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Connect Tech Blue Heat/Net Sync User Manual

14 Revision 0.03

Loopback Connectors

Loopback connectors are useful for performing diagnostics. The following figure illustrates the
recommended pinouts for creating loopback connectors for Blue Heat/Net Sync.

Figure 7: Recommended Pinouts for V.28 (RS-232) Loopback Connector

Figure 8: Recommended Pinouts for a V.11 (RS422) Loopback Connector

NOTES:
1. For an asynchronous loopback, omit the TXC and RXC pin.
2. When using clock signals, one signal must be configured as an

input, while the other must be configured as an output.

3. When using a DB-25 female loopback connector, solder cup

DB-25 connectors and 24 AWG solid core wire, such as wire
from a CAT5 cable is recommended.

2 - TX-

14 - TX+

16 - RX+

3 - RX-

9 - RXC+

17 - RXC-

11 - TXC+

12 - TXC-

7 - SR

DB-25 Male

2 - TX

3 - RX

4 - RTS

5 - CTS

6 -DSR

8 - DCD

20 - DTR

22 - RI

15 - TXC

17 - RXC

DB-25 Male

Содержание Blue Heat/Net Sync

Страница 1: ...onous Communications Connect Tech Inc 42 Arrow Road Guelph Ontario N1K 1S6 Tel 519 836 1291 Toll 800 426 8979 North America only Fax 519 836 4878 Email sales connecttech com support connecttech com Web www connecttech com CTIM 00044 Revision 0 03 July 8 2010 ...

Страница 2: ... Tech Inc reserves the right to substitute an equivalent product if available or to retract lifetime warranty if no replacement is available The above warranty is the only warranty authorized by Connect Tech Inc Under no circumstances will Connect Tech Inc be liable in any way for any damages including any lost profits lost savings or other incidental or consequential damages arising out of the us...

Страница 3: ...ile Technical Support representatives are ready to answer your call Monday through Friday from 8 30 a m to 5 00 p m Eastern Standard Time Our numbers for calls are Telephone 800 426 8979 North America only Telephone 519 836 1291 Live assistance available 8 30 a m to 5 00 p m EST Monday to Friday Facsimile 519 836 4878 online 24 hours Email Internet You may contact us through the Internet Our email...

Страница 4: ...andards as required by the Electromagnetic Compatibility EMC Directive for General Immunity Compliance EN 55022 Conducted and Radiated emissions CISPR 22 Class A EN 55024 Immunity to Disturbances EN 61000 4 2 EN 61000 4 4 EN 61000 4 6 EN 61000 3 2 Exempt EN 61000 4 3 EN 61000 4 5 EN 61000 4 11 EN 61000 3 3 Pass The above satisfy the requirements of Preliminary Testing is still pending USA FCC CFR4...

Страница 5: ...lock 12 RS 422 V 11 Connections 13 Blue Heat Net Synchronous Clocking 13 Loopback Connectors 14 Connecting Power 15 DC Power Connector 15 Phoenix Locking Screw Terminal Connector 15 Activating the Special Operations Mode and Default Settings 17 Using the Reset Button to Activate the Special Operations Mode 17 Selecting a Special Operation 17 Power On Diagnostics 18 LED Error Codes 18 SCM Cabling r...

Страница 6: ...45 Auto Discover Blue Heat Net Sync 46 Firmware Upgrades 47 Upgrade using WCM Web Configuration Manager 47 Upgrade using SCM Serial Configuration Manager 47 Software Development 48 Memory Map of IUSC and PLD Functions 50 ColdFire 5272 Bus 50 IUSC Access 50 PLD Resource Access 51 PLD Memory Map Table 51 Port Settings Clock Setup and General Settings 59 IUSC Clocking Logic 61 Appendix 62 Blue Heat N...

Страница 7: ...onnector 14 Figure 8 Recommended Pinouts for a V 11 RS422 Loopback Connector 14 Figure 9 DC Power Connector Illustration 15 Figure 10 Phoenix Locking Screw Terminal Power Connector Illustration 15 Figure 11 LED Error Code Example 18 Figure 12 Blue Heat Net Sync Serial Cable Connection Diagram 21 Figure 13 Web Configuration Manager Sign In 31 Figure 14 Blue Heat Net Sync Settings 32 Figure 15 Confi...

