Timer

providing timing related functionalities More...

Files
file	el_timer.h

Detailed Description

providing timing related functionalities

Introduction

Timer is the object associated with many features involving timing.

Example Usage

Example 3 in the repository demonstrates how to use timers to measure the fps of the camera. Here, more examples of using timer are introduced.

Note: In the following examples, the code section is within a process.

Communication with a Time Window

...
el_bool IsInDebugMode;
el_handle T;
char c;

elu_println("<send 'g' in 5 sec to enter debug mode>");

T = el_create_timer();
el_timer_set_periodic(T,false);
el_timer_start(T,5000);

IsInDebugMode = false;
while( el_timer_get_rounds(T) == 0 ){
    if( el_uart_get_char_counter(EL_UART_1) > 0 ){
        c = el_uart_get_char(EL_UART_1);
        if( c == 'g' ){
            IsInDebugMode = true;
            break;
        }
    }
    el_process_cooperate();
}

el_delete_timer(T);
T = NULL;

if(IsInDebugMode){
    elu_println("proceed in debug mode");
}else{
    elu_println("proceed in normal mode");
}

/*
In run time, if nothing is sent in 5 sec, the program reaches here with 
IsInDebugMode being false. Otherwise, IsInDebugMode would be true.  
*/
...