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EK-TM4C123GXL: TIVA-TM4C123G And CC3100 Http Web Server Application using CCS.

Sajad Rather4
Expert 1655 points
Part Number: EK-TM4C123GXL
Other Parts Discussed in Thread: CC3100, ENERGIA, MSP430F5529, UNIFLASH, CC3100SDK, , CC31XXEMUBOOST

Hello everyone,

Well my post is related to an issue with TIVA and CC3100 Http  web server.

The main goal of my project is to watch out for different sensors connected to my TIVA launchpad plus CC3100.

I have achieved it using Energia Framework as there is a simple web server example already defined,so little modifications were needed using Energia.

Now when coming To ccs,MSP430F5529 + CC3100 works fine with all the examples defined in SDK,tried most of them even the Http server one also and i was able to control the on board LEDs using web browser.

The problem i am facing with TIVA + cc3100 ,I read the doc for http server example ,it says we need to dumpl the server.ucf file into flash using Uniflash first,but i wonder why to do that,when we can do everything using CCS.

To program the board for Http web server(to control on board Leds),the steps i followed are as

1.imported the WLAN_AP project into my workspace and Set the path for tivaware.              (   import path (C:\ti\CC3100SDK_1.2.0\cc3100-sdk\platform\tiva-c-launchpad\example_project_ccs\getting_started_with_wlan_ap))

2. tried to build the apllication to verify the paths,everything was quite good to go.

2. Now replaced the main .c by  the main.c from C:\ti\CC3100SDK_1.2.0\cc3100-sdk\examples\http_server.

3.Tried to build it again,now there i am getting some errors that,LED1,LED2  etc are not defined.

I know the problem is there with board.c and board.h files of the program because no functions are defined for tiva leds under these files.

I tried to define those leds but i am not able to find where Led1 has to be defined as PortF pin1 and Led2 as PortF pin2.

If possible suggest some resources to go easily with the whole thing.

Thank you

regards 

Sajad

  • 0
    TI__Guru**** 184346 points

    Hi,

     On the launchpad the LEDs are connected to the PF port as follows. You can look at the project0 example t(under <TivaWare_installation>/examples/boards/ek-tm4c123gxl/project0 to see how the macros are setup for these LEDs.

  • 0
    Intellectual 275 points

    Hi Sajad

    LED1 and LED2 are not actually addressing the PortF pin1/pin2. This is an enumeration type for http_server example.

    typedef enum

    {

       NO_LED,

       LED1,

       LED2,

       LED3

    } ledEnum;

    One more thing, If you are not using Uniflash to download "server.ucf" to the serial-flash, what did you plan to download that file which contains html files into serial-flash? You have to flash html files in order to access the corresponding pages.

    Thanks

  • 0 in reply to Nazmul Hasan
    TI__Guru**** 184346 points

    Have you tried to download the Wifi examples for TM4C from the CCS Resource Explorer?

  • 0 in reply to Charles Tsai
    Intellectual 275 points
    Hi Charles,

    I've used IAR EWARM with 30-days evaluation license and I downloaded the html files using serial flash API (cc3100-sdk\examples\file_operations). Poor people method, I did't have CC3100 emulator BoosterPack (CC31XXEMUBOOST).

    ~N
  • 0 in reply to Nazmul Hasan
    Expert 1655 points

    Hi Nazamul & Charles,

    Thank you for your response,

    Charles i have tried those wifi examples ,they seem to be working with TIVA + CC3100.

    Nizamul, I defined the LED ports in Enum file,But the thing was ,how to flash html files using  into TIVA + CC3100 ,

    Now it seems i also have to try that poor mans method  for flashing.

    your help is appreciated.

    Regards 

    Rather SAJAD

  • 0 in reply to Sajad Rather4
    TI__Guru**** 184346 points
    Hi Sajad,
    Please take a look at these below posts. Hopefully they will provide some clues to your question.

    e2e.ti.com/.../480158
    e2e.ti.com/.../373094
    e2e.ti.com/.../1590683

    BTW, I'm currently on travel. Please expect delay response.
  • 0 in reply to Charles Tsai
    Expert 1655 points

    Hello charles,

    Ok i will look into the links

    Thank you 

    Regards

    Rather Sajad

  • 0 in reply to Sajad Rather4
    Intellectual 275 points

    Hi Sajad,

    Please check the "C:\ti\CC3100SDK_1.1.0\cc3100-sdk\examples\file_operations" or http://processors.wiki.ti.com/index.php/CC31xx_File_Operations_Application.

    Based on content of your html file(s), you can store those in TM4C123G's RAM or ROM. Please do care about double quote ( \ " double quote content " \ ).

    Thanks

  • 0 in reply to Nazmul Hasan
    Expert 1655 points
    Hello Nazamul,

    well thank you for the helpful links,
    Last time you talked about your " poor" mans method for flashing Html pages using IAR.
    Any links for that how to do it.

    regards

    Rather
  • 0 in reply to Sajad Rather4
    Intellectual 275 points

    Hi

    Sorry, I didn't find a helpful online tutorial on this. More than a year ago, I did by my own. You need to do the following changes on the "example/file_operation" source code.

    1. Change the file name defined by "SL_FILE_NAME". This should be something like this "www/html_file_name.html" or "www/safe/html_file_name.html" based on your application mode. (More on this at chapter 12 of swru368a.pdf).

    2. Change the content of const variable "oldMacDonald" with your html code. I did something like below

    const _u8 pagecontent[] = "<!DOCTYPE html>\
    <html>\
    <head>\
    <title>SimpleLink(TM) - CC31xx - TI WiFi On Chip</title>\
    </head>\
    <body>\
    Hello World!\
    </body>\
    </html>";

    [NOTE: If you change the file content variable from "oldMacDonald" to "pagecontent". Then make sure to change the rest]

    Hopefully, You will build after the above change and able to browse the loader page with "HTTP Server" application. Let me know if you find any difficulties. 

    Thanks

  • 0 in reply to Nazmul Hasan
    Expert 1655 points
    Hello Nazamul,


    Thank you for the response once again

    I will try to do it as per your idea and will update you accordingly.

    Regards

    Sajad Rather