Страница 8: ...nd Current Specifications 16 Table 2 Connector Properties 16 Table 3 Available Special Operations 18 Table 4 LED Error Codes for Blue Heat Net Sync 19 Table 5 Chip Selects 48 Table 6 Interrupts 49 Table 7 ColdFire MCF5272 GPIO 49 Table 8 Base Address Map 49 Table 9 DB 25 Female Pinouts 64 Table 10 DB 9 Female Pinouts 65 ...

Страница 9: ... modes and termination Supports NRZ NRZB NRZI Mark NRZI Space B Phase Space B Phase Manchester Differential Bi Phase encoding Transmission rates up to 9 216 Mbps synchronous 230 4 Kbps asynchronous 10 Mbps communications possible with external clock Bipolar clock input accepts sine square wave signals up to 20 MHz 10V Includes synchronous protocols SDLC HDLC MonoSync BiSync Transparent BiSync Soft...

Страница 10: ...is is part of the existing networking infrastructure Connecting serial ports in a remote location can be as easy as plugging in a Blue Heat Net Sync to the Ethernet network This provides a simple clean cabling arrangement Port Sharing In some applications it is desirable to have a serial resource that is accessed and shared by more than one host computer Connect Tech s virtual serial port technolo...

Страница 11: ...and serial port LEDs to monitor activity Power When this LED is on the Blue Heat Net Sync is receiving power CPU Once the uClinux firmware is booted and running correctly this LED lights up 10 100 This LED represents the line rate at which the Blue Heat Net Sync is connected to your network LED on a 100 megabit connection LED off a 10 megabit connection The Blue Heat Net Sync automatically detects...

Страница 12: ...nnect a Blue Heat Net Sync to another serial device Figure 2 Basic V 28 Asynchronous Connections Basic Sync V 28 RS 232 Connection Provides Clock Figure 3 Basic V 28 Synchronous Connections Basic Sync V 28 RS 232 Connection Receives Clock Figure 4 Basic V 28 Synchronous Connections NOTE The Blue Heat Net Sync clock signals are bidirectional See Blue Heat Net Sync Clocking for more details 2 TX 3 R...

Страница 13: ...very flexible The Blue Heat Net Sync DB 25 clock pins are bi directional This means that the TXC or RXC pins can be inputs receiving a clock or outputs driving a clock Functionally the two pins are equal For example the following clocking combinations are possible RXC as clock input and TXC as clock input RXC as clock output and TXC as clock output RXC as clock input and TXC as clock output RXC as...

Страница 14: ...e 8 Recommended Pinouts for a V 11 RS422 Loopback Connector NOTES 1 For an asynchronous loopback omit the TXC and RXC pin 2 When using clock signals one signal must be configured as an input while the other must be configured as an output 3 When using a DB 25 female loopback connector solder cup DB 25 connectors and 24 AWG solid core wire such as wire from a CAT5 cable is recommended 2 TX 14 TX 16...

Страница 15: ...ndard power supply requirements are as follows Model BMG006 5V 2 5A power input using a DC barrel or Phoenix screw terminal connector Rev A models 5V 2 5A 28 V DC 450mA power input using a DC barrel or Phoenix screw terminal connector Rev B or greater models only DC Power Connector Figure 9 DC Power Connector Illustration NOTE The center is positive outside is ground 0V Phoenix Locking Screw Termi...

Страница 16: ...ous models Rev B Centre Positive 5 28VDC 5V 2500mA 28V 450mA Left Positive 5 28VDC 5V 2500mA 28V 450mA Note The power input is protected by a series diode to prevent damage in the case of a reverse polarity connection Table 2 Connector Properties Type Details Part Number Typical Wire Gauge Standard DC Barrel 2 1mmID 5 5mmOD Digi Key CP3 1000 ND or equivalent 18 24 AWG Stranded Locking Screw Termin...

Страница 17: ...d flashing of the port LEDs will stop After four seconds the rapid flashing will resume and the reset button can be released After the release of the reset button the port LEDs will turn off indicating that the Special Operations Mode has terminated 2 Cancel a Special Operation If you need to cancel a special operation after it has been selected repeatedly press the reset button until all the port...

