microwave simulator
Dependencies: C12832_lcd LM75B mbed
main.cpp@0:2f825861a3a2, 2013-10-18 (annotated)
- Committer:
- rabad1
- Date:
- Fri Oct 18 20:41:08 2013 +0000
- Revision:
- 0:2f825861a3a2
- Child:
- 1:fac01d40d819
Microwave v0.9
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
rabad1 | 0:2f825861a3a2 | 1 | #include "mbed.h" |
rabad1 | 0:2f825861a3a2 | 2 | |
rabad1 | 0:2f825861a3a2 | 3 | #include "LM75B.h" |
rabad1 | 0:2f825861a3a2 | 4 | #include "C12832_lcd.h" |
rabad1 | 0:2f825861a3a2 | 5 | #include "keypad.h" |
rabad1 | 0:2f825861a3a2 | 6 | |
rabad1 | 0:2f825861a3a2 | 7 | // uncomment to allow DEBUG |
rabad1 | 0:2f825861a3a2 | 8 | #define DEBUG |
rabad1 | 0:2f825861a3a2 | 9 | |
rabad1 | 0:2f825861a3a2 | 10 | #define BUTTON_LEFT (p13) |
rabad1 | 0:2f825861a3a2 | 11 | #define BUTTON_RIGHT (p16) |
rabad1 | 0:2f825861a3a2 | 12 | #define BUTTON_START (p15) |
rabad1 | 0:2f825861a3a2 | 13 | #define BUTTON_STOP (p12) |
rabad1 | 0:2f825861a3a2 | 14 | #define BUTTON_DOOR (p14) |
rabad1 | 0:2f825861a3a2 | 15 | |
rabad1 | 0:2f825861a3a2 | 16 | #define DOOR_CLOSED (0) |
rabad1 | 0:2f825861a3a2 | 17 | #define DOOR_OPEN (1) |
rabad1 | 0:2f825861a3a2 | 18 | |
rabad1 | 0:2f825861a3a2 | 19 | #define LED_OFF (0) |
rabad1 | 0:2f825861a3a2 | 20 | #define LED_ON (1) |
rabad1 | 0:2f825861a3a2 | 21 | |
rabad1 | 0:2f825861a3a2 | 22 | #define TRUE (1) |
rabad1 | 0:2f825861a3a2 | 23 | #define FALSE (0) |
rabad1 | 0:2f825861a3a2 | 24 | |
rabad1 | 0:2f825861a3a2 | 25 | #define MIN_COOKING_TIME (0) // secs |
rabad1 | 0:2f825861a3a2 | 26 | #define MAX_COOKING_TIME (180) |
rabad1 | 0:2f825861a3a2 | 27 | #define COOKING_TIME_INCREMENT (60) |
rabad1 | 0:2f825861a3a2 | 28 | #define MAX_TICKER_TIME (60) |
rabad1 | 0:2f825861a3a2 | 29 | #define WDOG_TIME (1) |
rabad1 | 0:2f825861a3a2 | 30 | |
rabad1 | 0:2f825861a3a2 | 31 | #define WHILE_LOOP_INTERVAL_MS (5) // msec |
rabad1 | 0:2f825861a3a2 | 32 | |
rabad1 | 0:2f825861a3a2 | 33 | #define TEMP_INCREMENT (10.0f) // degC |
rabad1 | 0:2f825861a3a2 | 34 | |
rabad1 | 0:2f825861a3a2 | 35 | typedef enum |
rabad1 | 0:2f825861a3a2 | 36 | { |
rabad1 | 0:2f825861a3a2 | 37 | STATUS_IDLE = 0, |
rabad1 | 0:2f825861a3a2 | 38 | STATUS_COOKING, |
rabad1 | 0:2f825861a3a2 | 39 | STATUS_DONE |
rabad1 | 0:2f825861a3a2 | 40 | } etSTATUS; |
rabad1 | 0:2f825861a3a2 | 41 | |
rabad1 | 0:2f825861a3a2 | 42 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 43 | #define MAX_LATENCY (10) // msec |
rabad1 | 0:2f825861a3a2 | 44 | #define ERROR_MICROWAVE_SM (1L<<0) |
