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Part of the Pacemaker Project; this models the Pacemaker.
Dependencies: mbed TextLCD mbed-rtos
PacemakerController.cpp@12:ed162e1f7194, 2015-11-30 (annotated)
- Committer:
- lucastai
- Date:
- Mon Nov 30 20:48:50 2015 +0000
- Revision:
- 12:ed162e1f7194
- Parent:
- 9:fd8477284185
- Child:
- 13:2a25dd47478e
APACE,VPACE
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
chadnach1 | 0:d92e0b71c6b5 | 1 | #include "mbed.h" |
lucastai | 2:5e9c4d83d038 | 2 | #include "LPC17xx.h" |
lucastai | 2:5e9c4d83d038 | 3 | #include "TextLCD.h" |
lucastai | 2:5e9c4d83d038 | 4 | #include "rtos.h" |
lucastai | 2:5e9c4d83d038 | 5 | #include "Thread.h" |
lucastai | 2:5e9c4d83d038 | 6 | using namespace rtos; |
chadnach1 | 0:d92e0b71c6b5 | 7 | |
lucastai | 2:5e9c4d83d038 | 8 | |
chadnach1 | 0:d92e0b71c6b5 | 9 | // This is for the pacemaker |
lucastai | 2:5e9c4d83d038 | 10 | volatile unsigned short timer_count; |
lucastai | 2:5e9c4d83d038 | 11 | Serial pc(USBTX, USBRX); |
lucastai | 2:5e9c4d83d038 | 12 | TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x4); // rs, e, d4-d7 |
lucastai | 2:5e9c4d83d038 | 13 | |
mhowar | 5:9eee15818b0e | 14 | int keyboard_needs_numeric = 0; // boolean - is in middle of interval input? |
chadnach1 | 0:d92e0b71c6b5 | 15 | |
chadnach1 | 0:d92e0b71c6b5 | 16 | int h_clock; |
amiche | 3:44d132582373 | 17 | int pm_clock; |
amiche | 3:44d132582373 | 18 | int avi_clock; |
chadnach1 | 0:d92e0b71c6b5 | 19 | |
chadnach1 | 4:f04eb7f96f4b | 20 | int LRI = 1000; |
chadnach1 | 4:f04eb7f96f4b | 21 | int AVI = 150; |
chadnach1 | 4:f04eb7f96f4b | 22 | int PVARP = 300; |
chadnach1 | 4:f04eb7f96f4b | 23 | int VRP = 200; |
lucastai | 2:5e9c4d83d038 | 24 | |
lucastai | 2:5e9c4d83d038 | 25 | // constants |
lucastai | 2:5e9c4d83d038 | 26 | int MAX_PM_RT = 180; |
lucastai | 2:5e9c4d83d038 | 27 | int MIN_PM_RT = 40; |
lucastai | 2:5e9c4d83d038 | 28 | enum mode {NORMAL, SLEEP, EXERCISE, MANUAL}; |
lucastai | 2:5e9c4d83d038 | 29 | |
lucastai | 2:5e9c4d83d038 | 30 | // counters |
lucastai | 2:5e9c4d83d038 | 31 | int beats = 0; |
lucastai | 2:5e9c4d83d038 | 32 | |
lucastai | 2:5e9c4d83d038 | 33 | // state variables |
lucastai | 2:5e9c4d83d038 | 34 | int upper_bound = 100; |
lucastai | 2:5e9c4d83d038 | 35 | int lower_bound = 40; |
lucastai | 2:5e9c4d83d038 | 36 | int obs_int = 10; |
lucastai | 2:5e9c4d83d038 | 37 | mode curr_mode = NORMAL; |
lucastai | 2:5e9c4d83d038 | 38 | |
lucastai | 2:5e9c4d83d038 | 39 | |
lucastai | 2:5e9c4d83d038 | 40 | |
lucastai | 2:5e9c4d83d038 | 41 | // alarms |
lucastai | 2:5e9c4d83d038 | 42 | DigitalOut Apace(LED1); |
lucastai | 2:5e9c4d83d038 | 43 | DigitalOut Vpace(LED2); |
lucastai | 2:5e9c4d83d038 | 44 | DigitalOut Asense(LED3); |
lucastai | 2:5e9c4d83d038 | 45 | DigitalOut Vsense(LED4); |
lucastai | 12:ed162e1f7194 | 46 | DigitalOut apace(p22): |
lucastai | 12:ed162e1f7194 | 47 | DigitalOut vpace(p21): |
lucastai | 2:5e9c4d83d038 | 48 | |
lucastai | 2:5e9c4d83d038 | 49 | // hardware interrupt handler, adapted from code in piazza post by Dagaen |
