Seco SBC-C31 User Manual
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Seco SBC-C31 User Manual

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SBC-C31
Single Board Computer
with Rockchip RK3399 SoC
on 3.5" form factor

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Summary of Contents for Seco SBC-C31

  • Page 1 SBC-C31 Single Board Computer with Rockchip RK3399 SoC on 3.5” form factor...
  • Page 2 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: Table Of Contents

    Connector ........................................... 29 3.3.6 HDMI Connector .......................................... 30 3.3.7 USB Connectors ......................................... 31 SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 4 SPI Connector ..........................................39 3.3.18 RECOVERY MODE connectors ..................................... 39 APPENDICES .....................................40 Thermal Design ........................................... 41 SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 5: Introduction

    Electrostatic discharges • RoHS compliance • Safety Policy • Terminology and definitions • Reference specifications SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 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-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 7: Information And Assistance

    A RMA Number will be sent within 1 working day (only for on-line RMA requests). SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 8: Safety

    Check carefully that all cables are correctly connected and that they are not damaged. 1.5 Electrostatic discharges The SBC-C31 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: Safety Policy

    The board shall be powered by a Power Supply Unit separately approved and classified ES1/PS2 according to the requirements of IEC EN 62368-1. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 10: Terminology And Definitions

    Open Vector Graphics, an Open Source API dedicated to hardware accelerated 2D vector graphics SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 11 User Identity Module, an extension of SIM modules. Universal Serial Bus uSDHC Ultra Secure Digital Host Controller V_REF Voltage reference Pin SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 12: Reference Specifications

    SDIO https://www.sdcard.org/developers/overview/sdio TMDS http://www.siliconimage.com/technologies/tmds USB 2.0 and USB OTG https://www.usb.org/sites/default/files/usb_20_20190524.zip USB 3.0 https://usb.org.10-1-108-210.causewaynow.com/sites/default/files/usb_32_20191024.zip SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 13: Overview

    • Introduction • Technical specifications • Electrical specifications • Mechanical specifications • Block diagram SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 14: Introduction

    485 or 4xGPIOs + 1x RS-232, plus given by default 3x GPIOs, 1x Open-Drain Output, 1x I2C and 1x PWM. The features on SBC-C31 are completed , as factory options, by 1x CAN or SPI flash on-board or SPI external interface, plus by 1x CAN or Ultra Low Power RTC on-board.

  • Page 15: Technical Specifications

    Optional on-board LTE Modem Linux Yocto Android (under development) ** Measured at any point of SECO standard heatsink for this product, during any and all times (including start-up). Actual temperature will widely depend on application, enclosure and/or environment. Upon customer to consider application-specific cooling solutions for the final system to keep the heatspreader temperature in the range indicated.

  • Page 16: Electrical Specifications

    Batteries supplied with SBC-C31 are compliant to requirements of European Directive 2006/66/EC regarding batteries and accumulators. When putting out of order SBC-C31, 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 17: Power Rails

    +3V3_OUT: 3.3V power rail specific for I/O connectors, derived from +3.3V_ALW power rail upon SW enabling. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 18: Power Consumption

    Expansion interfaces: 1x RS-485 + 1x RS-232 Other: SPI Flash on-board, Audio Codec, RTC battery SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 19 Stress Test 11.4W 0.6A 12.92W 0.68A 22.61W 1.19A 23.56W 1.24A 8.17W 0.43A 9.5W 0.5A SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 20: Mechanical Specifications

    The printed circuit of the board is made of twelve layers, some of them are ground planes, for disturbance rejection. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 21: Block Diagram

    RTC Battery CAN Connector SPI2 SPI Flash CAN Controller SPI Ext Connector Factory alternatives SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 22: Connectors

    • Introduction • Connectors overview • Connectors description SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 23: Introduction

    3.1 Introduction On SBC-C31 board, there are several connectors located on the lower 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 could be different from the following pictures.

  • Page 24: Connectors Overview

    Jumpers List Name Description Name Description CAN Bus#1 Termination Watchdog enable CAN Bus#2 Termination SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 25: Connectors Description

    GBEx_MDI3+/GBEx_MDI3-: Ethernet Controller #x Media Dependent Interface (MDI) I/O differential pair #3. It is the fourth differential pair in Gigabit Ethernet mode; it is not used in 10/100Mbps modes. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 26: On Board Optional Modem

    UIM_PWR: Power line for the microSIM module. Can be 1.8V or 3.3V, it is supported by the EG25-G module automatically. 3.3.3 On board WiFi + BT module The SBC-C31 board can be equipped with a Dual band (2.4GHz + 5.0 GHz) WLAN 802.11 a/b/g/n/ac + BT 5.0 combo embedded module, which is AzureWave Type, p/n AW-CM276NF. SBC-C31...

  • Page 27: Lvds Connector

    LVDS_1_TX1+/ LVDS_1_TX1-: LVDS Channel #1 differential data pair #1. I2C_SDA TOUCH_INT# LVDS_1_TX2+/ LVDS_1_TX2-: LVDS Channel #1 differential data pair #2. I2C_SDA I2C_SCL SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 28 For this purpose, some dedicated 0-Ohm resistors can be mounted (factory default: not available). Please contact your local Sales rep in case you need this special configuration. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 29: Edp Connector

    Pulse Width Modulated (PWM) regulations (eDP_LCD_PWR electrical level). eDP_ML3P eDP_ML3N eDP_LCD_PWR SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 30: 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-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

  • Page 31: Usb Connectors

    SBC-C31 VBUS_C0: Power bus, derived from +5V_ALW power rail, current limited to 1A @5V SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 32 EMI compliance. For ESD protection, on all data and voltage lines are placed clamping diodes for voltage transient suppression. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 33 MIPI_CSI_I2C4_SDA: I2C Bus data line. Bidirectional signal, electrical level +1.8V_RUN with a 2K2Ω pull-up resistor. It is managed by the processor’s I2C controller SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 34 Headsets, shown in the table on the left. SLEEVE Mic In SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 35 CAN_H_2 CAN_L_2 Signals Description: CAN_H_x: High-Level CAN bus line CAN_L_x: Low-Level CAN bus line SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 36 The possible alternative configuration for OUT5..OUT8 are: OUT6 • RS-232 ports OUT7 • RS-485 ports OUT8 • 4x GPIOs SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 37 RS485_1_D+/ RS485_1_D-: COM Port #3 RS-485 Mode, Differential Pair RS485_2_D+/ RS485_2_D-: COM Port #4 RS-485 Mode, Differential Pair SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 38 CN3 is a Molex 1.25mm pitch, 3-pin header, Type MOLEX p/n 53398-0371 or ONOFF equivalent. Mating connector: MOLEX 51021-0300 receptacle with MOLEX 50079-8000 female crimp terminals. SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 39 Signal This functionality is not supported at the moment and is under development. Adkey_IN SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 40 • Thermal Design SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
  • Page 41 When using SBC-C31 boards, it is necessary to consider carefully the heat generated by the module in the assembled final system, and the scenario of utilization. Until the board is used on a laboratory shelf, on free air, just for software development and system tuning, then a heatsink with integrated fan could be sufficient for board’s cooling.
  • Page 42 52100 Arezzo - ITALY Ph: +39 0575 26979 - Fax: +39 0575 350210 www.seco.com SBC-C31 SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.

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