rabad1 | 0:2f825861a3a2 | 45 | #define ERROR_LATENCY_DOOR (1L<<1) |
rabad1 | 0:2f825861a3a2 | 46 | #define ERROR_LATENCY_STOP (1L<<2) |
rabad1 | 0:2f825861a3a2 | 47 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 48 | |
rabad1 | 0:2f825861a3a2 | 49 | // forward declarations |
rabad1 | 0:2f825861a3a2 | 50 | void init_microwave(void); |
rabad1 | 0:2f825861a3a2 | 51 | void press_left(void); |
rabad1 | 0:2f825861a3a2 | 52 | void press_right(void); |
rabad1 | 0:2f825861a3a2 | 53 | void press_start(void); |
rabad1 | 0:2f825861a3a2 | 54 | void press_stop(void); |
rabad1 | 0:2f825861a3a2 | 55 | void press_door(void); |
rabad1 | 0:2f825861a3a2 | 56 | void wdog_update(void); |
rabad1 | 0:2f825861a3a2 | 57 | void update_output(void); |
rabad1 | 0:2f825861a3a2 | 58 | |
rabad1 | 0:2f825861a3a2 | 59 | void microwave_sm(void); // microwave state machine |
rabad1 | 0:2f825861a3a2 | 60 | |
rabad1 | 0:2f825861a3a2 | 61 | // input peripherals |
rabad1 | 0:2f825861a3a2 | 62 | Keypad keypad( BUTTON_LEFT, press_left, // keypad |
rabad1 | 0:2f825861a3a2 | 63 | BUTTON_RIGHT, press_right, |
rabad1 | 0:2f825861a3a2 | 64 | BUTTON_START, press_start, |
rabad1 | 0:2f825861a3a2 | 65 | BUTTON_STOP, press_stop, |
rabad1 | 0:2f825861a3a2 | 66 | BUTTON_DOOR, press_door ); |
rabad1 | 0:2f825861a3a2 | 67 | LM75B tmp(p28,p27); // temperature sensor |
rabad1 | 0:2f825861a3a2 | 68 | |
rabad1 | 0:2f825861a3a2 | 69 | |
rabad1 | 0:2f825861a3a2 | 70 | // output peripherals |
rabad1 | 0:2f825861a3a2 | 71 | C12832_LCD lcd; // LCD screen |
rabad1 | 0:2f825861a3a2 | 72 | DigitalOut cooking_status(LED1); // LED for cooking progress |
rabad1 | 0:2f825861a3a2 | 73 | DigitalOut carousel_status(LED2); // LED for carousel |
rabad1 | 0:2f825861a3a2 | 74 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 75 | DigitalOut debugLED(LED4); // general debug LED |
rabad1 | 0:2f825861a3a2 | 76 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 77 | PwmOut alarm(p26); |
rabad1 | 0:2f825861a3a2 | 78 | |
rabad1 | 0:2f825861a3a2 | 79 | // Timers |
rabad1 | 0:2f825861a3a2 | 80 | Ticker wdog; // 1sec watchdog |
rabad1 | 0:2f825861a3a2 | 81 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 82 | Timer latency_wdog; |
rabad1 | 0:2f825861a3a2 | 83 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 84 | |
rabad1 | 0:2f825861a3a2 | 85 | // global status variables |
rabad1 | 0:2f825861a3a2 | 86 | volatile signed short ssCookingTime; |
rabad1 | 0:2f825861a3a2 | 87 | unsigned char ucDoorStatus = DOOR_CLOSED; |
rabad1 | 0:2f825861a3a2 | 88 | float fTemp = 0.0f; |
