Pacemaker / Mbed 2 deprecated pacemaker_v5

udpated

Dependencies:   TextLCD mbed-rtos mbed

main.cpp@0:3afa00a23ce2, 2014-12-03 (annotated)

Committer:
jfields
Date:
Wed Dec 03 21:20:04 2014 +0000
Revision:
0:3afa00a23ce2
threads for vp, ap

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jfields 0:3afa00a23ce2 1 #include "mbed.h"
jfields 0:3afa00a23ce2 2 #include "rtos.h"
jfields 0:3afa00a23ce2 3 #include "TextLCD.h"
jfields 0:3afa00a23ce2 4 #include <stdio.h>
jfields 0:3afa00a23ce2 5 #include <stdlib.h>
jfields 0:3afa00a23ce2 6
jfields 0:3afa00a23ce2 7 #define RUN 0x1
jfields 0:3afa00a23ce2 8
jfields 0:3afa00a23ce2 9 TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD16x2);
jfields 0:3afa00a23ce2 10 Serial pc (USBTX, USBRX);
jfields 0:3afa00a23ce2 11
jfields 0:3afa00a23ce2 12 // ports
jfields 0:3afa00a23ce2 13 DigitalIn VGet(p11);
jfields 0:3afa00a23ce2 14 DigitalIn AGet(p12);
jfields 0:3afa00a23ce2 15 DigitalOut VPace(p13);
jfields 0:3afa00a23ce2 16 DigitalOut APace(p14);
jfields 0:3afa00a23ce2 17
jfields 0:3afa00a23ce2 18 // LEDs
jfields 0:3afa00a23ce2 19 DigitalOut leds[] = {LED1, LED2, LED3, LED4};
jfields 0:3afa00a23ce2 20 // 1 = VP
jfields 0:3afa00a23ce2 21 // 2 = AP
jfields 0:3afa00a23ce2 22 // 3 = VS
jfields 0:3afa00a23ce2 23 // 4 = AS
jfields 0:3afa00a23ce2 24
jfields 0:3afa00a23ce2 25 // global clocks
jfields 0:3afa00a23ce2 26 Timer ta; // time since a event
jfields 0:3afa00a23ce2 27 Timer tv; // time since v event
jfields 0:3afa00a23ce2 28
jfields 0:3afa00a23ce2 29 // heart rate global vars
jfields 0:3afa00a23ce2 30 int HR = 0;
jfields 0:3afa00a23ce2 31 int beats = 0;
jfields 0:3afa00a23ce2 32 int sampleRate = 10000; // default 10 seconds
jfields 0:3afa00a23ce2 33 int firstSample = 1;
jfields 0:3afa00a23ce2 34
jfields 0:3afa00a23ce2 35 // Normal Values
jfields 0:3afa00a23ce2 36 const int N_PVARP = 325; // ms
jfields 0:3afa00a23ce2 37 const int N_VRP = 300; // ms
jfields 0:3afa00a23ce2 38 const int N_LRI = 857; // ms (= about 70ppm)
jfields 0:3afa00a23ce2 39 const int N_AVI = 65; // ms
jfields 0:3afa00a23ce2 40 const int N_UB = 100; // 100ppm
jfields 0:3afa00a23ce2 41 const int N_LB = 40; // 40ppm
jfields 0:3afa00a23ce2 42
jfields 0:3afa00a23ce2 43 // Heart Values - Normal Mode is default
jfields 0:3afa00a23ce2 44 int PVARP = N_PVARP;
jfields 0:3afa00a23ce2 45 int VRP = N_VRP;
jfields 0:3afa00a23ce2 46 int LRI = N_LRI;
jfields 0:3afa00a23ce2 47 int AVI = N_AVI;
jfields 0:3afa00a23ce2 48 int UB = N_UB;
jfields 0:3afa00a23ce2 49 int LB = N_LB;
jfields 0:3afa00a23ce2 50
jfields 0:3afa00a23ce2 51 // status flags