Страница 18: ...store factory default settings SEVEN presses This restores the factory default settings for ALL configuration parameters NOTE Why would I need to force port scanning Some line interface settings are inappropriate for SCM use During boot up the SCM scans only those ports set for RS 232 mode If all of the ports are configured for another mode 1 2 Duplex or Multi drop SCM port scanning is bypassed an...

Страница 19: ...sh that can be run This may occur in when there are ESD disturbances or in electrically noisy environments If this error persists it may be a hardware issue Contact Connect Tech 2 Loader code in flash has a bad CRC The regions of flash memory which hold the loader code both have CRC errors There are two redundant loaders in flash that can be run See corrective action for error code 1 3 RAM copy of...

Страница 20: ...m the server Contact Connect Tech if it persists 6 Unexpected return from the uClinux operating system This error occurs if the operating system returns back to the loader See corrective action for error code 1 7 CDS re programming failure Certain CDS items are updated during the bootup If a failure occurs during the re programming of the flash this error will occur See corrective action for error...

Страница 21: ...nc is as follows Figure 12 Blue Heat Net Sync Serial Cable Connection Diagram The key signal connections are RX TX and GND The other signals may not be required in your application If you are assembling your own SCM cable we recommend that all of the above connections be made Setting a Static or Dynamic IP Address Prior to configuring the Blue Heat Net Sync you must set a static or dynamic IP addr...

Страница 22: ...e the following steps 1 Once your CD has been inserted the Driver Software Installation menu should appear If it doesn t double click on ctisetup htm 2 Click View in the Blue Heat Net Sync Software section and then Connect in the Serial Configuration Manager section This will launch HyperTerminal that comes with Windows XP 3 Unplug the power to the Blue Heat Net Sync and plug it back in Light indi...

Страница 23: ...driver performs the translation from a standard serial COM port interface to the Blue Heat Net Sync protocol which is then delivered to the LAN as described above Configuration Manager This software manages and configures the relationships between the Blue Heat Net Sync serial ports and the COM port assignments of the Host Operating System Web Browser The host operating system supplies a Web Brows...

Страница 24: ... Configuration Manager WCM Web Configuration Manager These three methods allow the user to change configuration parameters by the method that is most convenient In some cases several methods will be employed during different stages of the setup of the Blue Heat Net Sync For example The SCM may be employed in the beginning when the unit is not connected to a network and various networking parameter...

Страница 25: ...herwise scanning is not performed and access to SCM is not available NOTE To access the Blue Heat Net Sync via the SCM your serial line interface settings must be at the default values of 9600 baud 8 data bits no parity and 1 stop bit 9600 8 n 1 No flow control is recommended In a situation where port scanning is not performed you can still access the SCM using the push button reset on the back of...

Страница 26: ...ame used for the boot up if TFTP boot is enabled and also the default file name when using the flos command This can be any sequence of characters up to 128 characters in length The default is BHNuClinux_vvv gz where vvv is the current version number of the Operating System image delay This sets the time duration for accessing the SCM application It can be set from 2 to 30 seconds the default is 3...

Страница 27: ...iption This command is to exit the SCM and reboot the Blue Heat Net Sync If CDS changes have been made a warning message is issued and the SCM will not exit Options nosave Exit without saving changes abandon changes no_reset Exit SCM without rebooting maintaining the changes to settings for this session only Booting is continued after the SCM is exited login Exit without saving changes and restart...

Страница 28: ...he default Server address to use for the update commands default is 0 0 0 0 See note below gateway_ip gip This sets the Gateway IP address This address is used when the Bootp mode is enabled default is 0 0 0 0 See note below subnetmask snm This sets the Subnet mask IP address The default is 255 255 255 0 See note 1 broadcast_ip bcip This sets the Broadcast IP address This is used when the Bootp mo...

Страница 29: ...et net 12 23 34 00 mip 45 sip 56 gip 67 dns_ip 89 The following IP addresses result the Blue Heat Net Sync unit will be 12 23 34 45 the Server will be 12 23 34 56 the Gateway will be 12 23 34 67 and the DNS IP will be 12 23 34 89 save Syntax save Description This command saves the setting changes into the CDS in the non volatile flash memory Options none update Syntax update os loader jffs server_...

Страница 30: ...o ensure the file is correctly formatted If the file is bad the command exits The version is checked against your current version If they match you will be prompted to choose if you wish to program the flash Enter y to continue If the version is different the new version needs to be saved with the save command when the update is finished When the JFFS is updated all previous contents are destroyed...