rabad1 | 0:2f825861a3a2 | 89 | etSTATUS opStatus; |
rabad1 | 0:2f825861a3a2 | 90 | volatile unsigned char start_requested; |
rabad1 | 0:2f825861a3a2 | 91 | volatile unsigned char stop_requested; |
rabad1 | 0:2f825861a3a2 | 92 | volatile unsigned char temp_ticker; |
rabad1 | 0:2f825861a3a2 | 93 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 94 | unsigned long ulErrorCode = 0UL; |
rabad1 | 0:2f825861a3a2 | 95 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 96 | |
rabad1 | 0:2f825861a3a2 | 97 | int main() |
rabad1 | 0:2f825861a3a2 | 98 | { |
rabad1 | 0:2f825861a3a2 | 99 | unsigned char while_loop_counter = 0; |
rabad1 | 0:2f825861a3a2 | 100 | |
rabad1 | 0:2f825861a3a2 | 101 | init_microwave(); |
rabad1 | 0:2f825861a3a2 | 102 | |
rabad1 | 0:2f825861a3a2 | 103 | while(1) |
rabad1 | 0:2f825861a3a2 | 104 | { |
rabad1 | 0:2f825861a3a2 | 105 | wait_ms(WHILE_LOOP_INTERVAL_MS); |
rabad1 | 0:2f825861a3a2 | 106 | while_loop_counter++; |
rabad1 | 0:2f825861a3a2 | 107 | |
rabad1 | 0:2f825861a3a2 | 108 | microwave_sm(); // execute state machine |
rabad1 | 0:2f825861a3a2 | 109 | |
rabad1 | 0:2f825861a3a2 | 110 | // do not need to update LCD as often |
rabad1 | 0:2f825861a3a2 | 111 | if ( while_loop_counter & 0x20 ) |
rabad1 | 0:2f825861a3a2 | 112 | { |
rabad1 | 0:2f825861a3a2 | 113 | update_output(); |
rabad1 | 0:2f825861a3a2 | 114 | } |
rabad1 | 0:2f825861a3a2 | 115 | } |
rabad1 | 0:2f825861a3a2 | 116 | } |
rabad1 | 0:2f825861a3a2 | 117 | |
rabad1 | 0:2f825861a3a2 | 118 | void init_microwave(void) |
rabad1 | 0:2f825861a3a2 | 119 | { |
rabad1 | 0:2f825861a3a2 | 120 | ssCookingTime = 0L; |
rabad1 | 0:2f825861a3a2 | 121 | cooking_status = LED_OFF; |
rabad1 | 0:2f825861a3a2 | 122 | carousel_status = LED_OFF; |
rabad1 | 0:2f825861a3a2 | 123 | opStatus = STATUS_IDLE; |
rabad1 | 0:2f825861a3a2 | 124 | start_requested = FALSE; |
rabad1 | 0:2f825861a3a2 | 125 | stop_requested = FALSE; |
rabad1 | 0:2f825861a3a2 | 126 | } |
rabad1 | 0:2f825861a3a2 | 127 | |
rabad1 | 0:2f825861a3a2 | 128 | void press_left(void) |
rabad1 | 0:2f825861a3a2 | 129 | { |
rabad1 | 0:2f825861a3a2 | 130 | if ( opStatus == STATUS_DONE ) |
rabad1 | 0:2f825861a3a2 | 131 | { |
rabad1 | 0:2f825861a3a2 | 132 | return; |
rabad1 | 0:2f825861a3a2 | 133 | } |
rabad1 | 0:2f825861a3a2 | 134 | ssCookingTime += COOKING_TIME_INCREMENT; |
rabad1 | 0:2f825861a3a2 | 135 | if ( ssCookingTime >= MAX_COOKING_TIME ) |
rabad1 | 0:2f825861a3a2 | 136 | { |
rabad1 | 0:2f825861a3a2 | 137 | ssCookingTime = MAX_COOKING_TIME; |
rabad1 | 0:2f825861a3a2 | 138 | } |
rabad1 | 0:2f825861a3a2 | 139 | } |
