COM-5003 TCP-IP / USB Gateway
Contents
1. Ld CLK_OUT 6 e 0000000000000000 O SAMPLE_CLK_OUT DATA_OUT GND SAMPLE_CLK_OUT_REQ GND GND eeoeeoeeoeeneonee do 0 M amp C TX M amp C RX GND 606070 60600 oz oz IJO Compatibility List not an exhaustive list Input Output COM 1202 COM 1402 PSK QAM APSK modem PSK QAM APSK modulator COM 1418 DSSS COM 1019 DSSS Demodulator Modulator COM 1027 FSK MSK COM 1028 demodulator FSK MSK GFSK GMSK modulator COM 1009A Viterbi COM 1010 Convolutional decoder K 7 encoder COM 8002 Data COM 8001 Arbitrary acquisition module Waveform Generator COM 7002 Turbo code encoder decoder COM 1200 1300 1400 FPGA development platforms COM 1600 1500 FPGA ARM development platforms Configuration Management This specification is to be used in conjunction with VHDL software revision 8 ComBlock Ordering Information COM 5003 TCP IP USB Gateway MSS e 18221 A Flower Hill Way e Gaithersburg Maryland 20879 e U S A Telephone 240 631 1111 Facsimile 240 631 1676 E mail sales comblock com 98 pin to 40 pin adapters to interface with other Comblocks are supplied free of charge Please let us know about your interface requirements at the time of order 172. Send and receive data int bytesSent int bytesRecv SOCKET ERROR char sendbuf 32 Client Sending data char recvbuf 32 bytesSent send m_socket sendbuf strlen sendbuf 0 printf Bytes Sent ld n bytesSent while bytesRecv SOCKET ERROR bytesRecv recv m_socket recvbuf 32 0 if bytesRecv bytesRecv WSAECONNRESET printf Connection Closed n break if bytesRecv lt 0 return printf Bytes Recv ld n bytesRecv return 12 USB Interface USB Throughput Benchmarks The COM 5003 is capable of a sustained average throughput of 85 Mbits s over USB 2 0 In most cases the sustained throughput is limited by the host computer and the application s running on the host computer Client Programming USB 2 0 Software to help developers create USB high speed communications between the COM 5003 and a host PC is provided The USB 2 0 software package includes the following e Windows device driver for XP 2000 Me sys inf files e Java API dll and application sample code e C C application sample code The USB 2 0 software package is available in the ComBlock CD and can also be downloaded from ComBlock com download usb20 zip The user manual is available at ComBlock com download USB20_UserManual pdf PC Operating System PC Hardware USB Blue supplied hardw
3. click the Ef Settings button to display the Settings window shown below ComBlock Control Center File Operations Functions Help awa J i co a COMS003 TCP IP USB GATEWA TCP IP USB GATEWAY Basic Settings P address fra 76 4 rao Input Format 8 bit wide from J5 x Output Format 1 bit wide HDLC Disabled Apply Ok Advanced Cancel Configuration Advanced Alternatively users can access the full set of configuration features by specifying 8 bit control registers as listed below These control registers can be set manually through the ComBlock Control Center or by software using the ComBlock API see www comblock com download M amp C_reference pdf All control registers are read write Undefined control registers or register bits are for backward software compatibility and or future use They are ignored in the current firmware version Parameters Configuration enable Output selection receive stream applicable only when 1 bit input serial format is selected above 0 no 1 yes REG20 bit 7 00000 J8 connector is disabled 00001 1 bit serial output to J8 01000 8 bit parallel output to J8 10001 1 bit serial output to J5 bi directional I O 11111 special case 1 bit serial output to COM 7001 FEC encoder through J8 REG21 bits 4 0 IP address 4 byte IP address Example 0x AC 10 01 80 designates address 172 16 1 128 The new