Страница 31: ...you know your IP address open your web browser and go to http _your_ip_address_ or http www hostname com You will arrive at the Blue Heat Net Sync Web Configuration Manager Sign In page The default username is wcm Leave this name as is The default password is password Use this username password combination and click the Sign In button to log on to the Web Configuration Manager Figure 13 Web Config...

Страница 32: ...Connect Tech Blue Heat Net Sync User Manual 32 Revision 0 03 Figure 14 Blue Heat Net Sync Settings ...

Страница 33: ...u the saved versus current settings The details for each configuration option are provided below Flash Enabled This option enables or disables the ability of the Blue Heat Net Sync to boot up from flash memory Bootp Enabled This option enables or disables the Blue Heat Net s ability to obtain boot up information from the server see Server IP Address below TFTP Enabled This option enables or disabl...

Страница 34: ...net mask IP address The default Subnet mask IP address is 255 255 255 0 Bootfile Name This option specifies the default file name which will be used for Blue Heat Net Sync boot up if TFTP is enabled If TFTP is enabled the Blue Heat Net Sync will attempt to download the bootfile you specify from a Server IP address you specify see Server IP Address above The bootfile name should reference a valid u...

Страница 35: ...rce and a specific firmware file path if applicable and then submit the download request This section also provides a link to reboot your Blue Heat Net This is standard procedure after installing new firmware Figure 16 Firmware Upgrades Downloads Restore Defaults The Restore Defaults page enables you to quickly reset all or some of the default basic advanced security Blue Heat Net Sync or system s...

Страница 36: ...nc at this point any configuration changes you made will be lost To permanently save your changes you need to save them to flash In order to do this click the Save to Flash button on the upper right hand side of the Web Configuration Manager page If there are changes that need to be saved the Save To Flash button will be yellow Click the Submit button to permanently save any configuration changes ...

Страница 37: ...are details for your Blue Heat Net Sync unit Monitor Serial Port Traffic This page allows you to monitor your serial port traffic For each Blue Heat Net Sync port you can view the number of bytes transmitted received whether the port is using flow control if there are any Parity Framing Overrun errors and which remote IP address is connected to your serial port If ports are active open they are sh...

Страница 38: ... of queued transmit and receive bytes Figure 20 Monitoring Network Traffic Monitor TCP IP Statistics This page allows you to view TCP IP UDP and ICMP statistics for your Blue Heat Net Sync This page also has a link which describes each of the network statistic parameters Simply click on the Parameter Descriptions link and a new window will open up which contains a description of each parameter Fig...

Страница 39: ...er Manual Revision 0 03 39 Use this link to find information such as device serial number runtime software versions and firmware versions Figure 22 My Blue Heat Net Sync Hardware Details Figure 23 My Blue Heat Net Sync Software Details ...

Страница 40: ...evelopment Installing the Blue Heat Net Sync Configuration Manager The Blue Heat Net Sync Configuration Manager is a tool to control your Blue Heat Net Sync from your local Windows operating system To install the Blue Heat Net Sync Configuration Manager on your computer insert the CD provided with your Blue Heat Net Sync into the disk drive You should see this window in your browser Figure 24 Blue...

Страница 41: ...Connect Tech Blue Heat Net Sync User Manual Revision 0 03 41 Figure 25 Blue Heat Net Sync Software Installation Screen ...

Страница 42: ...lue Heat Net Sync User Manual 42 Revision 0 03 The Blue Heat Net Configuration Manager Setup Wizard will begin Click Next to start Next you will have the option to launch the configuration manager after installation ...

Страница 43: ... prefer an alternate location specify in the space provided or click Browse to locate the new folder Click Next You will then be prompted to confirm you wish to install the Configuration Manager Select Next to begin When the Installation Complete window appears the Configuration Manager has been successfully installed Click Close to exit the installation wizard ...

Страница 44: ... Net Sync Places Screen Device Installation Select My Blue Heat Net Sync Places from the main Configuration window NOTE If there is no Blue Heat Net Sync installed you will be prompted to auto discover a Blue Heat Net Sync on your network If you choose to do so click Yes and then jump ahead to the Auto Discover Blue Heat Net Sync section Right click on My Blue Heat Net Sync Places or click on the ...

