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[lwip-users] Sending a large amount of data using UDP

From: Jon Bean
Subject: [lwip-users] Sending a large amount of data using UDP
Date: Sun, 19 Jul 2020 11:44:47 +0100
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0


I have an application were I need to send around 4k of data using UDP. What I would like to know is how I go about sending this using LWIP. I can send small packets no problem. I first allocate a pbuf. Then copy my data to the pbuf. Then send the data. But sending 4k of data doesnt work. I realise that the Ethernet has a max payload of 1500 bytes. Is there a different way to send large amounts of data? Do I need to configure something and then do it the same way I have previously? I am using a embedded TIVA micro controller.



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