4. control registers REG21 and REG22 Serial HDLC format This section provides details as to the serial HDLC format used on the synchronous serial link It is intended for developers and can be skipped by most users 1 byte 1 byte variable length 2bytes 1 byte opening CRC16 closing flag flag Data is encapsulated within variable length frames starting and ending with a 0x7E flag A two byte CRC check can be used to verify if the frame is error free The information field always contain an integer number of bytes The most significant bit is transmitted first The maximal frame length before accounting for bit stuffing is 1024 bytes of information plus 5 bytes of overhead The following bit stuffing mechanism is used on the transmit side for all fields except the opening and closing flags a 0 is inserted after five consecutive 1 s The address field is used to indicate the type of data conveyed within 01 data from IP port 1024 02 data from IP port 1026 Loop Back A loop back mode is provided for system level test purposes Transmitted data are looped back into the 1 bit serial input The nominal input pins are disabled However the nominal output pins are enabled Be sure to configure the output format as 1 bit serial with HDLC The loopback test mode can be used in conjunction with USB 1 channel and TCP IP 2 channels ComBlock Transmitter Assembly TCP IP connection IP Port 1024
5. gt Transmit Stream 1 Multiplexing amp Flow Control TCP IP connection IP Port 1026 Transmit Stream 2 Internet Intranet ComBlock Receiver Assembly ComBlock Assembly Trigger Pulse Users can remotely generate a short 25ns pulse to trigger external devices such as the COM 8001 arbitrary waveform generator The EXT_TRIGGER_OUT pulse is generated on pin J8 B6 upon sending control register REG22 with bit 1 set to 1 Recovery The COM 5003 is protected against corruption by an invalid FPGA configuration file or an invalid user configuration To recover from such occurrence connect the BOOT pin to the nearby ground pin using a jumper and power up the COM 9 5003 Remove the jumper after 1 second The COM 5003 will be automatically configured with a boot configuration which restores both USB and LAN TCP IP communications This boot file is un erasable Once this is done the user can safely restore the user configuration and or re load a valid FPGA configuration file into flash memory using the ComBlock Control Center TCP IP Interface IP Ports While configured in option B the COM 5003 acts as a TCP IP server As such it opens the following sockets in listening mode e Port 1024 transmit and receive data stream 1 e Port 1026 transmit and receive data stream 2 e Port 1028 monitoring and control port In addition the COM 5003 opens port 1029 as a UDP port f
6. input elastic buffer LVTTL 0 3 3V Signal is pulled down Initial Configuration The static IP address must first be configured over USB or through adjacent ComBlocks This network setting is saved in non volatile memory Once the correct network setting is configured the Comblock Control Center and this ComBlock assembly can communicate over the intranet or internet Configuration An entire ComBlock assembly comprising several ComBlock modules can be monitored and controlled centrally over a single connection with a host computer Connection types include built in types e TCP IP LAN e USB or connections via adjacent ComBlocks e USB TCP IP LAN Asynchronous serial DB9 PC Card CardBus PCMCIA The module configuration is stored in non volatile memory Configuration Basic The easiest way to configure the COM 5003 is to use the ComBlock Control Center software supplied with the module on CD Start the ComBlock Control Center click on the Communication parameters setup button pi and select USB or LAN IP as the primary communication channel In the latter case enter the COM 5003 static IP address Communication Setup Com Port O LAN IP IP address 172 16 1 130 Ping Test USB O CardBus O Cancel Then detect the ComBlock module s by clicking the A Detect button next click to highlight the COM 5003 module to be configured next
7. is important to be able to prevent changes while reading a multi byte parameter The monitoring data is latched upon reading register 0 Therefore register Oshould always be read first Test Points Test points are provided for easy access byan oscilloscope probe The main focus of these test points is to help monitor proper flow control operation Test Definition Point TP 1 TCP IP connection on port 1024 stream 1 1 connected 0 otherwise TP 2 TCP IP connection on port 1026 stream 2 1 connected 0 otherwise TP 3 TCP IP connection on port 1028 Monitoring amp Control 1 connected 0 otherwise TP 4 Stream HDLC transmit elastic buffer empty 1 empty 0 otherwise EPS Stream 2 HDLC transmit elastic buffer empty 1 empty 0 otherwise TP 6 Stream 1 HDLC receive elastic buffer 3 4 full 1 full 0 otherwise TP 7 Stream 2 HDLC receive elastic buffer 3 4 full 1 full 0 otherwise TP 8 HDLC flag 7E detected at input TP 9 CRC error detected on channel 1 HDLC frame 1 error detected at end of frame 0 no error TP 10 CRC error detected on channel 2 HDLC frame 1 error detected at end of frame 0 no error INIT Internal processing clock divided by 8 5 MHz square wave DONE 1 when the FPGA is loaded with a valid mcs configuration file typically 0 4 seconds after power up Operation Concept The COM 5003 converts a TCP IP socke