rabad1 | 0:2f825861a3a2 | 140 | |
rabad1 | 0:2f825861a3a2 | 141 | void press_right(void) |
rabad1 | 0:2f825861a3a2 | 142 | { |
rabad1 | 0:2f825861a3a2 | 143 | if ( opStatus != STATUS_IDLE ) |
rabad1 | 0:2f825861a3a2 | 144 | { |
rabad1 | 0:2f825861a3a2 | 145 | return; |
rabad1 | 0:2f825861a3a2 | 146 | } |
rabad1 | 0:2f825861a3a2 | 147 | ssCookingTime -= COOKING_TIME_INCREMENT; |
rabad1 | 0:2f825861a3a2 | 148 | if ( ssCookingTime <= MIN_COOKING_TIME ) |
rabad1 | 0:2f825861a3a2 | 149 | { |
rabad1 | 0:2f825861a3a2 | 150 | ssCookingTime = MIN_COOKING_TIME; |
rabad1 | 0:2f825861a3a2 | 151 | } |
rabad1 | 0:2f825861a3a2 | 152 | } |
rabad1 | 0:2f825861a3a2 | 153 | |
rabad1 | 0:2f825861a3a2 | 154 | void press_start(void) |
rabad1 | 0:2f825861a3a2 | 155 | { |
rabad1 | 0:2f825861a3a2 | 156 | if ( opStatus != STATUS_IDLE ) |
rabad1 | 0:2f825861a3a2 | 157 | { |
rabad1 | 0:2f825861a3a2 | 158 | return; |
rabad1 | 0:2f825861a3a2 | 159 | } |
rabad1 | 0:2f825861a3a2 | 160 | |
rabad1 | 0:2f825861a3a2 | 161 | if ( ssCookingTime && (ucDoorStatus == DOOR_CLOSED) ) |
rabad1 | 0:2f825861a3a2 | 162 | { |
rabad1 | 0:2f825861a3a2 | 163 | start_requested = TRUE; |
rabad1 | 0:2f825861a3a2 | 164 | } |
rabad1 | 0:2f825861a3a2 | 165 | } |
rabad1 | 0:2f825861a3a2 | 166 | |
rabad1 | 0:2f825861a3a2 | 167 | void press_stop(void) |
rabad1 | 0:2f825861a3a2 | 168 | { |
rabad1 | 0:2f825861a3a2 | 169 | if ( opStatus == STATUS_IDLE ) |
rabad1 | 0:2f825861a3a2 | 170 | { |
rabad1 | 0:2f825861a3a2 | 171 | init_microwave(); |
rabad1 | 0:2f825861a3a2 | 172 | return; |
rabad1 | 0:2f825861a3a2 | 173 | } |
rabad1 | 0:2f825861a3a2 | 174 | else |
rabad1 | 0:2f825861a3a2 | 175 | { |
rabad1 | 0:2f825861a3a2 | 176 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 177 | latency_wdog.start(); |
rabad1 | 0:2f825861a3a2 | 178 | #endif |
rabad1 | 0:2f825861a3a2 | 179 | stop_requested = TRUE; |
rabad1 | 0:2f825861a3a2 | 180 | } |
rabad1 | 0:2f825861a3a2 | 181 | } |
rabad1 | 0:2f825861a3a2 | 182 | |
rabad1 | 0:2f825861a3a2 | 183 | void press_door(void) |
rabad1 | 0:2f825861a3a2 | 184 | { |
rabad1 | 0:2f825861a3a2 | 185 | ucDoorStatus = !ucDoorStatus; |
rabad1 | 0:2f825861a3a2 | 186 | if ( opStatus == STATUS_COOKING ) |
rabad1 | 0:2f825861a3a2 | 187 | { |
rabad1 | 0:2f825861a3a2 | 188 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 189 | latency_wdog.start(); |
rabad1 | 0:2f825861a3a2 | 190 | #endif |
rabad1 | 0:2f825861a3a2 | 191 | } |
rabad1 | 0:2f825861a3a2 | 192 | } |
rabad1 | 0:2f825861a3a2 | 193 | |
rabad1 | 0:2f825861a3a2 | 194 | void wdog_update(void) |
