EMAC SBC-675 User Manual Download Page 106

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Appendix A Programming the Watchdog Timer 95

Programming the

Watchdog Timer

The mainboard is equipped with a
watchdog timer that resets the CPU or
generates an interrupt if processing comes
to a standstill for whatever reason. This
feature ensures system reliability in
industrial stand-alone and unmanned
environments.

APPENDIX

Summary of Contents for SBC-675

Page 1: ...SBC 675 Celeron CPU Card with LCD Ethernet High Drive SSD...

Page 2: ......

Page 3: ...ices Inc AMI is a trademark of American Megatrends Inc Award is a trademark of Award Software International Inc Cyrix is a trademark of Cyrix Corporation IBM PC AT PS 2 and VGA are trademarks of Inter...

Page 4: ...products So if you run into technical difficulties we are here to help For the most frequently asked questions you can easily find answers in your product documentation These answers are normally a lo...

Page 5: ...ight Please consult your dealer for more details If you think you have a defective product follow these steps 1 Collect all the information about the problem encountered For example CPU type and speed...

Page 6: ...anual this manual in PDF file Ethernet drivers and utilities VGA drivers and utilities BIOSfiles 1 Hard disk drive IDE interface cable 1 Floppy disk drive interface cable 1 6 pin mini DIN dual outlet...

Page 7: ...se read it thoroughl y before you install and use the board The product that you have purchased comes with an two year limited warranty but will not be responsible for misuse of the product Therefore...

Page 8: ...Memory 17 Supplementary information about DIMM 17 Memory Installation Precedures 17 Cache Memory 18 LCD driving voltage select J1 19 Clear CMOS J5 19 CPU frequency ratio select J4 20 Celeron CPU jump...

Page 9: ...ctors CN12 CN10 34 VGA display connector CN12 34 LCD display connector CN10 35 100Base Tx Ethernet connector CN13 36 Serial ports CN16 CN14 36 COM2 RS 232 422 485 serial ports CN14 36 Keyboard and PS...

Page 10: ...79 Software drives 80 Hardware configuration 80 Necessary prerequisites 81 Before you begin 81 Windows 95 82 Driver installation 82 Windows 3 51 90 Driver installation 90 Windows NT 4 0 91 Driver ins...

Page 11: ......

Page 12: ...Chapter 1 General Information 1 1 General Information This chapter gives background informa tion on the mainboard Sections include Board specifications Layout and dimensions C H A P T E R...

Page 13: ...mode Up to four IDE devices can be connected including large hard disks CD ROM drives and tape backup drives etc The SBC 675 also features power management to minimize power consumption It complies w...

Page 14: ...Supports Intel Celeron CPUs up to 466MHz Supports DiskOnChip SSD up to 144MB C T 69000 LCD controller supports 36 bit TFT Panels 100Base Tx Fast Ethernet Supports H W status monitoring High Drive des...

Page 15: ...Supports Ultra DMA 33 mode with data transfer rate 33MB Sec FDD interface Supports up to two floppy disk drives 5 25 360KB and 1 2MB and or 3 5 720KB 1 44MB and 2 88MB Parallel port One bi directional...

Page 16: ...ond W83781D H W status monitoring IC supports power supply voltages fan speed and temperatures monitor ing Flat Panel CRT Interface Chipset C T69000 Displaymemory Built in2MBSDRAM Display type Support...

Page 17: ...al Mechanical and environmental Powersupplyvoltage 5V 4 75Vto5 25V 12V 11 4V to 12 6V Typicalpowerrequirement 5V 4A Operating temperature 32 to 140o F 0 to 60o C Boardsize 13 3 L x4 8 W 338mmx122mm We...

Page 18: ...Chapter 1 General Information 7 Board layout...

Page 19: ...8 SBC 675 User Manual Board dimensions...

Page 20: ...pter describes how to set up the main board hardware including instruc tions on setting jumpers and connecting peripherals switches and indicators Be sure to read all the safety precautions before you...

Page 21: ...a number of jumpers that allow you to configure your system to suit your application The following tables list the function of each of the board s jumpers and connectors Jumpers Label Function J1 LCD...

Page 22: ...aker CN8 IDE hard drive connector Secondary CN9 Parallel port connector CN10 LCD display connector CN11 IrDA connector CN12 VGA display connector CN13 100Base Tx Ethernet connector CN14 COM2 RS 232 42...

