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Example Programs
/////////////////////////////////////////////////////////////////
#include <18F452.h>
#use delay(clock=20000000)
#use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7)
#use rtos(timer=0,minor_cycle=100ms,statistics)
// This structure must be defined inorder to retrieve the statistical
// information
struct rtos_stats {
int32 task_total_ticks;
int16 task_min_ticks;
int16 task_max_ticks;
int16 hns_per_tick;
// number of ticks the task has used
// the minimum number of ticks used
// the maximum number of ticks ueed
// us = (ticks*hns_per_tic)/10
};
#task(rate=1000ms,max=100ms)
void The_first_rtos_task ( );
#task(rate=1000ms,max=100ms)
void The_second_rtos_task ( );
void The_first_rtos_task ( ) {
struct rtos_stats stats;
rtos_stats(The_second_rtos_task,&stats);
printf ( "\n\r" );
printf ( "task_total_ticks : %Lius\n\r" ,
(int32)(stats.task_total_ticks)*stats.hns_per_tick );
printf ( "task_min_ticks
: %Lius\n\r" ,
(int32)(stats.task_min_ticks)*stats.hns_per_tick );
printf ( "task_max_ticks
: %Lius\n\r" ,
(int32)(stats.task_max_ticks)*stats.hns_per_tick );
printf ("\n\r");
}
void The_second_rtos_task ( ) {
int i, count = 0;
while(TRUE) {
if(rtos_overrun(the_second_rtos_task)) {
printf("The Second Task has Overrun\n\r\n\r");
count=0;
}
else
count++;
for(i=0;i<count;i++)
delay_ms(50);
rtos_yield();
}
}
void main ( ) {
rtos_run ( );
}
/////////////////////////////////////////////////////////////////
///
This file demonstrates how to create a basic command
///
///
line using the serial port withought having to stop
///
///
///
///
RTOS operation, this can also be considered a
semi kernal for the RTOS.
///
///
///
363
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