8. Com Block COM 5003 Key Features Generic gateway for LAN TCP IP USB and LVTTL clock synchronous interfaces Provides ComBlock assemblies with standard TCP IP network connectivity and direct USB connection to host computer for both high speed payload data transfer and monitoring and control TCP IP interface o Role TCP IP server Awaits remote client s connection o Supports 3 bidirectional connections o Maximum sustained throughput 53 Mbits s 100Base Tx Actual speed depends on host computer o Standard 100Base Tx 10Base T RJ 45 connector Autonegotiation or manual settings 10 100 Mbit s USB 2 0 interface o Role USB client o Supports 2 bidirectional connections o Maximum sustained throughput 85 Mbits s USB 2 0 High Speed Actual speed depends on host computer Serial HDLC for interface between byte wise asynchronous connections USB TCP IP and bit serial fixed data rate connections Support for two virtual channels when using TCP IP 16Kbits Elastic buffering and flow control on each transmit and receive link Single 5V supply Standard 40 pin 2mm dual row connectors right left TCP IP USB GATEWAY USB 2 0 COM 5003 SYNCHRONOUS LVTLL SYNCHRONOUS LVTLL LAN TCP IP For the latest data sheet please refer to the ComBlock web site www comblock com download com5003 pdf These specifications are subject to change without notice For an up to date list of ComBlock modules p
9. address becomes effective immediately no need to reset the ComBlock REGO MSB REGI REG2 REG3 LSB Bypass scrambling V 34 scrambling of the bit serial stream is implemented after HDLC encoding This control is ineffective when HDLC is disabled 0 scrambling enabled 1 bypass the scrambling stage REG21 bit 6 Reserved Input selection REG4 19 Reserved for other network configurations No need to write any data 00000 J5 connector is disabled 00001 1 bit serial input from J5 01000 8 bit parallel input from J5 10001 1 bit serial input from J8 connector bi directional I O 11101 test mode loopback for 1 bit serial HDLC encoded stream J5 input is disabled 11110 test mode Internally generated 8 bit wide periodic counting sequence 0 255 as input J5 input is disabled Useful in testing the throughput of the TCP IP or USB data link REG20 bits 4 0 Bypass descrambling V 34 descrambling of the bit serial stream is implemented prior to HDLC decoding This command is ineffective then HDLC decoding is disabled 0 descrambling enabled 1 bypass the descrambling REG20 bit 6 Transmit HDLC enable COM 8001 external trigger Perform HDLC encoding on 1 bit serial receive stream applicable only when 1 bit output serial format is selected above When no data is available from the selected source s the HDLC engine sends empty frames 7E 7E Use HDLC encoding to multi
10. are Green supplied ready to use software Yellow source code examples Troubleshooting LAN problems Quick checklist 1 is the LAN connection through a Hub or directly to the host PC In the former case use a straight LAN cable in the latter case use a cross over cable 2 Make sure the 5V power is applied to both submodules not just the larger one 3 The LAN adapter the one with the RJ 45 connector should be plugged in the larger module through the J9 bottom connector never through J5 or J8 4 The DONE test point should be high 2 5V otherwise the FPGA is not properly configured If not please contact us for assistance 5 Link LED should be ON when the LAN cable is plugged in Likewise a LED at the Hub or PC should be ON If not the cable could be bad or see points 1 4 above 6 Did you assign a static IP address to the COM 5003 Please see the Initial configuration section on page 4 7 Do not assign the same IP address for the COM 5003 and the host computer 8 Is the COM 5003 IP address consistent with the PC address In general the first 3 numbers of the IP address must match 9 If ping does not work see points 5 8 above 13 Timing Clocks The clock distribution scheme embodied in the COM 5003 is illustrated below CLK_IN CLK_OUT 40 MHz SAMPLE_CLK_IN SAMPLE CLKOUT DATA IN denotes edge trigger signal Baseline clock architecture Green 80 MHz pr
