Mike Moore / Mbed 2 deprecated RTOS_HW_07

homework 7

Dependencies:   mbed-rtos mbed C12832_lcd LM75B

main.cpp@88:0b1b812945eb, 2013-09-12 (annotated)

Committer:
gatedClock
Date:
Thu Sep 12 15:02:17 2013 +0000
Revision:
88:0b1b812945eb
Parent:
87:147e2b08fae6
Child:
89:290c96cd027f
countdown neatening.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gatedClock 0:fcca4db7b32a 1 /*----------------------------------------------//------------------------------
gatedClock 0:fcca4db7b32a 2 student : m-moore
gatedClock 0:fcca4db7b32a 3 class : rtos
gatedClock 10:2b0a9fc39109 4 directory : RTOS_HW_07
gatedClock 0:fcca4db7b32a 5 file : main.cpp
gatedClock 0:fcca4db7b32a 6 ----description---------------------------------//------------------------------
gatedClock 70:7c0743c28b11 7 gotchyas
gatedClock 70:7c0743c28b11 8 1. using pc.printf inside a ticker routine will freeze the routine.
gatedClock 71:4a5f256ecf7c 9 2. using queues (get, put) will not work within a ticker routine.
gatedClock 76:74c454c9d75b 10 3. Ticker has a bug. http://mbed.org/questions/1563/Mbed-Tickerfunction-hangs-system-from-re/
gatedClock 80:e3e1a2161435 11
gatedClock 80:e3e1a2161435 12 improvements
gatedClock 80:e3e1a2161435 13 countdown timer needs to be sync'd to start button press.
gatedClock 87:147e2b08fae6 14 this could not be done, use granularity setting instead.
gatedClock 80:e3e1a2161435 15
gatedClock 80:e3e1a2161435 16
gatedClock 0:fcca4db7b32a 17 -----includes-----------------------------------//----------------------------*/
gatedClock 0:fcca4db7b32a 18 #include "mbed.h" // mbed class.
gatedClock 10:2b0a9fc39109 19 #include "rtos.h" // rtos class.
gatedClock 39:4e7e4d935a87 20 #include "LM75B.h" // thermometer class.
gatedClock 10:2b0a9fc39109 21 #include "C12832_lcd.h" // LCD class.
gatedClock 0:fcca4db7b32a 22 //---defines------------------------------------//------------------------------
gatedClock 9:cfdb9aa5857c 23 #define LCD1 lcd.locate(0, 0); // LCD line 1.
gatedClock 9:cfdb9aa5857c 24 #define LCD2 lcd.locate(0,11); // LCD line 2.
gatedClock 9:cfdb9aa5857c 25 #define LCD3 lcd.locate(0,22); // LCD line 3.
gatedClock 9:cfdb9aa5857c 26
gatedClock 10:2b0a9fc39109 27
gatedClock 66:4a0006fa5cc1 28 #define DEBOUNCEmS 16 // debounce wait in mS.
gatedClock 19:92b11e30aaaf 29 #define uS_TIMEOUT 100 // Timer uS timeout.
gatedClock 19:92b11e30aaaf 30 #define LBSIG 1 // left button signal code.
gatedClock 33:34c1bef3c4ff 31 #define PIPEuS 1000 // pipeline clock period.
gatedClock 19:92b11e30aaaf 32 #define SLOWCLOCKuS 500000 // slow-clock period.
gatedClock 39:4e7e4d935a87 33 #define TEMPCLOCKS 1 // temperature-measuring period in S.
gatedClock 26:bff592483cb1 34 #define PIPEDATASIZE 8 // dimension of tPipeData.
gatedClock 44:d16e813e61ef 35 #define THREAD_1_WAITmS 400 // thread 1 wait in mS.
gatedClock 67:1d9c85a4c3c1 36 #define THREAD_2_WAITmS 20 // LCD thread wait.
gatedClock 67:1d9c85a4c3c1 37 #define THREAD_3_WAITmS 80 // thread 3 wait in mS.
gatedClock 66:4a0006fa5cc1 38 #define THREAD_4_WAITmS 1 // thread 4 wait in mS.
gatedClock 78:7df160e0db7b 39 #define THREAD_5_WAITmS 1 // FSM thread wait.
gatedClock 44:d16e813e61ef 40 #define HB_MODULO 1024 // heartbeat modulo divisor.
gatedClock 50:2928c3cbdcc3 41
gatedClock 54:b0e7352d2516 42 #define MSG_INC_TIME 0x01
gatedClock 54:b0e7352d2516 43 #define MSG_DEC_TIME 0x02
gatedClock 58:ec630b6dd9b1 44 #define MSG_START 0x04
gatedClock 58:ec630b6dd9b1 45 #define MSG_STOP 0x08
gatedClock 58:ec630b6dd9b1 46 #define MSG_OPEN 0x10
gatedClock 58:ec630b6dd9b1 47 #define MSG_CLOSED 0x20
gatedClock 57:0432c68ad232 48
gatedClock 78:7df160e0db7b 49 #define FSM_IDLE 0x01 // cook-state state-machine.
gatedClock 78:7df160e0db7b 50 #define FSM_COOK 0x02 // cook-state state-machine.
gatedClock 78:7df160e0db7b 51 #define FSM_PAUSE 0x04 // cook-state state-machine.
gatedClock 78:7df160e0db7b 52 #define FSM_CONTINUE 0x08 // cook-state state-machine.
gatedClock 78:7df160e0db7b 53 #define FSM_DONE 0x10 // cook-state state-machine.
gatedClock 65:e39360da5929 54
gatedClock 71:4a5f256ecf7c 55 #define RT_PRELOAD 0x01 // remaining-time preload.
gatedClock 71:4a5f256ecf7c 56 #define RT_DECREMENT 0x02 // remaining-time decrement.
gatedClock 71:4a5f256ecf7c 57 #define RT_PAUSE 0x03 // remaining-time don't change.
gatedClock 71:4a5f256ecf7c 58 #define RT_CLEAR 0x04 // remaining-time set to zero.
gatedClock 71:4a5f256ecf7c 59
gatedClock 86:388c2b4b7cf5 60 #define GRANULARITY 0x400 // 1-second countdown ticker granularity.
gatedClock 88:0b1b812945eb 61 #define MAXSECONDS 180 // maximum microwave-on time.
gatedClock 86:388c2b4b7cf5 62
gatedClock 65:e39360da5929 63 #define DEBUG1 // debug preprocessor control.
gatedClock 0:fcca4db7b32a 64 //--global_definitions--------------------------//------------------------------
gatedClock 26:bff592483cb1 65 struct tButtons // button ISR updates.
gatedClock 26:bff592483cb1 66 {
gatedClock 26:bff592483cb1 67 char cLeftButton; // cooktime +60S.
gatedClock 26:bff592483cb1 68 char cRightButton; // cooktime -60S.
