 P14 – 7” / 12” LCD Connector Signal Comments ENLED Enable Display LCD BL LCD PWM 3.3v 3.3v LVDS0 N LVDS0 P LVDS1 N LVDS1 P LVDS2 N LVDS2 P LVDC N LVDC P...
  • Page 20: P16 - Camera Input

    BCT DB1 User Guide v0_3.docx 8.14 P16 – Camera Input Figure 8-12 P16 – Camera Input Page 20...
  • Page 21: P18- Rtc Battery

    BCT DB1 User Guide v0_3.docx Signal Comments VREG_L10_2P8 I2C_SDA AVCC_2P8 I2C_SCK RESET# DISABLE VCC_1P5 VREG_L6_1P8 CSI0_1_P CSI0_MCLK CSIO_1_N CSIO_C_P CSIO_C_N CSIO_0_P CSIO_0_N Table 8-15 P16 – Camera Input pinout 8.15 P18- RTC Battery Figure 8-13 P18- RTC Battery Page 21...
  • Page 22: Jumpers

    BCT DB1 User Guide v0_3.docx Signal Comments VBAT Table 8-16 P18- RTC Battery pinout 9 Jumpers 9.1 J1, J2 - COM Port #3 Function Jumper Comment COM Port #3 is RS422/RS485. COM Port #3 is RS232. Table 9-1 J1, J2 - COM Port #3 Function Jumpers...
  • Page 23: J3 - Boot Order Selection

    BCT DB1 User Guide v0_3.docx 9.2 J3 - Boot Order Selection Jumper Comment Boot order is EMMC, µSD card. Boot order is µSD card, EMMC. Table 9-2 J3 - Boot Order Selection Jumper 10 Expansion Connector PCAs 10.1 Screw Terminal PCA For users who prefer screw terminal connections a dual 25-way row PCA with 3.5mm pitch...
  • Page 24 GPIO signal – 3 volts level GPIO 12 GPIO signal – 3 volts level 0 volts Alternative power INPUT – in parallel with the main power in connector on DB1. 0 volts I2C SDA I2C Data at a 3 volts level I2C SCL...
  • Page 25: Picoblade™ Connector Pca

    BCT DB1 User Guide v0_3.docx CTX3_N COM Port 3 Transmit – Negative / COM 3 RS232 Receive – 3volts level for RS422/485, RS232 levels for RS232. See section 14 for further information. CTX3_P COM Port 3 Transmit – Positive / COM 3 RS232 Transmit –...
  • Page 26: Connector P1 - Utilities

    BCT DB1 User Guide v0_3.docx 10.2.1 Connector P1 – Utilities Signal Comments PWROFF# Apply logic low to power down the unit 0 volts RESET# Apply logic low to reset the unit 0 volts I2C SCL I2C Clock at a 3 volts level...
  • Page 27: Connector P3 - Audio

    BCT DB1 User Guide v0_3.docx 10.2.3 Connector P3 – Audio Signal Comments Line out right channel Audio line level signal Line out left channel Audio line level signal 0 volts Audio ground Line in left channel Audio line level signal...
  • Page 28: Connector - P5 - Gpio

    Table 10-6 Connector – P5 – GPIO 11 RTC Battery The DB1 provides a real-time clock (RTC) that can preserve the time when main power is off. This can be powered by an onboard rechargeable battery or by an external battery.
  • Page 29: Thermal Specifications

    BCT DB1 User Guide v0_3.docx 12 Thermal Specifications Configuration Min(°C) Max(°C) Headless 7” 9.7” 12” Table 12-1 Thermal Specifications Please note that the temperature is local to the PCB and is not the room or enclosure ambient which may be a lot lower.
  • Page 30: General Purpose I/O Operation

    BCT DB1 User Guide v0_3.docx 13.1 General Purpose I/O Operation The operation of the General-Purpose Input/Outputs (GPIOs) on the DB1 is slightly different to that used on most other BCT products. The Qualcomm APQ8016E GP pins operate at 1.8v logic levels. To maintain compatibility with previous BCT products, all GPIOs are level shifted to 3.3v before they reach the 50-way expansion connector.
  • Page 31: Rs232 / Rs485

    2 & 3. For RS485/RS422 operation, place J1 and all three jumpers in J2 to position 1 & 2. See section 9.1 for further information. The DB1 must only be operated when the J1 and J2 links are either linking pins 1 & 2 or 2 & 3 and never with a mixture.
  • Page 32 BCT DB1 User Guide v0_3.docx 14.3 RS422 RS422 uses two differential pairs for transmit and receive giving a total of 4 wires between the devices. Since the transmit and receive pairs are separate, full-duplex communication is possible. Figure 14-2 shows a typical RS422 wiring arrangement.
  • Page 33: Rs422/Rs485 Termination Resistors

    For RS422/RS485 applications which require long cable runs or high data rates it is generally necessary to include terminating resistors. The are placed between the differential pairs at the receiver end. The DB1 does not provide termination resistors, these must be added by the user as required.
  • Page 34: Os Installation

    BCT DB1 User Guide v0_3.docx 16 OS Installation The DB1 can boot an OS installed on the on-board EMMC or from a µSD card. This section describes only the method for installation to the EMMC. 16.1 Requirements • An Intel/AMD PC with at least Windows 7, 64 bit or at least Ubuntu Linux 18.04, 64 bit operating system installed.
  • Page 35: Os Installation

    The DB1 device and the file transfer should take place. On Linux you may need to turn the DB1 off, start the tool and then power the DB1 on in the USB mode. The file transfer takes about 20 minutes, and the progress information is printed on the console. After the installation is complete the DB1 is reset, and the OS is started.
  • Page 36: Appendix

    BCT DB1 User Guide v0_3.docx Class-D amp specification and speaker requirements 18 Appendix 18.1 Change Log Issue Date Author Details of Change 05/09/2023 First version Table 18-1 Change Log Page 36...

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