WIZnet Developer Forum

add bytes to TX_Buffer while W5500 is sending TCP

Hi,

I would like to know if I can add more bytes to the buffer with “wiz_send_data()” if there is any free size while command SEND is running in chip (it is no finished yet (sock_is_sending = true))

If I can, Can I call to SEND command again while W5500 is still sending?

Regards

We don’t recommend to call send command while w5500 is still sending.
Please add a buffer and send again after sending previous data is completed.

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