11. download com_5002schematics zip for the LAN adapter Pinout USB Connector J2 USB type B receptacle LAN Connector J1 The RJ 45 Jack is wired as a standard PC network interface card Connection to a LAN Hub is over a straight through cable 1 8 1 Txt 2 Tx 3 Rx 6 Rx RJ 45 Jack Connector J5 There are several possible connector configurations depending on the application a 1 bit wide input from another ComBlock COM 1009 COM 7001 COM 1202 COM 1418 COM 1027 etc CLK_IN DATA_IN SAMPLE_CLK_IN_REQ M amp C RX 19 Lv eeeedeaeenedd saa D e000 00 0000000000000 O e0 00000 A oz SAMPLE_CLK_IN GND GND GND M amp C TX GND b 8 bit wide input from another ComBlock COM 8002 etc CLK_IN DATA IN O DATA ING DATA_IN 4 DATA_IN 6 DATA ING SAMPLE_CLK_IN_REQ M amp C RX 19 Lv 6606600606060606 pe6060606066060600 SAMPLE_CLK_IN DATA_IN 1 DATA_IN 3 DATA ING GND GND GND M amp C TX GND 15 c Bi directional connection input and output through a single gt Ww au CLK_IN DATA_IN 66060600 SAMPLE_CLK_IN_REQ CLK_OUT DATA_OUT 6660666606060060 6660060606060600 p SAMPLE_CLK_OUT_REQ M amp C RX RESERVED RESERVED 66600 a oz Connector J8 There are several possible conn
12. e USB Client is disabled The TCP IP server supports three simultaneous connections 2 high speed bi directional data channels and one bi directional monitoring and control channel The user can select several formats 8 bit parallel mode 1 bit serial with HDLC 1 bit serial without HDLC at the input and output connectors through control registers Network TCP IP Server 8 bit bit serial parallel SYNCHRONOUS to 8 bit to bit SYNCHRONOUS LVTLL parallel serial LVTLL J8 serial Option B data or Format Conversion Parallel to serial conversion occurs at the output when a 8 bit byte received over the TCP IP or USB link is converted to one bit serial when so configured by the user The key rule for parallel to serial conversion is that the most significant bit MSb is transmitted first Likewise in the serial to parallel conversion which may be implemented at the input the first received bit is placed at the MSb position in the byte Serial HDLC A bit serial HDLC format can be used to convey data over a synchronous serial link such as a wireless or satellite link The HDLC objective is three fold a Tell the receiver side when no information is available for transmission b Implement multiple virtual channels over a common physical link c Recover the original bit to byte alignment of the original USB or TCP IP connection at the receiving end HDLC can be enabled or disabled under user control See
13. e next module LVTTL 0 3 3V Signal is pulled up CLK OUT LVTTL 0 3 3V 40 MHz output reference clock from internal oscillator Input Signals Definition DATA IN 7 0 Input signal The input width is can be 1 bit or 8 bit under user control See control register REG20 Signals are pulled down LVTTL 0 3 3V EXT_TRIGGER_OUT 25 ns pulse triggered by software command See command register REG22 Helpful in triggering events such as COM 8001 start of data acquisition LVTTL 0 SAMPLE CLK IN Input signal sampling clock One CLK_IN wide pulse Read the input signal at the rising edge of CLK_IN when SAMPLE CLK _IN 1 Samples can be consecutive For example SAMPLE CLK IN can be fixed at 1 to indicate that new input samples are provided once per CLK_IN clock period Signal is pulled up LVTTL 0 3 3V 3 3V Other Definition Interfaces LAN 4 wire 10Base T 100Base TX RJ45 connector NIC wiring Use standard category 5 cable for connection to a Hub Use crossover cable for connection to a host computer USB USB 2 0 Use USB 2 0 approved cable for connection to a host computer Maximum recommended cable length is 3 Power 4 75 5 25VDC Terminal block Power Interface consumption is typically 450mA SAMPLE CLK IN REQ Input flow control signal output 1 indicates that the COM 5003 is ready to accept DATA IN input samples into its
