main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 #include "TextLCD.h"
00004 #include <time.h>
00005 
00006 TextLCD lcd(p15,p16,p17,p18,p19,p20,TextLCD::LCD16x2);
00007 Serial pc(USBTX, USBRX); //set up serial
00008 DigitalOut natAPace(LED1); //leds for pacing
00009 DigitalOut natVPace(LED2);
00010 DigitalOut aPace(LED3);
00011 DigitalOut vPace(LED4);
00012 DigitalOut alarm(p5); //pin for alarm
00013 
00014 InterruptIn a_Pace(p8);
00015 InterruptIn v_Pace(p9);
00016 
00017 DigitalOut a_signal(p6); //connected to pm
00018 DigitalOut v_signal(p7); //connected to pm
00019 
00020 unsigned volatile int a_time = 0;
00021 unsigned volatile int v_time = 0;
00022 
00023 int mode = 0; //0 = random, 1 = manual, 2 = test
00024 int changeModes = 0;
00025 
00026 //constants
00027 
00028 const int minwait_A = 10; //all in msec
00029 const int minwait_V = 20;
00030 const int LRI = 1000;
00031 const int VRP = 400;
00032 const int PVARP = 500;
00033 const int URI = 1000;
00034 const int AVI = 100;
00035 
00036 
00037 
00038 void send_aSignal() {
00039     a_signal = 1;
00040     natAPace = 1;
00041     wait(1);
00042     a_signal = 0;
00043     natAPace = 0;
00044 }
00045 
00046 void send_vSignal() {
00047     v_signal = 1;
00048     natVPace = 1;
00049     wait(1);
00050     v_signal = 0;   
00051     natVPace = 0;
00052 }
00053 
00054 void test_mode() {
00055     
00056 }
00057 
00058 void random_mode() {
00059     pc.printf("in Random Mode");
00060     while(mode == 0) { //only running while in random mode
00061        
00062         int aWait = rand()%2000 + minwait_A;
00063         pc.printf("a wait: %d\n", aWait);
00064         int vWait = rand()%2000 + minwait_V;
00065         pc.printf("v wait: %d\n", vWait);
00066         
00067         //wait for time to go
00068         pc.printf("going into a while loop");
00069         a_time = 0;
00070         while(a_time < aWait);
00071         pc.printf("left a while loop");
00072         send_aSignal();
00073         vWait += v_time; //get current timeV
00074         //wait for v_time
00075         pc.printf("going into v while loop");
00076         v_time = 0;
00077         while(v_time < vWait) {continue;}
00078         pc.printf("left v while loop");
00079         send_vSignal();
00080         v_time = 0;
00081     }
00082 }
00083 
00084 void switch_modes() {
00085     while(true) {
00086         if(changeModes) {
00087             pc.printf("passed if statement");
00088             switch(mode) {
00089                 case 0: //becomes random
00090                     pc.printf("in random");
00091                     changeModes = 0;
00092                     random_mode();
00093                     break;
00094                 case 1: //becomes manual
00095                     pc.printf("in manual");
00096                     changeModes = 0;
00097                     //don't need to do anything
00098                     break;
00099                 case 2: //becomes test
00100                     pc.printf("in test");
00101                     changeModes = 0;
00102                     test_mode();
00103                     break;
00104                 
00105             }
00106             //thread switch modes delay
00107             Thread::wait(1000);
00108         }
00109     }    
00110 
00111 }
00112 
00113 
00114 void received_apace() {
00115     //TODO: DO 
00116     aPace = 1;
00117 }
00118 
00119 void received_vpace() {
00120     //TODO: DO
00121     vPace = 1;
00122 }
00123 
00124 void heart_keyboard() {
00125     while(true) { //thread is continuously running
00126             if(pc.readable()) {
00127                 char c = pc.getc();
00128                 switch(c) {
00129                     case 'r': //set to random mode
00130                         pc.printf("setting random mode");
00131                         mode = 0;
00132                         changeModes = 1;
00133                         break;
00134                     case 'm': //set to manual mode
00135                         pc.printf("setting manual mode");
00136                         mode = 1;
00137                         changeModes = 1;
00138                         break;
00139                     case 't': //set to test mode
00140                         pc.printf("setting test mode");
00141                         mode = 2;
00142                         changeModes = 1;
00143                         break;
00144                     case 'a': //asignal
00145                         if(mode) { //only if in manual (heart_mode == 1)
00146                             pc.printf("pacing a manual");
00147                             send_aSignal();
00148                         }
00149                         break;
00150                     case 'v': //vsignal
00151                         if(mode) { //only if in manual (heart_mode == 1)
00152                             pc.printf("pacing v manual");
00153                             send_vSignal();
00154                         }
00155                         break; 
00156                     default: //erroneous key get rid of it
00157                         break;
00158                 }
00159             }
00160     }
00161 }
00162 
00163 void tick() {
00164     while(true) {
00165         a_time++;  
00166         v_time++;
00167         Thread::wait(1);
00168     } 
00169 }
00170 
00171 
00172 int main() {
00173     //TODO: Set up threads
00174     srand(time(NULL));
00175     pc.printf("setting up serial");
00176     a_Pace.rise(&received_apace);
00177     v_Pace.rise(&received_vpace);
00178     
00179     Thread* keyboard = new Thread(heart_keyboard);
00180     Thread* ticker = new Thread(tick, osPriorityHigh);
00181     Thread* mode = new Thread(switch_modes);
00182     
00183 }