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附录 

EC4-1812CLDNA 

- 23 - 

附录 

Watchdog 编程指引 

本主板提供一个可按分或按秒计时的，最长达255级的可编程看门狗定时器 

(以下简称WDT)。通过编程，WDT超时事件可用来将系统复位或者产生一个可屏蔽 

中断。

本主板可使用的中断号为：3，4，5，7，9，10，11。使用前请把BIOS Setup 

界面PCIPnP组中对应的IRQ号选项值改成Reserved。 

以下用C语言形式提供了WDT的编程范例，对WDT的编程需遵循以下步骤： 

Ø

　　进入WDT编程模式 

Ø

　　设置WDT工作方式/启动WDT/关闭WDT

 

(1) 

进入WDT编程模式。 

#define  INDEX_PORT 

0x4E 

#define  DATA_PORT 

0x4F 

unsigned  int tmp_reg; 

unsigned int pm_base; 

outportb(INDEX_PORT, 0x55); 

outportb(INDEX_PORT, 0x07); 

outportb(DATA_PORT, 0x0A); 

outportb(INDEX_PORT, 0x30); 

outportb(DATA_PORT, 0x01); 

outportb(INDEX_PORT, 0x60); 

tmp_reg = inportb(DATA_PORT);

Содержание EC4-1812CLDNA

Страница 1: ...EC4 1812CLDNA EPIC Single Board Computer with CPU Memory VGA LVDS USB COM SATA LAN Audio Version A1...

Страница 2: ...structions 1 Before handling your product read the user s manual carefully 2 Any board or card not ready to be installed shall be kept in the anti static packaging 3 Before taking board or card from a...

Страница 3: ...System Memory 2 Video Function 2 Network Function 2 Audio Function 3 CF Card 3 SATA Function 3 Power Feature 3 Expansion Bus 3 I O Functions 3 Watchdog Function 3 Chapter 2 Installation 4 Product Outl...

Страница 4: ...o Interface 12 Multifunction Interface 12 Digital I O Interface 13 SATA Interface 13 CF Card 14 MiniPCI E Interface 15 Chapter 3 BIOS Setup 16 Advanced 17 Chipset 22 PCIPnP 23 Appendix 24 Watchdog Pro...

Страница 5: ...rt VGA and LVDS dual display function Provide six USB2 0 high speed interfaces Provide one 10 100 1000Mbps Ethernet controller Provide one HDA audio interface Provide two SATA hard disk interfaces and...

Страница 6: ...00mm Power Consumption CPU on board Intel Atom 1 6G Memory on board 1G or 512M DDR2 533MHz l 5V 2 8A 5 3 Microprocessor ATOM N270 CPU Chipsets Intel 945GSE Intel ICH7 M System Memory 512MB or 1GB DDR2...

Страница 7: ...ace to supply power for SATA hard disk only 2 5 SATA hard disk is supported when using external power both 2 5 hard disk and 3 5 hard disk are supported Power Feature Single 5V power supply Expansion...

Страница 8: ...Chapter 2 Installation 4 EC4 1812CLDNA Chapter 2 Installation Product Outline 154 84 165 00 104 85 5 08 5 08 115 00 Unit mm...

Страница 9: ...M6 COM5 JCF1 SATA1 SATA2 CF1 Tip How to identify the first pin of the jumpers and interfaces 1 Observe the letter beside the socket it would be marked with 1 or thickened lines or triangular symbols 2...

Страница 10: ...o clear the contents of CMOS to restore the default value of the system parameters and re start the system Setup Function 1 2 Open Normal Default JCC1 1 2 Short Clear the contents of CMOS all BIOS set...

Страница 11: ...hort 3 3V Default JLCD1 2 3 Short 5V Interface for Power Hard Disk Wireless Network Card Indicators Pin Signal Name Pin Signal Name 1 FP_IDE_LED 2 FP_IDE_LED 3 POWER_LED 4 POWER_LED LED2 5 WLAN_LED 6...

Страница 12: ...n Signal Name 1 5V 2 5V 3 USB1_Data 4 USB2_Data 5 USB1_Data 6 USB2_Data 7 GND 8 GND USB1 USB2 USB3 9 NA 10 GND_CHASSIS Serial Port 1 COM1 COM2 COM3 COM4 RS 232 COM1 COM2 COM3 and COM4 are 2 5Pin 2 0mm...