Страница 45: ...ation Manager will connect to that specific Blue Heat Net Sync and the configuration information for installation If it cannot connect it will not install the unit The Blue Heat Net Sync may get the IP address from DHCP server or it can be manually fixed The Configuration Manager will use 49152 as the default TCP port This value is configurable If you specify a MAC address located on the underside...

Страница 46: ...ing an IP address domain in the IP address box The broadcast packet will use the default UDP port 49152 but it can be changed in the Blue Heat Net Sync configuration The Stop button will end the search Figure 29 Auto Discover Blue Heat Net Sync Screen Auto Discover will list any Blue Heat Net Sync on your network along with Blue Heat Net Sync s serial number IP address host name number of availabl...

Страница 47: ...rom the remote CTI website or to download the upgrade from a local FTP server If you choose to upgrade via a local FTP server copy the firmware tar file to the anonymous directory of a local FTP server If you do not have a local FTP server contact your system administrator to set one up Upgrade using SCM Serial Configuration Manager The SCM method of upgrading is used when the Blue Heat Net Sync d...

Страница 48: ...lect Usage Data Bus Width Address Range Cycle Termination CS0 This chip select is used to boot the CPU from the Flash The Flash is 8M Byte in size 16 bits 0xFE00 0000 0xFE80 0000 8 Mbytes Internal WS logic 5 wait states CS1 Used to select the IUSCs and the internal PLD registers 16 bits 0x4000 0000 0x4000 2000 8 kbytes External TA signal CS2 Dual Ported RAM 32k Bytes total size 16 bits 0x8000 0000...

Страница 49: ...Bit s Direction Usage PA0 PA4 PA6 Undefined Undefined For future expansion or debugging purposes Available on debug header P11 on page 8 of Schematic PA5 Output CPU Status LED 1 LED Off 0 LED On PA8 PA11 Input PCB ID Should be 0x4 for BHN Sync 4 Port PA13 Input Pushbutton input 1 not pushed 0 pushed PA14 Output Software forced hardware reset 1 Not reset When setting up this GPIO be sure to set por...

Страница 50: ... devices A11 A10 A9 IUSC selected Function Notes 0 0 0 0 Register Read Write 0 0 1 0 Interrupt Acknowledge Write not allowed 1 0 1 0 1 Register Read Write 0 1 1 1 Interrupt Acknowledge Write not allowed 1 1 0 0 2 Register Read Write 1 0 1 2 Interrupt Acknowledge Write not allowed 1 1 1 0 3 Register Read Write 1 1 1 3 Interrupt Acknowledge Write not allowed 1 1 A write to these addresses are ignore...

Страница 51: ...d write only 1 0 0 Port 3 Line I F control 16 bit read write only 1 0 1 Port 4 Line I F control 16 bit read write only 1 1 0 Control 16 bit read write only 1 1 1 Status 16 bit read only A 1 Is used to select the 16 bit portions of the Real Time Clock register A 0 Is not used PLD Memory Map Table Address Offset in hex Area item Accessed Register Accessed Notes IUSC Area IUSC 0 000 IUSC 0 Sreg 1 CCA...

Страница 52: ...iases of addresses 00 3F 080 09F IUSC Data FIFO s 32 bytes RDR TDR 16 bit Serial Data transfers ONLY Writes go to the Transmitter FIFO Reads come from the Receiver FIFO useful for block data movements 0A0 0FE Aliases of 080 9F 100 IUSC 0 Dreg 2 DCAR 102 IUSC 0 Dreg TDMR 104 Reserved do not access 106 IUSC 0 Dreg DCR 108 IUSC 0 Dreg DACR 10A 111 Reserved do not access 112 IUSC 0 Dreg BDCR 114 IUSC ...

Страница 53: ...IUSC 2 As Above Same registers as addresses 000 1FF A00 IUSC 2 Interrupt Acknowledge read only A02 BFF IUSC 2 Aliases of A00 IUSC 3 C00 DFF IUSC 3 As Above Same registers as addresses 000 1FF E00 IUSC 3 Interrupt Acknowledge read only E02 FFF IUSC 3 Aliases of E00 PLD Area See PLD Registers for details 1000 RTCU Real Time Clock Upper 1002 RTCL Real Time Clock Lower 1004 LEDC LED Control 1006 Alias...

