Boot mode/putty

Wi-Fi Module WizFi250
1

Hello,
I follow the instructions of the youtube video to enter boot mode but with NO success. As the module is powered on I plug the connector to jumper 3 , press the reset button but only the LED 4 lights up and not LED 3 as well. Any ideas?

Also when I open putty I open a session with the 115200, 8, 1, N settings then at the screen I suppose to write it does not accept any letters! I type and nothing shows on screen!
Any ideas on that?

which terminal server software they use in the youtube video?

Also I opened the firmware update tool and cannot find the wizfi250. Do I need to install additional drivers?

Thank you

2

Hello,

Well…I think, you should re-check that.

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There’s a problem with the red box, right?
If it so, please check status from following.

  • Mode LED Indicate Data/Command Mode
    :diamonds: LOW(ON) : Data Mode
    :diamonds: HIGH(OFF) : Command Mode

  • Wi-Fi LED Indicate Wi-Fi Association
    :diamonds: LOW(ON) : Wi-Fi is associated
    :diamonds: HIGH(OFF) : Wi-Fi is not associated

About terminal program, I suppose, it was acts on data mode.
If you want to know about it detailed, please check following.
[url]http://wizwiki.net/wiki/doku.php?id=products:wizfi250:wizfi250pg:start#command_mode_data_mode[/url]
Also, terminal program is used in youtube video is “Helcules”.

And following is wizfi250’s firmwate update tool and files.
[url]http://wizwiki.net/wiki/doku.php?id=products:wizfi250:wizfi250firmware:start[/url]
Please check again about that.

Thanks, regards.

3

Hello,

Thanks for the reply

  1. I put the jumper for boot mode, and only the wifi LED is ON , is this correct?
  2. In device manager I get “unknown device” - FT232R USB UART and no association with a COM port, so I cannot communicate through putty.
    ARE there any drivers for the wizfi?
    3.I have managed to send data to wizfi from MCU

when I send “AT” I get a response “++AT”
when I send “AT\r” I get a response “error invalid input”
when I send anything else I do not get a response, even if I send “AT+UART=?” ANY IDEAS?
latest update
when I send AT commands and listen for a response I get null value -like nothing.
So if I send to wizfi “AT\r” and get an invalid response, THEN what is a valid command?

Thank you

4

Hello,

  1. If you set the boot mode, it will.
    But, if you don’t that, you can see result like on the video.

  2. I will attach driver file on your e-mail. Please check it after install that.

  3. Well…You should check if it is boot mode.
    AT command not operate on boot mode.

Thanks, regards.

5

Hello Cliff

Thanks for the reply

  1. What video do you mean? I set the boot mode but maybe the driver is the problem. *edit installed the driver and managed to upgrade wizfi module!

  2. I downloaded the driver but has extension of .zzz HOW do I use that? ( edit FIXED is OK now I changed the extension to ZIP - extracted it and worked THANKS!!! )

  3. When I send the AT commands only the wifi LED is on the MODE is off, is this correct?
    Also I try to send AT commands from the MCU with both LEDs off MODE & WIFI and I get no response!!!
    On which FORMAT should I send the AT commands?
    So far I send as string ( “AT” )
    should I send ( "A,T\r) ?
    should I send as ascii number? ( 65 , 84 ) ? 65 for A and 84 for T ? What about the comma?

Thank you!

6

Hello,

  1. I mean the youtube video for instruction.
  2. It’s a good thing that.
  3. First, I already explaned about operation of LED.
    AT command operates in “command mode”.
    It doesn’t matter “AT” or “AT\n”. Both of them was handled by WizFi250.
    I do not know which MCU to use, but it might be a good idea to analyze the WizFi250 source in the Arduino Library.
    If you need it, you can get to follwing.
    github.com/Wiznet/WizFi250_arduino_library

Thanks, regards.