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 –...
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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...
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.
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.
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...
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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...
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 –...
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...
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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...
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...
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...
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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...
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 –...
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...
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...
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.
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.
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.
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.
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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.
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.
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.
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.
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