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VIA Technologies NAB-7400 User Manual

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User's Manual
NAB-7400
Version 1.11
April 2, 2007

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  • Page 1 User’s Manual NAB-7400 Version 1.11 April 2, 2007...
  • Page 2 However, VIA Technologies assumes no responsibility for the use or misuse of the information in this document and for any patent infringements that may arise from the use of this document.
  • Page 3 FCC-B Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

  • Page 4: Safety Instructions

    Safety Instructions Always read the safety instructions carefully. Keep this User's Manual for future reference. Keep this equipment away from humidity. Lay this equipment on a reliable flat surface before setting it up. The openings on the enclosure are for air convection hence protects the equipment from overheating.

  • Page 5: Table Of Contents

    ABLE OF ONTENTS Table of Contents ..............i Chapter 1 ................1 Specifications ..............1 Mainboard Specifications ............. 2 Mainboard Layout............... 4 Back Panel Layout .............. 5 Chapter 2 ................6 Installation................ 6 CPU ................. 7 Memory Module Installation ..........9 Connecting the Power Supply ..........
  • Page 6 PNP/PCI Configurations ............49 Frequency / Voltage Control ..........51 Load Fail-Safe Defaults ............53 Load Optimized Defaults............. 54 Set Supervisor / User Password ........... 55 Save & Exit Setup ............. 57 Exit Without Saving ............58 Chapter 4 ................59 Driver Installation .............
  • Page 7 This page is left intentionally blank.

  • Page 9: Chapter 1

    HAPTER Specifications The ultra-compact and highly integrated VIA NAB-7400 uses the mainboard form-factor developed by VIA Technologies, Inc. as part of the company’s open industry-wide Total Connectivity initiative. The mainboard enables the creation of an exciting new generation small, ergonomic,...

  • Page 10: Mainboard Specifications

    Chapter 1 AINBOARD PECIFICATIONS • Support VIA C7 1.0GHz NanoBGA2 Processor Chipset • VIA CN700 North Bridge • VIA VT8237R-Series South Bridge Graphics • Integrated UniChrome™ Pro 3D/2D AGP with MPEG-2 Video Decoding Acceleration Memory • 1 x DDR2 533/400 DIMM slot (up to 1 GB) Expansion Interface •...

  • Page 11: Form Factor

    Specifications Onboard I/O Connectors • 1 x VGA pin connector • 1 x Digital I/O pin connector • 1 x PS/2 pin connector for keyboard and mouse • 1 x PCI pin header for storage module board • 1 x PCI extension pin connector (for BXB board) •...

  • Page 12: Mainboard Layout

    Chapter 1 AINBOARD AYOUT...

  • Page 13: Back Panel Layout

    Specifications ANEL AYOUT...

  • Page 14: Chapter 2

    HAPTER Installation This chapter provides with information about hardware installation procedures. It is recommended to use a grounded wrist strap before handling computer components. Electrostatic discharge (ESD) can damage some components.

  • Page 15: Cpu

    Installation The VIA NAB-7400 mainboard can support VIA C7 NanoBGA2 Processor.
  • Page 16 Chapter 2 CPU Fan and System Fan: CPUFAN and SYSFAN The CPUFAN (CPU fan) and SYSFAN (system fan) run on +12V and maintain system cooling. When connecting the wire to the connectors, always be aware that the red wire is the Positive and should be connected to the +12V. The black wire is Ground and should always be connected to GND.

  • Page 17: Memory Module Installation

    Installation EMORY ODULE NSTALLATION The VIA NAB-7400 mainboard provides one 240-pin DIMM slot for DDR2 400/533 SDRAM memory modules and supports the memory size up to 1GB. DIMM DDR2 SDRAM Module Installation Procedures • Locate the DIMM slot in the motherboard.

  • Page 18: Connecting The Power Supply

    Chapter 2 ONNECTING THE OWER UPPLY The VIA NAB-7400 mainboard supports a conventional ATX power supply for the power system. Before inserting the power supply connector, always make sure that all components are installed correctly to ensure that no damage will be caused.

  • Page 19: Back Panel Ports

    Installation ANEL ORTS The back panel has the following ports: Serial port: COM 1 The 9-pin COM 1 port is for pointing devices or other serial devices. USB 2.0 ports The USB ports is for connecting to external peripheral devices. RJ-45 10/100 LAN ports The mainboard provides four standard RJ-45 ports which allow connection to a Local Area...

