- ixp1200 - lists.cs.princeton.edu

StrongARM Core and Microengine Memory sharing
by tabrez rajani 25 Jan '05

25 Jan '05

Hello Everybody, I am working on a project in which I have Snort running on the core and the the microengines are used to classify the packets. Now depending on the type of packet , TCP,UDP,ICMP etc the microengines write to specific registers with certian information regarding the packet and also the entire packet buffer. The snort code running on the core will read this information and process the packet accordingly. I will really appreciate it if anybody could how to make the microengines communicate with the core and get them to share memory. Also, is there any way that I can classify the packets using microEngine C. I will not be using the ACE framework. Any pointers or feedback will be greatly appreciated. Regards, Tabrez SUNY-Binghamton. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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IXP1200 Evaluation platform - Cygmon
by Malathi Panyam 23 Jan '05

23 Jan '05

Hi, I have tried the following steps to boot IXP1200 Evaluation platform. a) on Hyperterminal, set boot mode to Flash util mode. b) close hyperterminal. c) go the win98 machine and activate futil.exe d) enter the flash.img e) select cygmon. f) power on restart the system. g) on the hyperterminal, i get cygmon boot h) on cygmon prompt, set bo boot parameters to do the tftp of zimage and ramdsk_img. i) it successfully comes out of tftp of zImage. j) But it hangs after the file transfer from host for ramdsk_img. Can anyone suggest why does the system hangs after ramdsk_img. Is there any mistake anywhere? I am working on IXP1200 Ethernet Evaluation system. Regards Malathi

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Re: need help
by nitin makhija 18 Jan '05

18 Jan '05

Hi, the way i have done this is i've a separate IXP1200 evaluation borad which i connect to teh windows2000 host system through PCI(com port) as werll as ethernet port (network), u can connect the target (IXP1200 board) with host(win2000) directly with a cross-over CAT5 cable or throgh normal procedure through ur network... both these connections are required becoz... 1. Com port is basically for initial configuration , say to set up target and host ip, ftp username and passwd. 2. ethernet port is required to download the vxworks image to the IXP1200 board through an FTP connection.. so u also need to setup an ftp server in host machine...where u slect the boot image of vxworks, so that that can b downloaded in the target.. hope this may help a bit... i'll try to search some files which cd. help u...but currently tht wd b in LAB, so will send u tommarow..probably... Btw where r u frm? which university....?? wht. kinda work is going on there,,,,and r intel personals supporting such work?? regards, Nitin Makhija On Tue, 18 Jan 2005 mahin jeyachandran wrote : >Hi, > >I am new to VxWorks and need your best help as possible. > >The problem is, I have installed the ENP2505 board ( Host and Target >are two seperate Windows 2000 machines, connected to each other by a >serial cable (COM1 Port)). The target board (ENP2505) is in the PCI >slot of the target Windows 2000 Machine. I did not connect the Target >board to network. I set the ENP2505 board mode of booting to VxWorks >Module. > >After the above setup, I opened Hyperterminal (COM1 Port) in Host >Machine. Then I powered ON the target system. Now I get some thing >like the following > >Init IXF440 MAC Addresses: succeeded. >booting.. VxWorks >Board Rev.: 00000000 >CPLD Rev.: 000000B4 >Value of Personality Register is 00000002 >BSP IXP Version: 1.3.141, built on Aug 6 2002, 11:25:30 >CPU ID: 6901C124 >CPU Speed: 233 MHz >Early serial debug initialized > >Init IXF440 MAC Addresses: succeeded. >booting.. VxWorks >Board Rev.: 00000000 >CPLD Rev.: 000000B4 >Value of Personality Register is 00000002 >BSP IXP Version: 1.3.141, built on Aug 6 2002, 11:25:30 >CPU ID: 6901C124 >CPU Speed: 233 MHz >Early serial debug initialized > >it goes on booting like this continuously. I don't know why !!?. If >any of you had the same problem pls let me know where I went wrong. >Also if possible kindly provide me with the initial seeting and >booting VxWorks. > >Also here are some observation.. >when I power on the target Windows 2000 Machine( the one that has >ENP2505 board in its PCI slot)... I notice the LEDs glowing in ENP >board , but there is no display in the MONITOR of the target Machine. > >I have Tornado, IXA SDK and ENP sdk.. >I installed tornado first, IXA and then ENP SDK in my Host Win 2000 >Machine... I also installed BSP for StrongArm in my Host system. > >Also if possible please provide me with reference materials if >possible... your help in appreciated. > >I know that I make a simple mistake always... but I culdn't figure out.. >Please help me. > >Expecting your reply. > >Thanks a lot for your help. >Regards, >Mahin. >_______________________________________________ >ixp1200 mailing list >ixp1200(a)lists.cs.princeton.edu >https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