Page 23: ...12 SBC 675 User Manual Locating jumpers J1 J4 J5 J9 J8 J7 J6...

Page 24: ...Chapter 2 Installation 13 Locating connectors CN11 U15 CN2 CN13 PWR1 CN15 CN18 CN16 CN14 CN9 CN10 CN3 CN6 CN8 CN12 CN1 CN4 CN17 CN5 CN7...

Page 25: ...ns with the clip To open a jumper you remove the clip Sometimes a jumper will have three pins labeled 1 2 and 3 In this case you would connect either pins 1 and 2 or 2 and 3 The jumper settings are sc...

Page 26: ...static electric charges Use a grounding wrist strap at all times Place all electronic components on a static dissipative surface or in a static shielded bag when they are not in the chassis Instala a...

Page 27: ...normal and won t damage the CPU When the CPU is installed the lever should snap into place at the side of the socket Note To remove a CPU pull the lever out to the side a little and raise it as far as...

Page 28: ...00MHz FSB CPU is used The SBC 675 can only accept PC 100 SDRAM DIMM Module Single sided modules are typically 16 or 64 MB double sided modules are usually 32 or 128 MB Memory Installation Procedures T...

Page 29: ...as been embedded into the Celeron CPU you do not have to take care of either SRAM chips or SRAM modules The built in second level cache in the Celeron yields much higher performance than the external...

Page 30: ...etting J1 The configurations are as follows LCD driving voltage select J1 5V 3 3V default 1 2 3 1 2 3 Clear CMOS J5 You can use J5 to clear the CMOS data if necessary To reset the CMOS data set J5 to...

Page 31: ...t J4 CPU core frequency CPU frequency ratio 2 5 5 External bus clock 66 or 100 MHz CPU frequency ratio select J4 2x 2 5x 3x 3 5x 4x 4 5x 5x 5 5x default 1 3 5 2 4 6 1 3 5 2 4 6 1 3 5 2 4 6 1 3 5 2 4 6...

Page 32: ...Hz 366MHz 1 3 5 2 4 6 Note Most Celeron CPUs frequency ratio are pre locked within the CPUs These CPUs run at fixed speed frequency regardless of the configurations listed above If the CPU you are usi...

Page 33: ...ilable option LCD clock signal select J6 SFCLK SHCLK default 1 2 3 1 2 3 COM2 RS 232 422 485 select J7 J8 The SBC 675 COM2 serial port can be selected as RS 232 RS 422 or RS 485 by setting J7 J8 COM2...

Page 34: ...does not conflict with any other device s memory address J9 controls the memory address of the Flash disk DiskOnChip 2000 memory address J9 Memory address HEX DISABLE DC00 D400 D800 default These addr...

Page 35: ...re you plug in the right direction AT power connector PWR1 Pin Signal 1 N C 2 5V 3 12V 4 12V 5 GND 6 GND 7 GND 8 GND 9 5V 10 5V 11 5V 12 5V CPU fan power connector CN17 Plug in the fan cable to the 3...

Page 36: ...power and Pin3 is the ground You can use a switch or a lock to disable the keyboard so the PC will not respond to any input This is useful if you do not want anyone to change or stop a running progra...

Page 37: ...red or blue and the other wires are usually gray 1 Connect one end of the cable to CN2 or CN8 Make sure that the red or blue wire corresponds to pin 1 on the connector which is labeled on the board o...

Page 38: ...6 DATA 9 7 DATA 5 8 DATA 10 9 DATA 4 10 DATA 11 11 DATA 3 12 DATA 12 13 DATA 2 14 DATA 13 15 DATA 1 16 DATA 14 17 DATA 0 18 DATA 15 19 SIGNAL GND 20 N C 21 N C 22 GND 23 IO WRITE 24 GND 25 IO READ 26...

Page 39: ...Make sure that the red or blue wire corresponds to pin 1 on the connector 2 Attach the appropriate connector on the other end of the cable to the floppy drive s You can use only one connector in the...

Page 40: ...ELECT 3 GND 4 N C 5 GND 6 DRIVE TYPE 7 GND 8 INDEX 9 GND 10 MOTOR 0 11 GND 12 DRIVE SELECT 1 13 GND 14 DRIVE SELECT 2 15 GND 16 MOTOR 1 17 GND 18 DIRECTION 19 GND 20 STEP 21 GND 22 WRITE DATA 23 GND 2...