  • Page 20: Connectors

    Chapter 2 ONNECTORS Hard Disk Connectors: IDE1 & IDE2 The mainboard has an Ultra DMA 133/100/66 controller. You can connect up to four hard disk drives, CD-ROM and other devices. The primary hard drive should always be connected to IDE1 as the master drive.
  • Page 21 Installation Case Connector: F_PANEL The F_PANEL pin header allows you to connect the power switch, reset switch, power LED, sleep LED, HDD LED and the case speaker. F_PANEL Signal Signal HD_LED -PLED_2 PW_BN RST_SW SPEAK -SLEEP_LED HDD LED (HD_LED): pin 2 & pin 4 HDD LED shows the activity of a hard disk drive.
  • Page 22 Chapter 2 Serial ATA Connectors: SATA1 and SATA2 SATA1-2 These next generation connectors support the thin Serial ATA cables for primary internal storage devices. The current Serial ATA interface allows up to 150 MB/s data transfer rate, faster than the standard parallel ATA with 133 MB/s (Ultra DMA). VGA Connectors The internal pin header is to support VGA output.
  • Page 23 Installation USB Pin Connector: USB 2-4 The mainboard provides 3 front USB pin headers, allowing up to 6 additional USB 2.0 ports up to maximum throughput of 480 Mbps. Connect each 2-port USB cable into the pin header. This port can be used to connect high-speed USB interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modem and the like.
  • Page 24 Chapter 2 Serial Port Connector: COM 2/3/4 COM2/3/4 pin headers can be used to attach additional ports for serial mouse or other serial devices. COM2 Signal Signal RIN12 RIN32 DOUT22 DOUT32 RIN22 DOUT12 RIN42 XRI2# COM3 Signal Signal RIN13 RIN33 DOUT23 DOUT33 RIN23...
  • Page 25 Installation Digital I/O Connector: DIO General purpose input and output. Signal Signal +12V GPO14 GPI20 GPO13 GPI21 GPO4 GPI22 GPO29 GPI9 KBMS Connector: JKB/MS The mainboard provides a PS2 pin header to attach a PS2 keyboard and mouse. JKB/MS Signal Signal VCCE VCCE...

  • Page 26: Jumpers

    Chapter 2 UMPERS The mainboard provides jumpers for setting some mainboard functions. This section will explain how to change the settings of the mainboard functions using the jumpers. Clear CMOS Connector: CLEAR_CMOS The onboard CMOS RAM stores system configuration data and has an onboard battery power supply.
  • Page 27 Installation BIOS Write Protection: WP1 This jumper allows you to protect from flashing the BIOS. BIOS Write Protection setting: pin1 = /WP & /TBL, pin2 = GND, short 1-2. WDTO1 Watchdog Timer: WDTO1 Watchdog Timer setting: pin1 = -WDTO, pin2 = VCOREGD, short 1-2. S_LED1 S_LED1 Pin header for LED indicator of SATA HD, short 1-2.

  • Page 28: Slots

    Chapter 2 LOTS Peripheral Component Interconnect: Mini PCI The Mini PCI interface is designed for the BXB Expansion module for supporting additional functions as 1 Mini-PCI slot, 1 CF card reader interface, and 2 x 44 pin IDE connectors. Among those 2 IDE connectors, one of them has the DOM support.

  • Page 29: Chapter 3

    HAPTER BIOS Setup This chapter gives a detailed explanation of the BIOS setup functions.

  • Page 30: Entering Setup

    Chapter 3 NTERING ETUP Power on the computer and press <Delete> during the beginning of the boot sequence to enter the BIOS setup menu. If you missed the BIOS setup entry point, you may restart the system and try again.

  • Page 31: Control Keys

    BIOS Setup ONTROL Keys Description Up Arrow Move to the previous item Down Arrow Move to the next item Left Arrow Move to the item in the left side Right Arrow Move to the item in the right side Enter Select the item Escape Jumps to the Exit menu or returns to the main menu from a...

  • Page 32: Navigating The Bios Menus

    Chapter 3 BIOS M AVIGATING THE ENUS The main menu displays all the BIOS setup categories. Use the control keys Up/Down arrow keys to select any item/sub-menu. Description of the selected/highlighted category is displayed at the bottom of the screen. An arrow symbol next to a field indicates that a sub-menu is available (see figure below).

