Merge pull request #29 from bitcraze/toverumar/update_snd_buf_size

Increase the tcp send buffer a lot to allow for more stable transmission

Author: ToveRumar

sdkconfig

@@ -757,7 +757,8 @@ CONFIG_LWIP_TCP_SYNMAXRTX=12
 CONFIG_LWIP_TCP_MSS=1440
 CONFIG_LWIP_TCP_TMR_INTERVAL=250
 CONFIG_LWIP_TCP_MSL=60000
-CONFIG_LWIP_TCP_SND_BUF_DEFAULT=64000
+
+CONFIG_LWIP_TCP_SND_BUF_DEFAULT=65535
 CONFIG_LWIP_TCP_WND_DEFAULT=5744
 CONFIG_LWIP_TCP_RECVMBOX_SIZE=6
 CONFIG_LWIP_TCP_QUEUE_OOSEQ=y
@@ -1290,7 +1291,7 @@ CONFIG_TCP_MAXRTX=12
 CONFIG_TCP_SYNMAXRTX=12
 CONFIG_TCP_MSS=1440
 CONFIG_TCP_MSL=60000
-CONFIG_TCP_SND_BUF_DEFAULT=5744
+CONFIG_TCP_SND_BUF_DEFAULT=65535
 CONFIG_TCP_WND_DEFAULT=5744
 CONFIG_TCP_RECVMBOX_SIZE=6
 CONFIG_TCP_QUEUE_OOSEQ=y