ADLINK NuPRO-E42 Industrial Control Motherboard Deployment Guide

ATX 12V power supply: CN24, 4-pin socket (+12V and GND).

3.3 Jumpers and Switches

JBAT1 (Clear CMOS): Short circuit 2-3 pins to clear CMOS settings; Normal is 1-2.

JBAT2 (Clear RTC): Used to clear the date and time and RTC registers, it needs to be shorted together with JBAT1 to be completely cleared.

SW13 (COM1 mode switching): DIP switch used to select RS-232 (ON/OFF), RS-422 (ON/ON), or RS-485 (OFF/ON).

Key BIOS settings

BIOS (AMI UEFI) is accessed through the DEL key, and F7 is the boot menu. The following are the configurations that need to be focused on during deployment:

4.1 Advanced

CPU configuration: Can enable/disable hyper threading, virtualization (VT-x), execution disable bit; Adjust the core number of activities.

SATA mode: Supports IDE, AHCI, and RAID. If using RAID 0/1/5/10, it must be set as RAID here, and after POST, press Ctrl+I to enter the Intel RST configuration interface.

USB configuration: Enable Legacy USB Support to support USB keyboard and mouse under DOS; USB 3.0 supports turning on/off; XHCI/EHCI Hand off is used for compatibility with older operating systems.

Super I/O configuration: Configure the I/O address and IRQ of each serial port.

Hardware monitoring: It can view CPU/system temperature, voltage, fan speed, and set FAN1 intelligent speed regulation (automatic/manual/full speed), supporting temperature threshold and PWM slope.

AMT configuration: Intel AMT can be enabled/disabled, and BIOS and OS watchdog timeout (in seconds) can be set.

Serial console redirection: Supports terminal redirection for COM0/COM1, used for remote management, can set baud rate, data bit, stop bit, flow control, etc.

4.2 Chipset

Graphics and Memory Bridge: Optional initial display device (IGD/PEG/PCI), set IGD shared memory size (32M~128M), supports multiple displays.

PCH bridge configuration: PCIe ports (x1 or x4 mode), PCIe sub decoding, etc. can be configured.

ME subsystem: ME can be enabled/disabled and MEBx entry mode can be set (normal/hidden Ctrl+P).

4.3 Security

Administrator password and user password can be set, with a password length of 3-20 characters.

Support TPM security devices (TPM Support needs to be enabled).

4.4 Boot

Can set boot timeout, NumLock status, quiet start (displaying OEM logo), and quick start (skipping some POST).

Adjust the startup priority to support UEFI and Legacy modes.

4.5 Exit

Save/discard changes, restore default, save as user default, boot from EFI Shell, etc.

Programming Practice of Watchdog Timer (WDT)

The watchdog of NuPRO-E42 is based on the IT8783 Super I/O chip and can be programmed through LPC registers. Appendix B of the manual provides complete C language example code (located in the NuPRO NuPRO-E42 WDT directory on the accompanying DVD).

Core operating procedures:

Enter IT8783 configuration mode (write specific sequence to 0x2E or 0x4E).

Select logical device 7 (WDT device).

Set timeout value (in seconds, 1-255) and write the count value through register 0x73.

Enable WDT output (reset the system through KBRST signal), or disable it.

Exit configuration mode.

Typical applications:

After the system starts, call IT8783_WDTRun (count, PLEDFlag), where count is the timeout seconds, and PLEDFlag controls whether to map the onboard LED to the WDT status indication.

The application needs to periodically "feed the dog" (reset the counter) to the WDT register, otherwise timeout will trigger a system reset.

This feature is particularly critical for unmanned devices and can effectively prevent production interruptions caused by software deadlocks.

Driver installation sequence

The manual recommends a Windows 7 64 bit environment with drivers located in a specific directory on the accompanying DVD. Install them in the following order:

Chipset driver (Chipset NuPRO NuPRO-E42 Chipset) - recognizes Q87 chipset components.

Display driver (Display NuPRO NuPRO-E42 VGA 64 Bit) - Install Intel HD Graphics driver.

Ethernet driver (Ethernet NuPRO NuPRO-E42 Ethernet Windows 64) - Install I217LM and I211-AT drivers.

Management Engine Driver (Others ME-Driver) - used for AMT functionality.

USB 3.0 driver (USB3) - Ensure that the USB 3.0 port is working properly.

Intel Rapid Storage Technology (Others RST) - If RAID or AHCI is used, F6 can be preloaded during system installation.

Attention: Before installing Windows, if RAID mode is required, the RST driver must be loaded during the installation process (F6 method).

System resource and interrupt optimization

Appendix C of the manual provides a detailed list of memory mapping, DMA channels, I/O ports, IRQ allocation (PIC and APIC modes), and PCI configuration space mapping. When there is a hardware conflict or the expansion card cannot be recognized, the following points can be referred to:

IRQ sharing: Many PCIe devices share IRQ (for example, PCIe ports 0~7 can be routed to IRQ 16~23). If you insert a high load card, you can adjust the PIRQ routing in the BIOS or disable unused onboard devices (such as serial ports and parallel ports) to release IRQ.

PCI Interrupt Routing: The table shows that PCI slots 0-4 are mapped to PIRQ A~H. If an interrupt storm occurs, you can try replacing the expansion card slot.