Страница 13: ...COM6_ TXD COM8_ TXD 3 COM5_ RXD COM7_ RXD 4 COM6_ RXD COM8_ RXD COM5 COM6 5 GND 6 GND Video Interface 1 VGA Display Interface VGA1 is 2 5Pin 2 0mm device pin the transfer cable is required to connect...

Страница 14: ...LVDS0_CLK 15 GND 16 GND 17 NC 18 NC LVDS1 19 VDD 20 VDD Pin definitions of LVDS2 Pin Signal Name Pin Signal Name 1 LVDSE_D0 2 LVDSE_D0 3 GND 4 GND 5 LVDSE_D1 6 LVDSE_D1 7 GND 8 GND 9 LVDSE_D2 10 LVDSE...

Страница 15: ...GND 10 GND 11 LINK_LED 12 LINK_LED LAN1 13 ACT_LED 14 ACT_LED When use the transfer cable to connect the interface signals to the standard socket of RJ45 interface Please refer to the status descript...

Страница 16: ...erface J1 is a 2 5Pin 2 0mm device pin it is a multi function interface and used to connect with keyboard mouse buzzer and RESET the transfer cable is required to connect the interface signals to the...

Страница 17: ...definitions of the interface A1 A7 are interfaces for SATA data cables while B1 B15 are SATA power interfaces Pin Signal Name Pin Signal Name A1 GND B5 GND A2 TX B6 GND A3 TX B7 5VL A4 GND B8 5V A5 RX...

Страница 18: ...rt in one direction marked as CF1 on the back of board Pin Signal Name Pin Signal Name 1 GND 26 NC 2 D3 27 D11 3 D4 28 D12 4 D5 29 D13 5 D6 30 D14 6 D7 31 D15 7 CS0 32 CS1 8 GND 33 NC 9 GND 34 IOR 10...

Страница 19: ...REQ 8 RESERVED_SIM4 9 GND 10 RESERVED_SIM3 11 REFCLK 12 RESERVED_SIM2 13 REFCLK 14 RESERVED_SIM1 15 GND 16 RESERVED_SIM0 17 RESERVED0 18 GND 19 RESERVED1 20 RESERVED_DISABLE 21 GND 22 PERST 23 PETN0 2...

Страница 20: ...ons below When starting up the SETUP program you may see the main interface of CMOS Setup Utility as follows BIOS SETUP UTILITY System Overview Processor Genuine Intel R CPU 2 40GHz Speed 2400MHz Core...

Страница 21: ...o to Sub Screen Tab Select Field F1 General Help F10 Save and Exit ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc 1 CPU Configuration BIOS SETUP UTILITY Configure advanced CPU settings...

Страница 22: ...ted Third IDE Master Not Detected Third IDE Slave Not Detected Fourth IDE Master Not Detected Fourth IDE Slave Not Detected Select Screen Select Item Change Field Tab Select Field F1 General Help F10...

Страница 23: ...E8 Serial Port4 IRQ IRQ3 Uart IRQ Attribute Level Active Low Serial Port5 Address 220 Serial Port5 IRQ 10 Serial Port6 Address 228 Serial Port6 IRQ 10 Serial Port7 Address 230 Serial Port7 IRQ 10 Seri...

Страница 24: ...ve High IRQ mode option under Linux system 4 Hardware Health Configuration BIOS SETUP UTILITY Hardware Health Configuration CPU Temperature 34 93 System Temperature 34 93 Vcore 1 148 V V1 50 1 437 V V...

Страница 25: ...TC Alarm This option is used to enable or disable system clock When the specified time is up it will wake the system from power saving even power off mode this function requires support from ATX power...

Страница 26: ...on NorthBridge Configuration DRAM Frequency Auto Configure DRAM Timing by SPD Enabled Boot Display Device CRT LVDS Flat Panel Type 800 600 SouthBridge Configuration Audio Controller Enabled PCIE port...

Страница 27: ...PCI PnP Settings WARNING Setting wrong values in below sections may cause system to malfunction IRQ3 Available IRQ4 Available IRQ5 Available IRQ7 Available IRQ9 Available IRQ10 Available IRQ11 Availa...