Page 41: ...arts your computer as if you had turned off the power then turned it back on USB connector CN6 The SBC 675 provides two USB Universal Serial Bus interfaces which give complete plug and play hot attach...

Page 42: ...ct to the external speaker on your computer chassis Pin assignments for CN7 are shown below External speaker CN7 Pin Function 1 Vcc For external speaker use 2 Speaker For external speaker use 3 Intern...

Page 43: ...e has a 26 pin connector on one end and a DB 25 connector on the other Parallel port IRQ The mainbaord supports one parallel port The port is designated as LPT1 and can be disabled or changed to LPT2...

Page 44: ...nnection user can transfer files to or from laptops notebooks PDA and printers This connector supports HPSIR 115 2Kbps 2 meters ASK IR 56Kbps and Fast IR 4Mbps 2 meters Install infrared module onto Ir...

Page 45: ...D and active LCD displays The board has two connectors to support these displays one for standard CRT VGA monitors and one for flat panel displays VGA display connector CN12 VGA display connector CN12...

Page 46: ...one completely via the software utility You do not have to set any jumpers LCD display connector CN10 Pin Signal Pin Signal 1 12 VDC 2 12 VDC 3 GND 4 GND 5 5 VDC 6 5 VDC 7 ENAVEE 8 GND 9 P0 10 P1 11 P...

Page 47: ...way auto negotiation operation Serial ports CN16 CN14 The SBC 675 offers two serial ports one RS 232 CN16 and one RS 232 422 485 CN14 These ports allow you to connect them to serial devices mouse prin...

Page 48: ...ring power on self test POST after a reset if the keyboard is not present The main board BIOS Advanced setup menu allows you to select Present or Absent under the System Keyboard section This allows n...

Page 49: ...2MB up to 144MB unformatted In order to manage the disk the DiskOnChip 2000 includes the TrueFFS M Systems Flash File System proprietary software The DiskOnChip 2000 package is pin to pin compatible...

Page 50: ...with thememorywindow Youshoulddisablethememoryshadowfrom the BIOS SETUP if the DOC cannot be accessed Configure DOC as a boot device To configure a DOC as a boot drive you should copy the operating sy...

Page 51: ...40 SBC 675 User Manual...

Page 52: ...Chapter 3 Award BIOS Setup 41 3 Award BIOS Setup This chapter describes how to configure the BIOS for the system C H A P T E R...

Page 53: ...ng POST you can start the Setup program in one of two ways 1 By pressing Del immediately after switching the system on or 2 By pressing Del or pressing Ctrl Alt Esc when the following message appears...

Page 54: ...ic value or make changes PgDn Decrease the numeric value or make changes F1 General help only for Status Page Setup Menu and Option Page Setup Menu F2 Change color from total 16 colors F2 to select co...

Page 55: ...resets your system to its default configuration You can invoke this override by immediately pressing Insert when you restart your computer You can restart by either using the ON OFF switch the RESET b...

Page 56: ...andard and PCI Local Bus Configuration configuration options Integrated I O subsystems that depend on the inte Peripherals grated peripherals controller in your system Supervisor User Change set or di...

Page 57: ...efaults most stable minimal performance system operations Load Setup Setup defaults are factory settings for Defaults optimal performance system operations Save Exit Save settings in nonvolatile CMOS...

Page 58: ...Chapter 3 Award BIOS Setup 47 Standard CMOS setup When you choose the STANDARD CMOS SETUP option from the INITIAL SETUP SCREEN menu the screen below is displayed...

Page 59: ...the 24 hour military time clock For example 1 p m is 13 00 00 Press the left or right arrow key to move to the desired field Press the PgUp or PgDn key to increment the setting or type the desired val...

Page 60: ...ads write precompensation factor landing zone and number of sectors Drives whose specifications do not accommodate any pre defined type are classified as type USER Size Disk drive capacity approximate...

Page 61: ...in the computer None No diskette drive installed 360K 5 25 in 5 1 4 inch PC type standard drive 360 kilobyte capacity 1 2M 5 25 in 5 1 4 inch AT type high density drive 1 2 megabyte capacity 720K 3 5...

