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Diamond Systems Hercules III Скачать руководство пользователя страница 81

Hercules III User Manual Rev A.2

www.diamondsystems.com

Page

81

21. WATCHDOG TIMER PROGRAMMING

Hercules  III  contains  a  watchdog  timer  circuit  consisting  of  one  programmable  timer.    The  input  to  the  circuit  is
WDI and the output is WDO, which appear on connector J8.  WDI may be triggered in hardware or in software.  A
special  “early”  version  of  WDO  may  be  output  on  the  WDO  pin.    When  this  signal  is  connected  to  WDI,  the
watchdog circuit is retriggered automatically.

The watchdog timer duration is user-programmable. When WDT is triggered, it begins to count down. Upon
reaching zero, it generates a user-selectable combination of the following events.

•

System management interrupt

•

Hardware reset

The watchdog timer circuit is programmed using I/O registers located at address 0x25C. Detailed programming
information is described, below. The Hercules III watchdog timer is supported in the DSC Universal Driver
software version 5.7 and later.

21.1

Watchdog Timer Register Details

The registers in the following table are used to program the watchdog timer.

I/O Address

Write Function

Read Function

0x25C

WDT trigger

None, write-only

0x25D

WDT, counter

None, write-only

0x25E

Watchdog control

Readback

0x25F

Chip select enable/disable

Readback the last bits written

In the tables, below, a blank bit (-) indicates the bit is unused. A blank bit in the read registers reads back as 0 or
1, unknown state.

I/O Address: 0x25C (Write)

Bit:

7

6

5

4

3

2

1

0

Name:

-

WDTRIG

-

WDTRIG Writing a 1 triggers an immediate software reload of the watchdog timer.

I/O Address: 0x25D (Write)

Bit:

7

6

5

4

3

2

1

0

Name:

WDT3

WDT2

WDT1

WDT0

-

WDT4-7

Writing to bits WDT4-7 loads the watchdog timer with the 4-bit counter value. Use this
register to set the countdown period. Each tick is 145ms, so the period range is 145ms to
2.175 seconds (1 to 15).

I/O Address: 0x25E (Read/Write)

Bit:

7

6

5

4

3

2

1

0

Name:

WDIEN

WDOEN

WDSMI

WDEDGE

-

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Содержание Hercules III

Страница 1: ...Comment A 0 7 5 13 Initial version A 1 4 3 15 Minor updates A 2 5 9 18 Update Manufacturer PN for J35 Copyright 2015 2018 FOR TECHNICAL SUPPORT Diamond Systems Corporation PLEASE CONTACT 158 Commerci...

Страница 2: ...ge Devices 11 3 2 6 Connecting Power 11 3 2 7 Display 11 3 3 BOOTING THE SYSTEM 12 3 3 1 BIOS Setup 12 3 3 2 Operating System Drivers 12 4 FUNCTIONAL OVERVIEW 13 4 1 FUNCTIONAL BLOCK DIAGRAM 13 4 2 FU...

Страница 3: ...DRESS SELECTION JP7 32 7 5 PCI 104 CONNECTOR VIO JP9 33 7 6 COM3 COM4 CONFIGURATION JP10 JP11 33 8 SYSTEM OPERATION 34 8 1 SYSTEM RESOURCES 34 8 2 CONSOLE REDIRECTION TO A SERIAL PORT 34 8 3 WATCHDOG...

Страница 4: ...sion Formulas for Bipolar Output Ranges 74 17 GENERATING AN ANALOG OUTPUT 75 17 1 COMPUTE THE D A CODE FOR THE DESIRED OUTPUT VOLTAGE 75 17 2 WRITE THE VALUE TO THE SELECTED OUTPUT CHANNEL REGISTERS 7...

Страница 5: ...he edge to avoid possible shorting from this type of damage However these design rules are not sufficient to prevent damage in all situations A third cause of failure is when a metal screwdriver tip s...

Страница 6: ...e acceptable range of voltages connected to digital I O signals is 0 5V and they can withstand about 0 5V beyond that 0 5 to 5 5V before being damaged However logic signals at 12V and even 24V are com...

