Changes between Version 29 and Version 30 of gettingstarted


Ignore:
Timestamp:
07/02/2026 04:58:47 PM (23 hours ago)
Author:
Ryan Erb
Comment:

add notes for ground

Legend:

Unmodified
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  • gettingstarted

    v29 v30  
    3131* The SBC should be placed on an ESD protected surface or mat and the operator should wear ESD heel or wrist straps when directly working with the board.
    3232* When connecting any cables or the power supply, make sure to touch the ESD surface before making contact with the board.
    33 * Do not hot plug any connectors or the power supply. All connections should be made with power off.
    34 * When using the JTAG adapter, make sure the development computer shares the same AC ground as the power supply being used to power the SBC to prevent ground loops.
     33* Do not hot plug any connectors or the power supply. All connections should be made with power off. Plug the barrel jack into the SBC and into a power strip. Use the switch on the power strip to power everything on as the last step.
     34* When using the JTAG adapter, make sure the development computer shares the same AC ground as the power supply being used to power the SBC to prevent ground loops. All devices need to use a 3-pin power plug with ground pin.
    3535* If powering from an active PoE switch, these switches use a low side FET to turn on power which means that the positive power (+) is always on and ground is switched in to complete the circuit. With this topology, if the JTAG adapter and the PoE switch are on the same ground then the board can power through the JTAG ground which can cause damage to both the board and JTAG. As a precaution, we recommend not using the JTAG with an active PoE switch.
    3636
    … …  
    4343== Power ==
    4444 * Most Gateworks' boards support voltages between 10VDC - 48VDC. Please consult the operating manual.
    45  * If a development kit was purchased, a 12V or 24V DC Wall supply is included that will connect to the power connector barrel jack on the GateworksSBC. *** Note on the GW5910, please only use the power supply with the PoE Injector ***
     45 * If a development kit was purchased, a 12V or 24V DC Wall supply is included that will connect to the power connector barrel jack on the GateworksSBC.
    4646 * Some boards require a 2 pin specialty connector with an adapter. Silkscreen labels are often labeled VIN for voltage input.
    4747 * POE is possible on certain models.  802.3af is available on certain models.  Passive POE between 10-48VDC is often supported.  Please consult the user manual. [wiki:poe POE Information]
    … …  
    5050
    5151Creating a ground loop can damage your hardware.  Always prevent the JTAG from becoming the shortest path to ground during development. 
     52
     53Please only use AC power plugs that have 3 pins, with the third pin being the ground pin.
    5254
    5355Gateworks recommends using a surge protected power strip. The laptop or desktop computer and Gateworks SBC power supply should all be plugged into the same power strip.