jfields 0:3afa00a23ce2 52 int isVRP = 0;
jfields 0:3afa00a23ce2 53 int isPVARP = 0;
jfields 0:3afa00a23ce2 54 int waitingForV = 1;
jfields 0:3afa00a23ce2 55
jfields 0:3afa00a23ce2 56 // functions
jfields 0:3afa00a23ce2 57 void VP_func(void const *args);
jfields 0:3afa00a23ce2 58 void AP_func(void const *args);
jfields 0:3afa00a23ce2 59 void VS_func(void const *args);
jfields 0:3afa00a23ce2 60 void AS_func(void const *args);
jfields 0:3afa00a23ce2 61 void manage_flags(void const *i);
jfields 0:3afa00a23ce2 62 void calcHR(void const *args);
jfields 0:3afa00a23ce2 63 void disp(void const *args);
jfields 0:3afa00a23ce2 64 void send_Apace();
jfields 0:3afa00a23ce2 65 void send_Vpace();
jfields 0:3afa00a23ce2 66 void listen_Aget(void const *args);
jfields 0:3afa00a23ce2 67 void listen_Vget(void const *args);
jfields 0:3afa00a23ce2 68 void flashLED(int i);
jfields 0:3afa00a23ce2 69 void blind();
jfields 0:3afa00a23ce2 70 void Aevent();
jfields 0:3afa00a23ce2 71
jfields 0:3afa00a23ce2 72 // threads
jfields 0:3afa00a23ce2 73 Thread * VS_thread;
jfields 0:3afa00a23ce2 74 Thread * AS_thread;
jfields 0:3afa00a23ce2 75 Thread * VP_thread;
jfields 0:3afa00a23ce2 76 Thread * AP_thread;
jfields 0:3afa00a23ce2 77 Thread * VG_thread;
jfields 0:3afa00a23ce2 78 Thread * AG_thread;
jfields 0:3afa00a23ce2 79 Thread * disp_thread;
jfields 0:3afa00a23ce2 80
jfields 0:3afa00a23ce2 81 // rtos timers
jfields 0:3afa00a23ce2 82 RtosTimer * VRP_timer;
jfields 0:3afa00a23ce2 83 RtosTimer * PVARP_timer;
jfields 0:3afa00a23ce2 84 RtosTimer * HR_timer;
jfields 0:3afa00a23ce2 85
jfields 0:3afa00a23ce2 86 int main() {
jfields 0:3afa00a23ce2 87
jfields 0:3afa00a23ce2 88 // start global timer
jfields 0:3afa00a23ce2 89 tv.start();
jfields 0:3afa00a23ce2 90 ta.start();
jfields 0:3afa00a23ce2 91 tv.stop();
jfields 0:3afa00a23ce2 92
jfields 0:3afa00a23ce2 93 // init threads
jfields 0:3afa00a23ce2 94 VS_thread = new Thread(VS_func);
jfields 0:3afa00a23ce2 95 AS_thread = new Thread(AS_func);
jfields 0:3afa00a23ce2 96 VP_thread = new Thread(VP_func);
jfields 0:3afa00a23ce2 97 AP_thread = new Thread(AP_func);
jfields 0:3afa00a23ce2 98 VG_thread = new Thread(listen_Vget);
jfields 0:3afa00a23ce2 99 AG_thread = new Thread(listen_Aget);
jfields 0:3afa00a23ce2 100
jfields 0:3afa00a23ce2 101 // init timers
jfields 0:3afa00a23ce2 102 VRP_timer = new RtosTimer(manage_flags, osTimerOnce, (void *)1);
jfields 0:3afa00a23ce2 103 PVARP_timer = new RtosTimer(manage_flags, osTimerOnce, (void *)2);
jfields 0:3afa00a23ce2 104 HR_timer = new RtosTimer(calcHR, osTimerPeriodic, (void *)0);
