Frontend usart interface

USART protocol for talking with frontend

HELP

- debug command, prints out command and description of usage for all commands registered

Example format (THESE ARENT REAL COMMANDS)

help: prints command output and description for all commands
dump_debug: starts writing raw adc data to terminal
listknownmessages_gui: returns a list of indices of messages the board knows about

list_indicies_of_known_messages

A returns a space separated list of indicies of every index of every known messages. Each message recieved/put out gets a per-board index.

Example format

print_message [int n]

Prints a pgp-like formatted message stored in the stm's memeory

send_message_to_board

Puts the board into uart multi-line receiving mode, interface will send the string content of a message, maybe format it to handle required feilds.

The gui will then write out the message content to be sent out by the board

load_callsign_into_board

Puts board into one line uart receiving mode, then the gui enters a callsign as text, to be sent out at the end of each message per fcc