gatedClock 26:bff592483cb1 69 char cTopButton; // start cook.
gatedClock 26:bff592483cb1 70 char cBottomButton; // stop cook.
gatedClock 58:ec630b6dd9b1 71 char cCenterButton; // center button pressed.
gatedClock 53:8c2baf5623c8 72 char cDoorOpen; // door open.
gatedClock 26:bff592483cb1 73 };
gatedClock 34:b449d2a7c786 74
gatedClock 71:4a5f256ecf7c 75 struct tRemainingTime // remaining time related.
gatedClock 71:4a5f256ecf7c 76 {
gatedClock 71:4a5f256ecf7c 77 char cControl; // countdown control.
gatedClock 71:4a5f256ecf7c 78 int dTotalTime; // initialize to this.
gatedClock 71:4a5f256ecf7c 79 int dRemainingTime; // the countdown value.
gatedClock 71:4a5f256ecf7c 80 };
gatedClock 71:4a5f256ecf7c 81
gatedClock 80:e3e1a2161435 82 struct tLCD // LCD related.
gatedClock 80:e3e1a2161435 83 {
gatedClock 80:e3e1a2161435 84 int dTotalCookTime; // display time in seconds.
gatedClock 80:e3e1a2161435 85 int dRemainingTime; // display time in seconds.
gatedClock 80:e3e1a2161435 86 float fCelsius; // temperature in celsius.
gatedClock 80:e3e1a2161435 87 };
gatedClock 80:e3e1a2161435 88
gatedClock 80:e3e1a2161435 89
gatedClock 80:e3e1a2161435 90
gatedClock 61:8026a9fc0cf1 91 Queue<int, 1> queueModTotalTime; // message to modify total time.
gatedClock 61:8026a9fc0cf1 92 Queue<int, 1> queueUpdateFSM; // message to inform FSM.
gatedClock 61:8026a9fc0cf1 93 Queue<int, 1> queueUpdateRemainingTime; // message to update remaining time.
gatedClock 71:4a5f256ecf7c 94 Queue<int, 1> queueSetRemainingTime; // tell countdown it's start time.
gatedClock 69:55b836e8ced7 95 Queue<int, 1> queueFSMnewState; // latest FSM state.
gatedClock 0:fcca4db7b32a 96 //--global_variables----------------------------//------------------------------
gatedClock 26:bff592483cb1 97 char gcSignalWaitEnable; // 1 to wait on a signal.
gatedClock 26:bff592483cb1 98 char gcSlowClock; // slow-clock signal.
gatedClock 33:34c1bef3c4ff 99 char gcInitializePipeline; // 1 to initialize pipeline state.
gatedClock 39:4e7e4d935a87 100 float gfCelsius; // from thermometer.
gatedClock 84:fee8fb80d190 101
gatedClock 26:bff592483cb1 102 tButtons gtButtons; // ISR button updates.
gatedClock 70:7c0743c28b11 103
gatedClock 71:4a5f256ecf7c 104 tRemainingTime giRemainingTime; // structure instance.
gatedClock 80:e3e1a2161435 105 tLCD giLCD; // structure instance.
gatedClock 71:4a5f256ecf7c 106
gatedClock 70:7c0743c28b11 107 int gdDiagTotalTime;
gatedClock 0:fcca4db7b32a 108 //--global_instances----------------------------//------------------------------
gatedClock 55:17f3354da63a 109 Serial pc(USBTX, USBRX); // PuTTY terminal communication.
gatedClock 39:4e7e4d935a87 110 LM75B temperature(p28,p27); // on-board thermometer.
gatedClock 9:cfdb9aa5857c 111 C12832_LCD lcd; // LCD object.
gatedClock 53:8c2baf5623c8 112 DigitalOut led0(LED4); // magnetron.
gatedClock 39:4e7e4d935a87 113 DigitalOut led1(LED3);
gatedClock 39:4e7e4d935a87 114 DigitalOut led2(LED2);
gatedClock 39:4e7e4d935a87 115 DigitalOut led3(LED1);
gatedClock 0:fcca4db7b32a 116
gatedClock 0:fcca4db7b32a 117 InterruptIn iJoyStickUp (p15); // joystick up rising edge.
gatedClock 0:fcca4db7b32a 118 InterruptIn iJoyStickDown (p12); // joystick down rising edge.
gatedClock 0:fcca4db7b32a 119 InterruptIn iJoyStickLeft (p13); // joystick left rising edge.
gatedClock 0:fcca4db7b32a 120 InterruptIn iJoyStickRight (p16); // joystick right rising edge.
gatedClock 0:fcca4db7b32a 121 InterruptIn iJoyStickCenter(p14); // 1 if joystick middle pressed.
gatedClock 66:4a0006fa5cc1 122
gatedClock 66:4a0006fa5cc1 123 Timer debounceTimer; // button debounce timer.
gatedClock 0:fcca4db7b32a 124
gatedClock 50:2928c3cbdcc3 125 Ticker tickerButtonStateManager; // manage the button states.
gatedClock 19:92b11e30aaaf 126 Ticker tickerSlowClock; // generate a ~1Hz clock.
gatedClock 77:73e4fd83642f 127 Ticker tickerCookCountdown; // remaining cook time.
gatedClock 63:63f362bcc2ac 128
gatedClock 63:63f362bcc2ac 129 // Timer timerFSMdone; // duration of FSM 'done' state.
gatedClock 40:7afff79f0d8b 130
gatedClock 0:fcca4db7b32a 131 //-------prototypes-----------------------------//------------------------------
gatedClock 49:56f790977983 132
gatedClock 19:92b11e30aaaf 133 void slowClock(); // 1Hz or thereabouts.
gatedClock 49:56f790977983 134
gatedClock 9:cfdb9aa5857c 135 void initialization(); // initialize settings.
gatedClock 13:21f27ba467c2 136
gatedClock 13:21f27ba467c2 137 void ISRleftButtonRising(); // cook-time increase.
gatedClock 13:21f27ba467c2 138 void ISRleftButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 139 void ISRrightButtonRising(); // cook-time decrease.
gatedClock 13:21f27ba467c2 140 void ISRrightButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 141 void ISRtopButtonRising(); // cook start.
gatedClock 13:21f27ba467c2 142 void ISRtopButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 143 void ISRbottomButtonRising(); // cook stop.
gatedClock 13:21f27ba467c2 144 void ISRbottomButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 145 void ISRcenterButtonRising(); // door state toggle.
gatedClock 13:21f27ba467c2 146 void ISRcenterButtonFalling(); // button-release debounce.
gatedClock 16:db7f0b3b2605 147 void disableSignalWaiting(); // break from signal waiting.