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Problem booting VxWorks. Using ENP2505 Board.
by mahin jeyachandran 18 Jan '05

18 Jan '05

Hi, I am new to VxWorks and need your best help as possible. The problem is, I have installed the ENP2505 board ( Host and Target are two seperate Windows 2000 machines, connected to each other by a serial cable (COM1 Port)). The target board (ENP2505) is in the PCI slot of the target Windows 2000 Machine. I did not connect the Target board to network. I set the ENP2505 board mode of booting to VxWorks Module. After the above setup, I opened Hyperterminal (COM1 Port) in Host Machine. Then I powered ON the target system. Now I get some thing like the following Init IXF440 MAC Addresses: succeeded. booting.. VxWorks Board Rev.: 00000000 CPLD Rev.: 000000B4 Value of Personality Register is 00000002 BSP IXP Version: 1.3.141, built on Aug 6 2002, 11:25:30 CPU ID: 6901C124 CPU Speed: 233 MHz Early serial debug initialized Init IXF440 MAC Addresses: succeeded. booting.. VxWorks Board Rev.: 00000000 CPLD Rev.: 000000B4 Value of Personality Register is 00000002 BSP IXP Version: 1.3.141, built on Aug 6 2002, 11:25:30 CPU ID: 6901C124 CPU Speed: 233 MHz Early serial debug initialized it goes on booting like this continuously. I don't know why !!?. If any of you had the same problem pls let me know where I went wrong. Also if possible kindly provide me with the initial seeting and booting VxWorks. Also here are some observation.. when I power on the target Windows 2000 Machine( the one that has ENP2505 board in its PCI slot)... I notice the LEDs glowing in ENP board , but there is no display in the MONITOR of the target Machine. I have Tornado, IXA SDK and ENP sdk.. I installed tornado first, IXA and then ENP SDK in my Host Win 2000 Machine... I also installed BSP for StrongArm in my Host system. Also if possible please provide me with reference materials if possible... your help in appreciated. I know that I make a simple mistake always... but I culdn't figure out.. Please help me. Expecting your reply. Thanks a lot for your help. Regards, Mahin.

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Hw Debugging...+ Core Programming??
by nitin makhija 13 Jan '05

13 Jan '05

Hellow... i'm facing a problem while connecting to the Target, 1..Target is downloading VxWorks image correctly frm host...as seen from Ftp server log console. 2..Com port is running correctly. 3..able to launch target server from Tornado.. Problem:... Not able to run any Code in Hardware debugging mode... Error:....it's giving error while opening connection. can anybody have some idea why such a thing is happening.... also i have to start wd. StrongARM programming, so can anyone tell me any hints, or doc. or example code which can help me.....i wd. b really gr8ful.... even small hints can b useful... looking fwd. for replies.. Regards, Nitin Makhija M.Tech(CS) IIT-Kharagpur

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Re: IXP1200 software installation
by Ricardo Camarena Ramos 10 Jan '05

10 Jan '05

Hi, I know Intel don't expect to carry further enhancements on IXP 1200 family, maybe that's why you don´t find the SDK. However you can get from the companion CD of this book: JOHNSON, Eric. Et. Al. IXP 1200 Programming. Intel Press. About the installation of the environment I think you will have a little headache, but don't give up. I have collected some files that can be useful for you, Please look at: http://webdiee.cem.itesm.mx/web2/comunicaciones/proyectos/intel.htm#instala… The page is in spanish bout the majority of documents are in english. I also prepared a log when performed the installation, can be found at: http://webdiee.cem.itesm.mx/web2/comunicaciones/proyectos/IXP1200/LNX 2004-09 Installation log for Brivadeli card IXP1200 V3.txt Hope this helps.

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Re: [ixp1200] IXP1200 software installation
by nitin makhija 09 Jan '05

09 Jan '05

Hellow.. first thing u needde is a sdk(software development kit)...tht's the workbench where u can write ur programs for MicroEngine either in MicroCode or MicroEngineC.. u have to install this on the host processor, having windows XP or windows 2000.. Workbench has all the facilities for the simulation.... this u can get frm intel website...i exactly didn't know the url...search for it there.. then for moving on the the hw and core programming u need either a VxWorks or A embedded linux OS image to b downloaded on the Core processor.....i've just started the core part or rather tring to.... hope this can help a bit.. regards, Nitin Makhija On Sun, 09 Jan 2005 Malathi Panyam wrote : >Hi, > I have recently started working on IXP1200 processor. I am tryin to install software on Windows PC. (windows XP). >I need to know >a) What are the tools I need to install? Where do I get them from? >b) Are there any licences required? If so where do I get them from? >c) Microcode and microengine compilations do they need separate set of tools? > >I also would like to understand what software is needed for IXP1200 Evaluation platform. > >I am very new to this project. I will be glad if someone can guide me in establishing the necessary environment for compilation/simulation/debugging in software simulator and on eval platform. > >Regards >Malathi > >_______________________________________________ >ixp1200 mailing list >ixp1200(a)lists.cs.princeton.edu >https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

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IXP1200 software installation
by Malathi Panyam 08 Jan '05

08 Jan '05

Hi, I have recently started working on IXP1200 processor. I am tryin to install software on Windows PC. (windows XP). I need to know a) What are the tools I need to install? Where do I get them from? b) Are there any licences required? If so where do I get them from? c) Microcode and microengine compilations do they need separate set of tools? I also would like to understand what software is needed for IXP1200 Evaluation platform. I am very new to this project. I will be glad if someone can guide me in establishing the necessary environment for compilation/simulation/debugging in software simulator and on eval platform. Regards Malathi

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Core programming...
by nitin makhija 06 Jan '05

06 Jan '05

Hellow, My project is to design and implement a firewall on IXP1200. Can anyone help me out with the StrongARM core programming and the interaction between MicroEngines and StrongARM and StrongARM and the Host processor. Actually i have to start wd. this part and any hints wd. b helpful. Any documents, tutorials , example code or website links...anything can b gr8..... Thanxs in advance... Regards, Nitin Makhija M.tech(CS) IIT-kharagpur

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Debugging in Hardware mode
by nitin makhija 10 Dec '04

10 Dec '04

Hellow, Again struggling with the IXP1200 Hardware, Problem i'm facing is when i'm running any program in "hardware" as the debugging mode...it's giving an error that .." Error in Opening Connection to 10.5.19.164 (target IP)" not able to understand why? as everything else is working fine.... 1... below is a snap shot of VxWork Com port...one unusal thing i have noticed here...."0x7ffe64 (tRootTask): dc0 - Failed to read ethernet address NFS client support not included. " Snap shot of VxWorks Com1 Attached TCP/IP interface to eeE0. Attaching network interface lo0... done. Loading... 712620 + 14184 + 67968 Starting at 0x1000... BSP IXP Version: 1.3.141, built on Jun 5 2001, 19:18:11 CPU ID: 6901C123 CPU Speed: 200 MHz Early serial debug initialized muxDevLoad failed for device entry 0! Attached TCP/IP interface to eeE unit 0 Attaching network interface lo0... done. 0x7ffe64 (tRootTask): dc0 - Failed to read ethernet address NFS client support not included. VxWorks Copyright 1984-1998 Wind River Systems, Inc. CPU: Intel ixp1200eb - ARM IXP1200 VxWorks: 5.4 BSP version: 1.2/2 Creation date: Jun 5 2001 WDB: Ready. 2...FTP server is running fine...IXP kit is downloading the boot file (VxWorks correctly).. 3..Tonado server is launching correctly...below is snap shot of the log console.. tgtsvr (10.5.19.164@nitin): Fri Dec 10 11:21:27 2004 Wind River Systems Target Server: NT/Win95 version Connecting to target agent... succeeded. Attaching C++ interface... succeeded. Attaching coff OMF reader for ARM CPU family... succeeded. 4... Tornado shell is also opening correctly. can anyone help me out, as i'm struggling wd. this frm a v long time now....even a hint wd. b of gr8 help.... regards, Nitin

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microengine execution percentage
by Shweta Rao 08 Dec '04

08 Dec '04

Hi, I am using chapter 9 code for receive which runs on two microengines in my project.The execution statistics show that microengine 0 all four threads are underutilized with execution time 0.1% and with thread 0 0.1 % abort time.while microengine 1 threads show a good percentage. Can anyone explain why this happens.below is the switch statement used in the textbook code switch(thread_id()) { case 0: next_thread = 4; break; case 1: next_thread = 5; break; case 2: next_thread = 6; break; case 3: next_thread = 7; break; case 4: next_thread = 1; break; case 5: next_thread = 2; break; case 6: next_thread = 3; break; case 7: next_thread = 0; break; Thanks, shweta

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urgent!!!!!!!!!!
by Shweta Rao 06 Dec '04

06 Dec '04

Hi, can anyone tell how i can reserve a block of sram . i tried changing linker settings.i am writing data from a script to address location 0x0:0x700 in sram .i set the sram base address to 0x700 but the ixp overwrites data while processing.Is there another way.please help!!!!!!!!!!!!!!!!! Thanks, shweta

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regarding Hardware
by nitin makhija 06 Dec '04

06 Dec '04

Hellow, Do anyone of u have run ur application on the hardware, i mean on IXP1200...apart frm the workbench...and if so then can u give me some points to how to start wd. it, i've somehow completely the data plane portion of my aaplication i.e. micro-Engine programming but tht. too is restricted only to simulation on workbench..., i wanna learn SrtongARM programming, interaction between strongARM, Micr-engine and Host Processor... or anyone can tell me commnds of VxWorks, i.e. tornado which cd. b helpful even any small hint,links,.doc can b really helpful.... regards, Nitin Makhija M.Tech(CS) IIT-Kharagpur

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Urgent!!!need help !!workbench custom datastreams
by Shweta Rao 28 Nov '04

28 Nov '04

Hi, I stll have a problem with the datastreams. I hope someone can help me. I need a packet with custom data .for ex.SOAP data in the payload. I have captured a soap packet and the total framesize is 1134 with actual tcp payload 1079 .I changed the stream file in textpad mode to include this data but only 1058 bytes are correctly shown in the workbench datastream window ,the rest 21 bytes are again a repeat from the start. I again changed the 21 bytes manually in the workbench datastream window.The project acknowledges these changes and runs properly but the changes in the stream do not get saved and the next time i start the project ,the stream is again loaded with the wrong 21 bytes. The content of the payload is very important for my project. Thanks, Shweta

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Pseudo Ethernet Driver doc or advice
by Ricardo Camarena Ramos 26 Nov '04

26 Nov '04

Currently we are trying to make the PETH driver work. We are using the "IXP1200 Pseudo Ethernet Driver for Linux" guide that came with the SDK. However the Section 3.3 "Changes to the reference design" is missing. Does anyone has the complete document or have an idea about those changes? On step 4 indicates to compile and load the reference design We have compiled and loaded the one that comes with the SDK without the Workbench, but not sure is we need to change something because the explanation above. On the system setup, the step 3 indicates to setup a route entry to the core. I suppose I must use the route command of Linux Strong Arm. Something like route add -net...... any suggestion?? I must say our development platform is a based on the Brivadeli card which is a little bit different from the SI (only 4 FAst Ethernet ports). We have arranged configuration in some files accordingly. Up to now we are able to see the "peth devices" under the Linux (Strong ARM) and see the routing table properly. However we cannot ping from/to the NP, when pinging from the NP we got a "Bad descriptor fffffb000, dropping outgoing packet". It seems like the peth_start_xmit routine is not able to allocate a new descriptor properly. Any idea why this happens? -- Ing. Ricardo Camarena Ramos camarena(a)itesm.mx Asistente de Investigación Departamento de Ingeniería Eléctrica y Electrónica Tecnológico de Monterrey, Campus Estado de México Teléfono: (5255) 5864.5555 extensión: 3016. enlace-intercampus: 80.236.3016 http://www.itesm.mx http://webdiee.cem.itesm.mx/web2 El contenido de este mensaje de datos no se considera oferta, propuesta o acuerdo, sino hasta que sea confirmado en documento por escrito que contenga la firma autógrafa del apoderado legal del ITESM. El contenido de este mensaje de datos es confidencial y se entiende dirigido y para uso exclusivo del destinatario, por lo que no podrá distribuirse y/o difundirse por ningún medio sin la previa autorización del emisor original. Si usted no es el destinatario, se le prohíbe su utilización total o parcial para cualquier fin.