jfields 0:3afa00a23ce2 105
jfields 0:3afa00a23ce2 106 // start display and heart rate sample
jfields 0:3afa00a23ce2 107 HR_timer->start(sampleRate);
jfields 0:3afa00a23ce2 108 disp_thread->signal_set(RUN);
jfields 0:3afa00a23ce2 109
jfields 0:3afa00a23ce2 110 // main thread
jfields 0:3afa00a23ce2 111 while (1) {
jfields 0:3afa00a23ce2 112
jfields 0:3afa00a23ce2 113 }
jfields 0:3afa00a23ce2 114 }
jfields 0:3afa00a23ce2 115
jfields 0:3afa00a23ce2 116 void calcHR(void const *args) {
jfields 0:3afa00a23ce2 117 if (firstSample == 1) {
jfields 0:3afa00a23ce2 118 HR = beats*(60000/sampleRate);
jfields 0:3afa00a23ce2 119 firstSample = 0;
jfields 0:3afa00a23ce2 120 }
jfields 0:3afa00a23ce2 121 else {
jfields 0:3afa00a23ce2 122 HR = (beats*60000/sampleRate+HR)/2;
jfields 0:3afa00a23ce2 123 }
jfields 0:3afa00a23ce2 124 disp_thread->signal_set(RUN);
jfields 0:3afa00a23ce2 125 }
jfields 0:3afa00a23ce2 126
jfields 0:3afa00a23ce2 127 void disp(void const *args) {
jfields 0:3afa00a23ce2 128 while (1) {
jfields 0:3afa00a23ce2 129 Thread::signal_wait(RUN,osWaitForever);
jfields 0:3afa00a23ce2 130 lcd.printf("HR = %d ppm\nCyle = %d s\n",HR,sampleRate/1000);
jfields 0:3afa00a23ce2 131 beats = 0;
jfields 0:3afa00a23ce2 132 }
jfields 0:3afa00a23ce2 133 }
jfields 0:3afa00a23ce2 134
jfields 0:3afa00a23ce2 135 void manage_flags(void const *i) {
jfields 0:3afa00a23ce2 136 if ((int)i==1) isVRP = 0;
jfields 0:3afa00a23ce2 137 if ((int)i==2) isPVARP = 0;
jfields 0:3afa00a23ce2 138 }
jfields 0:3afa00a23ce2 139
jfields 0:3afa00a23ce2 140 void AP_func(void const *args) {
jfields 0:3afa00a23ce2 141 while (1) {
jfields 0:3afa00a23ce2 142 if (tv.read_ms() >= (LRI-AVI)) {
jfields 0:3afa00a23ce2 143 Aevent();
jfields 0:3afa00a23ce2 144 send_Apace();
jfields 0:3afa00a23ce2 145 flashLED(2);
jfields 0:3afa00a23ce2 146 }
jfields 0:3afa00a23ce2 147 }
jfields 0:3afa00a23ce2 148 }
jfields 0:3afa00a23ce2 149
jfields 0:3afa00a23ce2 150 void VP_func(void const *args) {
jfields 0:3afa00a23ce2 151 while (1) {
jfields 0:3afa00a23ce2 152 if (ta.read_ms() >= AVI) {
jfields 0:3afa00a23ce2 153 blind();
jfields 0:3afa00a23ce2 154 send_Vpace();
jfields 0:3afa00a23ce2 155 flashLED(1);
jfields 0:3afa00a23ce2 156 }
jfields 0:3afa00a23ce2 157 }
jfields 0:3afa00a23ce2 158 }
jfields 0:3afa00a23ce2 159
jfields 0:3afa00a23ce2 160 void AS_func(void const *args) {
jfields 0:3afa00a23ce2 161 while (1) {
jfields 0:3afa00a23ce2 162 Thread::signal_wait(RUN,osWaitForever);
jfields 0:3afa00a23ce2 163 Aevent();
jfields 0:3afa00a23ce2 164 flashLED(4);
