HTTP server application

uma devi

Expert 2955 points

Other Parts Discussed in Thread: MSP430F5529, MSP430F2618

Hi,

I have ported HTTP SERVER APPLICATION of MSP430F5529 to my MCU.

I have loaded HTML pages of the application successfully.

But instead of WHEEL POSTION and WHEEL VOLTAGE of the demo i want to display internal temperature of my MCU.

I have replaced wheel.c and Wheel.h files content for reading internal temperature but when i load the binary generated to FlashDBcontent.c and run, only LEDs are operating dynamically but not displaying internal temperature value dynamically.

Any help is appreciated...

Regards.

over 11 years ago

0 Raghavendra Shenoy over 11 years ago

TI__Mastermind 27095 points

Hi Uma,

I believe that this depends on how the MCU is sending the temperature data and also depends on your implementation of the HTML page is using it.

Can you please give more details on how you are using the data?

Thanks & Regards,
Raghavendra

0 uma devi over 11 years ago in reply to Raghavendra Shenoy

Expert 2955 points

Hi Raghavendra,

I have replaced wheel.c file content with "MSP430x261x_adc12_10.c" example of MSP430F2618 MCU

and the return value of temperature is used to display on the web page.

Fullscreen 6747.index.html Download

<!DOCTYPE html>
<html>
  <head>
    <title>CDAC</title>

    <style type="text/css">
      body {
	
        background-color: #FFFFCC;  
	margin-left: 20%;
        margin-right: 20%;
        border: 1px dotted gray;
        padding: 10px 10px 10px 10px;   
	font-family: sans-serif;
      }
    </style>
</head>

 <body>

   <h1 align=center><font color="#264984"><img src= "logo.gif" align="middle"/><br>HTTP WEB SERVER</font></h1>
<table border="0" align=center width=2000px height=590px>
<tr>
<td align=center width=20></td>
<td width=450px align=left valign="top">
<h2> <font color="#264984"> Dynamic LEDs Action: </font></h2>

<form>
<input id="LEDno4" type="checkbox" name="LED_4" value="LED_4" onclick="ToggleLED('4')">LED 1 
<input id="LEDno5" type="checkbox" name="LED_5" value="LED_5" onclick="ToggleLED('5')">LED 2
<input id="LEDno6" type="checkbox" name="LED_6" value="LED_6" onclick="ToggleLED('6')">LED 3
<input id="LEDno7" type="checkbox" name="LED_7" value="LED_7" onclick="ToggleLED('7')">LED 4
<input id="LEDno8" type="checkbox" name="LED_8" value="LED_8" onclick="ToggleLED('8')">LED 5
</form>
<p id = Temperature_Value"> </p>
<h3> <font color="#264984">MSP430F2618 Temperature Sensor Value = <id="Temperature_Value"></h3>


<h2><font color="#264984"> Accelerometer Data: </font> </h2>
<h3><font color="#264984"> X-axis data :</font></h3>
<table border="1" width=316px height=35px >
<tr><td><table border="0" width=316px height=35px><tr><td id="slider1"></td><td></td></tr></table></td></tr>
</table>
<h3><font color="#264984"> Y-axis data :</font></h3>
<table border="1" width=316px height=35px >
<tr><td><table border="0" width=316px height=35px><tr><td id="slider1"></td><td></td></tr></table></td></tr>
</table>
<h3><font color="#264984"> Z-axis data :</font></h3>
<table border="1" width=316px height=35px >
<tr><td><table border="0" width=316px height=35px><tr><td id="slider1"></td><td></td></tr></table></td></tr>
</table>
<td align=cneter width=300></td>
</tr>
</table></font>

<script>  

var HTTPrequest = new XMLHttpRequest();
var count = 0;
var receivedResponse = 1;
var sendNo=0;

function ToggleLED(LEDnum)
{
	HTTPrequest.open("POST","/led-status?num="+LEDnum+"&action=toggle", true);
	HTTPrequest.send();
 }

function periodicUpdate(){
	if(receivedResponse == 1 || count >= 4)
	{
		if(sendNo<3)
		{
			HTTPrequest.open("POST","/wheel-status?&action=getstatus", true);
			HTTPrequest.send();
			receivedResponse = 0;
			count = 0;
			sendNo++;
			HTTPrequest.onreadystatechange = function()
			{
				if (HTTPrequest.readyState==4 && HTTPrequest.status==200)
				{
					receivedResponse = 1;
					sendNo=0;
					document.getElementById("Temperature_Value").innerHTML = HTTPrequest.responseText;
					
					
				}
			}
		}
		
	}
	count = count + 1;
	setTimeout(function () {periodicUpdate(); }, 1000);
}


</script>

  </body>
</html>

Above is the web page i modified.

Please help.

Regards.

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