Hello Kieran, Thanx alot for the reply.
If no. of pbufs is the issue then, to resolve this problem can i make MEMP_NUM_PBUF = 32? But, i did not understand lwip data transmit logic fully, if possible can u explain it? so that i can be able to implement some other logic for buffer handling at serial side before writing data into pbufs. Regards, Asma. Kieran Mansley wrote: > > It looks to me like you have 16 pbufs, each of size 256 bytes. Your > TCP_WND is 2048, so you can have 2KB of data received and waiting for your > application before the other end will stop sending. Your TCP_SND_BUF is > 6KB, so you can have that much sent by your application waiting to go onto > the wire. In total, this makes 8KB of buffering, but you only have enough > pbufs to hold 4KB (16 * 256). I think this is why you're running out. > > Kieran > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users > > -- View this message in context: http://old.nabble.com/lwip-fails-for-full-duplex-communication-tp33862721p33886914.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