rabad1 | 0:2f825861a3a2 | 195 | { |
rabad1 | 0:2f825861a3a2 | 196 | if ( opStatus == STATUS_COOKING ) |
rabad1 | 0:2f825861a3a2 | 197 | { |
rabad1 | 0:2f825861a3a2 | 198 | ssCookingTime--; |
rabad1 | 0:2f825861a3a2 | 199 | |
rabad1 | 0:2f825861a3a2 | 200 | // reset wdog |
rabad1 | 0:2f825861a3a2 | 201 | if ( ssCookingTime ) |
rabad1 | 0:2f825861a3a2 | 202 | { |
rabad1 | 0:2f825861a3a2 | 203 | wdog.attach(wdog_update, 1); |
rabad1 | 0:2f825861a3a2 | 204 | } |
rabad1 | 0:2f825861a3a2 | 205 | |
rabad1 | 0:2f825861a3a2 | 206 | if ( temp_ticker ) |
rabad1 | 0:2f825861a3a2 | 207 | { |
rabad1 | 0:2f825861a3a2 | 208 | temp_ticker--; |
rabad1 | 0:2f825861a3a2 | 209 | } |
rabad1 | 0:2f825861a3a2 | 210 | } |
rabad1 | 0:2f825861a3a2 | 211 | } |
rabad1 | 0:2f825861a3a2 | 212 | |
rabad1 | 0:2f825861a3a2 | 213 | void microwave_sm(void) |
rabad1 | 0:2f825861a3a2 | 214 | { |
rabad1 | 0:2f825861a3a2 | 215 | switch ( opStatus ) |
rabad1 | 0:2f825861a3a2 | 216 | { |
rabad1 | 0:2f825861a3a2 | 217 | case STATUS_IDLE: |
rabad1 | 0:2f825861a3a2 | 218 | fTemp = tmp.read(); |
rabad1 | 0:2f825861a3a2 | 219 | if ( ssCookingTime && !ucDoorStatus && start_requested ) |
rabad1 | 0:2f825861a3a2 | 220 | { |
rabad1 | 0:2f825861a3a2 | 221 | start_requested = FALSE; |
rabad1 | 0:2f825861a3a2 | 222 | wdog.attach(wdog_update, 1); |
rabad1 | 0:2f825861a3a2 | 223 | temp_ticker = (ssCookingTime > MAX_TICKER_TIME) ? MAX_TICKER_TIME : ssCookingTime; |
rabad1 | 0:2f825861a3a2 | 224 | opStatus = STATUS_COOKING; |
rabad1 | 0:2f825861a3a2 | 225 | } |
rabad1 | 0:2f825861a3a2 | 226 | break; |
rabad1 | 0:2f825861a3a2 | 227 | |
rabad1 | 0:2f825861a3a2 | 228 | case STATUS_COOKING: |
rabad1 | 0:2f825861a3a2 | 229 | if ( ucDoorStatus == DOOR_OPEN ) |
rabad1 | 0:2f825861a3a2 | 230 | { |
rabad1 | 0:2f825861a3a2 | 231 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 232 | if (latency_wdog.read_ms() > MAX_LATENCY) |
rabad1 | 0:2f825861a3a2 | 233 | { |
rabad1 | 0:2f825861a3a2 | 234 | ulErrorCode |= ERROR_LATENCY_DOOR; |
rabad1 | 0:2f825861a3a2 | 235 | } |
rabad1 | 0:2f825861a3a2 | 236 | latency_wdog.stop(); |
rabad1 | 0:2f825861a3a2 | 237 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 238 | init_microwave(); |
rabad1 | 0:2f825861a3a2 | 239 | } |
rabad1 | 0:2f825861a3a2 | 240 | else if ( stop_requested ) |
rabad1 | 0:2f825861a3a2 | 241 | { |
rabad1 | 0:2f825861a3a2 | 242 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 243 | if (latency_wdog.read_ms() > MAX_LATENCY) |
rabad1 | 0:2f825861a3a2 | 244 | { |