gatedClock 39:4e7e4d935a87 148
gatedClock 54:b0e7352d2516 149 void threadButtonStateManager(void const *args);
gatedClock 50:2928c3cbdcc3 150 void threadTotalTimeControl(void const *args);
gatedClock 57:0432c68ad232 151 void threadCookStateFSM(void const *args);
gatedClock 71:4a5f256ecf7c 152 void tickCookRemainingTime(); // remaining time countdown.
gatedClock 50:2928c3cbdcc3 153
gatedClock 40:7afff79f0d8b 154 void temperatureThread(void const *args); // temperature measurement.
gatedClock 42:266d5bbbfd19 155 void LCDthread (void const *args); // LCD display thread.
gatedClock 0:fcca4db7b32a 156 //==============================================//==============================
gatedClock 0:fcca4db7b32a 157 int main(void)
gatedClock 0:fcca4db7b32a 158 {
gatedClock 16:db7f0b3b2605 159 char cLeftButtonState; // 1 means button was pressed.
gatedClock 16:db7f0b3b2605 160
gatedClock 16:db7f0b3b2605 161
gatedClock 16:db7f0b3b2605 162
gatedClock 14:d3bb343cd5b2 163 iJoyStickLeft.rise (&ISRleftButtonRising);
gatedClock 14:d3bb343cd5b2 164 iJoyStickLeft.fall (&ISRleftButtonFalling);
gatedClock 9:cfdb9aa5857c 165
gatedClock 14:d3bb343cd5b2 166 iJoyStickRight.rise(&ISRrightButtonRising);
gatedClock 14:d3bb343cd5b2 167 iJoyStickRight.fall(&ISRrightButtonFalling);
gatedClock 14:d3bb343cd5b2 168
gatedClock 14:d3bb343cd5b2 169 iJoyStickUp.rise (&ISRtopButtonRising);
gatedClock 14:d3bb343cd5b2 170 iJoyStickUp.fall (&ISRtopButtonFalling);
gatedClock 9:cfdb9aa5857c 171
gatedClock 14:d3bb343cd5b2 172 iJoyStickDown.rise (&ISRbottomButtonRising);
gatedClock 14:d3bb343cd5b2 173 iJoyStickDown.fall (&ISRbottomButtonFalling);
gatedClock 7:9fbd1d540863 174
gatedClock 14:d3bb343cd5b2 175 iJoyStickCenter.rise(&ISRcenterButtonRising);
gatedClock 14:d3bb343cd5b2 176 iJoyStickCenter.fall(&ISRcenterButtonFalling);
gatedClock 9:cfdb9aa5857c 177
gatedClock 66:4a0006fa5cc1 178 debounceTimer.start(); // kick-off debounce timer.
gatedClock 66:4a0006fa5cc1 179
gatedClock 33:34c1bef3c4ff 180 gcInitializePipeline = 1; // tell pipeline to initialize.
gatedClock 16:db7f0b3b2605 181
gatedClock 9:cfdb9aa5857c 182 initialization(); // initialize variables.
gatedClock 21:b794d189c36b 183 gcSlowClock = 0;
gatedClock 44:d16e813e61ef 184 led1 = 0;
gatedClock 53:8c2baf5623c8 185 gtButtons.cDoorOpen = 0; // initialize with door closed.
gatedClock 63:63f362bcc2ac 186
gatedClock 63:63f362bcc2ac 187 // timerFSMdone.start(); // start 'done' timer.
gatedClock 49:56f790977983 188
gatedClock 86:388c2b4b7cf5 189 // tickerSlowClock.attach_us(&slowClock ,SLOWCLOCKuS);
gatedClock 64:255295f1d782 190
gatedClock 75:c2894d531f42 191
gatedClock 86:388c2b4b7cf5 192 tickerCookCountdown.attach_us(&tickCookRemainingTime,1000000/GRANULARITY);
gatedClock 54:b0e7352d2516 193
gatedClock 40:7afff79f0d8b 194
gatedClock 70:7c0743c28b11 195 Thread thread_1(temperatureThread ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 196 Thread thread_2(LCDthread ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 197 Thread thread_3(threadTotalTimeControl ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 198 Thread thread_4(threadButtonStateManager,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL); // was osPriorityIdle
gatedClock 70:7c0743c28b11 199 Thread thread_5(threadCookStateFSM ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 200
gatedClock 66:4a0006fa5cc1 201 //Thread thread_4(threadButtonStateManager);
gatedClock 52:8ba6a0c91a89 202
gatedClock 40:7afff79f0d8b 203
gatedClock 59:5e45b5e4a874 204 // the message-receiving threads need 'else' for message-receive-timeout.
gatedClock 9:cfdb9aa5857c 205
gatedClock 14:d3bb343cd5b2 206 while(1)
gatedClock 0:fcca4db7b32a 207 {
gatedClock 75:c2894d531f42 208 // pc.printf("\n\r gdDiagTotalTime %d",gdDiagTotalTime);
gatedClock 70:7c0743c28b11 209
gatedClock 70:7c0743c28b11 210 Thread::wait(1000);
gatedClock 16:db7f0b3b2605 211
gatedClock 16:db7f0b3b2605 212
gatedClock 16:db7f0b3b2605 213
gatedClock 14:d3bb343cd5b2 214
gatedClock 0:fcca4db7b32a 215 }
gatedClock 19:92b11e30aaaf 216 }
gatedClock 19:92b11e30aaaf 217 /*----------------------------------------------//----------------------------*/
gatedClock 59:5e45b5e4a874 218
gatedClock 59:5e45b5e4a874 219 // this serves as the bottom-half for all of the button-press IRSs.
gatedClock 59:5e45b5e4a874 220 // it sends button-status messages to other threads, and it also
gatedClock 59:5e45b5e4a874 221 // clears the button-state globals to prepare them for the next
gatedClock 59:5e45b5e4a874 222 // button press.
gatedClock 59:5e45b5e4a874 223
gatedClock 59:5e45b5e4a874 224
gatedClock 54:b0e7352d2516 225 void threadButtonStateManager(void const *args)
gatedClock 50:2928c3cbdcc3 226 {
gatedClock 56:18cff6eb91db 227 int dMessage; // message.
gatedClock 50:2928c3cbdcc3 228
gatedClock 54:b0e7352d2516 229 while(1) // thread loop.
gatedClock 67:1d9c85a4c3c1 230 {
gatedClock 54:b0e7352d2516 231 //--- // TOTAL TIME CONTROL.
gatedClock 56:18cff6eb91db 232
gatedClock 56:18cff6eb91db 233 // encoded integers will be sent,
gatedClock 56:18cff6eb91db 234 // not pointers.
gatedClock 50:2928c3cbdcc3 235
gatedClock 50:2928c3cbdcc3 236 if (gtButtons.cLeftButton) // total time increment button.
gatedClock 50:2928c3cbdcc3 237 {
gatedClock 54:b0e7352d2516 238 dMessage = MSG_INC_TIME; // set message.
gatedClock 69:55b836e8ced7 239 queueModTotalTime.put((int *) dMessage,1);// pretend it's a pointer.
