FreeRTOS+TCP Port Raspberry Pi

How to port/implement the FreeRTOS+TCP.

keyword: RTOS, Scheduling algorithm. FreeRTOS, lwIP, uIP, Raspberry Pi 3,ICMP,TCP/IP, Socket API, bare-metal programming

References:

User documentation, including an API reference
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/

A description of the source code organization
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_Networking_Tutorial.html

The porting guide
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/FreeRTOS_TCP_Porting.html

License information
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/FreeRTOS_Plus_TCP_License.html

heap_4.c memory allocation scheme
http://www.FreeRTOS.org/a00111.html

Raspberry Pi I/O Shield Spec.

http://blog.ittraining.com.tw/2016/10/raspberry-pi-io-shield-v30.html