File content as of revision 22:365d51eb3783:

#include "mbed.h"
#include "LPC17xx.h"
#include "TextLCD.h"
#include "rtos.h"
#include "Thread.h"

DigitalOut vsense(p23);
DigitalOut asense(p24);
DigitalIn apace(p22):
DigitalIn vpace(p21):

int timer_count;
int curr_test;
int obs_int;

Timer t;

struct mode{RANDOM,MANUAL,TEST};

// state variables
mode current_mode = RANDOM;

int[][] testfunc;

void random_heart(){
    t.reset();
    t.start();
    
    while(curr_mode == NORMAL){
        if(rand()% 2 == 1){
            if(t.read() < minwaitA){
                asense = 1;
                Thread::wait(10);
                asense = 0;
            }
        }else{
            if(t.read() < minwaitV){
                vsense = 1;
                Thread::wait(10);
                vsense = 0;
            }
            
        } 
    }
}


void man_interrupt(){
    char a = pc.getc();
    
    if (keyboard_needs_numeric) {
        if (a >= '0' && a <= '9') {
            // update observation interval
            obs_int = (a - '0' + 1) * 5;
        } else {
            pc.printf("Expected numeric key\n");    
        }
        keyboard_needs_numeric = 0;
    }else if(a == 'N'){
        curr_mode = NORMAL;
    }else if (a == 'M'){
        curr_mode = MANUAL;
    }else if (a == 'T'){
        curr_mode = TEST;
    }else if (a == 'O'){
        keyboard_needs_number = 1;
    }
    
    if(curr_mode == MANUAL){
           if(a == 'A'){
               asense = 1;
               Thread::wait(10);
               asense = 0;
            }else if(a == "V"){
               vsense = 1;
               Thread::wait(10);
               vsense = 0;
            }    
    }
    
    keyboard_needs_number = 0;   
    
}

// interrupt function
void interrupt_and_run_test(){
    // zero timer, set for 1ms interrupt
    timer0_init(100000)
    
    // wait for atrial pulse
    while(apace != 1}{}
    
    // check if timer was within event
    
    if(timer_count < testfunc[curr_test][0]){
        printf("ATRIAL PULSE FOR TEST " + curr_test + " WAS WITHIN BOUNDS\n");
    }
    
    // send vsense
    
    while(timer_count < testfunc[curr_test][1]){};
    vpace = 1;
    
    // send asense
    while(timer_count < testfunc[curr_test][2]){};
    apace = 1;
    
    // check if timer was in event

    // wait for vpace
    
    // wait for atrial pulse
    while(vpace != 1}{}
    
    // check if timer was within event
    
    if(timer_count < testfunc[curr_test][0]){
        printf("VENT PULSE FOR TEST " + curr_test + " WAS WITHIN BOUNDS\n");
    }