gatedClock 50:2928c3cbdcc3 240 gtButtons.cLeftButton = 0; // clear the button state.
gatedClock 50:2928c3cbdcc3 241 }
gatedClock 67:1d9c85a4c3c1 242
gatedClock 59:5e45b5e4a874 243 if (gtButtons.cRightButton) // total time decrement button.
gatedClock 50:2928c3cbdcc3 244 {
gatedClock 54:b0e7352d2516 245 dMessage = MSG_DEC_TIME; // set message.
gatedClock 69:55b836e8ced7 246 queueModTotalTime.put((int *) dMessage,1);// pretend it's a pointer.
gatedClock 50:2928c3cbdcc3 247 gtButtons.cRightButton = 0; // clear the button state.
gatedClock 50:2928c3cbdcc3 248 }
gatedClock 67:1d9c85a4c3c1 249
gatedClock 59:5e45b5e4a874 250 //--- // COOK-STATE FSM.
gatedClock 59:5e45b5e4a874 251
gatedClock 59:5e45b5e4a874 252 if (gtButtons.cTopButton) // start-cook button.
gatedClock 58:ec630b6dd9b1 253 {
gatedClock 59:5e45b5e4a874 254 dMessage = MSG_START; // set message.
gatedClock 69:55b836e8ced7 255 queueUpdateFSM.put((int *) dMessage,1); // pretend it's a pointer.
gatedClock 59:5e45b5e4a874 256 gtButtons.cTopButton = 0; // clear the button state.
gatedClock 58:ec630b6dd9b1 257 }
gatedClock 67:1d9c85a4c3c1 258
gatedClock 59:5e45b5e4a874 259 if (gtButtons.cBottomButton) // stop-cook button.
gatedClock 58:ec630b6dd9b1 260 {
gatedClock 59:5e45b5e4a874 261 dMessage = MSG_STOP; // set message.
gatedClock 69:55b836e8ced7 262 queueUpdateFSM.put((int *) dMessage,1); // pretend it's a pointer.
gatedClock 59:5e45b5e4a874 263 gtButtons.cBottomButton = 0; // clear the button state.
gatedClock 58:ec630b6dd9b1 264 }
gatedClock 67:1d9c85a4c3c1 265
gatedClock 59:5e45b5e4a874 266 if (gtButtons.cCenterButton) // door-state-toggle.
gatedClock 58:ec630b6dd9b1 267 {
gatedClock 59:5e45b5e4a874 268 dMessage = gtButtons.cDoorOpen; // determined in ISR.
gatedClock 69:55b836e8ced7 269 queueUpdateFSM.put((int *) dMessage,1); // pretend it's a pointer.
gatedClock 59:5e45b5e4a874 270 gtButtons.cCenterButton = 0; // clear the button state.
gatedClock 58:ec630b6dd9b1 271 }
gatedClock 59:5e45b5e4a874 272 //---
gatedClock 58:ec630b6dd9b1 273
gatedClock 54:b0e7352d2516 274 Thread::wait(THREAD_4_WAITmS); // multitasking.
gatedClock 54:b0e7352d2516 275 } // thread loop.
gatedClock 54:b0e7352d2516 276 } // threadButtonStateManager.
gatedClock 50:2928c3cbdcc3 277 /*----------------------------------------------//----------------------------*/
gatedClock 51:e5ec74c49b01 278 // the incoming messages are mutually-exclusive.
gatedClock 51:e5ec74c49b01 279 // total time controller.
gatedClock 51:e5ec74c49b01 280 void threadTotalTimeControl(void const *args)
gatedClock 50:2928c3cbdcc3 281 {
gatedClock 51:e5ec74c49b01 282 static int dTotalTime = 0; // total time variable.
gatedClock 60:e10bf95bbc96 283 int dMessage; // message.
gatedClock 51:e5ec74c49b01 284 osEvent queueEvent; // queue event.
gatedClock 70:7c0743c28b11 285 int dRC;
gatedClock 50:2928c3cbdcc3 286
gatedClock 50:2928c3cbdcc3 287 while(1) // thread loop.
gatedClock 50:2928c3cbdcc3 288 {
gatedClock 50:2928c3cbdcc3 289
gatedClock 55:17f3354da63a 290 queueEvent = queueModTotalTime.get(1); // get message.
gatedClock 51:e5ec74c49b01 291 if (queueEvent.status == osEventMessage)
gatedClock 51:e5ec74c49b01 292 {
gatedClock 56:18cff6eb91db 293 dMessage = (int) queueEvent.value.p; // interpret as integer, not pointer.
gatedClock 54:b0e7352d2516 294
gatedClock 54:b0e7352d2516 295 // increment total time.
gatedClock 56:18cff6eb91db 296 if (dMessage == MSG_INC_TIME) dTotalTime += 60;
gatedClock 54:b0e7352d2516 297
gatedClock 54:b0e7352d2516 298 // decrement total time.
gatedClock 56:18cff6eb91db 299 if (dMessage == MSG_DEC_TIME) dTotalTime -= 60;
gatedClock 65:e39360da5929 300
gatedClock 65:e39360da5929 301 // saturations.
gatedClock 65:e39360da5929 302 if (dTotalTime > 180) dTotalTime = 180;
gatedClock 65:e39360da5929 303 if (dTotalTime < 0) dTotalTime = 0;
gatedClock 65:e39360da5929 304
gatedClock 70:7c0743c28b11 305 dRC = queueSetRemainingTime.put((int *) dTotalTime,1);
gatedClock 75:c2894d531f42 306 giRemainingTime.dTotalTime = dTotalTime;
gatedClock 51:e5ec74c49b01 307 }
gatedClock 81:12bc26973cb8 308
gatedClock 50:2928c3cbdcc3 309 Thread::wait(THREAD_3_WAITmS); // multitasking.
gatedClock 50:2928c3cbdcc3 310 } // thread loop.
gatedClock 50:2928c3cbdcc3 311 } // threadTotalTimeControl.
gatedClock 33:34c1bef3c4ff 312 /*----------------------------------------------//----------------------------*/
gatedClock 81:12bc26973cb8 313
gatedClock 57:0432c68ad232 314 void threadCookStateFSM(void const *args) // cook-cycle FSM.
gatedClock 57:0432c68ad232 315 {
gatedClock 83:2e01f2a799ba 316 int dFSMstate = FSM_IDLE; // state of this FSM.
gatedClock 83:2e01f2a799ba 317 int dFSMstateLast = FSM_IDLE; // previous FSM state.
gatedClock 83:2e01f2a799ba 318 int dButtonState; // received button state.
gatedClock 83:2e01f2a799ba 319 int dRemainingTime = 0; // received remaining time.