Страница 7: ...1600A 1G 1 6GHz 1GB Yes Standard model HRCE1600D 1G 1 6GHz 1GB DIO only MOQ of 50 HRCE1600A 2G 1 6GHz 2GB Yes MOQ of 50 HRCE1600D 2G 1 6GHz 2GB DIO only MOQ of 50 The Hercules III SBC brings the ISA a...

Страница 8: ...s Watchdog timer 1 24 bit and 1 16 bit counter timer for A D sample rate control event counting and programmable interrupts Auto calibration with Universal Driver software support 2 3 Expansion Option...

Страница 9: ...ules III User Manual covers basic hardware setup power connection system boot up and initial software configuration After Hercules III is up and running refer to the later sections of this manual for...

Страница 10: ...cess to most of Hercules III s I O features The kit s cable assemblies are identified in the following table Number Quantity Cable No Description Connects to 1 1 6981006 Power out cable J15 2 1 698101...

Страница 11: ...nto the appropriate connectors on the Main I O cable in the Hercules III Cable Kit cable number 6981022 Connect the end of the cable into connector J16 on Hercules III 3 2 4 mSATA Flashdisk Socket Her...

Страница 12: ...meters Options configurable via Setup typically include Number and type of mass storage devices Boot device priority default is mSATA Video display type and resolution USB SATA serial and parallel int...

Страница 13: ...Hercules III User Manual Rev A 2 www diamondsystems com Page 13 4 FUNCTIONAL OVERVIEW 4 1 Functional Block Diagram...

Страница 14: ...h integrated agnetic The Wake On LAN feature requires integration with the board s power supply and Hercules III BIOS 4 2 4 USB Hercules III offers 5 user accessible USB 2 0 ports All ports have minim...

Страница 15: ...tack through connectors press fit onto the board enabling expansion both above and below the board 4 2 12 Power Supply Hercules III contains an on board DC DC power supply with 55 watts of output powe...

Страница 16: ...upported by the video chipset Console display and keyboard redirection to serial port DSC configurable default settings in battery less configurations Initialize USB keyboard mouse Customizable splash...

Страница 17: ...Ports 1 2 3 4 J20 External Battery J21 USB 0 1 J22 USB 2 3 J23 USB 4 USB Device J24 LVDS LCD J25 VGA J27 Serial Ports 5 6 J28 LCD backlight power J32 CANbus J29 Power Input J34 GPS PPS J35 mSATA Sock...

Страница 18: ...C3 D3 IRQ10 SD4 A5 B5 5V LA21 C4 D4 IRQ11 SD3 A6 B6 DRQ2 LA20 C5 D5 IRQ12 SD2 A7 B7 12V LA19 C6 D6 IRQ15 SD1 A8 B8 ENDXFR LA18 C7 D7 IRQ14 SD0 A9 B9 12V LA17 C8 D8 DACK0 IOCHRDY A10 B10 Key MEMR C9 D9...

Страница 19: ...AD13 GND AD12 8 3 3V C BE1 AD15 3 3V 9 SERR GND SB0 PAR 10 GND PERR 3 3V SDONE 11 STOP 3 3V LOCK GND 12 3 3V TRDY GND DEVSEL 13 FRAME GND IRDY 3 3V 14 GND AD16 3 3V C BE2 15 AD18 3 3V AD17 GND 16 AD2...

Страница 20: ...Output 5V In 17 18 N C N C 19 20 Ground Connector type Shrouded 1 dual row straight pin header with gold flash plating 6 5 Digital I O J8 Hercules III includes a 50 pin header J8 for all digital I O D...

Страница 21: ...O port D programmable direction DIO E7 E0 Digital I O port E programmable direction E3 E0 may be configured for PWM signals EXTTRIG External A D trigger input TOUT0 1 Counter Timer 0 1 output PWM0 3...