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imp!!!!!!!!
by Shweta Rao 23 Nov '04

23 Nov '04

Hello, can anyone one tell me why i am getting this error . (0): error : Function _cp_get_sram_at not found I have included string.h . do i have to include anything else. Thanks, shweta

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To simulate incoming packets.....
by nitin makhija 20 Nov '04

20 Nov '04

Hellow, can anyone tell me that is there any setting in the workbench by which i can simulate different packets (packets with different headers) on the same port....actually i wanna check a design of a firewall.....for which i need to check it with different types of packets..as only then i wd. be able to analysis the data sructure or algorithm which i have used.... so if anyone kow it....pls let me know... and another thing what changes shd. one have to make 2 MicroEngines transmit on the same port.... Thanxs in advance..... Regards, Nitin

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RE: [ixp1200] transmitted packets lose data
by Johnson, Erik J 19 Nov '04

19 Nov '04

You might check out the errata listed at: http://intel.com/intelpress/ixp1200/errata.htm Specifically, Chapter 9, Pages 167, 169, and 170. The transmit code supplied in Chapter 9 does not properly handle packets larger than 64 bytes. You must make two corrections. Lines 169 and 170 should read: port_state.current_data_ptr = (void*)((unsigned int)(port_state.current_data_ptr) + (64 / sizeof(long long))); instead of: port_state.current_data_ptr = (void*)((unsigned int)(port_state.current_data_ptr) + 64); This correction accounts for the quad-word addressing of SDRAM on the IXP1200. Add the following line after line 167: mpacket->eop = 0; This addition ensures the per-mpacket state maintained by the fill threads gets properly initialized for each new packet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Erik J. Johnson Intel Research & Development erik.j.johnson(a)intel.com NOT SPEAKING FOR INTEL ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: ixp1200-bounces(a)lists.cs.princeton.edu [mailto:ixp1200-bounces@lists.cs.princeton.edu] On Behalf Of Shweta Rao Sent: Friday, November 19, 2004 10:33 AM To: IXP1200 Developer's List Subject: [ixp1200] transmitted packets lose data Hi, in chapter 9 i increased the packet size to 1500 and also enabled the logging. while receiving the packets are intact in the log file as well as sdram but while transmitting the log files show the packets sent are very small with loss of data ie instead of 1500 bytes ,around 64 bytes or little more.Please, can anyone explain why this is happening. Thanks, shweta _______________________________________________ ixp1200 mailing list ixp1200(a)lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

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transmitted packets lose data
by Shweta Rao 19 Nov '04

19 Nov '04

Hi, in chapter 9 i increased the packet size to 1500 and also enabled the logging. while receiving the packets are intact in the log file as well as sdram but while transmitting the log files show the packets sent are very small with loss of data ie instead of 1500 bytes ,around 64 bytes or little more.Please, can anyone explain why this is happening. Thanks, shweta

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RE: [ixp1200] URGENT ...Help required
by Johnson, Erik J 18 Nov '04

