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AR-B1893CM6C User’s Guide 

 

AR-B1893CM6C Celeron M inside  

with DDR SO DIMM, 4 Port built in LAN, 1 Mini PCI, 1 CF

 

35

5 

Watchdog Timer 

 

The Watchdog Timer is provided to ensure that standalone systems can 
always recover from catastrophic conditions that cause the CPU to crash. 
This condition may have occurred by external EMI or a software bug. 
When the CPU stops working correctly, hardware on the board will either 
perform a hardware reset (cold boot) or a Non-Maskable Interrupt (NMI) 
to bring the system back to a known state. 
1.  Watch Dog Timer is controlled by CRF5, CRF6, CRF7 of Logical 

Device 8 of Super I/O (W83627HF) 

2.  Timer range 1-255 second / minute 
3.  To test the Watch Dog function, we have developed a program 

(“

9936_WDOG

”) and it run under DOS OS. 

 

Watch Dog Test :  Example WatchDog 25 second 

 

Содержание AR-B1893CM6C

Страница 1: ...AR B1893CM6C User s Guide AR B1893CM6C Celeron M inside On Board VGA with SO DIMM 4 Port built in LAN 1 Mini PCI 1 CF Edition 1 0 Book Number AR B1893CM6C 06 09 25...

Страница 2: ...or documentation even if advised of the possibility of such damages This document contains proprietary information protected by copyright All rights are reserved No part of this manual may be reproduc...

Страница 3: ...at You Have 6 Installation 7 2 1 AR B1893CM6C s Layout 7 2 2 Power Button Setting 9 2 3 CMOS Reset 9 2 4 Jumper description 9 Connection 11 3 1 Ultra ATA33 66 100 IDE Disk Drive Connector 11 3 2 Seria...

Страница 4: ...3 12 Internal Buzzer 19 3 13 Power HD Watchdog LED 19 3 14 Reset Button 19 Award BIOS Setup 21 4 1 Introduction 21 4 2 Starting Setup 21 4 3 Using Setup 22 4 4 Main Menu 23 4 5 Advanced BIOS Features...

Страница 5: ...socket for Compact Flash Disk or IBM Micro Drive Series ports Two high speed 16C550 compatible UARTs ports USB port Support four USB 2 0 compatible ports Watchdog timer Time setting form 1 to 255 seco...

Страница 6: ...n LAN 1 Mini PCI 1 CF 6 1 2 What You Have In addition to this User s Manual the AR B1893CM6C package includes the following items AR B1893CM6C board One IDE Cable VGA cable Keyboard Mouse Adapter Y Ca...

Страница 7: ...2 Installation This chapter describes how to install the AR B1893CM6C At first the layout of AR B1893CM6C is shown and the unpacking information that you should be careful is described The jumpers and...

Страница 8: ...AR B1893CM6C User s Guide AR B1893CM6C Celeron M Inside with DDR SO DIMM 4 Port built in LAN 1 Mini PCI 1 CF 8 Bottom Placement...

Страница 9: ...button cable on CN3 pin 1 2 use Mechanical Power Button CN3 Power Button Connector Pin DESCRIPTION 1 2 Power Button 3 12 V Button LED 4 NC 2 3 CMOS Reset JBAT1 CMOS pin header JBAT1 DESCRIPTION 1 2 No...

Страница 10: ...etting JP1 Description open Normal start CPU Power default close Soft start CPU Power JRS2 COM2 for RS 232 RS 422 RS 485 JRS2 Description 1 2 RS 232 default 3 4 RS 422 5 6 RS 485 J2 Bypass setting J2...

Страница 11: ...d disk drives to the AR B1893CM6C IDE controller IDE 1 Primary IDE Connector 40 Pins PIN NO DESCRIPTION PIN NO DESCRIPTION 1 RESET 2 GROUND 3 DATA 7 4 DATA 8 5 DATA 6 6 DATA 9 7 DATA 5 8 DATA 10 9 DAT...

Страница 12: ...A 1 16 DATA 14 17 DATA 0 18 DATA 15 19 GROUND 20 N C 21 N C 22 GROUND 23 IOW 24 GROUND 25 IOR 26 GROUND 27 N C 28 BALE DEFAULT 29 N C 30 GROUND DEFAULT 31 INTERRUPT 32 IOCS16 DEFAULT 33 SA1 34 N C 35...