Страница 22: ...Vin 22 Vin 6 19 20 Vin 6 Vin 7 21 22 Vin 23 Vin 7 21 22 Vin 7 Vin 8 23 24 Vin 24 Vin 8 23 24 Vin 8 Vin 9 25 26 Vin 25 Vin 9 25 26 Vin 9 Vin 10 27 28 Vin 26 Vin 10 27 28 Vin 10 Vin 11 29 30 Vin 27 Vin...

Страница 23: ...tor Tyco 1 640456 0 or equivalent Diamond Systems cable number 6981025 mates with this header 6 9 Audio AMP J13 Speaker Left 1 2 Volume Low Speaker Left 3 4 Volume Mid Wipe Line level Mono output 5 6...

Страница 24: ...DTR 3 27 28 RI 3 NC 27 28 NC RXD 3 27 28 NC GND 29 30 NC GND 29 30 NC GND 29 30 NC Port 4 DCD 4 31 32 DSR 4 NC 31 32 NC NC 31 32 NC RXD 4 33 34 RTS 4 TXD RXD 4 33 34 TXD RXD 4 TXD 4 33 34 TXD 4 TXD 4...

Страница 25: ...n a panel mount housing Connector type Standard 2 54mm dual row straight pin header with 4mm posts and gold flash plating 6 14 LCD Panel LVDS Interface J24 Connector J24 provides access to the interna...

Страница 26: ...CD display only powered up when LCD display is active Ground Power Ground 0V Connector on board JST model number BM30B SRDS G TF or equivalent Mating cable connector JST model number SHDR 30V S B or e...

Страница 27: ...10 NC Port 6 NC 11 12 NC RXD 6 13 14 RTS 6 TXD 6 15 16 CTS 6 NC 17 18 NC GND 19 20 NC Diamond Systems cable number C DB9M 2 provides a standard DB9 connector at each end and mates with this header 6...

Страница 28: ...ocket Molex P N510210400 or equivalent Diamond Systems cable number 6981314 mates with this header 6 19 Power Input J29 Input power for Hercules III is supplied from a 7 40V external supply through co...

Страница 29: ...mSATA modules Signal Name Pin Pin Signal Name NC 1 2 3 3V NC 3 4 GND NC 5 6 NC NC 7 8 NC GND 9 10 NC NC 11 12 NC NC 13 14 NC GND 15 16 NC Key NC 17 18 GND NC 19 20 NC GND 21 22 NC TX 23 24 3 3V TX 25...

Страница 30: ...0 UIM_DATA 11 REFCLK 12 UIM_CLK 13 REFCLK 14 UIM_RESET 15 GND 16 UIM_VPP Mechanical Key 17 Reserved UIM_C8 18 GND 19 Reserved UIM_C4 20 W_DISABLE 21 GND 22 PERST 23 PERn0 24 3 3Vaux 25 PERp0 26 GND 27...

Страница 31: ...ing table The default is no jumpers installed Pins Jumper installed Default 1 2 Provides 120 termination between the D D lines in RS 485 mode for COM3 No jumper 3 4 Provides 120 termination between th...

Страница 32: ...ins Jumper installed Default 1 2 5V LCD backlight power Jumper 2 3 12V LCD backlight power No jumper JP6 LCD panel scan direction and frame rate control Pins Jumper installed Jumper not installed Defa...

Страница 33: ...power No jumper 2 3 3 3V PCI VIO power Jumper 7 6 COM3 COM4 Configuration JP10 JP11 COM3 and COM4 can be configured as follows using jumpers JP10 and JP11 respectively The jumper settings work the sam...

Страница 34: ...nfiguration are on board Ethernet sound video USB and any PC 104 Plus cards that are in the system These settings may also vary depending on what other devices are present in the system For example ad...

Страница 35: ...tom for Continue C R after POST select Off default to turn off after POST or select On to remain on always 8 Exit the BIOS and save your settings 8 3 Watchdog Timer Hercules III contains a watchdog ti...

Страница 36: ...nd COM2 may be modified COM1 and COM2 address and interrupt settings are configured using the Advanced Advanced Chipset Control I O Chip Device Configuration menu The addresses and IRQ selections of C...