lucastai | 2:5e9c4d83d038 | 50 | extern "C" void TIMER0_IRQHandler (void) |
lucastai | 2:5e9c4d83d038 | 51 | { |
lucastai | 2:5e9c4d83d038 | 52 | if((LPC_TIM0->IR & 0x01) == 0x01) // if MR0 interrupt, proceed |
lucastai | 2:5e9c4d83d038 | 53 | { |
lucastai | 2:5e9c4d83d038 | 54 | LPC_TIM0->IR |= 1 << 0; // Clear MR0 interrupt flag |
lucastai | 2:5e9c4d83d038 | 55 | timer_count++; //increment timer_count |
lucastai | 2:5e9c4d83d038 | 56 | } |
lucastai | 2:5e9c4d83d038 | 57 | } |
lucastai | 2:5e9c4d83d038 | 58 | |
lucastai | 2:5e9c4d83d038 | 59 | // init the hardware interrupt (timer0), adapted same as above |
lucastai | 2:5e9c4d83d038 | 60 | void timer0_init(void) |
lucastai | 2:5e9c4d83d038 | 61 | { |
lucastai | 2:5e9c4d83d038 | 62 | LPC_SC->PCONP |=1<1; //timer0 power on |
lucastai | 2:5e9c4d83d038 | 63 | LPC_SC-> PCLKSEL0 |= 1 << 2; // set timer clock to CCLCK nondivided (1 clock cycle = 1 increment) |
lucastai | 2:5e9c4d83d038 | 64 | LPC_TIM0->MR0 = 1000000; //100mhz clock cycle, 1 cycle = 10ns, 10ms = 10 000 000 ns = 1M cycles |
lucastai | 2:5e9c4d83d038 | 65 | LPC_TIM0->MCR = 3; //interrupt and reset control |
lucastai | 2:5e9c4d83d038 | 66 | //3 = Interrupt & reset timer0 on match (111) sets all three bits |
lucastai | 2:5e9c4d83d038 | 67 | NVIC_EnableIRQ(TIMER0_IRQn); //enable timer0 interrupt |
chadnach1 | 0:d92e0b71c6b5 | 68 | } |
chadnach1 | 0:d92e0b71c6b5 | 69 | |
lucastai | 2:5e9c4d83d038 | 70 | |
lucastai | 2:5e9c4d83d038 | 71 | void PM_ALARM(void const *argument){ |
lucastai | 2:5e9c4d83d038 | 72 | |
lucastai | 2:5e9c4d83d038 | 73 | // min hr alarm |
lucastai | 2:5e9c4d83d038 | 74 | if( beats < MIN_PM_RT){ |
lucastai | 2:5e9c4d83d038 | 75 | lcd.locate(0,1); |
lucastai | 2:5e9c4d83d038 | 76 | lcd.printf("!<"); |
lucastai | 2:5e9c4d83d038 | 77 | } |
lucastai | 2:5e9c4d83d038 | 78 | |
lucastai | 2:5e9c4d83d038 | 79 | // max hr alarm |
lucastai | 2:5e9c4d83d038 | 80 | if(beats > MAX_PM_RT){ |
lucastai | 2:5e9c4d83d038 | 81 | lcd.locate(0,1); |
lucastai | 2:5e9c4d83d038 | 82 | lcd.printf("!>"); |
lucastai | 2:5e9c4d83d038 | 83 | } |
chadnach1 | 0:d92e0b71c6b5 | 84 | |
chadnach1 | 0:d92e0b71c6b5 | 85 | } |
chadnach1 | 0:d92e0b71c6b5 | 86 | |
lucastai | 2:5e9c4d83d038 | 87 | // hw interrupt callback, deal with the keyboard input from PC |
mhowar | 5:9eee15818b0e | 88 | void keyboard_handler() { |
lucastai | 2:5e9c4d83d038 | 89 | |
lucastai | 2:5e9c4d83d038 | 90 | // get the char, put it on the PC command line |
lucastai | 2:5e9c4d83d038 | 91 | char a = pc.getc(); |
lucastai | 2:5e9c4d83d038 | 92 | |
mhowar | 5:9eee15818b0e | 93 | if (keyboard_needs_numeric) { |
mhowar | 5:9eee15818b0e | 94 | if (a >= '0' && a <= '9') { |
mhowar | 5:9eee15818b0e | 95 | // update observation interval |
mhowar | 9:fd8477284185 | 96 | obs_int = (a - '0' + 1) * 5; |
mhowar | 5:9eee15818b0e | 97 | } else { |
mhowar | 5:9eee15818b0e | 98 | pc.printf("Expected numeric key\n"); |
mhowar | 5:9eee15818b0e | 99 | } |
mhowar | 5:9eee15818b0e | 100 | } else if(a == 'N'){ |
mhowar | 5:9eee15818b0e | 101 | // if the char is N, update bounds to normal mode |
