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©2019 NEC Display Solutions, Ltd. Page 71 of 74
Does the NEC Compute Module Interface board provide SD card support to use instead of the
onboard eMMC memory?
No.
Can the video output of the Compute Module be daisy-chained to another display via the Display
Port Output connection?
No.
Can the microSD slot be used to expand the onboard memory of the Compute Module?
No. The microSD slot, as well as the USB MP input, are dedicated to the internal Media Player on the
display and cannot be used by the Compute Module. The USB CM1 and USB CM2 inputs can be used to
connect additional USB based storage dedicated for the Compute Module.
Is it possible to run Android OS on the Compute Module?
There are currently some experimental builds of Android for the Raspberry Pi; however, these are
probably not stable enough to be used for professional and commercial applications, and may not even
work at all on the Compute Module version of the Raspberry Pi.
NEC currently recommends using the OPS Android DRD Digital Signage Player instead.
Does the NEC Compute Module provide support for Wi-Fi or Bluetooth?
No. However, a universal USB dongle such as the one on the Raspberry Pi site can be connected to the
USB port on the display.
Is it possible to boot directly to an external USB drive instead of the onboard eMMC memory?
No.
Warning: Do not attempt to set the USB boot mode flag in the Compute Module’s OTP by using
program_usb_boot_mode=1. Setting this will render the Compute Module permanently unable to
enter USB Boot Mode while hosted within the display. Flashing of the device via USB will no longer be
possible.
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