Страница 37: ...e aware that increasing these timings may adversely affect system stability with external add on PC 104 cards This setting has no direct affect on PCI or memory speeds it only affects ISA PC 104 devic...

Страница 38: ...ion Direct default or Modem Console Type PC ANSI default VT100 VT100 8 bit PC ANSI 7 bit VT100 or VT UTF8 Flow Control CTS RTS default XON XOFF None Number of video Pages to support 1 default to 8 Not...

Страница 39: ...base address and interrupt level The addresses of COM3 and COM4 are fixed The IRQ settings for COM3 and COM4 are fixed 10 3 USB Ports Four USB 2 0 ports USB0 through USB3 are accessible using cable a...

Страница 40: ...ions included on the CD to install drivers for the different operating systems 11 1 2 BIOS Setting for Windows When using any version of Windows the Operating System selection in the BIOS setup menus...

Страница 41: ...rrupt rate is reduced by a factor equal to the size of the FIFO threshold enabling a faster A D sampling rate In DOS or similar low overhead OSs the circuit can operate at sampling rates of up to 250...

Страница 42: ...Hercules III User Manual Rev A 2 www diamondsystems com Page 42 Figure 1 Data Acquisition Block Diagram...

Страница 43: ...Analog configuration register A D MSB 2 A D low channel A D low channel readback 3 A D high channel A D high channel readback 4 A D range register A D range status readback 5 D A channel 6 D A LSB 7 D...

Страница 44: ...ROM Access Key Register FPGA Revision Code Page 2 Base Write Function Read Function 24 D A waveform future Feature ID register A D 25 D A waveform future Feature ID register D A 26 D A waveform future...

Страница 45: ...N SCANEN CLKSEL CLKEN 14 15 FIFORST DARST CLRT CLRD CLRA ADSTART 16 DIOA7 DIOA6 DIOA5 DIOA4 DIOA3 DIOA2 DIOA1 DIOA0 17 DIOB7 DIOB6 DIOB5 DIOB4 DIOB3 DIOB2 DIOB1 DIOB0 18 DIOC7 DIOC6 DIOC5 DIOC4 DIOC3...

Страница 46: ...OB7 DIOB6 DIOB5 DIOB4 DIOB3 DIOB2 DIOB1 DIOB0 18 DIOC7 DIOC6 DIOC5 DIOC4 DIOC3 DIOC2 DIOC1 DIOC0 19 DIOD7 DIOD6 DIOD5 DIOD4 DIOD3 DIOD2 DIOD1 DIOD0 20 DIOE7 DIOE6 DIOE5 DIOE4 DIOE3 DIOE2 DIOE1 DIOE0 2...

Страница 47: ...9 A6 A5 A4 A3 A2 A1 A0 30 0 TDBUSE EEBUSY CMUXEN 0 0 0 0 31 Page 2 Write Offsets base 24 through base 31 are reserved for a future D A waveform generator circuit Base 7 6 5 4 3 2 1 0 0 HOLDOFF RESET P...

Страница 48: ...t to 0x04 3 D A channels are cleared to mid scale or zero scale depending on the board jumper setting 4 Counter timers are disabled and counter registers are cleared to zero 5 Watchdog timer is disabl...

Страница 49: ...well as a 32x4 table for all 32 input channels that can be used for individual input ranges for each channel The chip uses either the global input range setting or the individual range table based on...

Страница 50: ...tput range SEDIFF 0 single ended 1 differential A D mode ADBU 0 bipolar 1 unipolar A D input range G 1 0 Readback of global A D gain setting The individual A D gain settings may not be read back D A C...

Страница 51: ...threshold value MSB When the FIFO depth is greater than or equal to the FIFO threshold TF threshold flag 1 and an A D interrupt request will be generated if FIFOEN 1 and ADINTE 1 The FIFO size is 2048...

Страница 52: ...LED Active high a simple status bit used to drive external LED Default is high upon power up SINGLE Indicates whether to use the global A D input range or the individual input range table for A D con...