Страница 13: ...n Connector PIN NO DESCRIPTION 1 DATA CARRIER DETECT DCD 2 DATA SET READY DSR 3 RECEIVE DATA RXD 4 REQUEST TO SEND RTS 5 TRANSMIT DATA TXD 6 CLEAR TO SEND CTS 7 DATA TERMINAL READY DTR 8 RING INDICATO...

Страница 14: ...ni DIN Keyboard Mouse Connector PIN NO DESCRIPTION 1 MOUSE DATA 2 KEYBOARD DATA 3 GROUND 4 5V 5 MOUSE CLOCK 6 KEYBOARD CLOCK 3 4 USB Port Connector The AR B1893CM6C provides four USB port port 0 port...

Страница 15: ...uper I O Chip CPUF1 CPUF2 CPUF3 Fan Connector for CPU System PIN NO DESCRIPTION 1 Sense 2 12 V 3 Ground 3 6 LAN RJ45 Connector AR B1893CM6C is equipped with built in 4 x 10 100Mbps Ethernet Controller...

Страница 16: ...D DESCRIPTION 1 For LAN 1 2 For LAN 2 3 For LAN 3 4 For LAN 4 VGA1 10 pin Connector PIN NO DESCRIPTION 1 RED R 2 GROUND 3 GREEN G 4 GROUND 5 BLUE B 6 GROUND 7 VERTICAL SYNCHRON VS 8 CLOCK CLK 9 HORIZO...

Страница 17: ...D3 27 D11 3 D4 28 D12 4 D5 29 D13 5 D6 30 D14 6 D7 31 D15 7 CS1 32 CS3 8 N C 33 N C 9 GROUND 34 IOR 10 N C 35 IOW 11 N C 36 PULL HIGH 12 N C 37 IRQ15 13 VCC 38 VCC 14 N C 39 MASTER SLAVE 15 N C 40 N C...

Страница 18: ...User s Guide AR B1893CM6C Celeron M Inside with DDR SO DIMM 4 Port built in LAN 1 Mini PCI 1 CF 18 3 8 PCI Slot PCI1 3 9 Mini PCI Slot MPCI1 3 10 DDR SODIMM Socket SODIMM1 1 123 124 2 B62 A6 2 A1 B1...

Страница 19: ...11 GPIO CN2 PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GPIO1 6 GPIO7 2 GPIO5 7 GPIO4 3 GPIO2 8 GPIO8 4 GPIO6 9 GROUND 5 GPIO3 10 VCC 3 12 Internal Buzzer BZ1 3 13 Power HD Watchdog LED LED5 COLOR DESCRI...

Страница 20: ...AR B1893CM6C User s Guide AR B1893CM6C Celeron M Inside with DDR SO DIMM 4 Port built in LAN 1 Mini PCI 1 CF 20...

Страница 21: ...program can be activated in one of two ways 1 By pressing Del immediately after switching the system on or 2 By pressing the Del key when the following message appears briefly at the bottom of the sc...

Страница 22: ...Move to the item on the right menu bar Esc Main Menu Quit without saving changes Submenus Exit Current page to the next higher level menu Move Enter Move to the item you desired PgUp key Increase the...

Страница 23: ...em and then use the PgUp or PgDn keys to select the value you want in each item Date mm dd yy Sun Jan 5 2003 Time hh mm ss 2 53 40 IDE Primary Master None IDE Primary Slave None IDE Secondary Master N...

Страница 24: ...menu described in Table 3 Press Enter to enter the sub menu of detailed options Drive A Drive B None 360K 5 25 in 1 2M 5 25 in 1 720K 3 5 in 1 44K 3 5 in 2 88K 3 5 in Select what kind of floppy type y...

Страница 25: ...gure 2 IDE Primary Master sub menu Use the legend keys to navigate through this menu and exit to the main menu Use Table 2 to configure the hard disk Item Options Description IDE HDD Auto detection Pr...

Страница 26: ...s hard disk Table 2 Hard disk selections 4 5 Advanced BIOS Features This section allows you to configure your system for basic operation Quick Power On Self Test Enabled Full Screen LOGO Show Disable...

