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MCB2300 webserver : file download from webserver

udit salunke

Hi friends, I want to download a file from LPC2366 based embedded webserver;

So I have Implemented the RAM file system. I am able to read and write to the file R: test.txt.

Now I want to download this file to Client PC.

For the file download, I have modified the HTTP DEMO project under==> keil/ARM/boards/keil/MCB2300/RL/TCPNET/HTTP_demo.
I have added the RAM file system code. I am able to read /write the file R:test.txt

For downloading the file, I am using AD button event on the home page( index.htm)....

 . ..........
 . .........
 . ........
  <center>
          <table width="797" height="94" border="0" cellpadding="0" cellspacing="0"><tr><td align="center">
          <font face="Verdana"> [
            <a href="/network.cgi">Network</a>   |
            <a href="/system.cgi">System</a>     |
            <a href="/leds.cgi">LED</a>          |
            <a href="/lcd.cgi">LCD</a>           |
            <a href="/dwnld.cgi">AD</a>        |
            <a href="/language.cgi">Language</a> |
            <a href="/tcp.cgi">Statistics</a> ]</font>
          </td></tr></table>

So that, when i click on AD button, it will call dwnld.cgi ( given bellow)


t <HTML>
t <head>
t <META http-equiv=Content-Type content="application/download">
t <META http-equiv=Content-disposition content=": attachment; filename=R:test.txt">
t </head>
t </HTML>
. END of the script

Now the problem is, on button click event i am getting a balnk page in the IE.

Is there some thing missing in the download script.

Please suggest!!

  • 0

    Buttons? "<a href="/dwnld.cgi">AD</a>" does not represent any AD button. The href gives the target address of a link, not a button.

    "Is there some thing missing in the download script."

    Just a question: Where is the script? Your print of the dwnld.cgi just represents html data to send. But what part of the text represents a script, i.e. code to be executed? Does the Keil manual document file downloads? Note that a common way to download files when you use href links is to let the link represent the address of the link and then let the user right-click the link and do Save-as (or as alternative just click the link and have the MIME + web browser decide if the data can be viewed or requires a question to the user what to do with the file).

    But to send out a file, something must take responsibility for serving the file, i.e. sending the file data.

    I haven't used the Keil embedded web server, but have they documented that the web server will read the meta tags and figure out that a file should be served?

  • 0 in reply to ImPer Westermark

    Actually, i dont know HTML. some terms used in my last post might be confusing.

    the situation is, I have a RAM file system and Web server implemented on the LPC2366. " Web server" is same as boards/keil/MCB2300/RL/HTTP_demo

    In the HTTP_demo project out of Network,LCd,AD (Button / link)on the home page...I want to modify / add the code to use AD for my file download....

    Please help if any one have done the File download to client machin from Embedded Web server.