Страница 53: ...s programmed threshold set with FT11 0 When FIFOEN 0 and AINTE 1 A D interrupts occur according to the following conditions a if SCANEN 1 the interrupt occurs at the end of the scan and the FIFO conta...

Страница 54: ...flag 0 FIFO is not full 1 FIFO is full TF FIFO threshold flag 0 FIFO depth is below the programmed threshold 1 FIFO depth is at or above the programmed threshold EF FIFO empty flag 0 not empty 1 empty...

Страница 55: ...ration The current default value is 11 ADCH4 0 Current A D channel This is the channel sampled on the next A D conversion Digital I O Port A Base 16 Read Write Bit 7 6 5 4 3 2 1 0 Name DIOA7 0 DIOA7 0...

Страница 56: ...E3 0 pins of I O connectors 1 PWM signals appear on DIOE3 0 pins of I O connectors See register Base 12 Configuration Register for details Digital I O Configuration Bit Programming Base 22 Write Bit 7...

Страница 57: ...8 CSB middle byte for counter timer 0 MSB for counter timer 1 Counter Timer Data Byte 3 Base 26 Read Write Bit 7 6 5 4 3 2 1 0 Name CTRD23 16 CTRD23 16 MSB for counter timer 0 Counter Timer Control B...

Страница 58: ...is bit is set 1 the remaining bits of this register are ignored and instead watchdog timer A is retriggered i e reloaded with its initial value If this bit is reset 0 the remaining bits in this regist...

Страница 59: ...ge settings are cleared to zero except for the Analog Configuration Register Base 1 which is set to 0x04 3 D A channels are cleared to mid scale or zero scale depending on the board jumper setting 4 C...

Страница 60: ...0 value of bits 1 3 are zero which is the load counter command If FLAG 1 selects internal clock source for both PWM counters 0 10MHz 1 100 KHz POL If FLAG 0 value of bits 1 3 are zero which is the loa...

Страница 61: ...Base 30 Write Bit 7 6 5 4 3 2 1 0 Name EE_EN EE_RW RUNCAL CMUXEN TDACEN EE_EN EEPROM Enable Setting this bit initiates a transfer to from the EEPROM the direction is indicated by the EE_RW bit However...

Страница 62: ...tus 0 disabled 1 enabled Note When either TDBUSY or EEBUSY is set do not access the data and address registers at Base 12 and Base 13 EEPROM Access Key Base 31 Write Bit 7 6 5 4 3 2 1 0 Name EEPROM Ac...

Страница 63: ...eared to mid scale or zero scale depending on the board jumper setting 4 Counter timers are disabled and counter registers are cleared to zero 5 Watchdog timer is disabled and timer registers are clea...

Страница 64: ...es the number of counter timers available on the board Chip ID LSB Base 28 Read Bit 7 6 5 4 3 2 1 0 Name ID7 0 ID7 0 See Chip ID MSB Base 29 below Chip ID MSB Base 29 Read Bit 7 6 5 4 3 2 1 0 Name ID1...

Страница 65: ...d range settings are cleared to zero except for the Analog Configuration Register Base 1 which is set to 0x04 3 D A channels are cleared to mid scale or zero scale depending on the board jumper settin...

Страница 66: ...or the inputs which causes them to be amplified before they reach the A D converter The gain setting is controlled in software which allows it to be changed on a channel by channel basis In general yo...

Страница 67: ...o base 2 The first conversion is on channel 0 the second will be on channel 1 and the third will be on channel 2 The channel counter wraps around to the beginning so the fourth conversion will be on c...

Страница 68: ...ther registers on the board the A D data may only be read one time because each time a byte is read from the FIFO the internal FIFO pointer advances and that byte is no longer available Reading data f...

Страница 69: ...olic Formula Input Voltage for 5V Range 32768 VFS 5 0000V 32767 VFS 1 LSB 4 9998V 1 1 LSB 0 00015V 0 0 0 0000V 1 1 LSB 0 00015V 32767 VFS 1 LSB 4 9998V 14 8 2 Conversion Formula for Unipolar Input Ran...