14. e rising edge of CLK_OUT LEDs 2 LEDs located close to the LAN RJ 45 jack provide summary information as to the LAN Link and activity 14 Mechanical Interface type B USB receptacle left corner right corner R 2 040 3 160 Board Corner 1 560 3 160 be 3 000 3 000 Mounting hole _ bo 5VDC Power el 0 160 2 840 Terminal Q USB N Block 90 deg E Mounting hole J2 2 840 2 840 A1 pin 0 100 2 250 GND PNV yy za J3 Bz Test points J6 onoono HK weeny A1 pin 2 900 2 250 Analog Digital 1 0 J5 J8 Digital Outputs 2 rows x 20 pin NTa 2 rows x 20 pin female 90 deg AR GOOT TEN male 90 deg Top view GND rad z SS 88 Mounting hole 0 160 0 160 J9 ank A B20 B1 5 Wantah A20 AL C lounting hole Board Corner as ri 0 000 0 000 2 840 0 160 a A20 A1 o Mounting hole A7 a Bi 2 840 0 390 0 160 0 390 J2 Top view 5V 5VDC Power gt Terminal U2 we Block 90 deg GND 5 2 JA aa 3 wu Mounting hole Mounting hole o al 2 840 2 070 0 160 2 070 gt kah sa 7 RSAB Co m n m orner 1 420 2 230 AN 2 050 2 230 80001 2 230 Connector Mounting hole diameter 0 125 A1 pin height 0 039 Maximum height 1 100 Schematics The board schematics are available on line at ComBlock com download com_1400schematics zip for the main board and ComBlock com
15. ector configurations connector SAMPLE_CLK_IN GND GND SAMPLE_CLK_OUT GND M amp C TX RESERVED GND depending on the application a 1 bit wide output to another ComBlock COM 1010 COM 1402 COM 1019 COM 1028 etc CLK_OUT DATA_OUT SAMPLE_CLK_OUT_REQ M amp C TX LW 19 SAMPLE_CLK_OUT 6 e GND EXT_TRIGGER_OUT A 0000 e ee e 6 4 GND e DOO GND e M amp C RX 660000600006 6606060 GND ka 0z b 8 bit wide output to another ComBlock COM 8001 etc zB CLK_OUT SAMPLE_CLK_OUT DATA_OUT 0 DATA_OUT 1 DATA_OUT 2 DATA_OUT 3 DATA_OUT 4 DATA_OUT 5 DATA_OUT 6 GND DATA_OUT 7 EXT_TRIGGER_OUT SAMPLE_CLK_OUT REG Ome GND ee e 0 0 ee GND ee ee M amp C TX M amp C RX o GND ra 0 0 c Bi directional connection input and output through a single connector gt Ww a CLK_OUT DATA_OUT 6 oe SAMPLE_CLK_OUT_REQ 0 oe CLK_IN DATA_IN K e o o e SAMPLE_CLK_IN_REQ M amp C TX RESERVED RESERVED ra oOo oO SAMPLE_CLK_OUT GND EXT_TRIGGER_OUT GND SAMPLE_CLK_IN GND M amp C RX RESERVED GND 16 d Special case 1 bit serial output to a COM 7001 turbo code encoder
16. k Empty frames are discarded during HDLC decoding Note The COM 5003 differs from a conventional router in several ways a the TCP and IP protocols are decoded on the transmit side before transmission Only See also COM 5004 IP Router the data contents is transmitted No network information is sent b Propagation delay over the synchronous link does not affect the TCP IP throughput as the TCP IP protocol is used only locally on the transmit and receive sides c The COM 5003 is perfectly suited for use in a broadcast network USB or TCP IP 1 or 2 byte wise virtual channels USB or TCP IP 1 or 2 byte wise virtual channels COM 5003 COM 5003 TCP IP Synchronous Synchronous TCP IP USB Modulator Demodulator USB Gateway Gateway bit serial fixed data rate link TCP IP connection IP Port 1024 gt Transmit Stream 1 HDLC ComBlock Multiplexing gt Transmitter amp Flow Control Assembly TCP IP connection IP Port 1026 gt Transmit Stream 2 Internet Intranet ComBlock Receiver Assembly ComBlock Assembly LAN TCP IP example COM 5003 B supports three simultaneous connections USB connection Transmit Stream 1 ComBlock gt Transmitter Assembly HDLC Multiplexing amp Flow Control USB 2 0 Cable ComBlock Receiver Assembly ComBlock Assembly USB 2 0 example COM 5003 A supports two sim
17. lease refer to www comblock com product_list htm MSS e 18221 A Flower Hill Way Gaithersburg Maryland 20879 U S A Telephone 240 631 1111 Facsimile 240 631 1676 www ComBlock com MSS 2006 2010 Issued 11 30 2010 Typical Applications Arbitrary Waveform Signal Generation Files representing binary or analog sampled signals can be uploaded through the COM 5003 to the COM 8001 SDRAM memory over the network then played back at the selected speed Various ComBlocks can be used to generate analog signals at baseband 70 MHz intermediate frequency or radio frequency USB or TCP IP Baseband COM 5003 COM 8001 COM 2001 TCP IP 256MB 1GB Dual USB DRAM 10 bit D A Gateway Storage Converter imaginary Arbitrary waveform generator analog