Seco SBC-C20 User Manual
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Seco SBC-C20 User Manual

With nxp i.mx 8m applications processors
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SBC-C20
Single Board Computer
with NXP i.MX 8M Applications Processors

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Summary of Contents for Seco SBC-C20

  • Page 1 SBC-C20 Single Board Computer with NXP i.MX 8M Applications Processors...

  • Page 2: Revision History

    SECO S.p.A. reserves the right to change precise specifications without prior notice to supply the best product possible. For further information on this module or other SECO products, but also to get the required assistance for any and possible issues, please contact us using the dedicated web form available at http://www.seco.com (registration required).
  • Page 3 LVDS + backlight connector ......................................... 24 HDMI connector........................................... 25 eDP Connector ............................................ 26 USB ports............................................27 SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 4 LCD / Backlight Power Selection ......................................37 Power On/Off connector ........................................38 APPENDICES ....................................39 Thermal Design ............................................40 SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 5 Safety • Electrostatic discharges • RoHS compliance • Terminology and definitions • Reference specifications SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 6: Warranty

    All changes or modifications to the equipment not explicitly approved by SECO S.p.A. could impair the equipment s functionalities and could void the warranty SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 7: Information And Assistance

    An RMA Number will be sent within 1 working day (only for on-line RMA requests). SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 8: Electrostatic Discharges

    Check carefully that all cables are correctly connected and that they are not damaged. 1.5 Electrostatic discharges The SBC-C20 board, like any other electronic product, is an electrostatic sensitive device: high voltages caused by static electricity could damage some or all the devices and/or components on-board.

  • Page 9: Terminology And Definitions

    Abbreviation of Physical, it is the device implementing the Physical Layer of ISO/OSI-7 model for communication systems Power Supply Unit Pulse Width Modulation Power SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 10 Transistor-transistor Logic Universal Serial Bus uSDHC Ultra Secure Digital Host Controller V_REF Voltage reference Pin SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 11: Reference Specifications

    SM Bus http://www.smbus.org/specs USB 2.0 and USB OTG https://www.usb.org/sites/default/files/usb_20_20190524.zip https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i.mx-applications-processors/i.mx-8- NXP i.MX 8M processor processors/i.mx-8m-family-armcortex-a53-cortex-m4-audio-voice-video:i.MX8M SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 12 • Introduction • Technical specifications • Electrical specifications • Mechanical specifications • Block diagram SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 13 2.1 Introduction SBC-C20 is a Single Board Computer, measuring just 101.6 x 147 mm (4” x 5,78”) based on embedded NXP i.MX 8M Family, featuring multicore processing (Dual ® ® or Quad ARM Cortex -A53 cores + general purpose Cortex -M4 processor).

  • Page 14: Technical Specifications

    Please also check paragraph 4.1 SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 15: Electrical Specifications

    Batteries supplied with SBC-C20 are compliant to requirements of European Directive 2006/66/EC regarding batteries and accumulators. When putting out of order SBC-C20, remove the batteries from the board in order to collect and dispose them according to the requirement of the same European Directive above mentioned.
  • Page 16 VDD_3P3V: +3.3V switched voltage directly derived from +3P3V_ALW VDD_5V: +5V switched voltage directly derived from +5V_ALW SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 17: Mechanical Specifications

    The printed circuit of the board is made of ten layers, some of them are ground planes, for disturbance rejection. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B./ A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 18: Block Diagram

    2.5 Block diagram Power IN Backlight DDR3L soldered- DDR3L soldered- Connector LED Driver connector down memory down memory +12V DSI-to-LVDS LVDS connector eMMC bridge PMIC Power section CAN Controller + Power ON QSPI Flash Transceiver Connector + Button QSPI External SPI RGMII GPIO Connector LVDS_PWM_0...
  • Page 19 • Introduction • Connectors overview • Connectors description SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 20: Top Side

    3.1 Introduction On SBC-C20 board, there are several connectors located on the upper plane. Standard connectors are placed on the same side of PCB, so that it is possible to place them on a panel of an eventual enclosure. Please be aware that, depending on the configuration purchased, the appearance of the board can be significantly different from the following pictures.