Страница 28: ...ange the value of the corresponding IRQ number in PCIPnP of BIOS Setup interface into Reserved before using The following describes WDT program in C language The steps to program WDT are as follows En...

Страница 29: ...tb pm_base 0x47 0x0C b Interrupt Operating Mode unsigned int irq irq IRQ_NO Please use the interrupt number need to be used to replace the constant IRQ_NO and evaluate the variable irq The former part...

Страница 30: ...d registers in use describe SMBUS I O space base address BAR 0x400 First PCA9534 address slave_adr 0x20 the high 7 bit of the 8 bit address bit 7 1 is the hardware setup address 0x20 while the last bi...

Страница 31: ...status register BAR Offset 0x02 HST_CNT controlling register BAR Offset 0x03 HST_CMD command register Bit 7 0 used to select GPIO controlling register BAR Offset 0x04 XMIL_SLAVE address register Bit 7...

Страница 32: ...t bit 4 2 of HST_CNT register to 010 write 0x41 read command to XMIL_SLAVE register write GPIO controlling register 0x00 to HST_CMD 5 Start set HST_CNT bir 6 START to 1 start to transmit address comma...

Страница 33: ...43h System timer 044h 05Fh Motherboard resources 060h Standard 101 102 key or Microsoft Natural PS 2 Keyboard 061h System speaker 063h Motherboard resources 064h Standard 101 102 key or Microsoft Natu...

Страница 34: ...01G ICH7 Family SMBus Controller 27DA 4D0h 4D1h Motherboard resources 500h 53Fh Motherboard resources 800h 87Fh Motherboard resources A00h A7Fh Motherboard resources 0D00h FFFFh PCI bus D480h D49Fh In...

Страница 35: ...cessor IRQ1 Primary IDE Channel IRQ1 Secondary IDE Channel IRQ1 Intel R 82801G ICH7 Family PCI Express Root Port 27D0 IRQ1 Intel R 82801G ICH7 Family USB Universal Host Controller 27CB IRQ1 Microsoft...

Страница 36: ...EVOC 2009 1 2 3 10 4 5 6 7 8 9 30...

Страница 37: ...1 1 2 2 2 2 2 2 2 3 CF 3 SATA 3 3 3 I O 3 Watchdog 3 4 4 5 6 7 LVDS 7...

Страница 38: ...USB 7 8 8 10 10 11 11 I O 12 SATA 12 CF 13 MiniPCI E 14 BIOS 15 Advanced 16 Chipset 21 PCIPnP 22 23 Watchdog 23 IO 25 I O 28 IRQ 30...

Страница 39: ...EC4 1812CLDNA 1 Intel EPIC ATOM N270 CPU Intel 945GSE Intel ICH7 M 512MB DDR2 1GB VGA LVDS USB2 0 10 100 1000Mbps HDA SATA CF RS 232 TTL MiniPCI E I O 5V...

Страница 40: ...DNA l 20 60 5 95 l 40 C 80 C 5 95 l 115 00 mm x 165 00mm CPU Intel Atom 1 6G 1G 512M DDR2 533MHz l 5V 2 8A 5 3 ATOM N270 CPU Intel 945GSE Intel ICH7 M 512MB 1GB DDR2 Intel 945GSE VGA LVDS 10 100 1000M...

Страница 41: ...EC4 1812CLDNA 3 HDA CF Compact Flash SATA SATA 3 0Gb s SATA SATA 2 5 SATA 2 5 3 5 SATA 5V MiniPCI E I O COM RS 232 TTL USB2 0 RESET I O Watchdog 1 255...

Страница 42: ...4 EC4 1812CLDNA 154 84 165 00 104 85 5 08 5 08 115 00 mm...

Страница 43: ...EC4 1812CLDNA 5 AUDIO1 LAN1 USB3 USB2 USB1 VGA1 LVDS2 LVDS1 LCDB1 JLCDB1 JLCD1 PWR1 MPCIE1 J1 LED2 COM1 COM3 JCC1 GPIO1 COM2 COM4 COM6 COM5 JCF1 SATA1 SATA2 CF1 1 1 2 3...