Страница 54: ...or by disabling the interrupt There is a dedicated interrupt signal to the Coldfire for the RTC interrupt SE Seconds Pulse Edge Select Selects the edge of the Seconds Pulse which causes the RTC increment 0 falling 1 rising EXT External Time Base Select 0 Internal Timebase 1 Hz 1 External Timebase ME Minute Edge select Selects the edge of the Minute Pulse which causes the RTC Seconds counter to be ...

Страница 55: ...ode is selected the 42W and DC bits settings can be changed but are ignored Triggered Gated Transmission Control Bits CTSM and FSM FSM CTSM 1 CTSM 0 FSYNC pin on IUSC CTS pin on IUSC X 0 0 Driven from Line Interface CTS signal 0 X X Driven directly from Trigger input signal inverted 0 0 1 CTS pulsed low for 15 clock cycles 1 as follows If CTSC 0 clocked by Transmitter clock If CTSC 1 clocked by PL...

Страница 56: ... selects Interrupt 2 Where p is the port number 0to3 Interrupt Information All the IUSC interrupts are gated together and are presented on Coldfire External Interrupt pin 1 or pin 2 as selected by the IM bits All other interrupts only the Real Time Clock at this time are presented to the Coldfire External Interrupt pin 3 For Future Use X Reserved for future use Set to zero for Writes zero on Reads...

Страница 57: ...Connect Tech Blue Heat Net Sync User Manual Revision 0 01 57 System Block Diagrams ...

Страница 58: ...Connect Tech Blue Heat Net Sync User Manual 58 Revision 0 03 ...

Страница 59: ... txclk async_div Required r txclk dpll_div Optional 2 Optional 2 Optional 2 Optional 2 r txclk ctr_div Optional 3 Optional 3 Optional 3 Optional 3 Optional 3 r txclk enc_dec Required 1 Required Required Required Required r txclk clk_tree A Required Required Required Required Required r txclk clk_tree B Optional 4 Optional 4 Optional 4 Optional 4 r txclk clk_tree C Optional 5 Optional 5 Optional 5 ...

Страница 60: ...ional 6 Optional 6 Optional 6 tx_trig_gate Required Required rx_gate Required Required Required 1 Must be NRZ or NRZ_INV Optional 1 Needed if a clocking source feeds either of the Baud Rate Generators If the Receiver or Transmitter are clocked directly from certain Line Interface signals RxC or TxC setup as inputs and those Interface signals are setup as outputs then the indicated parameters are r...

Страница 61: ...ser Manual Revision 0 01 61 IUSC Clocking Logic The following diagram was scanned from the IUSC manual page 4 3 and corrections have been made Do not use the diagram from the IUSC manual use the corrected version we have provided below ...

Страница 62: ... 2 5A power input using a DC barrel or Phoenix screw terminal connector Rev B models 5V 2 5A to 26V 450mA power input using a DC barrel or Phoenix screw terminal connector Connectors Serial I O DB25 Female Auxiliary I O DB9 Female DC Power Standard DC Power connector or Phoenix screw terminal Ethernet RJ45 Dimensions Blue Heat Net Sync Length 133 cm 5 24 inches Width 244 cm 9 61 inches Height 43 c...

Страница 63: ...figurable option it can either be turned on or the user can set a fixed IP on the unit HTTP HyperText Transfer Protocol a standardized Protocol that Web Browsers use to connect to web pages It is used to provide web based configuration tools on the Blue Heat Net IP Internet Protocol a common addressing scheme for modern networks Used in conjunction with TCP to form TCP IP see below RARP Reverse Ad...

Страница 64: ...2 RXC V 35 4 V 11 2 V 28 V 11 2 V 11 2 15 TXC NC NC V 28 NC NC 12 RX_SYNC_OUT 6 V 28 NC V 28 NC NC 22 RI RI V 28 V 10 V 28 V 10 Hi Z 18 TX_TRIGGER 7 7 7 7 7 7 1 SR SR SR SR SR SR 1 120 ohm resistor applied between the and signals 2 120 ohm resistor applied between the and signals when the signal is an input 3 This signal can be programmed to be a input or an output 4 V 35 Termination Network is ap...