Страница 27: ...is item allows use Advanced Programmable Interrupt Controller feature The Choice Enabled Disabled Console Redirection The BIOS redirects console output to COM 1 by default 9600 8N1 no handshake until...

Страница 28: ...EFP TV CRT EFP CRT TV On Chip Frame Buffer Size This item allows you to Choose the Frame Buffer size for Display The Choice 1MB 4MB 8MB 16MB 32MB ACPI Function This item allows you to enable or disabl...

Страница 29: ...em such as Windows 95 If you set this field to manual choose specific resources by going into each of the sub menu that follows this field a sub menu is preceded by a The choice Auto ESCD Manual IRQ R...

Страница 30: ...B Controller Enabled USB 2 0 Controller Enable Figure 5 Peripheral menu Onboard Serial Port 1 Port 2 Select an address and corresponding interrupt for the first and second serial ports The choice 3F8...

Страница 31: ...nly The Bios itself may may not have high speed USB support If the Bios has high speed USB support built in the support will be automatically turn on when high speed device were attached The Choice En...

Страница 32: ...t when temperature reach the trigger level The Choice Disabled 60 C 140 F 65 C 149 F 70 C 158 F 75 C 167 F 4 9 Boot First Boot Device CDROM Second Boot Device Hard Disk Third Boot Device USB FDD Boot...

Страница 33: ...electing Save Exit Setup Load Optimized Defaults Exit Without Saving Load Fail Save Default Figure 8 Exit menu Save Exit Setup Pressing Enter on this item asks for confirmation Save to CMOS and EXIT Y...

Страница 34: ...Y loads the default values that are factory settings for optimal performance system operations Exit Without Saving Pressing Enter on this item asks for confirmation Quit without saving Y N Y This allo...

Страница 35: ...ave occurred by external EMI or a software bug When the CPU stops working correctly hardware on the board will either perform a hardware reset cold boot or a Non Maskable Interrupt NMI to bring the sy...

Страница 36: ...ig_port 0x2E const byte config_data 0x2F Global values static int time_unit 0 0 second 1 minute static int time_out 3 function reference void get_wdog_time char timestr void prepare_superio void close...

Страница 37: ...tion n won t be displayed close_superio get time_unit and time_out from user input void get_wdog_time char timestr int tmp tmp strlen timestr if timestr tmp m timestr tmp M time_unit 1 timestr tmp 0 t...

Страница 38: ..._port 0xF5 Choose watchdog time unit outportb config_data tmp outportb config_port 0xF6 Set watchdog time out outportb config_data time_out void close_superio outportb config_port 0xAA void print_help...

Страница 39: ...CI 1 CF 39 6 GPIO AR M9942 GPIO are controlled by Register F1h and F0h of Super I O IC W83627HF For details please refer the datasheet of W83627HF GPIO can be only set as all inputs or all outputs To...

Страница 40: ...Mini PCI 1 CF 40 6 1 GPIO Test program source codes Watchdog test program for AR M9942 include stdio h include string h include stdlib h include conio h include dos h typedef unsigned char byte const...

Страница 41: ...if strcmp argv 1 h 0 print_help_message exit 0 get_wdog_time argv 1 prepare_superio turn on watchdog if time_unit 0 waiting_sec time_out else waiting_sec time_out 60 x wherex y wherey while waiting_se...

Страница 42: ...Choose LD8 Watchdog outportb config_data 0x08 outportb config_port 0x30 Activate LD8 outportb config_data 0x01 if time_unit 1 tmp 0x08 else tmp 0x00 outportb config_port 0xF5 Choose watchdog time unit...

Страница 43: ...AR B1893CM6C User s Guide AR B1893CM6C Celeron M Inside with DDR SO DIMM 4 Port built in LAN 1 Mini PCI 1 CF 42 printf twdog 200m t computer will reboot in 200 minutes n...

Страница 44: ...4e4 and SID 8401 will be programmed into eeprom You can change to other values if nevessary 3 0 sromutil b 0 Disable PXE function on NIC if PXE binary image is being integrated into BIOS 4 0 sromutil...

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