Page 62: ...S 2 1 M L N T S D 0 0 6 x 0 0 8 C E N 0 1 3 3 C A 8 4 4 6 L N s t i b 2 1 T F T 0 8 4 x 0 4 6 a b i h s o T A 9 0 2 C 0 1 M T L T F T s t i b 8 1 0 8 4 x 0 4 6 C E N 4 0 6 2 C A 0 6 0 8 L N T F T 0 0...

Page 63: ...ll But Disk Key POST does not stop for a keyboard or disk error but stops for all other errors Memory You cannot change any values in the Memory fields they are only for your information The fields sh...

Page 64: ...and their software can use extended memory OtherMemory Between 640 KB and 1 MB often called High memory DOS may load terminate and stay resident TSR programs such as device drivers in this area to fr...

Page 65: ...54 SBC 675 User Manual BIOS features setup By choosing the BIOS FEATURES SETUP option from the INITIAL SETUP SCREEN menu the screen below is displayed...

Page 66: ...l Cache Cache memory is additional memory that is much faster than conventional DRAM system memory CPUs from 486 type and up contain internal cache memory and most but not all modern PCs have addition...

Page 67: ...drives with 720 KB 1 2 MB and 1 44 MB capacity all have 80 tracks Because very few modern PCs have 40 track floppy drives we recommend that you set this field to Disabled to save time Boot Up NumLock...

Page 68: ...X bus Shadowing improves the performance of the system BIOS and similar ROM firmware for expansion peripherals but it also reduces the amount of high memory 640 KB to 1 MB avail able for loading devi...

Page 69: ...58 SBC 675 User Manual CHIPSET features setup By choosing the CHIPSET FEATURES SETUP option from the INITIAL SETUP SCREEN menu the screen below is displayed...

Page 70: ...eing lost while using your system Because of the complexity and technical nature of some of the options not all of the options are described here SDRAM RAS to CAS Delay This field lets you control the...

Page 71: ...ting Enabled allows caching of the video BIOS ROM at C0000h to C7FFFh resulting in better video performance However if any program writes to this memory area a system error may result Video RAM Cachea...

Page 72: ...to support delay transactions cycles Select Enabled to support compliance with PCI specification version 2 1 Auto Detect DIMM PCI Clk When the Auto Detect DIMM PCI clk enable the Utility will automat...

Page 73: ...62 SBC 675 User Manual Power management setup By choosing the POWER MANAGEMENT option from the INITIAL SETUP SCREEN menu the screen below is displayed...

Page 74: ...r saving for Doze Standby and Suspend modes This table describes each power management mode Max Saving Maximum power savings Only Available for SL CPUs Inactivity period is 1 minute in each mode User...

Page 75: ...rds Association VESA Use the software supplied for your video subsystem to select video power management values Blank Screen System only writes blanks to the video buffer Video Off After As the system...

Page 76: ...causing other system devices to enter power management modes HDD Power Down After the selected period of drive inactivity any system IDE devices compatible with the ATA 2 specification or later power...

Page 77: ...bal Timer Events When Enabled an event occurring on each device listed below restarts the global timer for Standby mode IRQ3 7 9 15 NMI Primary IDE 0 Primary IDE 1 Secondary IDE 0 Secondary IDE 1 Flop...

Page 78: ...Chapter 3 Award BIOS Setup 67 PNP PCI configuration setup By choosing the PNP PCI CONFIGURATION SETUP option from the initial SETUP SCREEN menu the screen below is displayed...

Page 79: ...s disappear as the BIOS automatically assigns them Reset Configuration Data Normally you leave this field Disabled Select Enabled to reset Extended System Configuration Data ESCD when you exit Setup i...

Page 80: ...es compliant with the Plug and Play standard whether designed for PCI or ISA bus architecture Assign IRQ for VGA If you are not using your system s VGA controller select Disabled to free the IRQ resou...

Page 81: ...he BIOS DEFAULTS provides the most stable settings though they do not provide optimal performance LOAD SETUP DEFAULTS on the other hand provides for maximum system performance If the stored record cre...

Page 82: ...Chapter 3 Award BIOS Setup 71 Integrated peripherals setup By choosing the INTEGRATD PERIPHERALS option from the initial SETUP SCREEN menu the screen below is displayed...

Page 83: ...ansfer protocol that utilizes ATA commands and the ATA bus to allow DMA commands to transfer data at a maximum burst rate of 33 MB s When you select Auto in the four IDE UDMA fields for each of up to...

