ADLINK NuPRO-595 Industrial Half length SBC Motherboard Configuration and Maintenance Guide

Intel Pentium 2.5× 166 MHz OFF / ON / ON

Intel Pentium 3× 200 MHz OFF / ON / OFF

Intel Pentium 3.5× 233 MHz OFF / OFF / OFF

AMD K6-2/-3 2.5× 166 MHz OFF / ON / ON

AMD K6-2/-3 3× 200 MHz OFF / ON / OFF

AMD K6-2/-3 3.5× 233 MHz OFF / OFF / OFF

Cyrix MII 2× 133 MHz ON / OFF / ON

Cyrix MII 2.5× 166 MHz OFF / ON / ON

Cyrix MII 3× 200 MHz OFF / ON / OFF

(Note: "ON" in the table indicates short circuit, and "OFF" indicates open circuit; The specific combination needs to be confirmed by referring to the manual table. ）

2. CPU core voltage (JP9)

The VCORE required for different processors varies, and JP9 offers multiple options ranging from 1.9V to 2.8V. For example:

1.9V: JP9 pin 9 OFF, 7 ON, 5 ON, 3 ON, 1 OFF

2.0V: All OFF

2.1V：9 ON、7 OFF、5 OFF、3 OFF、1 OFF

2.2V：9 OFF、7 OFF、5 OFF、3 OFF、1 ON

2.3V~2.8V and so on. When replacing the CPU, it is necessary to verify its voltage specifications to avoid overvoltage damage.

3. CPU I/O voltage (JP4, JP5)

Set I/O buffer voltage, optional 2.5V or 3.3V. Usually matched with CPU type, such as Pentium MMX using 3.3V.

4. Clear CMOS (JP2)

Short circuiting 1-2 of JP2 can clear CMOS content (including BIOS password and settings), and after restoring normal operation, the jumper needs to be restored to 2-3 (normal working mode).

5. LCD power supply (JP1)

Select the required voltage for the LCD panel, which can be either 3.3V or 5V, and must be set according to the panel specifications.

Onboard interface and external connection

The NuPRO-595 offers a wide range of I/O connectors, some of which require additional cable connections.

1. IDE (CN1) and FDD (CN3)

IDE: 40 pin standard interface, supporting master/slave devices (selected through IDE cable).

FDD: 34 pin interface, supports up to two floppy drives.

2. Serial port (COM1/COM2)

COM1 (CN11): 10 pin pin, RS-232 level, providing DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, RI.

COM2 (CN10): Same 10 pin, but can be set to RS-422/485 via jumper (requires additional configuration of transceiver control).

3. Parallel (CN2)

25 pin D-sub female socket (usually led out through a bracket), supporting SPP/EPP/ECP.

4. PS/2 keyboard and mouse (CN9, CN8)

All are 6-pin Mini DIN pins, and the keyboard provides Clock, Data,+5V, and GND; Mouse is similar.

5. VGA (CN6) and LCD (CN4/CN5)

VGA: 15-pin D-sub analog output.

LCD: Supports TFT/DSTN panels through dedicated connectors for synchronous or independent display.

6. Ethernet (CN7, only 595)

RJ-45 connector with dual color LED indicating link and activity status.

7. Power input (CN13)

4-pin socket, providing+12V, GND, GND,+5V, compatible with AT power supply. If using an ATX power supply, it is necessary to connect the ATX control signal (such as CN1's Power On).

8. Front panel control interface (CN1)

Including power LED, keyboard lock, reset switch, hard disk LED, ATX power switch, etc., all provided in the form of 2.54mm pins.

Watchdog timer configuration

The NuPRO-595 is equipped with a programmable watchdog and a logic device based on the Winbond W83977EF super I/O chip. Its core function is to automatically generate a reset or interrupt signal when the system software fails to "feed the dog" on time, thereby restoring normal system operation. This is crucial for unmanned industrial sites.

1. Configure registers

The watchdog related registers are located in CRF2 (counter preset value), CRF3 (reset/interrupt trigger condition), and CRF4 (counting unit - seconds or minutes) of logic device 8. The configuration is achieved by accessing the I/O ports 3F0h/3F1h, which requires entering the extended function mode first (writing 87h twice to 3F0h), and exiting after the configuration is complete (writing 0Ah).

2. Practical application suggestions

In applications, the dog can be fed by periodically writing overload commands to specific I/O ports.

If the reset function is not required, CRF2 can be set to 00 to disable timeout.

The counting unit can be selected in seconds or minutes, suitable for scenarios with different response speed requirements.

Key points of BIOS settings

Award BIOS provides a variety of options, including several closely related to industrial applications:

1. Characteristics of Chipset

System BIOS Cacheable/Video BIOS Cacheable: It is recommended to enable it to improve performance.

Memory Hold at 15M-16M: If the Legacy ISA card requires this address space, enable it.

Power Supply Type: Selecting AT or ATX affects power management and wake-up functions.

2. Power management

Power Management: If CPU overheat protection is required, it cannot be set to Disabled.

Video Off Method: Recommend V/H SYNC+Blank (best compatibility).

PowerOn by Ring/Wake Up On LAN: If remote wake-up is required, ensure that the ATX power supply and relevant jumpers are enabled.

3. PnP/PCI configuration

Resources Controlled by: It is recommended to set it to Manual to manually allocate IRQ to ISA devices and avoid conflicts.

PCI IDE IRQ Map To: Usually set to PCI-AUTO, BIOS automatically assigns IRQ14/15.

4. Integrate peripherals

Onboard VGA/LAN: enabled by default, can be turned off to free up resources if an external expansion card is used.

UART Mode Select: COM2 can be set to IrDA or ASKIR for infrared communication (corresponding hardware required).