Easy tcp/ip twi problems

zolsi · Joined: 24 Jan 2006 Posts: 51

I just tried for the first time my easy tcp/ip twi board and i cant see a web page from the web server (webserver.bas sample).
I can ping the web server with my pc while he is running).
I tried ping.bas and i can ping my pc.

Any idea ? thank you

zolsi · Joined: 24 Jan 2006 Posts: 51

i use an atmega8, could it be a problem? i think no since i cant ping my pc with the board...

When i do a request on 192.168.1.25 or 192.168.1.25/index.htm (config of the webserver, on port 80) i can see the orange light blinking...

In the hyperterminal i can see :

Frankeman · Joined: 11 Aug 2004 Posts: 948 Location: the Netherlands

hi,

And if you try:
http://192.168.1.25:6969/index.htm

Frank

zolsi · Joined: 24 Jan 2006 Posts: 51

already tried and same result Sad

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

Hi,

You need to make sure the EEP file is also programmed !
This file is programmed into the EEPROM space.

zolsi · Joined: 24 Jan 2006 Posts: 51

what the h*** is that EEP file ?? tell me more Razz

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

The webserver sample demonstrates various methods to send data.

Look at the line :
Tempw = Tcpwrite(i , Eeprom , Woffset , Wsize) ' write data

Here the EEPROM is used as a data source. What means that some of the web pages are stored in EEPROM.
BASCOM uses the EEP file extion for this. The EEP is just a binary image.

BASCOM can program this file. Some programmers only understand HEX. For this reason BASCOM also has an option $EEPROMHEX in case you generate the files from bascom data lines.

The EEP file was generated with a simple html editor. There are tools such as BIN2HEX that can convert binary files into Intel HEX files.

I advise to set the fusebit of the micro so the EEPROM does not get erased once it is programmed.

Another option is to change the program and to send data from the flash memory or dynamic generated.

For this case, a conversion from bin to hex would be needed when AVR tools can not read the EEP file.

zolsi · Joined: 24 Jan 2006 Posts: 51

Ok thank you now its clear about eep file.

But why does i dont see a connection in the hyperterminal (with debug = 1) when i try to connect with my browser.
Even without that eep file, i should see a connection in the terminal (and nothing in the browser because the program doesnt find the data in the eeprom.)

I tried bin2hex and avr studio doenst want toflash the generated hex file ( it says that is not valid hex file..) Then i tried to remove the

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

Hi,

I read various things. ABout TWI, webserver.bas, port 6969. A lot is not clear to me. I am not part of the 4400 Smile

so i need to determine what is working and what not.
Hereis what you need to do :
- read the Easy TCP manual
- read the Easy TCP TWI manual
- perform the test programs. Use Tools, Easy TCP/IP to perform the TCP and UDP tests.
- Since you use TWI, you need to use the samples from the TWI subdir.
The webserver sample is named webserver_TWI.bas
In general, when you can PING the port, the configuration wend well.
But there are firewalls in routers, PC's that can block a port.
Make sure that these ports are enabled, or disconnect the PC from the internet and enable all fire walls. MAKE SURE there is no internet connection while disabling the firewalls !!!
In general it is a bad idea anyway to leave a development connected to the internet all the time.

The line :
I = Getsocket(0 , Sock_stream , 5000 , 0)
Listen on PORT 5000. So you probably modified the code sample?
Maybe you changed more. It is best to test the samples as provided without mods.
So to get data from this webserver you need to use http://IP:5000/index.htm

you should see data from the browser when you try to look at a page.
the browser send a lot of info.

I think that your problem is the wrong port or firewall.

zolsi · Joined: 24 Jan 2006 Posts: 51

Ok it works .

The problems was : the port in the tcp init line is not the port you have to connect to get the wab page.
So its :5000 by default

Embarassed

Thank you mark !