How to send serial data using WIZ750SR-110?


I have configured WIZ750SR-110 as my server in DHCP mode. (Noted its IP address and Port Number).

WIZ750SR-110 is connected to a Desktop using Serial Interface and the other end (Ethernet) is connected to RJ45 cable. The Desktop is running Putty to display incoming data on Desktop Screen and is configured correctly. (Baud Rate, data size, start and stop bits and Flow control match that of WIZ750SR-110).

On the transmitting end is a Laptop that runs SSH terminal window using Putty. and the terminal is configured to connect to my server (WIZ750SR-110) using the IP address and Port number that was earlier recorded.

Now, when I start Putty on the transmitting (Laptop/client) side with SSH terminal, the receiving end Putty (Desktop/serial port) displays a message “SSH-2.0PuTTY_Release_0.71” and the configuration terminal of WIZ750SR-110 shows CONNECT as its status.

When I try typing any data into SSH Terminal Putty, nothing gets displayed on the Serial Port Putty.

Can someone help or tell where I am going wrong?

Thank you in advance.

Note: I have enabled character display under PuTTY settings so there is no issue on PuTTY side.



Can you share the screenshot of your configuration tool?
It would be helpful for me to figure out the reason.

Thank you.




So here is the server side terminal window with serial port of S2E connected to my Desktop PC:

And my Client side connected to laptop running SSH Terminal using PuTTY is blank.

As soon as the connection to the server is established from client, the text “SSH-2.0-PuTTY_Release_0.71” (the client side PuTTY details) get displayed on the serial terminal window on Desktop.

On the S2E module the following LEDs light up:
Ld3: Status_led0 (Blue) : PHY Link Established
Ld4: Status_led0 (Green) : TCP Connection Present
LD5:Status (Green) : Status

Now after establishing connection, whenever I enter any text on either of the Terminals, nothing displays on the other end. Also, the TXD and RXD UART Leds do not light up (one possibility is it is too fast a transition to be visible).

What can be going wrong?


And the Configuration tool looks like this:



Isn’t there any terminal character like ‘0x0d’, ‘0x0a’ to send data from SSH terminal Putty to Serial Putty?
The greeting message has that so that it was transferred but following message seems not to have it.
Can you check it again?




I changed the SSH Program. There was some problem with PuTTY, basically it was outdated. So switched to Hercules, as seen on other Wiznet forum posts and it worked just fine.

Still Wondering what has changed on TCP/IP from the days of PuTTY that its SSH Terminal is not working. Maybe there is something with the settings that needs to be changed. I will check it later when I am free.

Thanks once again James!