A demo of a simple state machine

A simple state machine of three states is implemented in this example both switch statement and function pointers. This example is compiled for the Bluey board. The state machine is as shown in the diagram below. Note that button in the diagram means the release of the button. More...

Typedefs
typedef void(*	state_process) (void)
	The type of function pointer that'll be used by the processing functions of the three states.

Enumerations
enum	sm_states
	The three states of the state machine.

Functions
void	repeat_handler (void)
	5s timeout handler used to go from green to red state or red to off state.
bool	button_check (void)
	Function that returns if the button was released from the previous time it was called. More...
void	green_process (void)
	Green state process checks if there is a button press to reset the timer.
void	off_process (void)
	Off state process checks if there is a button press to go to red state.
void	red_process (void)
	Red state process checks if there is a button press to go to green state.
int	main (void)
	Function for application main entry.

Detailed Description

Function Documentation

button_check()

bool button_check

(

void

)

Returns

True if a button release happened, else false

Definition at line 106 of file main.c.

References BUTTONS_ACTIVE_STATE.

Referenced by green_process(), off_process(), and red_process().