gatedClock 62:48e7c196e2a5 320
gatedClock 83:2e01f2a799ba 321 int dButtonStart = 0;
gatedClock 83:2e01f2a799ba 322 int dButtonStop = 0;
gatedClock 83:2e01f2a799ba 323 int dDoorOpen = 0;
gatedClock 81:12bc26973cb8 324
gatedClock 81:12bc26973cb8 325 osEvent queueEvent; // from button state manager.
gatedClock 75:c2894d531f42 326
gatedClock 62:48e7c196e2a5 327
gatedClock 63:63f362bcc2ac 328
gatedClock 57:0432c68ad232 329 while(1) // thread loop.
gatedClock 57:0432c68ad232 330 {
gatedClock 81:12bc26973cb8 331
gatedClock 74:4debb8f2e21d 332 switch (dFSMstate) // cook-mode state machine.
gatedClock 62:48e7c196e2a5 333 {
gatedClock 82:73fa3fe8a217 334 //---
gatedClock 73:44739860198b 335 case FSM_IDLE : // IDLE.
gatedClock 73:44739860198b 336 {
gatedClock 75:c2894d531f42 337 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 80:e3e1a2161435 338 {
gatedClock 75:c2894d531f42 339 }
gatedClock 80:e3e1a2161435 340
gatedClock 80:e3e1a2161435 341 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 342 giLCD.dRemainingTime = 0; // suppress remaining time display.
gatedClock 80:e3e1a2161435 343 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 344
gatedClock 78:7df160e0db7b 345 giRemainingTime.cControl = RT_PRELOAD;
gatedClock 76:74c454c9d75b 346 dFSMstateLast = dFSMstate; // determine next state.
gatedClock 75:c2894d531f42 347 if ((dButtonStart == 1) && (dDoorOpen == 0) && (giRemainingTime.dTotalTime > 0)) dFSMstate = FSM_COOK;
gatedClock 73:44739860198b 348 break;
gatedClock 73:44739860198b 349 }
gatedClock 82:73fa3fe8a217 350 //---
gatedClock 73:44739860198b 351 case FSM_COOK : // COOK.
gatedClock 73:44739860198b 352 {
gatedClock 75:c2894d531f42 353 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 75:c2894d531f42 354 {
gatedClock 75:c2894d531f42 355 giRemainingTime.cControl = RT_DECREMENT;
gatedClock 75:c2894d531f42 356 }
gatedClock 80:e3e1a2161435 357
gatedClock 80:e3e1a2161435 358 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 359 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 360 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 361
gatedClock 80:e3e1a2161435 362
gatedClock 76:74c454c9d75b 363
gatedClock 76:74c454c9d75b 364 dFSMstateLast = dFSMstate; // determine next state.
gatedClock 78:7df160e0db7b 365 if ((dDoorOpen == 1) && (dRemainingTime > 0)) dFSMstate = FSM_PAUSE;
gatedClock 78:7df160e0db7b 366 else
gatedClock 76:74c454c9d75b 367 if (dButtonStop) dFSMstate = FSM_IDLE;
gatedClock 78:7df160e0db7b 368 else
gatedClock 78:7df160e0db7b 369 if (dRemainingTime <= 0) dFSMstate = FSM_DONE;
gatedClock 73:44739860198b 370 break;
gatedClock 73:44739860198b 371 }
gatedClock 82:73fa3fe8a217 372 //---
gatedClock 73:44739860198b 373 case FSM_PAUSE : // PAUSE.
gatedClock 73:44739860198b 374 {
gatedClock 75:c2894d531f42 375
gatedClock 75:c2894d531f42 376 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 75:c2894d531f42 377 {
gatedClock 75:c2894d531f42 378 }
gatedClock 80:e3e1a2161435 379
gatedClock 80:e3e1a2161435 380
gatedClock 80:e3e1a2161435 381 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 382 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 383 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 384
gatedClock 80:e3e1a2161435 385
gatedClock 75:c2894d531f42 386 giRemainingTime.cControl = RT_PAUSE;
gatedClock 75:c2894d531f42 387 // determine next state.
gatedClock 75:c2894d531f42 388 dFSMstateLast = dFSMstate;
gatedClock 78:7df160e0db7b 389 if ((dButtonStart == 1) && (dDoorOpen == 0) && (giRemainingTime.dTotalTime > 0)) dFSMstate = FSM_CONTINUE;
gatedClock 75:c2894d531f42 390 else
gatedClock 78:7df160e0db7b 391 if (dButtonStop) dFSMstate = FSM_IDLE;
gatedClock 73:44739860198b 392 break;
gatedClock 73:44739860198b 393 }
gatedClock 78:7df160e0db7b 394
gatedClock 82:73fa3fe8a217 395 //---
gatedClock 79:4286319e48b4 396 case FSM_CONTINUE : // CONTINUE.
gatedClock 78:7df160e0db7b 397 {
gatedClock 78:7df160e0db7b 398
gatedClock 78:7df160e0db7b 399 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 78:7df160e0db7b 400 {
gatedClock 78:7df160e0db7b 401 }
gatedClock 80:e3e1a2161435 402
gatedClock 80:e3e1a2161435 403
gatedClock 80:e3e1a2161435 404 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 405 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 406 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 407
gatedClock 80:e3e1a2161435 408
gatedClock 78:7df160e0db7b 409 giRemainingTime.cControl = RT_DECREMENT;
gatedClock 78:7df160e0db7b 410 // determine next state.
gatedClock 78:7df160e0db7b 411 dFSMstateLast = dFSMstate;
gatedClock 78:7df160e0db7b 412 if (dRemainingTime <= 0) dFSMstate = FSM_DONE;
gatedClock 78:7df160e0db7b 413 else
gatedClock 78:7df160e0db7b 414 if (dButtonStop) dFSMstate = FSM_IDLE;
gatedClock 79:4286319e48b4 415 else
gatedClock 79:4286319e48b4 416 if ((dDoorOpen == 1) && (dRemainingTime > 0)) dFSMstate = FSM_PAUSE;
gatedClock 78:7df160e0db7b 417 break;
gatedClock 78:7df160e0db7b 418 }
gatedClock 78:7df160e0db7b 419
gatedClock 78:7df160e0db7b 420
gatedClock 82:73fa3fe8a217 421 //---
gatedClock 73:44739860198b 422 case FSM_DONE : // DONE.
gatedClock 73:44739860198b 423 {
gatedClock 75:c2894d531f42 424
gatedClock 75:c2894d531f42 425 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 75:c2894d531f42 426 {
gatedClock 75:c2894d531f42 427 }
gatedClock 80:e3e1a2161435 428
gatedClock 80:e3e1a2161435 429
gatedClock 80:e3e1a2161435 430 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 431 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 432 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 433
gatedClock 80:e3e1a2161435 434
gatedClock 80:e3e1a2161435 435
gatedClock 75:c2894d531f42 436 giRemainingTime.cControl = RT_CLEAR;
gatedClock 75:c2894d531f42 437 // determine next state.
