W5500, send() fragments packets

TCP/IP Chip W5500
1

Hi!
I try to send a messge to server:

int32
result32 = send( sock, txBuff, 10 ); // request_1

But server report:
recv() 4 bytes: requ
recv() 4 bytes: est_
recv() 2 bytes: 1 //+\n

I don’t understand this situation. Why W5500 devide one message by three? How to make the W5500 dosn’t split one parcel by three?

2

Screenshot_403
Screenshot_4031090×146 61.9 KB

3

I’m sorry I’m late reply.
Could you tell me if you used any of the libraries we provide?

4

Hi! I use ioLibrary.

5

image
image1209×186 104 KB

I looked at the capture file you sent me one more time, and I could see that W5500 (ip 192.168.27.133) sent 10 bytes.
You should check whether the server received data by dividing it.
Again, the W5500 sent 10 bytes in one packet.

6

Yyyyyes! Thank you very mach, Irina! I have found a mistake in my programm. The mistake was fixed and the programm work corectly.

7

WoW~!
I’m glad that your program is working normally.
If you have any questions next time, please leave a message.
Have a good day. :slight_smile: