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Ethernet
Related Posts

  • Forum Post: uip packet receive problem

    SangEun Kim
    hi. I'm having a uip problem. I'm have to use lm3s9d96. and enet_uip project in StellarisWare\board\lm3s9b92 are using. now, enet_uip is removed DHCP, and httpd_appcall() function is changed to tcp_appcall(), and added udp_appcall(). tcp_appcall() is parsed in uip_appdata. udp_appcall...
    on Aug 3, 2012

  • Forum Post: Stellaris Ethernet Core Module

    Jon Peterson
    I would love to see a Stellaris Ethernet Core Module provided by TI. This would be very helpful/useful for small-run projects. At a "high level" take the EKx-LM3S6965 board; remove the OLED (& power supply), switches (except maybe the reset switch), LEDs, speaker, shrink and square the...
    on May 22, 2010

  • Forum Post: Re: Boot Ethernet on the lm3s9b96 bord.

    Dave Wilson
    Ben, I'm sorry, but I don't understand exactly what you are asking. Let me offer an overview of how the Ethernet boot loader (or any of the boot loaders) work in case that helps. The boot loader is a piece of code which knows how to configure a particular communication link and listen for...
    on Jun 28, 2010

  • Forum Post: Stellaris online debug

    Jon Peterson
    I don't see any of the Stellaris products which support CCS (Eclipse) debug over Ethernet. NetburnerMOD5270 does this with the Freescale Coldfire MFC-5270 (141+ MIPS) processor. I see this as a huge advantage for Web Server based sensors and controllers. If the processor hasn't totally died,...
    on May 24, 2010

  • Forum Post: Ethernet without magnetics

    Todd Elliott
    I'm looking to bring Ethernet out on a 4-pin M12 connector. The application does not require long Ethernet cable runs. Just a couple of feet to to a laptop or router. I'm hoping to eliminate the magnetics. I found this application note for an Intel Ethernet controller regarding "magneticless...
    on Jul 9, 2010

  • Forum Post: Re: problems sending lots of data using Ethernet lwIP

    Cesar Ofuchi
    Hello Ken, I will take a look at the code, thanks. I tried to change the sendMessage context outside the tcp_recv (actually I was generating a response inside the tcp_recv context) Now I have another error I enabled lwIP debug traces, and I've got the follogwing message: tcp_write...
    on Jul 13, 2010

  • Forum Post: Re: problems sending lots of data using Ethernet lwIP

    Cesar Ofuchi
    Well, after some time debugging the lwIP (enabling tcp debug messages helps a lot), I found my problem. Just enable some defines at lwopts.h !! I was closing my connection inside the http_sent callback. So, now I have the following conditions: PC request data (1024 each time), until a value...
    on Jul 14, 2010

  • Forum Post: problems sending lots of data using Ethernet lwIP

    Cesar Ofuchi
    Hello, I have an application where I send a lot of data (saved in a SD Card) through ethernet, using lwIP. I am using the enet_lwip project as a base. I send data using the send_data function from httpd.c. modified the function to be more like the tcp client example from http://e2e.ti.com/support...
    on Jul 12, 2010

  • Forum Post: LM3S8962: lwIPInit() causes hard fault and faultISR()

    David R.
    Hello- I am new to Stellaris and ARM development, and am working with the EK-LM3S8962. I am trying to use the lwIP stack, and the lwIP wrapper module, to build a very basic ethernet application. My goal is to open a socket on the LM3S8962 device, accept characters on the socket, and echo them back...
    on Jul 9, 2010

  • Forum Post: Re: LM3S965 Boot Loader Questions

    Dave Wilson
    Here's how to get the Ethernet boot loader (boot_eth) and a suitably configured application (for example boot_demo_eth) running so that you can update the application via Ethernet. 1. Use LM Flash Programmer to flash boot_eth.bin to address 0 via JTAG. Select "LM3S9B96 Development Board"...
    on Aug 19, 2010

  • Forum Post: Performance of TCP/IP Stack on microcontrollers that have MAC+PHY

    Huy Bui Quang
    I am developing an applicaiton using Ethernet. I've used PIC microcontroller of Microchip for this. But PIC32 only included MAC and I have to use another PHY device. So, I am interested in TI's microcontrollers that have MAC+PHY included. (your Stellaris ARM Cortex-M3 LM3S9B90). Microchip...
    on Aug 23, 2010

  • Forum Post: Problems with Ehternet Phy Interrupt

    Mathieu Barbe
    Hello, I trie to use lwIP on my bord LM3SB90 with FreeRTOS . I’ve a problem with the interrupt detection on PHY layer. 1) When I read the MR29 register in my interrupt handler, he doesn’t clear. I can read MR29 register more than once. The value is not clear. The datasheet...
    on Aug 26, 2010