  • Page 21: Connectors Overview

    CN45 Backlight Power selector SIM Detect CN46 LCD Power selector CAN Bus Termination Boot Mode SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 22: Connectors Description

    ETH _MDI2+/ ETH _MDI2-: Ethernet Controller Media Dependent Interface (MDI) I/O differential pair #2. It is the third differential pair in Gigabit Ethernet mode; it is not used in 10/100Mbps modes. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 23 LED Driver connector SBC-C20 by iMX8M allow the direct control of LCD LED units. This functionality is allowed by WLED Controller p/n MP3385GR-Z driven by I2C interface of iMX8. This functionality is ensured by connector CN15, which is a 6-pin FFC/FPC connector, type HR P/N A1253WR-SF-06P, whose pinout is available in the table.

  • Page 24: Lvds + Backlight Connector

    (max 1.85A per rail). LVDS1_CLK+ LVDS1_CLK+ VCC_BKL_SW: SW enabled Backlight power rail. Please check par. 3.3.23 SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 25: Hdmi Connector

    Always use HDMI-certified cables for the connection between the board and the HDMI display; a category 2 (High-Speed) cable is recommended for higher resolutions, category 1 cables can be used for 720p resolution. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 26: Edp Connector

    DISPLAY_BKL_CTRL: this signal can be used to adjust the backlight brightness in displays supporting Pulse Width Modulated pull-up resistor). eDP_ML3P DISPLAY_BKL_ON: eDP_ML3N resistor VCC_LCD_SW SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 27: Usb Ports

    Signal description of this port: USB_D1+/USB_D1-: USB Device Port #1 differential pair. USB_VBUS_RECOVERY: Recovery USB voltage rail input. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 28 USB_IH_RST: This signal can be used to drive the reset of an eventual external device connected to CN37. VDD_3P3V electrical level output. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 29 USB_P2+/USB_P2-: USB 2.0 Port #2 differential pair. It is managed by the optional SMSC PCIe_CLQREQ# DIF1#_REF_CLK PCIe_WAKE# DIF1_REF_CLK SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 30: Microsim Card Slot

    The signals are already described in par 3.3.10. UIM_CLK UIM_DATA SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 31 I2C controller #2. MIPI_CSI0_RST_B: External camera module reset signal output, it is an active low signal. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 32 SDIO_DAT[0÷3]: SD Card data bus. SDIO_DAT0 signal is used for all communication modes. SDIO_DAT[1÷3] signals are required for 4-bit communication mode. SDIO_DAT0 SDIO_DAT1 SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 33: Audio Connectors

    LINE_OUT_R_FILT: Right line output, ac coupled. HP_OUT_L_FILT: Headphone Left output, ac coupled HP_OUT_L_FILT HP_OUT_R_FILT: Headphone Right output, ac coupled HP_OUT_R_FILT SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 34 MIC_CLK: digital microphone clock output, electrical level +3P3V_AUDIO with 10K pull-up resistor. MIC_DIR: direct connection to GND through a 10K pull-down resistor. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 35 EXT_SPI_MOSI: SPI Master Output Slave Input, ouput signal, electrical level VDD_3P3V. EXT_SPI_SCLK: SPI Serial Clock, electrical level VDD_3P3V SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 36 UART_RXD: UART #1 Receive data signal, electrical level VDD_3P3V. UART_Tx UART_TXD: UART #1 Transmit data signal, electrical level VDD_3P3V. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 37 A standard 3-way jumper, P2.54mm is used. LCD Power (VCC_LCD_SW) Selector CN46 Position Voltage Value VDD_3P3V +5V_ALW SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 38 Please be aware that the power switch input signal is also managed directly on the board by the pushbutton SW1, so it is not mandatory to connect them externally using CN47. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 39 Thermal Design • SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

  • Page 40: Thermal Design

    Therefore, it is always necessary that the customer studies and develops a specifically tailored cooling solution for the final system by evaluating processor’s workload, application environment, system enclosure, air flow and so on. SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
  • Page 41 SECO S.p.A. - Via A. Grandi, 20 52100 Arezzo - ITALY Ph: +39 0575 26979 - Fax: +39 0575 350210 www.seco.com SBC-C20 SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.

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