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AWR2944: Enet Lwip CPSW Example with Static IP

user6379473
Prodigy 220 points
Part Number: AWR2944

Tool/software:

 HI :

SDK4.7.0.1     C:\ti\mmwave_mcuplus_sdk_04_07_00_01\mcu_plus_sdk_awr294x_10_00_00_07\examples\networking\lwip\enet_lwip_cpsw

Modify code in file lwipcfg.h file as below to set USE_DHCP and -USE_AUTOIP as '0'

/* uncomment the next two lines for Static IP */
-//#define USE_DHCP 0
-//#define USE_AUTOIP 0
+#define USE_DHCP 0
+#define USE_AUTOIP 0

 Using example.syscfg change the phy to DP83TC812R, then change the ip to static, change the code for sending data to send 31 bytes of data every 80ms, after some time, usually no more than 2 hours, the sending stops, the following error occurs when grabbing the packets from Wireshark, and it needs to be disconnected and reconnected to recover, I guess it is a send cache overflow, please help me to analyse the reason. The Wireshark packet capture file is as follows, the problem is identified in the figure. wireshark.zip