rabad1 | 0:2f825861a3a2 | 245 | ulErrorCode |= ERROR_LATENCY_STOP; |
rabad1 | 0:2f825861a3a2 | 246 | } |
rabad1 | 0:2f825861a3a2 | 247 | latency_wdog.stop(); |
rabad1 | 0:2f825861a3a2 | 248 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 249 | init_microwave(); |
rabad1 | 0:2f825861a3a2 | 250 | } |
rabad1 | 0:2f825861a3a2 | 251 | else |
rabad1 | 0:2f825861a3a2 | 252 | { |
rabad1 | 0:2f825861a3a2 | 253 | if ( !ssCookingTime ) |
rabad1 | 0:2f825861a3a2 | 254 | { |
rabad1 | 0:2f825861a3a2 | 255 | opStatus = STATUS_DONE; |
rabad1 | 0:2f825861a3a2 | 256 | } |
rabad1 | 0:2f825861a3a2 | 257 | else if ( !temp_ticker ) |
rabad1 | 0:2f825861a3a2 | 258 | { |
rabad1 | 0:2f825861a3a2 | 259 | fTemp += TEMP_INCREMENT; |
rabad1 | 0:2f825861a3a2 | 260 | temp_ticker = (ssCookingTime > MAX_TICKER_TIME) ? MAX_TICKER_TIME : ssCookingTime; |
rabad1 | 0:2f825861a3a2 | 261 | } |
rabad1 | 0:2f825861a3a2 | 262 | } |
rabad1 | 0:2f825861a3a2 | 263 | break; |
rabad1 | 0:2f825861a3a2 | 264 | |
rabad1 | 0:2f825861a3a2 | 265 | case STATUS_DONE: |
rabad1 | 0:2f825861a3a2 | 266 | if ( ucDoorStatus == DOOR_OPEN || stop_requested ) |
rabad1 | 0:2f825861a3a2 | 267 | { |
rabad1 | 0:2f825861a3a2 | 268 | init_microwave(); |
rabad1 | 0:2f825861a3a2 | 269 | } |
rabad1 | 0:2f825861a3a2 | 270 | break; |
rabad1 | 0:2f825861a3a2 | 271 | |
rabad1 | 0:2f825861a3a2 | 272 | default: |
rabad1 | 0:2f825861a3a2 | 273 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 274 | // something is wrong if we got here! |
rabad1 | 0:2f825861a3a2 | 275 | ulErrorCode |= ERROR_MICROWAVE_SM; |
rabad1 | 0:2f825861a3a2 | 276 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 277 | break; |
rabad1 | 0:2f825861a3a2 | 278 | } |
rabad1 | 0:2f825861a3a2 | 279 | } |
rabad1 | 0:2f825861a3a2 | 280 | |
rabad1 | 0:2f825861a3a2 | 281 | void update_output(void) |
rabad1 | 0:2f825861a3a2 | 282 | { |
rabad1 | 0:2f825861a3a2 | 283 | static unsigned char toggle_alarm = 0; |
rabad1 | 0:2f825861a3a2 | 284 | static etSTATUS previousState = (etSTATUS) 0xFF; |
rabad1 | 0:2f825861a3a2 | 285 | |
rabad1 | 0:2f825861a3a2 | 286 | // clear the screen only when we transition states to prevent flicker |
rabad1 | 0:2f825861a3a2 | 287 | if ( previousState != opStatus ) |
rabad1 | 0:2f825861a3a2 | 288 | { |
rabad1 | 0:2f825861a3a2 | 289 | lcd.cls(); |
rabad1 | 0:2f825861a3a2 | 290 | previousState = opStatus; |
rabad1 | 0:2f825861a3a2 | 291 | } |
rabad1 | 0:2f825861a3a2 | 292 | lcd.locate(0,0); |
rabad1 | 0:2f825861a3a2 | 293 | lcd.printf("Cooking Time: %3d secs\n",ssCookingTime); |