  • Page 33: Getting Help

    BIOS Setup ETTING The BIOS setup program provides a “General Help” screen. You can display this screen from any menu/sub-menu by pressing <F1>. The help screen displays the keys for using and navigating the BIOS setup. Press <Esc> to exit the help screen.

  • Page 34: Main Menu

    Chapter 3 Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Load Fail-Safe Defaults Advanced BIOS Features Load Optimized Defaults Advanced Chipset Features Set Supervisor Password Integrated Peripherals Set User Password Power Management Setup Save & Exit Setup PnP / PCI Configurations Exit Without Saving Frequency / Voltage Control Esc : Quit...
  • Page 35 BIOS Setup Frequency/Voltage Control Use this menu to set the system frequency and voltage control. Load Fail-Safe Defaults Use this menu option to load the BIOS default settings for minimal and stable system operations. Load Optimized Defaults Use this menu option to load BIOS default settings for optimal and high performance system operations.

  • Page 36: Standard Cmos Features

    Chapter 3 CMOS F TANDARD EATURES Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Date (mm:dd:yy) Tue, 21 2004 Item Help Time (hh:mm:ss) 20 20 20 Menu Level IDE Channel 0 Master Change the day, month, IDE Channel 0 Slave year and century IDE Channel 1 Master IDE Channel 1 Slave...

  • Page 37: Ide Drives

    BIOS Setup IDE D RIVES Phoenix - AwardBIOS CMOS Setup Utility IDE Channel 0 Master IDE HDD Auto-Detection [Press Enter] Item Help Menu Level IDE Channel 0 Master [Auto] Access Mode [Auto] To auto-detect the HDD's size, head... on this channel Capacity 0 MB Cylinder...

  • Page 38: Advanced Bios Features

    Chapter 3 BIOS F DVANCED EATURES Phoenix - AwardBIOS CMOS Setup Utility Advanced BIOS Features CPU Feature [Press Enter] Item Help Hard Disk Boot Priority [Press Enter] Virus Warning [Disabled] Menu Level CPU L1 & L2 Cache [Enabled] Quick Power On Self Test [Enabled] First Boot Device [USB-FDD]...
  • Page 39 BIOS Setup Quick Power On Self-Test Shortens Power On Self-Test (POST) cycle to enable shorter boot up time. Setting Description Enabled Shorten Power On Self Test (POST) cycle and bootup time Disabled Standard Power On Self Test (POST) First/Second/Third Boot Device Set the boot device sequence as BIOS attempts to load the disk operating system.
  • Page 40 Chapter 3 Security Option Selects whether the password is required every time the System boots, or only when you enter Setup. Setting Description Setup Password prompt appears only when end users try to run BIOS Setup System Password prompt appears every time when the computer is powered on and when end users try to run BIOS Setup APIC Mode Enables APIC (Advanced Programmable Interrupt Controller) functionality.

  • Page 41: Cpu Feature

    BIOS Setup CPU F EATURE Phoenix - AwardBIOS CMOS Setup Utility CPU Feature [16 Min] Delay Prior to Thermal Item Help [Thermal Monitor 1] Thermal Management [ 0 X] Menu Level TM2 Bus Ratio [0.716V] TM2 Bus VID [Enabled] Execute Disable Bit [Enabled] C7 CMPXCHG8 [Disabled]...
  • Page 42 Chapter 3 TM2 Bus VID Represent the voltage of the throttled performance state that will be initiated when the on-die sensor goes from not hot to hot. Settings: [0.700, 0.716, 0.732, 0.748, 0.764, 0.780, 0.796, 0.812, 0.828, 0.844, 0.860, 0.876, 0.892, 0.908, 0.924, 0.940, 0.956, 0.972, 0.988, 1.004, 1.020, 1.036, 1.052, 1.068, 1.084, 1.100, 1.116, 1.132, 1.148, 1.164, 1.180, 1.196, 1.212, 1.228, 1.244, 1.260, 1.276, 1.292, 1.308, 1.324, 1.340, 1.356, 1.372, 1.388, 1.404, 1.420, 1.436, 1.452, 1.468, 1.484, 1.500, 1.516, 1.532,...

  • Page 43: Hard Disk Boot Priority

    BIOS Setup RIORITY Phoenix - AwardBIOS CMOS Setup Utility Hard Disk Boot Priority Item Help Pri. Master : Pri. Master : Menu Level Pri. Master : Pri. Master : Use < > or < > to Pri. Slave select a device, then Sec.