  • Forum Post: Re: STELLARIS LM3S6911 LAN emi test problem

    Stellaris Paul
    It is a little difficult to tell exactly what is going on in your configuration, but here are some things to look at: Length matching on differential Ethernet pairs is not quite right.B Best results are typically achieved with integrated RJ45 + magnetics (shielded). The 10pF capacitors...
    on Aug 30, 2010

  • Forum Post: Re: STELLARIS LM3S6911 LAN emi test problem

    tang55824
    Thank you for your reply. The actual test, the artificial increase in the pcb on 10pf capacitor, or even to 20pf, the test waveform, hardly any change. The strange thing is where the comparison to the 370khz superscalar? Map is in the gnd plane pcb design. Do need to increase the common mode...
    on Aug 31, 2010

  • Forum Post: Problems updating the Stellaris BLDC RDK firmware!

    Kartunov
    Hello, I bought the Stellaris BLDC RDK with the BL3056 motor. However, when I was updating the firmware board I clicked in the StellarisWare\boards\rdk-bldc\basic-bldc\ccs\Debug\basic-bldc.bin. I cannot access the board anymore via Ethernet or JTAG, and I cannot send other firmware either. ...
    on Jun 29, 2010

  • Forum Post: enet_io demo

    itsme311
    Hello, I am trying to adapt the enet_io demo code to my product. What i'm running into is that sometimes it won't pull an IP address unless I power cycle. Usually this happens when connecting directly to a PC instead of a switch. My application is not a product that can be easily power...
    on Oct 20, 2010

  • Forum Post: Ethernet packet length and EthernetPacketGet routine internals

    Maurizio Ferraris
    Hi all, In my application I have to receive lots of ethernet packets, and I needed to handle the case when I receive a new packet and I have no room to store it. In this case I needed to empty the FIFO, without storing the packet. Since there is no "EthernetPacketFlush" available I went...
    on Oct 20, 2010

  • Forum Post: Re: Ethernet Applications of lm3s8962

    Andy Neil
    billy nguyen I didn't still understand the action of ethernet clearly The action of Ethernet is entirely unrelated to the lm3s8962 - or any other specific device! Ethernet works the same whether it is being used by an 8051, an lm3s8962, a PC, a Mac, or anything else - that is the whole point...
    on Nov 2, 2010

  • Forum Post: BLDC kit - Problem with Ethernet Connection

    Carlos Costa
    Hi. I have a BLDC kit with LM3S8971. While measuring the signals around the board I burn out the uC and I replaced with another one. To program I used a JTAG parallel cable with the H-JTAG software. This works fine. I program the 'boot_eth' to the flash base adrress and the 'qs_bldc'...
    on Oct 21, 2010

  • Forum Post: Ethernet Broadcast UDP Packets

    Bryan Busacco
    I have been stuck for awhile on one problem. I am trying to generate broadcast UDP packets. The hardware does not seem to let me do this. I have code that will generate a packet that is virtually identical to packets that I have successfully sent from a program on my PC. I have put debug code into the...
    on Nov 15, 2010

  • Forum Post: Required: Data logger with HTTP and FTP facility using LM6965

    Divyansh Gupta19021
    Hi , I am searching for an IT consultancy company having vast experience in developing Embedded Ethernet Applications. Project : Data logger with HTTP and FTP facility using LM6965. Further details will be discussed in person. Thanks and Regards, datalogger@ymail.com "I apologize...
    on Nov 17, 2010

  • Forum Post: creating unique MAC Address in LM3S9b90

    Pradhan Rivankar
    Hi I am working on LM3S9b90 and I would like to know, In the USB to Ethernet implementation, how do we create unique MAC addresses?? Please help me out in this.. Thanks and regards
    on Dec 2, 2010

  • Forum Post: Re: Ethernet + SD-Card example

    Andy Neil
    beginer have to make a simple project for my class Neither ethernet nor SD Cards on their own is "simple"; let alone combining them - so I think you may be going in way over your head here! I think you need to go back to your tutor and clarify exactly what was meant by, "simple"...
    on Dec 15, 2010

  • Forum Post: Re: Ethernet + SD-Card example

    Andy Neil
    beginer I use the Stellaris LM3S6965 Evaluation board, and have been provided with all the documentation and developement tools. So, amongst "all the documentation and developement tools", you should find a folder called enet_lwip , for which the readme file says, enet_lwip/readme.txt...
    on Dec 15, 2010

  • Forum Post: Re: Eflash erase

    Dave Wilson
    Eflash uses the BOOTP and TFTP protocols to download a new image. Unfortunately, these protocols don't offer the ability for us to send additional commands or setup information (without us breaking the basic protocol and adding extensions, I suppose) so the flash erase policy is dictated by the way...
    on Dec 21, 2010
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