Страница 44: ...812CLDNA JCC1 CMOS CMOS BIOS CMOS 1 2 Default JCC1 1 2 CMOS BIOS JCF1 CF 1 2 3 3V Default JCF1 2 3 5V JLCDB1 LVDS 1 2 12V Default JLCDB1 2 3 5V JLCD1 LVDS 3 3V 5V LVDS LVDS LVDS 1 2 3 3V Default JLCD1...

Страница 45: ...ED LED2 5 WLAN_LED 6 WLAN_LED LVDS 1 VCC_LCDBKLT 2 LCD_BKLTCTL 3 LCD_BKLTEN LCDB1 4 GND VCC_LCDBKLT LCD_BKLTCTL LCD_BKLTEN USB USB1 USB2 USB3 2 5Pin 2 0mm USB 1 5V 2 5V 3 USB1_Data 4 USB2_Data 5 USB1_...

Страница 46: ...GND 6 DSR 7 RTS 8 CTS COM1 COM2 COM3 COM4 9 RI 10 NA 2 COM5 COM6 TTL COM5 COM6 2 3Pin 2 0mm COM 1 COM5_ TXD COM7_ TXD 2 COM6_ TXD COM8_ TXD 3 COM5_ RXD COM7_ RXD 4 COM6_ RXD COM8_ RXD COM5 COM6 5 GND...

Страница 47: ...0 LVDS0_D2 11 GND 12 GND 13 LVDS0_CLK 14 LVDS0_CLK 15 GND 16 GND 17 NC 18 NC LVDS1 19 VDD 20 VDD LVDS2 1 LVDSE_D0 2 LVDSE_D0 3 GND 4 GND 5 LVDSE_D1 6 LVDSE_D1 7 GND 8 GND 9 LVDSE_D2 10 LVDSE_D2 11 GND...

Страница 48: ...812CLDNA LAN1 2 7Pin 2 0mm 10 100 1000Mbps 1 MX0 2 MX0 3 MX1 4 MX1 5 MX2 6 MX2 7 MX3 8 MX3 9 GND 10 GND 11 LINK_LED 12 LINK_LED LAN1 13 ACT_LED 14 ACT_LED RJ45 LILED ACTLED 1000Mbps 100Mbps 10Mbps PWR...

Страница 49: ...4 GND 8 NC AUDIO1 2 5Pin 2 0mm J1 2 5Pin 2 0mm 1 SPEAK 2 5V 3 RESET 4 GND 5 Keyboard Data 6 Keyboard Clock 7 GND 8 Mouse Clock J1 9 5V 10 Mouse Data 1 LOUT_R 2 LOUT_L 3 GND_AUDIO 4 GND_AUDIO 5 LIN_R...

Страница 50: ...1 GND B5 GND A2 TX B6 GND A3 TX B7 5VL A4 GND B8 5V A5 RX B9 5V A6 RX B10 GND A7 GND B11 NC B1 NC B12 GND B2 NC B13 NC B3 NC B14 NC SATA1 SATA2 B4 GND B15 NC SATA SATA 2 5 SATA 2 5 3 5 SATA 1 INPUT0 2...

Страница 51: ...3 5 D6 30 D14 6 D7 31 D15 7 CS0 32 CS1 8 GND 33 NC 9 GND 34 IOR 10 GND 35 IOW 11 GND 36 WE 12 GND 37 IRQ 13 VCC 38 VCC 14 GND 39 CSEL 15 GND 40 NC 16 GND 41 RESET 17 GND 42 IORDY 18 A2 43 DREQ 19 A1 4...

Страница 52: ...SERVED_SIM0 17 RESERVED0 18 GND 19 RESERVED1 20 RESERVED_DISABLE 21 GND 22 PERST 23 PETN0 24 3 3V 25 PETP0 26 GND 27 GND 28 1 5V 29 GND 30 SMB_CLK 31 PERN0 32 SMB_DATA 33 PERP0 34 GND 35 GND 36 USB_D...

Страница 53: ...Overview Processor Genuine Intel R CPU 2 40GHz Speed 2400MHz Cores 1 System Memory Size 504MB System Time 00 47 55 System Date Wed 03 30 2007 Select Screen Select Item Change Field Tab Select Field F1...

Страница 54: ...Screen Tab Select Field F1 General Help F10 Save and Exit ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc 1 CPU Configuration BIOS SETUP UTILITY Configure advanced CPU settings Module V...