baseband example LAN USB to Synchronous Link Interface The COM 5003 can be used as a bridge between a variable data rate asynchronous connection such as TCP IP or USB and a fixed data rate synchronous connection like satellite wireless or cable link An HDLC protocol is used over the synchronous link to multiplex multiple data streams over a single link in effect creating virtual channels In this module two virtual channels are implemented in each direction to convey stream and stream 2 Stream is given priority over stream 2 Whenever no data is available for transmission the HDLC encoder generates empty frames to fill the synchronous data lin
18. ngs forever of length 470 bytes to address 172 16 1 128 UDP IP Port 1029 is open as a UDP receive only port This port serves a single purpose being able to reset all TCP IP connections gracefully This feature is intended to remedy a common practical problem it is a common occurrence for one side of a TCP IP connection to end abnormally without the other side knowing that the connection is broken for example when a server crashes In this case new connections cannot be established without first closing the previous ones The problem is particularly acute when the COM 5003 is at a remote location 10 The command 001RST lt CR gt lt LF gt sent as a UDP packet to this port will reset all TCP IP connections within the COM 5003 TCP IP connections can also be cleared remotely from the ComBlock Control Center as illustrated below ComBlock Control Center File Operations Functions Help oy Communication Setup Ctrl S x Detect ComBlocks Ctrl D TCP Reset TCP IP Connection Reset TCP IP Connection Enter the IP address of the ComBlock that you would like to reset 172 16 1 130 Cancel Client Programming TCP IP This section is intended to help designers who want to design their own client application It can be skipped by users of ready to use applications such as Hyperterminal ComBlock Control Center etc In network terminology the COM 5003 is a server It awaits connection es
19. ocessing zone Light blue user defined input clock Dark blue 40 MHz output clock Input The input signals at the J5 connector are synchronous with the CLK_IN clock at J5 A1 This clock can be up to 40 MHz A 16Kbit dual port RAM elastic buffer is used at the boundary between inputs and internal processing area Thus the input clock frequency can be independent from the internal processing clock frequency Output The 40 MHz output clock CLK_OUT is locked to the internal USB PHY 60 MHz clock by means of a DLL CLK_OUT is not related in frequency to the external CLK_IN clock The output signals are synchronous with the rising edge of the 40 MHz reference clock CLK_OUT i e all signals are stable at the rising edge of the reference clock CLK_ OUT Internal processing The core signal processing performed within the FPGA is synchronous with the 80 MHz processing clock CLK_P The processing clock is derived from the USB PHY 60 MHz oscillator CLK_P is not related to the external CLK_IN clock Input Input data is read at the rising edge of CLK_IN CLK_IN SAMPLE_CLK_IN y N DATA IN R l N Best time to generate data at the source is at the falling edge of CLK_IN Output Output data is generated at the falling edge of CLK_OUT o CLK_OUT SAMPLE_CLK_OUT_v b DATA OUT Nan r Best time to read data is at th
20. or remote reset While configured in option A the COM 5003 acts as a TCP IP server for remote monitoring and control only port 1028 TCP IP Throughput Benchmarks The COM 5003 is capable of a sustained average throughput of 53 Mbits s over 100base Tx In most cases the sustained throughput is limited by the TCP IP client computer the application s running on the client computer and the network configuration as illustrated in the one way data transfer benchmarks below Throughput tests conditions Throughput 100MB average Client Intel Pentium 4 2 8 GHz running 53 Mbits s winsock based console application Direct cross over LAN cable No other application running COM 5003 configured as Auto Negotiation 100Base Tx connection Client AMD Sempron 3000 47 Mbits s Direct cross over LAN cable Client Intel Pentium 4 2 8 GHz over LAN 32 Mbits s through two LAN switches IP Protocols This module supports the following IP protocols Ping ARP TCP IP Power Up The LAN link is available typically 2 1 seconds after power up Ping The module responds to ping requests with size up to 470 bytes Ping can be used to check the module response over the LAN network Ping can be used at any time concurrently with other transmit and receive transactions For example on a Windows operating system open the Command prompt window and type ping t 1 470 172 16 1 128 to send pi