gatedClock 75:c2894d531f42 438 dFSMstateLast = dFSMstate;
gatedClock 74:4debb8f2e21d 439 dFSMstate = FSM_IDLE;
gatedClock 73:44739860198b 440 break;
gatedClock 73:44739860198b 441 }
gatedClock 82:73fa3fe8a217 442 //---
gatedClock 73:44739860198b 443 default : {dFSMstate = FSM_IDLE; break;}
gatedClock 73:44739860198b 444
gatedClock 62:48e7c196e2a5 445 }
gatedClock 73:44739860198b 446
gatedClock 63:63f362bcc2ac 447
gatedClock 75:c2894d531f42 448
gatedClock 75:c2894d531f42 449 queueEvent = queueUpdateFSM.get(1); // threadButtonStateManager
gatedClock 60:e10bf95bbc96 450 if (queueEvent.status == osEventMessage)// update state variable.
gatedClock 60:e10bf95bbc96 451 {
gatedClock 61:8026a9fc0cf1 452 // interpret as integer, not pointer.
gatedClock 61:8026a9fc0cf1 453 dButtonState = (int) queueEvent.value.p;
gatedClock 63:63f362bcc2ac 454
gatedClock 75:c2894d531f42 455
gatedClock 69:55b836e8ced7 456
gatedClock 63:63f362bcc2ac 457 if (dButtonState == MSG_START)
gatedClock 63:63f362bcc2ac 458 {
gatedClock 63:63f362bcc2ac 459 dButtonStart = 1;
gatedClock 63:63f362bcc2ac 460 dButtonStop = 0;
gatedClock 79:4286319e48b4 461
gatedClock 79:4286319e48b4 462 // if the door is open, ignore
gatedClock 79:4286319e48b4 463 // and cancel 'start' state.
gatedClock 79:4286319e48b4 464 if (dDoorOpen) dButtonStart = 0;
gatedClock 63:63f362bcc2ac 465 }
gatedClock 63:63f362bcc2ac 466 if (dButtonState == MSG_STOP)
gatedClock 63:63f362bcc2ac 467 {
gatedClock 63:63f362bcc2ac 468 dButtonStart = 0;
gatedClock 63:63f362bcc2ac 469 dButtonStop = 1;
gatedClock 63:63f362bcc2ac 470 }
gatedClock 63:63f362bcc2ac 471
gatedClock 63:63f362bcc2ac 472 if (dButtonState == MSG_OPEN)
gatedClock 63:63f362bcc2ac 473 {
gatedClock 79:4286319e48b4 474 // if the door opens, clear current 'start' state.
gatedClock 79:4286319e48b4 475 dDoorOpen = 1;
gatedClock 79:4286319e48b4 476 dButtonStart = 0;
gatedClock 63:63f362bcc2ac 477 }
gatedClock 63:63f362bcc2ac 478
gatedClock 63:63f362bcc2ac 479 if (dButtonState == MSG_CLOSED)
gatedClock 63:63f362bcc2ac 480 {
gatedClock 63:63f362bcc2ac 481 dDoorOpen = 0;
gatedClock 63:63f362bcc2ac 482 }
gatedClock 63:63f362bcc2ac 483
gatedClock 61:8026a9fc0cf1 484 }
gatedClock 75:c2894d531f42 485
gatedClock 75:c2894d531f42 486 // fetch from global scope.
gatedClock 75:c2894d531f42 487 dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 69:55b836e8ced7 488
gatedClock 75:c2894d531f42 489 // pipeline variable.
gatedClock 57:0432c68ad232 490 Thread::wait(THREAD_5_WAITmS); // multitasking.
gatedClock 57:0432c68ad232 491 } // thread loop.
gatedClock 57:0432c68ad232 492 } // threadCookStateFSM.
gatedClock 57:0432c68ad232 493 /*----------------------------------------------//----------------------------*/
gatedClock 19:92b11e30aaaf 494 void slowClock(void) // 1Hz or thereabouts.
gatedClock 19:92b11e30aaaf 495 {
gatedClock 24:d39516e077ea 496 gcSlowClock = !gcSlowClock; // toggle clock.
gatedClock 19:92b11e30aaaf 497 }
gatedClock 19:92b11e30aaaf 498 /*----------------------------------------------//----------------------------*/
gatedClock 0:fcca4db7b32a 499 void initialization(void) // program initializations.
gatedClock 0:fcca4db7b32a 500 {
gatedClock 16:db7f0b3b2605 501 gcSignalWaitEnable = 1;
gatedClock 0:fcca4db7b32a 502 }
gatedClock 0:fcca4db7b32a 503 /*----------------------------------------------//----------------------------*/
gatedClock 26:bff592483cb1 504 void ISRleftButtonRising(void) // cooktime plus 60s.
gatedClock 1:9188d4668a88 505 {
gatedClock 66:4a0006fa5cc1 506 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 26:bff592483cb1 507 gtButtons.cLeftButton = 1; // detect left button.
gatedClock 9:cfdb9aa5857c 508
gatedClock 66:4a0006fa5cc1 509 debounceTimer.reset(); // begin debounce period.
gatedClock 11:9cae003da12b 510 }
gatedClock 1:9188d4668a88 511 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 512 void ISRleftButtonFalling(void) // button-release debounce.
gatedClock 1:9188d4668a88 513 {
gatedClock 66:4a0006fa5cc1 514 debounceTimer.reset(); // begin debounce period.
gatedClock 11:9cae003da12b 515 }
gatedClock 2:665ffa57031f 516 /*----------------------------------------------//----------------------------*/
gatedClock 26:bff592483cb1 517 void ISRrightButtonRising(void) // cooktime -60s.
gatedClock 12:e40272e1fd8f 518 {
gatedClock 66:4a0006fa5cc1 519 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 26:bff592483cb1 520 gtButtons.cRightButton = 1; // detect right button.
gatedClock 12:e40272e1fd8f 521
gatedClock 66:4a0006fa5cc1 522 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 523 }
gatedClock 12:e40272e1fd8f 524 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 525 void ISRrightButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 526 {
gatedClock 66:4a0006fa5cc1 527 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 528 }
gatedClock 12:e40272e1fd8f 529 /*----------------------------------------------//----------------------------*/
gatedClock 26:bff592483cb1 530 void ISRtopButtonRising(void) // cook start.
gatedClock 12:e40272e1fd8f 531 {
gatedClock 66:4a0006fa5cc1 532 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 26:bff592483cb1 533 gtButtons.cTopButton = 1; // detect top button.
gatedClock 12:e40272e1fd8f 534
gatedClock 66:4a0006fa5cc1 535 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 536 }
gatedClock 12:e40272e1fd8f 537 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 538 void ISRtopButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 539 {
gatedClock 66:4a0006fa5cc1 540 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 541 }
gatedClock 12:e40272e1fd8f 542 /*----------------------------------------------//----------------------------*/
gatedClock 53:8c2baf5623c8 543 // front-end control of magnetron off.