lucastai | 2:5e9c4d83d038 | 102 | curr_mode = NORMAL; |
lucastai | 2:5e9c4d83d038 | 103 | upper_bound = 100; |
lucastai | 2:5e9c4d83d038 | 104 | lower_bound = 40; |
lucastai | 2:5e9c4d83d038 | 105 | pc.printf("MODE IS N\n"); |
lucastai | 2:5e9c4d83d038 | 106 | // if the char is S, set bounds to sleep |
lucastai | 2:5e9c4d83d038 | 107 | }else if (a == 'S'){ |
lucastai | 2:5e9c4d83d038 | 108 | curr_mode = SLEEP; |
lucastai | 2:5e9c4d83d038 | 109 | upper_bound = 60; |
lucastai | 2:5e9c4d83d038 | 110 | lower_bound = 30; |
lucastai | 2:5e9c4d83d038 | 111 | pc.printf("MODE IS S\n"); |
lucastai | 2:5e9c4d83d038 | 112 | // if the char is E, set bounds to exercise |
lucastai | 2:5e9c4d83d038 | 113 | }else if (a == 'E'){ |
lucastai | 2:5e9c4d83d038 | 114 | curr_mode = EXERCISE; |
lucastai | 2:5e9c4d83d038 | 115 | upper_bound = 175; |
lucastai | 2:5e9c4d83d038 | 116 | lower_bound = 100; |
lucastai | 2:5e9c4d83d038 | 117 | pc.printf("MODE IS E\n"); |
lucastai | 2:5e9c4d83d038 | 118 | beats = 2; |
lucastai | 2:5e9c4d83d038 | 119 | // if the char is M, set to manual |
lucastai | 2:5e9c4d83d038 | 120 | }else if (a == 'M'){ |
lucastai | 2:5e9c4d83d038 | 121 | curr_mode = MANUAL; |
lucastai | 2:5e9c4d83d038 | 122 | upper_bound = 175; |
lucastai | 2:5e9c4d83d038 | 123 | lower_bound = 30; |
lucastai | 2:5e9c4d83d038 | 124 | beats = 300; |
lucastai | 2:5e9c4d83d038 | 125 | pc.printf("MODE IS MANUAL\n"); |
lucastai | 2:5e9c4d83d038 | 126 | // check for A if mode is manual |
lucastai | 2:5e9c4d83d038 | 127 | }else if (a == 'A'){ |
lucastai | 2:5e9c4d83d038 | 128 | if(curr_mode == MANUAL){ |
lucastai | 2:5e9c4d83d038 | 129 | pc.printf("MODE IS MANUAL GOT APACE\n"); |
lucastai | 2:5e9c4d83d038 | 130 | } |
lucastai | 2:5e9c4d83d038 | 131 | // check for V is mode is manual |
lucastai | 2:5e9c4d83d038 | 132 | }else if (a == 'V'){ |
lucastai | 2:5e9c4d83d038 | 133 | if(curr_mode == MANUAL){ |
lucastai | 2:5e9c4d83d038 | 134 | pc.printf("MODE IS MANUAL GOT VPACE\n"); |
lucastai | 2:5e9c4d83d038 | 135 | } |
mhowar | 5:9eee15818b0e | 136 | }else if (a == 'O'){ |
mhowar | 5:9eee15818b0e | 137 | keyboard_needs_numeric = 1; |
mhowar | 5:9eee15818b0e | 138 | } else{ |
lucastai | 2:5e9c4d83d038 | 139 | // do nothing for invalid char |
lucastai | 2:5e9c4d83d038 | 140 | } |
lucastai | 2:5e9c4d83d038 | 141 | |
lucastai | 2:5e9c4d83d038 | 142 | |
lucastai | 2:5e9c4d83d038 | 143 | } |
lucastai | 2:5e9c4d83d038 | 144 | |
amiche | 3:44d132582373 | 145 | void pm_sense() { |
chadnach1 | 4:f04eb7f96f4b | 146 | |
chadnach1 | 4:f04eb7f96f4b | 147 | while(1) { |
chadnach1 | 4:f04eb7f96f4b | 148 | |
chadnach1 | 4:f04eb7f96f4b | 149 | if (timer_count >= VRP) { |
chadnach1 | 4:f04eb7f96f4b | 150 | //wait for Vget; |
chadnach1 | 4:f04eb7f96f4b | 151 | timer_count = 0; |
chadnach1 | 4:f04eb7f96f4b | 152 | // do something with Vsense! |
chadnach1 | 4:f04eb7f96f4b | 153 | } else if (timer_count < VRP) { |
chadnach1 | 4:f04eb7f96f4b | 154 | // wait for Vget |
chadnach1 | 4:f04eb7f96f4b | 155 | } |
chadnach1 | 4:f04eb7f96f4b | 156 | |