  • Page 44: Advanced Chipset Features

    Chapter 3 DVANCED HIPSET EATURES Phoenix - AwardBIOS CMOS Setup Utility Advanced Chipset Features [PCI Slot] Display Card Priority Item Help [Press Enter] AGP & P2P Bridge Control Menu Level [Press Enter] CPU & PCI Bus Control [AUTO] AGP Driving Control If there are display cards on AGP Driving Value both AGP and PCI slots,...
  • Page 45 BIOS Setup Panel Type This setting refers to the native resolution of the display being used with the system. Settings: [Key in a HEX number ranged between 0000~000F]...

  • Page 46: Agp & P2P Bridge Control

    Chapter 3 AGP & P2P B RIDGE ONTROL Phoenix - AwardBIOS CMOS Setup Utility AGP & P2P Bridge Control AGP Aperture Size [128M] Item Help AGP 2.0 Mode [1X] Menu Level AGP Fast Write [Disabled] AGP 3.0 Calibration cycle [Enabled] VGA Share Memory Size [64M] Direct Frame Buffer...
  • Page 47 BIOS Setup AGP 3.0 Calibration cycle Settings: [Enabled, Disabled] VGA Share Memory Size Settings: [Disabled, 16M, 32M, 64M] Direct Frame Buffer Settings: [Enabled, Disabled]...

  • Page 48: Cpu & Pci Bus Control

    Chapter 3 CPU & PCI B ONTROL Phoenix - AwardBIOS CMOS Setup Utility CPU & PCI Bus Control VLink mode selection [By Auto] Item Help VLink 8X Support [Enabled] Menu Level DRDY_Timing [Default] : Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help F5: Previous Values...

  • Page 49: Integrated Peripherals

    BIOS Setup NTEGRATED ERIPHERALS Phoenix - AwardBIOS CMOS Setup Utility Integrated Peripherals Onboard IDE Channel 1 [Enabled] Item Help Onboard IDE Channel 2 [Enabled] Menu Level IDE Prefetch Mode [Enabled] IDE HDD Block Mode [Enabled] OnChip SATA [Enabled] To control the onboard SATA Mode [RAID] primary IDE Channel.
  • Page 50 Chapter 3 OnChip SATA Settings: [Enabled, Disabled] SATA Mode Serial ATA is the latest generation of the ATA interface. Serial ATA hard drives deliver transfer speeds of up to 150MB/sec. Setting Description Supports two SATA plus two PATA hard disk drives RAID Only SATA supports RAID OnChip USB Controller...
  • Page 51 BIOS Setup Onboard Serial Port 3 Settings: [Disabled, 3F8, 2F8, 3E8, 2E8] Serial Prot 3 USB IRQ Settings: [IRQ3, IRQ 4, IRQ 5, IRQ 10, IRQ 11] Onboard Serial Port 4 Settings: [Disabled, 3F8, 2F8, 3E8, 2E8] Serial Prot 4 USB IRQ Settings: [IRQ3, IRQ 4, IRQ 5, IRQ 10, IRQ 11] Watchdog Timer Select Settings: [Disabled, 20 Sec, 30 Sec, 40 Sec, 1 Min, 2 Min, 4 Min]...

  • Page 52: Power Management Setup

    Chapter 3 OWER ANAGEMENT ETUP Phoenix - AwardBIOS CMOS Setup Utility Power Management Setup HDD Power Down [ 1 Min] Item Help Power Management Timer [Disabled] Menu Level Video Off Option [Suspend -> Off] AC Loss Auto Restart [On] Select the idle time before Peripherals Activities [Press Enter] hard disk go into power...
  • Page 53 BIOS Setup AC Loss Auto Restart The field defines how the system will respond after an AC power loss during system operation. Setting Description Keeps the system in an off state until the power button is pressed Restarts the system when the power is back Former-Sts Former-Sts...

