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Copyright 2021, WINSYSTEMS, Inc. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of WINSYSTEMS, Inc. The information in the document is subject to change without notice. The information furnished by WINSYSTEMS, Inc.
COMeT10-3900/Introduction Introduction The BIOS used in this design is a custom version of the AMI Aptio V x86 BIOS. References The following Intel Atom E3900 BIOS specification documents can assist developers in the creation of firmware for the Intel Atom E3900: •...
1. Insert a USB flash drive containing the BIOS update program into a USB socket on the COMeT10-3900 platform. 2. Turn on the COMeT10-3900 and press ESC or DEL key during the boot process, which starts the BIOS setup utility.
1. Insert a USB flash drive containing the EC update program into a USB socket on the COMeT10-3900 platform. 2. Turn on the COMeT10-3900 and press the ESC or DEL key during the boot process, which starts the BIOS setup utility.
This section provides details on the system parameters that are managed by the BIOS. Details on the possible parameter values are included. There are multiple variations of the COMeT10-3900 module. BIOS options regarding display output and UART support differ based on which module is being used.
Configuration The BIOS Configuration page serves as the top-level BIOS page for configuring peripherals and devices present on the COMeT10-3900 platform. The configuration subpages include pages for the CPU, network interfaces, serial ports, USB ports, SATA, and other features. The settings for each configuration subpage are described in the device sections.
COMeT10-3900/BIOS Settings Feature Description Choices Default Two on-die digital thermal sensors can be read Enable, Disable via an internal register of the processor. The Disable DTS is the preferred method of reading the processor die temperature because they are located much closer to the hottest portions of the die.
COMeT10-3900/BIOS Settings Feature Description Choices Default Serial IRQ Mode Sets the Serial IRQ mode as continuous or quiet. In Quiet, Continuous continuous mode, the host continually generates Continuous SERIRQ frames to check for device interrupts. In quiet mode, the host waits for a SERIRQ slave to generate a request.
COMeT10-3900/BIOS Settings 4.3.4 Video There are two variations of the COMeT10-3900 module providing support for either LVDS or eDP output. LVDS Options Feature Description Choices Default GOP Driver Enables/disables the Graphics Output Protocol Enable, Enable (GOP) driver. When the GOP driver is enabled, it...
180, 200, 220, 240, 255 4.3.5 PCIe The four PCIe lanes (channels 0-3) provided by the COMeT10-3900 are configured as one x4 PCIe lane. The four PCIe lanes (channels 0-3) can be arranged in different configurations as shown in the list below. Contact a WINSYSTEMS application engineer for additional information.
COMeT10-3900/BIOS Settings • Two x2 PCIe lanes • One x4 PCIe lane (default) NOTE If using configuration 1, only three x1 PCIe lanes are available due to the LAN (Intel I210) using one of the available four root ports. Feature...
Interface Enables/disables the on-board eMMC storage Enable, Enable device Disable 4.3.8 USB Configure the COMeT10-3900 USB ports and view a summary of installed devices. Feature Description Choices Default USB 3.0 Port #1 Enables/disables USB port #1. When disabled, any...
COMeT10-3900/BIOS Settings Feature Description Choices Default Device reset Sets the USB mass storage device Start Unit command 10 sec, 20 20 sec time-out time-out. sec, 30 sec, 40 sec Device power- Specifies the maximum time the device takes before it...
COMeT10-3900/BIOS Settings Feature Description Choices Default Wake on Lan Permits the two Ethernet ports to wake the system Enable, Enable from a sleep state. Disable State After G3 Specify which state to enter when power is re- S0 State, S5 S0 State applied after a power failure (G3 state).
COMeT10-3900/BIOS Settings Feature Description Choices Default Thermal Sampling Specifies the polling interval in 10ths of seconds. 0 to 100 Period A value of 0 tells the driver to use interrupts. The granularity of the sampling period is 0.1 seconds. For example, if the sampling period is 30 seconds, then _TSP needs to report 300;...
COMeT10-3900/BIOS Settings NOTE You must navigate to the Save & Exit tab, select Save Changes and Reset, then press Enter for the TPM reset to occur. 4.3.13 Serial Ports Configure the two serial ports. Serial port menus are different depending on module type.
COMeT10-3900/BIOS Settings 4.3.18 Intel I210 Gigabit Network Connection 1 & 2 Configure the Intel I210 Network Interface Controller (NIC), and view specific technical information such as link status, and MAC address. Feature Description Choices Default Provides options to configure the link speed and enables/disables Wake on Lan.
There are no choices. Enables expert user to modify Secure Boot Policy variables without full Management authentication. NOTE: These settings are for advanced users only. Contact a WINSYSTEMS application engineer for additional information. v1.1 www.winsystems.com Page 23...
COMeT10-3900/BIOS Settings Boot Configure advanced boot options for the COMeT10-3900 such as BIOS bootup and logo display, device boot order, and CSM support. Feature Description Choices Default Quiet Boot Enables/disables quiet boot. Enabling this option Enable. Disable hides the BIOS post messages on bootup and Disable displays the WINSYSTEMS logo.
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COMeT10-3900/BIOS Settings Feature Description Choices Default • New Boot Controls the placement in the boot order of newly Default, Default Option Pol- detected UEFI boot options. If default is selected, a Place First, new device is moved to the bottom of the boot Place Last priority list but in front of the UEFI shell.
COMeT10-3900/BIOS Settings Save & Exit Save custom BIOS options to the CMOS ROM. These options can be saved as temporary changes or saved as user defaults. Additionally, booting to the UEFI shell is as easy as selecting UEFI: Built-in EFI Shell under Boot Override and pressing Enter.
Software To reset the BIOS CMOS parameters to factory defaults: 1. Turn on the COMeT10-3900 and press ESC or DEL during the boot process, which starts the BIOS setup utility. 2. In the BIOS setup utility, use the arrow keys to highlight the Save &...
COMeT10-3900/Software Description Software Description This section describes the AMI BIOS components to be used in the implementation of the COMeT10-3900 BIOS firmware. Software Design Specification: UEFI Operating System Support The BIOS supports booting the following UEFI-compliant operating systems: • Windows 10 x64, IoT Core, and Professional •...
COMeT10-3900/Software Description Software Design Requirements: BIOS Components The BIOS includes the following components: • Advanced Host Controller Interface (AHCI) support: Provides SATA host controller functionality. • Display switching in setup: Implements display switching using the UEFI GOP driver under the SETUP environment.
COMeT10-3900/AMI POST Codes AMI POST Codes POST Codes These codes are displayed during a normal boot process. If the boot fails, the last code displayed provides an indicator of the failing code. Regular Boot POST Codes Code PEI_CORE_STARTED 0x10 PEI_CAR_CPU_INIT...
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