ADLINK ETX-AT-N270 Embedded Module

5.2. Hardware monitoring and watchdog

Hardware monitoring: supports monitoring of power supply voltage and CPU temperature.

Watchdog timer: programmable timing range, automatically triggers hardware RESET in case of system deadlock. This function is the last line of defense to ensure system robustness in unmanned field stations or rail transit equipment.

Power supply scheme and environmental adaptability

6.1. Power mode

The module supports AT mode (only requires 5V power supply) and ATX mode (5V+5VSB standby voltage). The AT mode simplifies power design and is suitable for simple industrial control computers that do not require a soft shutdown function; ATX mode supports advanced power management states such as S3 (suspend to memory) and S4 (sleep), which helps reduce standby energy consumption.

6.2. Environmental Specifications

Working temperature: standard range 0 ° C to 60 ° C.

Storage temperature: -20 ° C to 80 ° C.

Anti vibration and anti impact: It can withstand a peak impact of 15G (11ms duration) and a vibration tolerance of 1.88 Gms (5-500 Hz) when not in operation.

It should be noted that if the application scenario involves harsh wide temperature environments (such as -40 ° C), additional evaluation of the heat dissipation scheme or consideration of applying three proof paint is required.

Software and Operating System Ecology

7.1. Standard and Extended Support

The official provides explicit driver support for Windows Vista 32-bit and Windows XP 32-bit. This is extremely friendly for maintaining outdated MES systems on production lines.

7.2. Embedded and Open Source Systems

For embedded scenarios, Linghua provides:

Windows Embedded XP BSP

WinCE 6.0 BSP

Linux 2.6. x BSP and source code support

In addition, AIDI libraries (supporting Win32, WinCE, and Linux) are also provided to simplify the development of GPIO or I2C devices. Although the kernel version is older, Linux support for Atom N270 in the community is still comprehensive, and advanced users can compile the new version of the kernel themselves to obtain security patches.

Selection suggestions and replacement precautions

By analyzing the ordering information, engineers need to pay special attention to the following points when selecting:

LVDS bit width matching: Clarify the parameters of the LCD screen. If the screen is 18 bit, select ETX-AT-N270-18 or -18SD; if it is 24 bit, select the standard or SD version.

Storage interface planning: If you plan to use SATA DOM or 2.5-inch SATA hard drives, please note that the standard version supports 2 SATA ports, while the SD version (supporting SSDDR) only provides 1 SATA port. If PATA parallel port devices are required, all models support dual channels.

Cooling scheme: The manual lists dedicated Heatspreaders (HTS-EAT-B) and Low Profile passive heat sinks (THS-EAT-B). In a compact chassis, it is recommended to use heat sinks with threaded supports to ensure a tight fit between the CPU and the heat sink.

When it comes to "replacement" or "upgrade" scenarios, if the original system uses modules from other brands with ETX 2. x or 3.0 specifications, ETX-AT-N270 has a highly standardized advantage in mechanical dimensions (95mm x 114mm) and pin definitions. But it is necessary to focus on checking the voltage level of the PCI/ISA bus on the motherboard and the allocation method of Legacy IRQ by BIOS.