Страница 65: ...Electrical properties for External Reference clock input 1 10 Vpp AC sine wave 3 3 10Vpp square wave 10 20MHz Frequency range Capacitive coupled input Must be referenced to GND pin TTL compatible For example 0 3 3V or 0 5V will work 3 Electrical properties 3 3 10 Vpp pulse Minimum pulse width is 100ns seconds Capacitive coupled input Must be referenced to GND pin TTL compatible For example 0 3 3V ...

Страница 66: ...Using V 11 RS422 RS485 Line Modes When wiring multi drop RS 485 networks it is necessary to wire the devices in a Daisy Chain they must not be wired with a Star topology see diagram Rack Mount Option Blue Heat Net Sync can be rack mounted using the option rack mount kit part number MSG029 ...

Страница 67: ... Server IP address 0 0 0 0 used for firmware downloads Domain Name blueheat net Host Name BHNssssssss where ssssssss is the BHN serial number TCP Port 49152 0xC000 DNS IP 0 0 0 0 Boot Settings Default enabled Boot from Flash Default disabled use BOOTP use TFTP Delay 30 seconds SCM Operation Settings Password password Password Prompting enabled Loader Filename BHNloader_vvv gz where vvv is the vers...

Страница 68: ...gateway is 198 182 196 2 The subnet mask is 255 255 255 0 Using SCM Log onto the Blue Heat Net Sync There is no login necessary if using SCM The default password for the SCM is password Enter net net 198 182 196 0 This will set 198 182 196 0 to the server gateway and the unit s IP in one step Enter net my_ip 15 This will set the unit s IP to 198 182 196 15 Enter net server_ip 1 This will set the s...

Страница 69: ...equence of software execution occurs The Booter runs from flash memory first Its job is to perform the following Setup the embedded processor Validate at least one of the redundant Loaders via a CRC check Load a validated Loader into RAM memory Run the Loader If the Booter discovers that both Loader programs are defective erased or faulty CRC calculation an error code is displayed on the LEDs of t...

Страница 70: ... Bootp Enabled Y Y N Obtain boot information from Bootp Server Decompress OK N Server Responds Update CDS RAM copy Information filename IP address Y TFTP Enabled N N Attempt TFTP Download Y Start Enter SCM Success All Boot Modes Disabled N Y Display Error on LEDs Decompress Downloaded uClinux into SDRAM Decompress OK Y N Run uClinux Y Y N N Y Boot Port Personality ...

Страница 71: ...munication the electrical interface is held in the idle position between characters also referred to as mark A change in signal level known as space level indicates the start of transmission of a character The receiver recognizes this change as a start bit Once the start bit has been sent the transmitter sends the actual data bits In typical asynchronous communications there may be 5 6 7 or 8 data...

Страница 72: ...le suppliers You can usually operate with cable lengths of up to 100 feet 30 m at baud rates up to 115 2 Kbps using low capacitance cable For higher baud rates such as 230 4 Kbps and up we recommend keeping the cable lengths to within 25 feet 7 6 m The TIA EIA232 specification specifies two connectors the DB 25 and the DB 9 Each of these connectors has a standardized pinout Refer to the Pinouts se...

Страница 73: ...age can be as little as 200mV Differential can operate in three different modes a 4 wire full duplex interface 4 wire multi drop full duplex interface and a 2 wire half duplex interface A full duplex bi directional differential communication interface requires at least four wires two for transmit and two for receive A half duplex interface only requires two wires this provides a cost effective cab...

Страница 74: ...to a device at the same time Basic Wire Half Duplex Multi drop Connection In a 2 wire differntial network two to 32 devices are connected together Note that each receiver counts as a device or load In this multi drop mode of communication a master slave protocol must be enforced that is all communication is initiated by the master in this case a Blue Heat Net Sync The communication is half duplex ...

Страница 75: ... into the high impedance mode when not transmitting This feature is managed by the Blue Heat Net Sync and is fully transparent to your application For example in a multi drop network the differential transmitter is enabled prior to the master initiating transmission When transmission is complete the transmitter is placed in high impedance mode Each slave will receive that transmission from the mas...

Страница 76: ...r example 9600 baud or less However differential networks are transmission lines and can suffer from the electrical effects of ringing or undershoot and overshoot all of which can cause data errors especially at higher baud rates like 115 2 Kbps Termination resistors should always be installed at the extreme ends of the network as close to the differential transceiver circuits as possible as outli...

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