chadnach1 | 4:f04eb7f96f4b | 157 | if (timer_count < PVARP) { |
chadnach1 | 4:f04eb7f96f4b | 158 | // wait for Aget? |
chadnach1 | 4:f04eb7f96f4b | 159 | } else if (timer_count >= PVARP) { |
chadnach1 | 4:f04eb7f96f4b | 160 | // wait for Aget? |
chadnach1 | 4:f04eb7f96f4b | 161 | // do something with Asense! |
chadnach1 | 4:f04eb7f96f4b | 162 | } |
chadnach1 | 4:f04eb7f96f4b | 163 | |
chadnach1 | 4:f04eb7f96f4b | 164 | } |
amiche | 3:44d132582373 | 165 | } |
amiche | 3:44d132582373 | 166 | |
amiche | 3:44d132582373 | 167 | void pm_response() { |
chadnach1 | 4:f04eb7f96f4b | 168 | |
chadnach1 | 4:f04eb7f96f4b | 169 | while(1) { |
chadnach1 | 4:f04eb7f96f4b | 170 | if (timer_count >= LRI-AVI) { |
chadnach1 | 4:f04eb7f96f4b | 171 | // PM_A! |
chadnach1 | 4:f04eb7f96f4b | 172 | // avi_clk = 0 |
chadnach1 | 4:f04eb7f96f4b | 173 | //apace(); |
chadnach1 | 7:af6c040f0421 | 174 | } else if (timer_count < LRI - AVI) { |
chadnach1 | 7:af6c040f0421 | 175 | // avi_clk = 0 |
chadnach1 | 7:af6c040f0421 | 176 | // wait for Asense? |
chadnach1 | 7:af6c040f0421 | 177 | } |
chadnach1 | 7:af6c040f0421 | 178 | |
chadnach1 | 7:af6c040f0421 | 179 | // At Atrial Event State |
chadnach1 | 7:af6c040f0421 | 180 | |
chadnach1 | 7:af6c040f0421 | 181 | //while (avi_clk < AVI); |
chadnach1 | 7:af6c040f0421 | 182 | |
chadnach1 | 7:af6c040f0421 | 183 | // Ventricular Event |
chadnach1 | 7:af6c040f0421 | 184 | timer_count = 0; |
chadnach1 | 7:af6c040f0421 | 185 | // PM_V! |
chadnach1 | 7:af6c040f0421 | 186 | timer_count = 0; |
chadnach1 | 7:af6c040f0421 | 187 | // VPace! |
chadnach1 | 7:af6c040f0421 | 188 | |
chadnach1 | 7:af6c040f0421 | 189 | |
chadnach1 | 4:f04eb7f96f4b | 190 | } |
amiche | 3:44d132582373 | 191 | } |
lucastai | 2:5e9c4d83d038 | 192 | |
lucastai | 2:5e9c4d83d038 | 193 | |
lucastai | 2:5e9c4d83d038 | 194 | void apace() { |
lucastai | 12:ed162e1f7194 | 195 | apace = 1; |
lucastai | 12:ed162e1f7194 | 196 | Thread::wait(10); |
lucastai | 12:ed162e1f7194 | 197 | apace = 0; |
lucastai | 12:ed162e1f7194 | 198 | |
lucastai | 2:5e9c4d83d038 | 199 | } |
lucastai | 2:5e9c4d83d038 | 200 | |
lucastai | 2:5e9c4d83d038 | 201 | void vpace() { |
lucastai | 12:ed162e1f7194 | 202 | vpace = 1; |
lucastai | 12:ed162e1f7194 | 203 | Thread::wait(10); |
lucastai | 12:ed162e1f7194 | 204 | vpace = 0; |
chadnach1 | 0:d92e0b71c6b5 | 205 | } |
chadnach1 | 0:d92e0b71c6b5 | 206 | |
amiche | 3:44d132582373 | 207 | |
chadnach1 | 0:d92e0b71c6b5 | 208 | int main() { |
mhowar | 5:9eee15818b0e | 209 | https://developer.mbed.org/users/chadnach1/code/PacemakerController/ |
lucastai | 2:5e9c4d83d038 | 210 | // connect the serial device (PC keybd) to the interrupt |
mhowar | 5:9eee15818b0e | 211 | pc.attach(&keyboard_handler); |
lucastai | 2:5e9c4d83d038 | 212 | |
amiche | 3:44d132582373 | 213 | Thread t3(pm_sense); |
amiche | 3:44d132582373 | 214 | Thread t4(pm_response); |
amiche | 3:44d132582373 | 215 | |
amiche | 3:44d132582373 | 216 | Thread t2(PM_ALARM); |
amiche | 3:44d132582373 | 217 | Thread t5(); |
amiche | 3:44d132582373 | 218 | |
chadnach1 | 0:d92e0b71c6b5 | 219 | } |