18 Nov '04

I don't recall seeing this particular issue before. You might check the errata at this link: http://intel.com/intelpress/ixp1200/errata.htm to see whether either of the two errata listed for chapter 09 fixes your problems. erik ~~~~~~~~~~~~~~~~~~~~~~~~ Erik J. Johnson erik.j.johnson(a)intel.com Not speaking for Intel ~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: ixp1200-bounces(a)lists.cs.princeton.edu [mailto:ixp1200-bounces@lists.cs.princeton.edu] On Behalf Of nitin makhija Sent: Thursday, November 18, 2004 9:08 AM To: ixp1200(a)lists.cs.princeton.edu Subject: [ixp1200] URGENT ...Help required Hellow, can anyone send me the transmit.c of chapter09, which is working fine...facing few problems in trasmit part of my code...following problems are coming... #1 THREAD 21 is infinately looping in get_mpacket(..).. waiting for port.state to become valid...in the following loop while (!port_state.valid) { ctx_swap(); } #2 Thread 20 is continuously going in the condition where consumer == producer due to these receive code got stuck when the queue between receiver and transmitter ME becomes full......... so if anyone can find out why such a thing is happening or if anyone can send me the trasmit code which is working fine....it would be a gr8 help.....urgently required this....have to complete the module by this weekend.... Thanxs in advance... Regards, Nitin Makhija M.Tech(CS) IIT-Kharagpur _______________________________________________ ixp1200 mailing list ixp1200(a)lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/ixp1200

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URGENT ...Help required
by nitin makhija 18 Nov '04

18 Nov '04

Hellow, can anyone send me the transmit.c of chapter09, which is working fine...facing few problems in trasmit part of my code...following problems are coming... #1 THREAD 21 is infinately looping in get_mpacket(..).. waiting for port.state to become valid...in the following loop while (!port_state.valid) { ctx_swap(); } #2 Thread 20 is continuously going in the condition where consumer == producer due to these receive code got stuck when the queue between receiver and transmitter ME becomes full......... so if anyone can find out why such a thing is happening or if anyone can send me the trasmit code which is working fine....it would be a gr8 help.....urgently required this....have to complete the module by this weekend.... Thanxs in advance... Regards, Nitin Makhija M.Tech(CS) IIT-Kharagpur

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regarding workbench custom data
by Shweta Rao 16 Nov '04

16 Nov '04

Hi, I have some packet data using ethereal.All of it is in hexadecimal.when i cut and paste it in the custom data portion of the data stream all the values change ex the first byte was 50 and it changed to 35 and so on.if i manually change each hexa byte it works but i need to put one whole packet of 1500 bytes (lots of hexa) in the custom data of a particular format .Can anyone tell what i can do instead of having to sit and type manually. Thanks in advance, shweta

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L2 Bridge microACE
by Gustavo Salaiz 15 Nov '04

15 Nov '04

Hi to everybody I'm trying to test the L2 Bridge microACE that ship with Intel SDK, the microcodes compile well and the installation it's ok, but when i connect two hosts to test connection (by pings) between them, they are unreachable. Everything seems to be ok, the only thing i know is that they are transmitting to 100 mbps , is there a form to probe the ports of the ixp1200 to know what are transmitting? or a better way to test the project? Regards Gustavo _________________________________________________________ Do You Yahoo!? La mejor conexión a internet y 25MB extra a tu correo por $100 al mes. http://net.yahoo.com.mx

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URGENT !!........transmit..
by nitin makhija 15 Nov '04

15 Nov '04

Hi, so how was everyone's diwali.....back to work... till now i was tring to modify example code of chapter06 and was adding the processing steps i needed...the program worked fine as per the requirement ....just the transmit part has to be included... 1..... ...now i was adding the transmit.c code of chapter09 and assign it to ME5 alonwith this but wasn't successful..... 2.... then i tried to change the receive.c of chapter09 as per my requirements (processing part was changed....instead of bridging..i have added a code to search a data structure)...but when i build the project and view the thread specific code windows, to add the break-points, seen tht tha code didn't changed as expected....after debugging the code was that of the brigding example...but when i stop debugging...i saw tht receive.c was modified as per my requirement.... 3... then i tried to create a new project...inserted the complier files , programmed the ready bus sequencer...as was programmed in the chapter06 example....but the counter which has to b incremented as packets arrived...didn't get incremented... And i'm not able to assign a data stream to a particular port...i have not included any script file....do i have to do anything else....i guess there is some problem with the MAC....or m i missing some steps.... Hope any one can surely help me out... Thanxs in advance... regards, Nitin

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compile error
by Shweta Rao 10 Nov '04

10 Nov '04

Hi, I have defined #define SRAM_RULE_SIZE 6 unsigned int i; and i multiply these 2 and (i * SRAM_RULE_SIZE) ; and i get this compiler error.can't figure out why. (0): error : Function __mul_32 not found If anyone is aware what is causing this,Please, let me know. Thanks in advance, shweta

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