移植STM32F407开发板的网络历程,和电脑通信后,速度能跑到四兆,但是长时间下去后,速度会下降,最终停止发送,此外在发送速度降低的同时,串口会打印出Assertion "tcp_write: pbufs on queue => at least one queue non-empty" failed at line 328 in ..\LWIP\lwip-1.4.1\src\core\tcp_out.cAssertion "tcp_receive: valid queue length" failed at line 1031 in ..\LWIP\lwip-1.4.1\src\core\tcp_in.c,新人学32,请各位老师指点啊?