Страница 55: ...y IDE Master Not Detected Third IDE Master Not Detected Third IDE Slave Not Detected Fourth IDE Master Not Detected Fourth IDE Slave Not Detected Select Screen Select Item Change Field Tab Select Fiel...

Страница 56: ...rt IRQ Attribute Level Active Low Serial Port5 Address 220 Serial Port5 IRQ 10 Serial Port6 Address 228 Serial Port6 IRQ 10 Serial Port7 Address 230 Serial Port7 IRQ 10 Serial Port8 Address 238 Serial...

Страница 57: ...ITY Hardware Health Configuration CPU Temperature 34 93 System Temperature 34 93 Vcore 1 148 V V1 50 1 437 V V1 80 1 783 V V3 30 3 300 V VBAT 3 048 V Enables Hardware Health Monitoring Device Select S...

Страница 58: ...7 c Copyright 1985 2004 American Megatrends Inc 1 Resume on RTC Alarm ATX 6 Clock Generator Configuration BIOS SETUP UTILITY Clock Generator Configuration Spread Spectrum Enabled Allows BIOS to Set Cl...

Страница 59: ...splay Device CRT LVDS Flat Panel Type 800 600 SouthBridge Configuration Audio Controller Enabled PCIE port 0 Auto PCIE port 1 Auto PCIE port 2 Auto PCIE port 3 Auto PCIE port 4 Auto PCIE port 5 Auto S...

Страница 60: ...ction IRQ3 Available IRQ4 Available IRQ5 Available IRQ7 Available IRQ9 Available IRQ10 Available IRQ11 Available IRQ14 Available IRQ15 Available Select Screen Select Item Change Field F1 General Help...

Страница 61: ...DT WDT WDT WDT WDT WDT 1 WDT define INDEX_PORT 0x4E define DATA_PORT 0x4F unsigned int tmp_reg unsigned int pm_base outportb INDEX_PORT 0x55 outportb INDEX_PORT 0x07 outportb DATA_PORT 0x0A outportb I...

Страница 62: ...eg inportb DATA_PORT pm_base pmbase 8 tmp_reg pm_base 2 WDT a WDT outportb pm_base 0x47 0x0C b WDT unsigned int irq irq IRQ_NO IRQ_NO irq irq irq 4 outportb pm_base 0x47 0x80 outportb pm_base 0x67 irq...

Страница 63: ...0xFF TIME_OUT_VALUE b WDT outportb pm_base 0x66 0x00 IO PCA 9534 8 PIN SMBUS I O BAR 0x400 PCA9534 slave_adr 0x20 8 7 bit 7 1 0x20 bit 0 0 write bit 0 1 read 0x40 GPIO 0x41 GPIO 4 GPIO 0x00 input por...

Страница 64: ...in output enable input disable 5 SMBUS BAR Offset 0x00 HST_STS BAR Offset 0x02 HST_CNT BAR Offset 0x03 HST_CMD Bit 7 0 GPIO BAR Offset 0x04 XMIL_SLAVE Bit 7 0 Slave Address BAR Offset 0x05 DATA0 1 GPI...

Страница 65: ...12CLDNA 27 bir 1 INTR 1 3 2 GPIO 4 GPIO Smbus I O 0xbf HST_STS HST_CNT bit 4 2 010 0x41 XMIL_SLAVE GPIO 0x00 HST_CMD 5 HST_CNT bir 6 START 1 HST_STS bir 2 DEV_ERR 1 bir 1 INTR 1 input input DATA0 DATA...

Страница 66: ...02 key or Microsoft Natural PS 2 Keyboard 065h Motherboard resources 067h 06Fh Motherboard resources 070h 071h System CMOS real time clock 072h 07Fh Motherboard resources 080h Motherboard resources 08...

Страница 67: ...troller 27DA 4D0h 4D1h Motherboard resources 500h 53Fh Motherboard resources 800h 87Fh Motherboard resources A00h A7Fh Motherboard resources 0D00h FFFFh PCI bus D480h D49Fh Intel R 82801G ICH7 Family...

Страница 68: ...l R 82801G ICH7 Family PCI Express Root Port 27D0 IRQ16 Intel R 82801G ICH7 Family USB Universal Host Controller 27CB IRQ16 Microsoft UAA Bus Driver for High Definition Audio IRQ16 Mobile Intel R 945...

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