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MSP432E401Y: TCP UART Bridge LWIP

Part Number: MSP432E401Y

Hi,

I was wondering if there is any example code to create a bridge between UART and TCP using LWIP, I am using no RTOS. I want to be able to accept a connection and communicate with each other to send/receive packets. I am using the echo send and ethernet control io example currently and having problems using the tcp_output() function. My code is in C++ so it is going into the default handler everytime tcp_output is executed. I was wondering where the interrupt handler tcp_output() is calling is, or would i have to create my own Interrupt handler.