gatedClock 53:8c2baf5623c8 544 // due to physical danger, the magnetron is turned off immediately
gatedClock 53:8c2baf5623c8 545 // upon off-button press, in the interrupt that it generates.
gatedClock 53:8c2baf5623c8 546
gatedClock 26:bff592483cb1 547 void ISRbottomButtonRising(void) // cook stop.
gatedClock 12:e40272e1fd8f 548 {
gatedClock 66:4a0006fa5cc1 549 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 66:4a0006fa5cc1 550 {
gatedClock 66:4a0006fa5cc1 551 led0 = 0; // magnetron off.
gatedClock 66:4a0006fa5cc1 552 gtButtons.cBottomButton = 1; // detect bottom button.
gatedClock 66:4a0006fa5cc1 553 }
gatedClock 66:4a0006fa5cc1 554 debounceTimer.reset(); // begin debounce period.
gatedClock 66:4a0006fa5cc1 555 }
gatedClock 12:e40272e1fd8f 556 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 557 void ISRbottomButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 558 {
gatedClock 66:4a0006fa5cc1 559 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 560 }
gatedClock 12:e40272e1fd8f 561 /*----------------------------------------------//----------------------------*/
gatedClock 53:8c2baf5623c8 562 // front-end control of magnetron off.
gatedClock 53:8c2baf5623c8 563 // due to physical danger, the magnetron is turned off immediately
gatedClock 53:8c2baf5623c8 564 // upon detection of an open door.
gatedClock 53:8c2baf5623c8 565
gatedClock 26:bff592483cb1 566 void ISRcenterButtonRising(void) // toggle door state.
gatedClock 12:e40272e1fd8f 567 {
gatedClock 66:4a0006fa5cc1 568 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 66:4a0006fa5cc1 569 {
gatedClock 66:4a0006fa5cc1 570 if (gtButtons.cDoorOpen == MSG_OPEN) // calculate door state.
gatedClock 66:4a0006fa5cc1 571 gtButtons.cDoorOpen = MSG_CLOSED;
gatedClock 66:4a0006fa5cc1 572 else
gatedClock 66:4a0006fa5cc1 573 gtButtons.cDoorOpen = MSG_OPEN;
gatedClock 53:8c2baf5623c8 574
gatedClock 59:5e45b5e4a874 575 // magnetron off.
gatedClock 66:4a0006fa5cc1 576 if (gtButtons.cDoorOpen == MSG_OPEN) led0 = 0;
gatedClock 58:ec630b6dd9b1 577
gatedClock 66:4a0006fa5cc1 578 gtButtons.cCenterButton = 1;
gatedClock 66:4a0006fa5cc1 579 }
gatedClock 66:4a0006fa5cc1 580 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 581 }
gatedClock 12:e40272e1fd8f 582 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 583 void ISRcenterButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 584 {
gatedClock 66:4a0006fa5cc1 585 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 586 }
gatedClock 12:e40272e1fd8f 587 /*----------------------------------------------//----------------------------*/
gatedClock 40:7afff79f0d8b 588 void temperatureThread(void const *args) // temperature measurement.
gatedClock 39:4e7e4d935a87 589 {
gatedClock 45:e3207684e841 590 while(1) // thread loop.
gatedClock 45:e3207684e841 591 {
gatedClock 45:e3207684e841 592 gfCelsius = temperature.read(); // physical measurement.
gatedClock 40:7afff79f0d8b 593
gatedClock 45:e3207684e841 594 Thread::wait(THREAD_1_WAITmS); // multitasking.
gatedClock 45:e3207684e841 595 } // thread loop.
gatedClock 45:e3207684e841 596 } // temperatureThread.
gatedClock 42:266d5bbbfd19 597 /*----------------------------------------------//----------------------------*/
gatedClock 42:266d5bbbfd19 598 void LCDthread(void const *args) // LCD display thread.
gatedClock 42:266d5bbbfd19 599 {
gatedClock 67:1d9c85a4c3c1 600
gatedClock 67:1d9c85a4c3c1 601 static int dLCDtotalCookTimeSec = 0; // sample current values.
gatedClock 67:1d9c85a4c3c1 602 static int dCookTimeRemainingSec = 0;
gatedClock 67:1d9c85a4c3c1 603 static float fLCDcelsius = 0.0;
gatedClock 67:1d9c85a4c3c1 604
gatedClock 67:1d9c85a4c3c1 605 // remember previous values.
gatedClock 67:1d9c85a4c3c1 606 static int dLCDtotalCookTimeSecLast = 0;
gatedClock 67:1d9c85a4c3c1 607 static int dCookTimeRemainingSecLast = 0;
gatedClock 67:1d9c85a4c3c1 608 static float fLCDcelsiusLast = 0.0;
gatedClock 67:1d9c85a4c3c1 609
gatedClock 44:d16e813e61ef 610 while(1) // thread loop.
gatedClock 44:d16e813e61ef 611 {
gatedClock 67:1d9c85a4c3c1 612 // don't allow the values to
gatedClock 67:1d9c85a4c3c1 613 // change in the middle of the
gatedClock 67:1d9c85a4c3c1 614 // below else the anti-blink
gatedClock 67:1d9c85a4c3c1 615 // code won't work.
gatedClock 80:e3e1a2161435 616 dLCDtotalCookTimeSec = giLCD.dTotalCookTime;
gatedClock 80:e3e1a2161435 617 dCookTimeRemainingSec = giLCD.dRemainingTime;
gatedClock 80:e3e1a2161435 618 fLCDcelsius = giLCD.fCelsius;
gatedClock 80:e3e1a2161435 619
gatedClock 80:e3e1a2161435 620
gatedClock 67:1d9c85a4c3c1 621
gatedClock 67:1d9c85a4c3c1 622
gatedClock 67:1d9c85a4c3c1 623 // clear display only when
gatedClock 67:1d9c85a4c3c1 624 // necessary, in order to avoid
gatedClock 67:1d9c85a4c3c1 625 // 'blinkieness'.
gatedClock 67:1d9c85a4c3c1 626 if (dLCDtotalCookTimeSec != dLCDtotalCookTimeSecLast ||
gatedClock 67:1d9c85a4c3c1 627 dCookTimeRemainingSec != dCookTimeRemainingSecLast ||
gatedClock 67:1d9c85a4c3c1 628 fLCDcelsius != fLCDcelsiusLast)
gatedClock 67:1d9c85a4c3c1 629 lcd.cls();
gatedClock 42:266d5bbbfd19 630
gatedClock 44:d16e813e61ef 631 LCD1; // line 1.
gatedClock 67:1d9c85a4c3c1 632 lcd.printf(" total cook time: %d",dLCDtotalCookTimeSec);
gatedClock 42:266d5bbbfd19 633
gatedClock 44:d16e813e61ef 634 LCD2; // line 2.