Page 84: ...or the system has no floppy drive select Disabled in this field Onboard Serial Ports 1 2 Select a logical COM port address for the first and second serial ports RxD TxD Active Consult your IR periphe...

Page 85: ...ther SUPERVISOR or USER PASSWORD or both of them The difference between the two is that the supervisor password allows unrestricted access to enter and change the options of the setup menus while the...

Page 86: ...ow the message changes CONFIRM PASSWORD Again type the password and press Enter To abort the process at any time press Esc In the Security Option item in the BIOS Features Setup screen select System o...

Page 87: ...n The IDE HDD AUTO DETECTION utility can automatically detect the IDE hard disk installed in your system You can use it to self detect and or correct the hard disk type configuration You need to repea...

Page 88: ...press ENTER the values entered in the setup utility will be recorded in the chipset s CMOS memory The microprocessor will check this every time you turn your system on and compare this to what it find...

Page 89: ...78 SBC 675 User Manual...

Page 90: ...Chapter 4 Driver Installation 79 4 Flat Panel CRT Controller Display Drivers and Utilities This chapter provides information about Driver types and installation C H A P T E R...

Page 91: ...require any special drivers to operate in standard modes The purpose of the enclosed software drivers is to take advantage of the extended features of the CHIPS VGA Flat Panel CRT controller Hardware...

Page 92: ...isk Understand the MS DOS directory structure If you are uncertain about any of these concepts please refer to the DOS or OS 2 user reference guides for more information before you proceed with the in...

Page 93: ...these drivers through the Windows operating system Driver installation 1 Install Windows 95 as you normally would for a VGA display Click the Start button go to Settings and click on Control Panel Ch...

Page 94: ...Chapter 4 Driver Installation 83 Click the setting buttom then click the Advanced Properties icon into the Advanced Display properties windows show as figure2 figure 2...

Page 95: ...Manual click on Change Display Type In the Change Display Type window click on the Change button under Adapter Type into the select Device window show as figure 3 This will bring up the Select Device...

Page 96: ...Device window click on Have Disk Select Browse and find the Win95 driver chips95 inf in the Supporting CD ROM with the following path and then click OK cd rom CD ROM model name driver vga driver win95...

Page 97: ...6 SBC 675 User Manual The name of the Chips And Techn 69000 PCI driver will appear highlighted in the Models list boxfhow as figure Click OK to start the driver installation show as figure 6 figure 6...

Page 98: ...Chapter 4 Driver Installation 87 3 Once the installation is complete the Advanced display Proper ties window will reappear Show as figure 7 figure 7...

Page 99: ...8 8 SBC 675 User Manual Click on close to close the window Then the Display Properties window will reappear Show as figure 8 figure 8...

Page 100: ...Chapter 4 Driver Installation 89 Click on Apply Restart the system for the new settings to take effect show as figure 9 figure 9...

Page 101: ...ck the Display Type buttom into the Display Type windows then click on Change buttom from the Adapter Type icon And click on Have Disk buttom in the change display window 2 Place the Supporting CD ROM...

Page 102: ...ur CD ROM dirve In the Select Device window click on Have Disk select Browse and find the NT 4 0 driver from cd rom CD ROM model name dirver vga driver win98 nt windows nt nt40 Oemsetup inf cd rom the...

Page 103: ...9 2 SBC 675 User Manual...

Page 104: ...Chapter 5 Software Configuration 93 5 Ethernet Software Configuration This chapter describes how to configure the Etherent Card to match your applica tion requirements C H A P T E R...

Page 105: ...he Ethernet interface Just highlight the option you wish to change by using the Up and DOWN keys To change a selected item press ENTER and a screen will appear with the available options Highlight you...

Page 106: ...dog Timer The mainboard is equipped with a watchdog timer that resets the CPU or generates an interrupt if processing comes to a standstill for whatever reason This feature ensures system reliability...

Page 107: ...ds 2 To set the time out event output data to prot 0x444 0 reset system 1 2 3 IRQ 10 15 11 respectively 4 NMI e g outportb 0x444 0 set time out event to reset system 3 To disable watchdog timer output...

Page 108: ...out interval to 10 seconds customer_job execute your job here be sure your job will finished within 10 seconds outportb 0x443 0 refresh watchdog timer otherwise the system will reset after time out ou...

Page 109: ...98 SBC 675 User Manual...

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