rabad1 | 0:2f825861a3a2 | 294 | |
rabad1 | 0:2f825861a3a2 | 295 | switch ( opStatus ) |
rabad1 | 0:2f825861a3a2 | 296 | { |
rabad1 | 0:2f825861a3a2 | 297 | case STATUS_IDLE: |
rabad1 | 0:2f825861a3a2 | 298 | // alarm should be off in this state |
rabad1 | 0:2f825861a3a2 | 299 | toggle_alarm = 0; |
rabad1 | 0:2f825861a3a2 | 300 | alarm = 0.0; |
rabad1 | 0:2f825861a3a2 | 301 | break; |
rabad1 | 0:2f825861a3a2 | 302 | |
rabad1 | 0:2f825861a3a2 | 303 | case STATUS_COOKING: |
rabad1 | 0:2f825861a3a2 | 304 | // display temp |
rabad1 | 0:2f825861a3a2 | 305 | lcd.locate(0,10); |
rabad1 | 0:2f825861a3a2 | 306 | lcd.printf("Temp: %.2f degC\n", fTemp); |
rabad1 | 0:2f825861a3a2 | 307 | |
rabad1 | 0:2f825861a3a2 | 308 | // update LEDs |
rabad1 | 0:2f825861a3a2 | 309 | cooking_status = !cooking_status; |
rabad1 | 0:2f825861a3a2 | 310 | carousel_status = !carousel_status; |
rabad1 | 0:2f825861a3a2 | 311 | |
rabad1 | 0:2f825861a3a2 | 312 | // alarm should be off in this state |
rabad1 | 0:2f825861a3a2 | 313 | toggle_alarm = 0; |
rabad1 | 0:2f825861a3a2 | 314 | alarm = 0.0; |
rabad1 | 0:2f825861a3a2 | 315 | break; |
rabad1 | 0:2f825861a3a2 | 316 | |
rabad1 | 0:2f825861a3a2 | 317 | case STATUS_DONE: |
rabad1 | 0:2f825861a3a2 | 318 | // LEDs off in this state |
rabad1 | 0:2f825861a3a2 | 319 | cooking_status = LED_OFF; |
rabad1 | 0:2f825861a3a2 | 320 | carousel_status = LED_OFF; |
rabad1 | 0:2f825861a3a2 | 321 | |
rabad1 | 0:2f825861a3a2 | 322 | // sound alarm |
rabad1 | 0:2f825861a3a2 | 323 | toggle_alarm++; |
rabad1 | 0:2f825861a3a2 | 324 | if ( toggle_alarm & 8 ) |
rabad1 | 0:2f825861a3a2 | 325 | { |
rabad1 | 0:2f825861a3a2 | 326 | alarm.period(1.0/5000); |
rabad1 | 0:2f825861a3a2 | 327 | alarm = 0.5; |
rabad1 | 0:2f825861a3a2 | 328 | } |
rabad1 | 0:2f825861a3a2 | 329 | else |
rabad1 | 0:2f825861a3a2 | 330 | { |
rabad1 | 0:2f825861a3a2 | 331 | alarm = 0.0; |
rabad1 | 0:2f825861a3a2 | 332 | } |
rabad1 | 0:2f825861a3a2 | 333 | |
rabad1 | 0:2f825861a3a2 | 334 | lcd.locate(0,10); |
rabad1 | 0:2f825861a3a2 | 335 | lcd.printf("ENJOY YOUR MEAL!\n"); |
rabad1 | 0:2f825861a3a2 | 336 | break; |
rabad1 | 0:2f825861a3a2 | 337 | } |
rabad1 | 0:2f825861a3a2 | 338 | lcd.locate(0,23); |
rabad1 | 0:2f825861a3a2 | 339 | lcd.printf("door %s\n", ucDoorStatus ? "open " : "closed"); |
rabad1 | 0:2f825861a3a2 | 340 | #ifdef DEBUG |
rabad1 | 0:2f825861a3a2 | 341 | lcd.locate(95,23); |
rabad1 | 0:2f825861a3a2 | 342 | lcd.printf("0x%04X\n", ulErrorCode); |
rabad1 | 0:2f825861a3a2 | 343 | #endif /* DEBUG */ |
rabad1 | 0:2f825861a3a2 | 344 | } |