  • Page 54: Peripheral Activities

    Chapter 3 ERIPHERAL CTIVITIES Phoenix - AwardBIOS CMOS Setup Utility Peripherals Activities VGA Event [OFF] Item Help COM Event [COM] [ON] HDD Event Menu Level [OFF] PCI Master Event [Disabled] Decide whether or not PowerOn by PCI Card the power management Wake Up On LAN/Ring [Disabled] unit should monitor...
  • Page 55 BIOS Setup PowerOn by PCI Card Enables activity detected from any PCI card to power up the system or resume from a suspended state. Such PCI cards include LAN card, onboard LAN controller, onboard USB ports, etc. Settings: [Disabled, Enabled] Wake Up On LAN/Ring Decide whether or not any Ring-In signals from Modem can wake up the system from a suspended state.

  • Page 56: Irqs Activities

    Chapter 3 CTIVITIES Phoenix - AwardBIOS CMOS Setup Utility IRQs Activities Primary INTR [ON] Item Help IRQ3 (COM 2) [Enabled] Menu Level IRQ4 (COM 1) [Enabled] IRQ5 (COM 3) [Enabled] If you choose Disabled, the IRQ6 (Floppy Disk) [Disabled] power management unit will IRQ7 (Reserved) [Disabled] IRQ8 (RTC Alarm)

  • Page 57: Pnp/Pci Configurations

    BIOS Setup PNP/PCI C ONFIGURATIONS Phoenix - AwardBIOS CMOS Setup Utility PnP / PCI Configurations PNP OS Installed [No] Item Help Reset Configuration Data [Disabled] Menu Level Resources Controlled By [Auto(ESCD)] Select Yes if you are using a IRQ Resources Press Enter Plug and Play capable Assign IRQ For VGA...
  • Page 58 Chapter 3 Reset Configuration Data This field should usually be left “Disabled”. Setting Description Enabled Resets the ESCD (Extended System Configuration Data) after exiting BIOS Setup if a newly installed PCI card or the system configuration prevents the operating system from loading Disabled Default setting...

  • Page 59: Frequency / Voltage Control

    BIOS Setup REQUENCY OLTAGE ONTROL Phoenix - AwardBIOS CMOS Setup Utility Frequency / Voltage Control DRAM Clock [By SPD] Item Help DRAM Timing [Auto By SPD] Menu Level SDRAM CAS Latency Bank Interleave Disabled Precharge to Active(Trp) Active to Precharge(Tras) Active to CMD(Trcd) REF to ACT/REF (Trfc) ACT(0) to ACT(1) (TRRD)
  • Page 60 Chapter 3 Write Recovery Time (Twr) Settings: [2T, 3T, 4T, 5T] DRAM Command Rate This field is for setting how fast the memory controller sends out commands. Lower setting equals faster command rate. Note: Some memory modules may not be able to handle lower settings.

  • Page 61: Load Fail-Safe Defaults

    BIOS Setup EFAULTS Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Load Fail-Safe Defaults Advanced BIOS Features Load Optimized Defaults Advanced Chipset Features Set Supervisor Password Integrated Peripherals Set User Password Power Management Setup Save & Exit Setup PnP / PCI Configurations Load Fail-Safe Defaults (Y/N)? Exit Without Saving Frequency / Voltage Control...

  • Page 62: Load Optimized Defaults

    Chapter 3 PTIMIZED EFAULTS Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Load Fail-Safe Defaults Advanced BIOS Features Load Optimized Defaults Advanced Chipset Features Set Supervisor Password Integrated Peripherals Set User Password Save & Exit Setup Power Management Setup PnP / PCI Configurations Exit Without Saving Load Optimized Defaults (Y/N)?

  • Page 63: Set Supervisor / User Password

    BIOS Setup UPERVISOR ASSWORD Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Load Fail-Safe Defaults Advanced BIOS Features Load Optimized Defaults Advanced Chipset Features Set Supervisor Password Integrated Peripherals Set User Password Save & Exit Setup Power Management Setup PnP / PCI Configurations Exit Without Saving Save &...
  • Page 64 Chapter 3 To disable the password, press <Enter> when prompted to enter a new password. A message will show up to confirm disabling the password. To cancel the process press <Esc>. Additionally, when a password is enabled, the BIOS can be set to request the password each time the system is booted.

  • Page 65: Save & Exit Setup

    BIOS Setup & E ETUP Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Load Fail-Safe Defaults Advanced BIOS Features Load Optimized Defaults Advanced Chipset Features Set Supervisor Password Integrated Peripherals Set User Password Power Management Setup Save & Exit Setup PnP / PCI Configurations Exit Without Saving SAVE to CMOS &...

