Communication Driver. More...

#include "gen_com.h"

Functions
void	genCom_init (void)

void	handshakeApp (void)
	Handshake with the desktop application. Blocks until handshake operation is complete. Three-step process: get message from computer, echo that message back, and then receive an acknowledge message from the computer again. More...

void	waitOnRecordMessage (void)
	Block until record message is received. Blocks until the record command is received from the desktop application.

int	stringCompare (char str1, char str2, int len)

Variables
char	handshake_request [5] = "hands"

char	handshake_response [5] = "cnfrm"

char	handshake_ack [5] = "ackng"

char	record_command [5] = "recrd"

Detailed Description

Communication Driver.

This general communication driver implements the communication schema and is designed to be abstracted from the medium-specific communication needs so changing from USB to something else requires minimal modification to this driver.

Author: Kevin Imlay

Date: 2-16-21

Function Documentation

◆ genCom_init()

void genCom_init ( void )

Initialize the general communication module. At this point, only makes sure the serial communication module is initialized.

◆ handshakeApp()

void handshakeApp ( void )

Handshake with the desktop application. Blocks until handshake operation is complete. Three-step process: get message from computer, echo that message back, and then receive an acknowledge message from the computer again.

Function Prototypes

◆ stringCompare()

int stringCompare	(	char *	str1,
		char *	str2,
		int	len
	)

Compares two strings to each other up to a specified length. Identicial to strcmp but terminates on length instead of null character.

Parameters

str1	First string to compare
str2	Second string to compare to the first string.
len	The number of characters to compare

Returns: 0 if strings are equal, not 0 otherwise.

Variable Documentation

◆ handshake_request

char handshake_request[5] = "hands"

Message Strings

Functions