gatedClock 67:1d9c85a4c3c1 635 lcd.printf(" remaing cook time: %d",dCookTimeRemainingSec);
gatedClock 42:266d5bbbfd19 636
gatedClock 44:d16e813e61ef 637 LCD3; // line 3.
gatedClock 67:1d9c85a4c3c1 638 lcd.printf(" temperature : %5.3f",fLCDcelsius);
gatedClock 67:1d9c85a4c3c1 639
gatedClock 67:1d9c85a4c3c1 640 // pipeline variables.
gatedClock 67:1d9c85a4c3c1 641 dLCDtotalCookTimeSecLast = dLCDtotalCookTimeSec;
gatedClock 67:1d9c85a4c3c1 642 dCookTimeRemainingSecLast = dCookTimeRemainingSec;
gatedClock 67:1d9c85a4c3c1 643 fLCDcelsiusLast = fLCDcelsius;
gatedClock 42:266d5bbbfd19 644
gatedClock 44:d16e813e61ef 645 Thread::wait(THREAD_2_WAITmS); // multitasking.
gatedClock 44:d16e813e61ef 646 } // thread loop.
gatedClock 44:d16e813e61ef 647 } // LCDthread.
gatedClock 42:266d5bbbfd19 648 /*----------------------------------------------//----------------------------*/
gatedClock 71:4a5f256ecf7c 649
gatedClock 88:0b1b812945eb 650 // cook remaining time countdown counter.
gatedClock 88:0b1b812945eb 651 // possibly due to a bug in Ticker
gatedClock 88:0b1b812945eb 652 // http://mbed.org/questions/1563/Mbed-Tickerfunction-hangs-system-from-re/
gatedClock 88:0b1b812945eb 653 // I've been unable to detach/attach this routine in order to reset its phase
gatedClock 88:0b1b812945eb 654 // when I tried it at a 1s resolution. In order to provide the human perception
gatedClock 88:0b1b812945eb 655 // of an immediate restart, I've increased the ticker frequency by the factor
gatedClock 88:0b1b812945eb 656 // 'GRANULARITY' and likewise divide that factor out when this routine
gatedClock 88:0b1b812945eb 657 // promotes the remaining time to the global variable.
gatedClock 88:0b1b812945eb 658
gatedClock 71:4a5f256ecf7c 659 void tickCookRemainingTime(void) // cook-cycle countdown.
gatedClock 71:4a5f256ecf7c 660 {
gatedClock 71:4a5f256ecf7c 661 static int dRemainingTime = 0; // remaining time in seconds.
gatedClock 88:0b1b812945eb 662 int dMaximum; // MAXSECONDS * GRANULARITY.
gatedClock 88:0b1b812945eb 663
gatedClock 88:0b1b812945eb 664 dMaximum = MAXSECONDS * GRANULARITY; // precalculate.
gatedClock 75:c2894d531f42 665
gatedClock 75:c2894d531f42 666 switch (giRemainingTime.cControl) // control processing.
gatedClock 71:4a5f256ecf7c 667 {
gatedClock 88:0b1b812945eb 668
gatedClock 72:b4d0c0aa3c26 669 case RT_PRELOAD : // preload with total time.
gatedClock 71:4a5f256ecf7c 670 {
gatedClock 88:0b1b812945eb 671 // the 'GRANULARITY - 1' factor
gatedClock 88:0b1b812945eb 672 // compensates for integer division
gatedClock 88:0b1b812945eb 673 // dropping the right-of-decimal result,
gatedClock 88:0b1b812945eb 674 // that occuring at the bottom of this
gatedClock 88:0b1b812945eb 675 // routine.
gatedClock 88:0b1b812945eb 676 dRemainingTime = (giRemainingTime.dTotalTime * GRANULARITY) + (GRANULARITY - 1);
gatedClock 71:4a5f256ecf7c 677 break;
gatedClock 71:4a5f256ecf7c 678 }
gatedClock 88:0b1b812945eb 679
gatedClock 72:b4d0c0aa3c26 680 case RT_DECREMENT : // count-down.
gatedClock 71:4a5f256ecf7c 681 {
gatedClock 72:b4d0c0aa3c26 682 dRemainingTime--;
gatedClock 71:4a5f256ecf7c 683 break;
gatedClock 71:4a5f256ecf7c 684 }
gatedClock 71:4a5f256ecf7c 685
gatedClock 72:b4d0c0aa3c26 686 case RT_PAUSE : // suspend countdown.
gatedClock 69:55b836e8ced7 687 {
gatedClock 72:b4d0c0aa3c26 688 dRemainingTime = dRemainingTime;
gatedClock 71:4a5f256ecf7c 689 break;
gatedClock 71:4a5f256ecf7c 690 }
gatedClock 71:4a5f256ecf7c 691
gatedClock 72:b4d0c0aa3c26 692 case RT_CLEAR : // clear countdown.
gatedClock 71:4a5f256ecf7c 693 {
gatedClock 76:74c454c9d75b 694 dRemainingTime = 0;
gatedClock 76:74c454c9d75b 695 led3 = 1;
gatedClock 71:4a5f256ecf7c 696 break;
gatedClock 71:4a5f256ecf7c 697 }
gatedClock 69:55b836e8ced7 698
gatedClock 72:b4d0c0aa3c26 699 default : // saturate, just in case.
gatedClock 72:b4d0c0aa3c26 700 {
gatedClock 72:b4d0c0aa3c26 701 }
gatedClock 75:c2894d531f42 702 } // control processing.
gatedClock 71:4a5f256ecf7c 703
gatedClock 88:0b1b812945eb 704 // saturate value.
gatedClock 88:0b1b812945eb 705 if (dRemainingTime > dMaximum) dRemainingTime = dMaximum;
gatedClock 88:0b1b812945eb 706 if (dRemainingTime < 0) dRemainingTime = 0;
gatedClock 88:0b1b812945eb 707
gatedClock 75:c2894d531f42 708 // promote to global scope.
gatedClock 86:388c2b4b7cf5 709 giRemainingTime.dRemainingTime = dRemainingTime/GRANULARITY;
gatedClock 70:7c0743c28b11 710
gatedClock 70:7c0743c28b11 711 } // cookRemainingTime.
gatedClock 69:55b836e8ced7 712 /*----------------------------------------------//----------------------------*/
gatedClock 69:55b836e8ced7 713
gatedClock 69:55b836e8ced7 714
gatedClock 69:55b836e8ced7 715
gatedClock 69:55b836e8ced7 716
gatedClock 69:55b836e8ced7 717
gatedClock 69:55b836e8ced7 718
gatedClock 69:55b836e8ced7 719
gatedClock 69:55b836e8ced7 720
gatedClock 69:55b836e8ced7 721
gatedClock 69:55b836e8ced7 722
gatedClock 69:55b836e8ced7 723