  • Page 66: Exit Without Saving

    Chapter 3 ITHOUT AVING Phoenix - AwardBIOS CMOS Setup Utility Standard CMOS Features Load Fail-Safe Defaults Advanced BIOS Features Load Optimized Defaults Advanced Chipset Features Set Supervisor Password Integrated Peripherals Set User Password Power Management Setup Save & Exit Setup PnP / PCI Configurations Exit Without Saving Quit Without Saving (Y/N)?

  • Page 67: Chapter 4

    HAPTER Driver Installation This chapter gives you brief descriptions of each mainboard driver and application. You must install the VIA chipset drivers first before installing other drivers such as audio or VGA drivers. The applications will only function correctly if the necessary drivers are already installed.

  • Page 68: Driver Utilities

    Chapter 4 RIVER TILITIES Getting Started The Driver Utilities CD contains the driver utilities and software for enhancing the performance of the mainboard. Note: The driver utilities and software are updated from time to time. The latest updated versions are available at http://www.viaembedded.com./...
  • Page 69 Driver Installation Running the Driver Utilities CD To start using the CD, insert the CD into the CD-ROM or DVD-ROM drive. The CD should run automatically after closing the CD-ROM or DVD-ROM drive. The driver utilities and software menu screen should then appear on the screen.

  • Page 70: Cd Content

    Chapter 4 CD C ONTENT VIA 4in1 Drivers: Contains VIA ATAPI Vendor Support Driver (enables the performance enhancing bus mastering functions on ATA-capable Hard Disk Drives and ensures IDE device compatibility), AGP VxD Driver (provides service routines to your VGA driver and interface directly to hardware, providing fast graphical access), IRQ Routing Miniport Driver (sets the system's PCI IRQ routing sequence) and VIA INF Driver (enables the VIA Power Management function).

  • Page 71: Appendix

    PPENDIX Watchdog Timer Configuration The WDT is used to generate a variety of output signals after a user programmable count. The WDT is suitable for use in the prevention of system lock-up, such as when software becomes trapped in a deadlock.

  • Page 72: Sample Code

    Appendix AMPLE This code and information is provided “as is” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose. #include <stdio.h> #include <dos.h> #include <inlines/pc.h> //Sio area #define SUPERIO_INDEX 0x4e #define SUPERIO_DATA 0x4f...
  • Page 73 Watchdog Timer Configuration value; printf("=========================================== =============================\n"); printf(" Fintek Watchdog testing program Ver:00 2007-2-5\n"); printf("=========================================== =============================\n"); if (detect_sio()) print_err_help(argv); if ((argc<2)||(argc>3)) print_help(argv); printf("the parameter=%s\n", argv[1]); sscanf(argv[1], "%d", &value); printf("you input=%d\n", value); if(value >255) print_help(argv); write_sio_reg(0x08, 0x60, 0x03); //Set Watch Dog timer base address High byte = 03h write_sio_reg(0x08, 0x61, 0x00);...
  • Page 74 Appendix outportb(0x0300, 0x03); //Select unit to one second and clear time out status outportb(0x0301, value); outportb(0x0301, value); //Set timer to value second and enable timer printf("Program %d seconds success\n", value); return; void print_help(char *argv[]) printf("!!! Wrong argument !!!\n"); printf("using: %s nnn\n", argv[0]); printf("...
  • Page 75 Watchdog Timer Configuration //input: none //output: 1 = not correct SuperIO 0 = correct SuperIO int detect_sio(void) //check the SuperIO version if(read_sio_reg(0,CR20_REG)==Fintek_ID) return 0; else return 1; unsigned char read_sio_reg(int bank_no, int reg_no) unsigned char reg_data; enter_sio_config(); outportb(SUPERIO_INDEX, BANK_REG); delay(1); outportb(SUPERIO_DATA, bank_no);...
  • Page 76 Appendix void write_sio_reg(int bank_no, int reg_no, unsigned short write_data) enter_sio_config(); outportb(SUPERIO_INDEX, BANK_REG); delay(1); outportb(SUPERIO_DATA, bank_no); delay(1); outportb(SUPERIO_INDEX, reg_no); delay(1); outportb(SUPERIO_DATA, write_data); exit_sio_config(); void enter_sio_config() outportb(SUPERIO_INDEX, 0x77); delay(1); //delay some time outportb(SUPERIO_INDEX, 0x77); void exit_sio_config() outportb(SUPERIO_INDEX, 0xaa);...

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