Chapter 4

BIOS Setup Utility

USB 2.0 Controller Mode – [Full Speed] or [Hi Speed]

This field configures the USB 2.0 controller for [Full Speed = 12 Mbps] or [Hi Speed = 480 Mbps]

BIOS EHCI Hand-Off – [Disabled] or [Enabled]

This field is used as work around for operating systems (OSs) that do not have EHCI hand-off support. The EHCI ownership change should be claimed by the EHCI driver.

USB Beep Message – [Disabled] or [Enabled]

If this field is set to [Enabled], the BIOS issues a beep signal each time a USB device is found and initialized during the boot sequence.

USB Stick Default Emulation – [Auto] or [Hard Disk]

Use this field to select the (default) USB memory stick emulation type.

If [Auto] is selected, the BIOS selects FDD or HDD emulation based on the storage size of the memory stick. The emulation type can be manually reconfigured for each device using the Mass Storage Device Configuration submenu. However, if [Auto] has not been selected, the USB MASS Storage Device Configuration menu selection will not appear on screen, which will not allow you to change the emulation type.

If [Hard Disk] is selected, the USB memory stick will use hard disk drive (HDD) emulation.

USB Mass Storage Reset Delay – [10 sec], [20 sec], [30 sec], or [40 sec]

This field determines the number of seconds POST waits after issuing a reset (start unit command) to the USB mass storage device.

>USB MASS Storage Device Configuration

This field and all subsequent USB fields only appear on screen if USB Stick Default Emulation is set to [Auto].

Every USB Mass Storage Device (MSD) recognized by the BIOS will have an emulation type setup field. This field specifies the type of emulation the BIOS provides for the device.

CAUTION To prevent USB boot problems, ensure you match the USB mass storage device's formatted type and the emulation type provided by the BIOS to boot properly.

Device #1 – [Mfg + model] or [USB2.0 device type]

Emulation Type – [Auto], [Floppy], [Forced FDD], [Hard Disk], or [CDROM]

This field allows you to override or manually set the USB emulation device type for USB Device #1, listed above.

If this field is set to [Auto], the BIOS will emulate USB devices less than 530 MB as Floppy and devices larger than 530 MB as Hard Drives.

If this field is set to [Floppy], the BIOS will emulate the device as a floppy drive.

If this field is set to [Forced FDD], the BIOS will force the HDD formatted drive to be emulated as FDD (except ZIP drives). This only functions for hard drives formatted with FAT12, FAT16, or FAT32.

If this field is set to [Hard Disk], the USB device is emulated as a hard disk drive.

If this field is set to [CDROM], the BIOS assumes the device (CD-ROM) is formatted as a bootable media, specified by the 'El Torito' Format Specification.

XTX 820

Reference Manual

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Ampro Corporation XTX 820 manual USB Mass Storage Device Configuration

XTX 820 specifications

Ampro Corporation has made a significant mark in the world of embedded systems with its versatile XTX 820 embedded computing module. The XTX 820 is designed to cater to a wide array of applications, ranging from industrial automation to medical devices, providing developers with a powerful yet compact solution.

One of the standout features of the XTX 820 is its advanced processing capabilities. The module is equipped with an Intel Atom processor, which delivers impressive performance while operating at low power levels. This combination makes the XTX 820 suitable for environments where energy efficiency is essential. The Atom processor allows for seamless multitasking and support for demanding applications without compromising on thermal efficiency.

In terms of memory, the XTX 820 supports a range of configurations, accommodating both DDR2 and DDR3 memory types. With a maximum of up to 4GB of onboard memory, this module ensures that applications can run smoothly and efficiently across various tasks. The flexibility in memory options enables developers to tailor their designs according to specific project needs.

Connectivity is another strong suit of the XTX 820. The module comes with multiple I/O interfaces that enhance its utility in various applications. It features USB, Serial, and Parallel ports, along with support for LVDS display and audio interfaces. This diverse range of connectivity options allows the XTX 820 to integrate easily with a variety of systems and devices, facilitating seamless data transfer and communication.

Security is increasingly critical in embedded systems, and Ampro has integrated robust security features into the XTX 820. This includes support for hardware-based security solutions, which can protect sensitive data and prevent unauthorized access. Such characteristics make the module a suitable choice for industries where data integrity is paramount.

Furthermore, the XTX 820 boasts an impressive range of environmental operating conditions. It is designed to function in extreme temperatures, making it suitable for outdoor and industrial applications where fluctuations in temperature can be a concern.

In conclusion, the Ampro Corporation XTX 820 embedded computing module emerges as a versatile platform that combines performance, memory flexibility, robust connectivity, and enhanced security features. Its design is tailored to meet the demands of various industries, making it a reliable choice for developers looking for advanced embedded solutions.