21. plex two streams on the synchronous physical link When HDLC is disabled the data source must be ready to fill the IP port 1024 or USB connection in order to avoid any underflow condition in the transmit elastic buffers 0 no HDLC 1 HDLC enabled REG21 bit 7 Special use Writing to REG22 with a 1 in bit 1 will generate a 1 CLK wide pulse on pin J8 B6 The main application is to trigger the COM 8001 file playback download There is no need to reset this bit to 0 prior to Receive HDLC Perform HDLC decoding on 1 bit serial Enabling the bit wise HDLC is strongly advised to preserve the bit to byte alignment information during bit serial transmission writing a 1 REG22 bit 1 10Base T 00 10Base T 100Base TX 01 100Base TX LAN selection 10 Auto negotiation Changes will take effect at the next power up REG22 bits 3 2 Half Full duplex Half duplex is a safe configuration which can be used with older networking equipment Full duplex 5 results in higher throughput but may be incompatible with unswitched hubs 0 half duplex 1 full duplex Changes will take effect at the next power up REG22 bit 4 Baseline configurations can be found at www comblock com tsbasic_settings htm and imported into the ComBlock assembly using the ComBlock Control Center File Import menu Monitoring Monitoring regis
22. t stream or a USB stream into a simple clock synchronous data stream and vice versa Using TCP IP On the transmit side the COM 5003 decodes the TCP IP protocol and extracts the data from the network client TCP IP and Network information and in particular routing information are not transmitted from one end to the other At the receiving end the network client must first connect to the COM 5003 to receive data The COM 5003 maintains the flow control information between the TCP IP socket and the input output interfaces For example if the COM 5003 is connected to a COM 1001 QPSK modulator configured for 1 Mbit s data throughput the network client i e data source will be asked for 1 Mbit s throughput over the TCP IP link Using USB USB and TCP IP can be used interchangeably and independently at the transmit end or receive end For example the user can select TCP IP on the transmit side while using USB on the receiving end The main functional difference is that the COM 5003 USB interface supports only one bi directional stream whereas the TCP IP interface supports two streams Connectivity As a gateway the COM 5003 interconnects TCP IP USB and clock synchronous LVTTL interfaces Some connections are configured by control registers see_configuration registers while others are configured by selecting an FPGA option as described below To select the A or B option please follow the three steps S
23. tablishment and connection termination under the initiation of clients It never initiate any connection establishment or termination An example of C language Winsock programming for Windows OS clients is shown below More information about Winsock programming can be found at http msdn microsoft com library default asp url 1 ibrary en us winsock winsock finished server and client co de asp Be sure to include a reference to the Winsock2 library WS2_32 lib in the project release and or debug settings 11 include lt stdio h gt include winsock2 h void main Initialize Winsock WSADATA wsaData int iResult WSAStartup MAKEWORD 2 2 amp wsaData if iResult NO ERROR printf Error at WSAStartup n Create a socket SOCKET m_socket m socket socket AF INET SOCK STREAM IPPROTO TCP ee E if m socket INVALID SOCKET printf Error at socket Sld n WSAGetLastError WSACleanup return Connect to a server sockaddr in clientService clientService sin family AF INET insert destination address below clientService sin addr s addr inet addr insert destination port below clientService sin port htons WM if connect m socket SOCKADDR amp clientService sizeof clientService SOCKET ERROR printf Failed to connect n WSACleanup return
