README.md

Packet Exchange over the network of devices

• In a connected network, multiple devices exchange information and the data must be formatted into a packet before it is sent over the air.
• The types of data exchanged can be some information, alerts, requests and responses.
• It is possible that data might get corrupted or lost before it reaches the destination.

Challenge-3a

• Understand the given code which is part of the packertiser.c and packetiser.h file
• crc16.c and checksum.h are only used for crc calculations and no need to understand the code.

    status_t packetiser(packet_t* result_packet, uint8_t* data, uint8_t data_length);

    status_t crc_calculator(uint8_t* data, uint8_t data_length);

    void display_packet(packet_t* input_packet);

    status_t verify_crc(packet_t* input_packet);

Challenge-3b

• Write additional functions to use the code to generate different types of Packets
• Ex: Request packets, Response packets, Alert packets, Information packets
• You can create your own formats within data section of the packet_t for different packet types

Challenge-3c

• Test all the functions written using Unit testing framework
• Use Unity as a framework for unit testing

Resources to learn usage of Unity

• Simple usage of Unity functions
• Factorial example
• PhoneBook example