jfields 0:3afa00a23ce2 165 }
jfields 0:3afa00a23ce2 166 }
jfields 0:3afa00a23ce2 167
jfields 0:3afa00a23ce2 168 void VS_func(void const *args) {
jfields 0:3afa00a23ce2 169 while (1) {
jfields 0:3afa00a23ce2 170 Thread::signal_wait(RUN,osWaitForever);
jfields 0:3afa00a23ce2 171 blind();
jfields 0:3afa00a23ce2 172 flashLED(4);
jfields 0:3afa00a23ce2 173 }
jfields 0:3afa00a23ce2 174 }
jfields 0:3afa00a23ce2 175
jfields 0:3afa00a23ce2 176 void listen_Vget(void const *args) {
jfields 0:3afa00a23ce2 177 while (1) {
jfields 0:3afa00a23ce2 178 if (VGet==1) {
jfields 0:3afa00a23ce2 179 if (!isVRP && waitingForV) VS_thread->signal_set(RUN);
jfields 0:3afa00a23ce2 180 while(VGet == 1);
jfields 0:3afa00a23ce2 181 }
jfields 0:3afa00a23ce2 182 }
jfields 0:3afa00a23ce2 183 }
jfields 0:3afa00a23ce2 184
jfields 0:3afa00a23ce2 185 void listen_Aget(void const *args) {
jfields 0:3afa00a23ce2 186 while (1) {
jfields 0:3afa00a23ce2 187 if (AGet == 1) {
jfields 0:3afa00a23ce2 188 if (!isPVARP && !waitingForV) AS_thread->signal_set(RUN);
jfields 0:3afa00a23ce2 189 while(AGet == 1);
jfields 0:3afa00a23ce2 190 }
jfields 0:3afa00a23ce2 191 }
jfields 0:3afa00a23ce2 192 }
jfields 0:3afa00a23ce2 193
jfields 0:3afa00a23ce2 194 void flashLED(int i) {
jfields 0:3afa00a23ce2 195 leds[i-1] = 1;
jfields 0:3afa00a23ce2 196 wait(0.01);
jfields 0:3afa00a23ce2 197 leds[i-1] = 0;
jfields 0:3afa00a23ce2 198 }
jfields 0:3afa00a23ce2 199
jfields 0:3afa00a23ce2 200 void blind() {
jfields 0:3afa00a23ce2 201 tv.start();
jfields 0:3afa00a23ce2 202 ta.reset();
jfields 0:3afa00a23ce2 203 ta.stop();
jfields 0:3afa00a23ce2 204 isVRP = 1;
jfields 0:3afa00a23ce2 205 isPVARP = 1;
jfields 0:3afa00a23ce2 206 VRP_timer->start(VRP);
jfields 0:3afa00a23ce2 207 PVARP_timer->start(PVARP);
jfields 0:3afa00a23ce2 208 beats++;
jfields 0:3afa00a23ce2 209 waitingForV = 0;
jfields 0:3afa00a23ce2 210 }
jfields 0:3afa00a23ce2 211
jfields 0:3afa00a23ce2 212 void Aevent() {
jfields 0:3afa00a23ce2 213 ta.start();
jfields 0:3afa00a23ce2 214 tv.reset();
jfields 0:3afa00a23ce2 215 tv.stop();
jfields 0:3afa00a23ce2 216 waitingForV = 1;
jfields 0:3afa00a23ce2 217 }
jfields 0:3afa00a23ce2 218
jfields 0:3afa00a23ce2 219 void send_Apace() {
jfields 0:3afa00a23ce2 220 APace = 1;
jfields 0:3afa00a23ce2 221 Thread::wait(50);
jfields 0:3afa00a23ce2 222 APace = 0;
jfields 0:3afa00a23ce2 223 }
jfields 0:3afa00a23ce2 224
jfields 0:3afa00a23ce2 225 void send_Vpace() {
jfields 0:3afa00a23ce2 226 VPace = 1;
jfields 0:3afa00a23ce2 227 Thread::wait(50);
jfields 0:3afa00a23ce2 228 VPace = 0;
jfields 0:3afa00a23ce2 229 }