24. tep 1 from the ComBlock Control Center graphical user interface enumerate the ComBlocks highlight the COM 5003 and open the personalities windows by clicking on the swiss army knife button Step 2 pull down the personalities index and select index 2 for option A or 3 for option B Step 3 push the Set Default button ComBlock Control Cen SPAT COM5003 TCP IP USB GATEWA 3 COM5003 TCP IP USB GATEWAY Personalities Index Personality Option Default Authorized Boot Prot 1 1400 B Yes No 2 5003 A Yes 3 5003 B D Yes No 4 0000 B Yes No 5 0000 B Yes 3 No 6 oooo B Yes No 7 0000 B Yes No Add Remove Modify Personality Index Personality Option Password 5003 f Set Default 2 Close It takes 0 4 seconds to switch between options under user control Option A Monitoring and Control is performed through either TCP IP IP port 1028 or USB at the user s discretion A single high speed bi directional data channel is supported through USB The user can select several formats 8 bit parallel mode 1 bit serial with HDLC 1 bit serial without HDLC at the input and output connectors through control registers USB 2 0 USB Client 8 bit bit serial parallel SYNCHRONOUS to 8 bit to bit SYNCHRONOUS LVTLL parallel serial LVTLL J8 serial serial HDLC decoder 1 ch Option A data path Option B All communications are established exclusively through the TCP IP server Th
25. ters are read only Parameters Monitoring TCP IP Monitors the TCP IP connections for all connection three ports supported 1 connected 0 otherwise SREGO bit 0 port 1024 data stream 1 SREGO bit 1 port 1026 data stream 2 SREGO bit 2 port 1028 M amp C HDLC 1 when an HDLC transmit elastic buffer transmit is empty 0 when data transmission is elastic pending buffers SREGO bit 3 stream 1 empty SREGO bit 4 stream 2 HDLC 1 when an HDLC receive elastic buffer receive is more than full 0 otherwise elastic SREGO bit 5 stream 1 buffer Ya SREGO bit 6 stream 2 full Number of Total number of payload data bytes transmitted received from LAN or USB and bytes USB forwarded to an external digital device or Lah excludes monitoring amp control messages includes all virtual data streams 32 bit byte count Counter rolls over when reaching OxFFFFFFFF SREGI bits 7 0 LSB SREG2 bits 15 8 SREG3 bits 23 16 SREG4 bits 31 24 MSB Number of Total number of payload data bytes received received from an external digital device bytes USB and forwarded to LAN USB excludes or LAN monitoring amp control messages includes all data virtual streams 32 bit byte count Counter rolls over when reaching OxFFFFFFFF SREGS bits 7 0 LSB SREG6 bits 15 8 SREG7 bits 23 16 SREG8 bits 31 24 MSB MAC address Unique 48 bit hardware address 802 3 In the form As the monitoring data is constantly changing it
26. ultaneous connections ComBlock Assembly Monitoring amp Control via LAN and or USB ComBlock assemblies can be remotely monitored and controlled by a host computer The COM 5003 extend the selection of communication types to include both TCP IP and USB ComBlock Control Center GUI COM 5003 TCP IP ComBlock or USB Assembly Gateway User Application When using TCP IP ComBlock assemblies can be controlled over an internet or intranet network USB s simple plug amp play direct connection to a host computer can be easier as no network configuration is needed Both USB and TCP IP are supported by the ComBlock Control Center graphical user interface so no programming is needed Several ComBlock assemblies can be monitored and controlled simultaneously from the same computer Interfaces CLK_IN Input reference clock for synchronous I O DATA_IN and SAMPLE CLK IN are read at the rising edge of CLK_IN Maximum frequency 40 MHz LVTTL 0 3 3V Output Signals Definition DATA_OUT 7 0 LVTTL 0 3 3V output signal The output width is can be 1 bit or 8 bit under user control See control register REG21 SAMPLE CLK OUT LVTTL 0 3 3V output signal sampling clock One CLK_OUT wide pulse Read the output signal at the rising edge of CLK_OUT when SAMPLE CLK OUT T SAMPLE_CLK_OUT_REQ Output flow control signal input 1 asks the COM 5003 to send DATA OUT output data to th
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