Lanner LEC-7220-N4 Atom N2800 Fanless Appliance

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Note: Requires AstLinux 1.x

Board Specifications: LEC-7220-N4

AstLinux Board Type:

“geni586-serial” (19200 baud serial console)

Complete System Recommended Options:

Memory: 204-pin DDR3 1333 SO-DIMM 2GB
Flash Storage: Emphase Industrial Compact Flash Card 2 GB or 2.5“ SATA SSD
Included:
- Fanless Case
- AC Power Adapter (brick)
- SATA data/power cable for 2.5” SSD

Total System Power: 14 Watts when idle.

Configuration:

/mnt/kd/rc.conf.d/user.conf

SENSEMODS="f71882fg"

ALERT_SOUNDS="startup shutdown"  # Optional Sounds
ALERT_SOUNDS_OCTAVE="1"

/mnt/kd/sensors.conf

# libsensors configuration file
# -----------------------------
# Lanner LEC-7220-N4

chip "f81865f-*"

ignore fan1
ignore fan2

ignore in2

label in0 "+3.3V"
label in1 "VCORE"
label in3 "5V"
label in4 "12V"
label in5 "3VSB"
label in6 "Vbat"

label temp1 "SYS Temp"
label temp2 "CPU Temp"

compute in0 @*2, @/2
compute in3 @*5.255319148, @/5.255319148
compute in4 @*11, @/11
compute in5 @*2, @/2
compute in6 @*2, @/2

When a Compact Flash card is used, and it supports DMA, much higher disk performance can be obtained by enabling LIBATA DMA for Compact Flash. Enable from the CLI by issuing the following command:

set-kcmd libata.dma=5

BIOS Setup via Serial Port:

While it is possibly to use a VGA cable to connect to the board's internal VGA header (cable not provided) to view the BIOS, a better solution is to use “Remote Access” to the BIOS via the serial port.

First, configure your serial terminal program to support ANSI color and 115200 baud. If you are using minicom be sure to add the ' -c on ' option to the minicom command line, otherwise the ANSI colors will not be distinguishable in the BIOS Setup screen.

Second, on startup as soon as you hear the beep, type <TAB> to enter the BIOS Setup, go to the “Advanced” → “Remote Access Configuration” . Make the following changes…