Страница 70: ...to an integral number of scans For example if the scan size is 8 channels the FIFO threshold should be set to 8 16 24 32 40 or 48 but not less than 8 This way the interrupt will occur at the end of t...

Страница 71: ...d with ADCLK Base 4 bit 4 STS stays high during the entire scan multiple A D conversions A D interrupt occurs when the FIFO reaches its programmed threshold The interrupt routine reads the number of s...

Страница 72: ...f this LSB is calculated as follows 1 LSB Output voltage range 4096 Example For Output range 0 10V Output voltage range 10V 0V 10V Therefore 1 LSB 10V 4096 2 44mV Example For Output range 10V Output v...

Страница 73: ...unipolar mode 0 10V and Full scale range 10V 0V 10V if Desired output voltage 2 000V D A code 2 000V 10V 4096 819 2 819 Note the output code is always an integer For the unipolar output range 0 10V 1...

Страница 74: ...l scale range 10V 10V 20V if Desired output voltage 2 000V D A code 2V 10V 2048 2048 2457 6 2458 For the bipolar output range 10V 1 LSB 1 4096 20V or 4 88mV The following table illustrates the relatio...

Страница 75: ...ompute the LSB and MSB values LSB D A Code 255 keep only the low 8 bits MSB int D A code 256 strip off low 8 bits keep 4 high bits Example For Output code 1776 Compute LSB 1776 255 240 0xF0 and MSB in...

Страница 76: ...with 16 bit accuracy exhibit gain and offset errors that vary depending on the gain setting The settings that work best for one range may not be sufficient to calibrate another If a circuit is calibra...

Страница 77: ...OC4 DIOC3 DIOC2 DIOC1 DIOC0 19 DIOD7 DIOD6 DIOD5 DIOD4 DIOD3 DIOD2 DIOD1 DIOD0 20 DIOE7 DIOE6 DIOE5 DIOE4 DIOE3 DIOE2 DIOE1 DIOE0 21 22 MODE P2 P1 PO DIRE B2 DIRD B1 DIRC B0 DIRB D DIRA The digital I...

Страница 78: ...except that it is a 16 bit counter Counter 1 also has an input a gate and an output These signals may be user provided on the I O header when DIOCTR is 0 or the input may come from the on board clock...

Страница 79: ...le outp base 13 high outp base 14 high 15 Load the counter Counter 0 Counter 1 outp base 15 0x02 outp base 15 0x82 16 Enable the gate if desired The gating may be enabled or disabled at any time When...

Страница 80: ...eared after stopping disabling and reading the counter If you clear a counter while it is enabled it continues to count incoming pulses so the counter value may not remain at zero 21 Stop disable the...

Страница 81: ...les III watchdog timer is supported in the DSC Universal Driver software version 5 7 and later 21 1 Watchdog Timer Register Details The registers in the following table are used to program the watchdo...

Страница 82: ...0 WDEDGE 0 Falling edge on WDI retriggers watchdog timer when WDIEN 1 1 Rising edge on WDI retriggers watchdog timer when WDIEN 1 I O Address 0x25F Read Write Bit 7 6 5 4 3 2 1 0 Name COM4EN COM3EN FP...

Страница 83: ...mples programmable interrupt threshold 22 2 Analog Outputs data acquisition units only No of outputs 4 D A resolution 12 bits 1 4096 of full scale Output ranges Unipolar 0 10V or user programmable Bip...

Страница 84: ...contain from 8GB to 64GB of solid state non volatile memory that operates like a disk drive without requiring additional driver software support The flashdisk module installs directly on the mSATA fl...

Страница 85: ...PS 2 Audio HD audio with Realtek ALC262 CODEC Expansion sockets PCIe MiniCard full sized socket GPS receiver socket 24 2 Data Acquisition Circuitry Analog inputs 32 single ended 16 differential user...

Страница 86: ...4V min 5 0V max Output current Logic 0 64mA max per line Logic 1 15mA max per line A D Pacer clock 24 bit down counter source 10MHz 1MHz or external signal General purpose 16 bit down counter source...

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