Mike Moore / Mbed 2 deprecated RTOS_HW_07

homework 7

Dependencies:   mbed-rtos mbed C12832_lcd LM75B

main.cpp@91:b54500888b67, 2013-09-12 (annotated)

Committer:
gatedClock
Date:
Thu Sep 12 16:51:55 2013 +0000
Revision:
91:b54500888b67
Parent:
90:d9bb516141f1
Child:
92:be8d69aba1fc
first primitive speaker use.

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 91:b54500888b67 36 #define THREAD_2_WAITmS 1 // 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 89:290c96cd027f 62 #define BEEPTIME 3 // beep duration in S.
gatedClock 86:388c2b4b7cf5 63
gatedClock 65:e39360da5929 64 #define DEBUG1 // debug preprocessor control.
gatedClock 0:fcca4db7b32a 65 //--global_definitions--------------------------//------------------------------
gatedClock 26:bff592483cb1 66 struct tButtons // button ISR updates.
gatedClock 26:bff592483cb1 67 {
gatedClock 26:bff592483cb1 68 char cLeftButton; // cooktime +60S.
gatedClock 26:bff592483cb1 69 char cRightButton; // cooktime -60S.
gatedClock 26:bff592483cb1 70 char cTopButton; // start cook.
gatedClock 26:bff592483cb1 71 char cBottomButton; // stop cook.
gatedClock 58:ec630b6dd9b1 72 char cCenterButton; // center button pressed.
gatedClock 53:8c2baf5623c8 73 char cDoorOpen; // door open.
gatedClock 26:bff592483cb1 74 };
gatedClock 34:b449d2a7c786 75
gatedClock 71:4a5f256ecf7c 76 struct tRemainingTime // remaining time related.
gatedClock 71:4a5f256ecf7c 77 {
gatedClock 71:4a5f256ecf7c 78 char cControl; // countdown control.
gatedClock 71:4a5f256ecf7c 79 int dTotalTime; // initialize to this.
gatedClock 71:4a5f256ecf7c 80 int dRemainingTime; // the countdown value.
gatedClock 71:4a5f256ecf7c 81 };
gatedClock 71:4a5f256ecf7c 82
gatedClock 80:e3e1a2161435 83 struct tLCD // LCD related.
gatedClock 80:e3e1a2161435 84 {
gatedClock 80:e3e1a2161435 85 int dTotalCookTime; // display time in seconds.
gatedClock 80:e3e1a2161435 86 int dRemainingTime; // display time in seconds.
gatedClock 80:e3e1a2161435 87 float fCelsius; // temperature in celsius.
gatedClock 80:e3e1a2161435 88 };
gatedClock 80:e3e1a2161435 89
gatedClock 80:e3e1a2161435 90
gatedClock 80:e3e1a2161435 91
gatedClock 61:8026a9fc0cf1 92 Queue<int, 1> queueModTotalTime; // message to modify total time.
gatedClock 61:8026a9fc0cf1 93 Queue<int, 1> queueUpdateFSM; // message to inform FSM.
gatedClock 61:8026a9fc0cf1 94 Queue<int, 1> queueUpdateRemainingTime; // message to update remaining time.
gatedClock 71:4a5f256ecf7c 95 Queue<int, 1> queueSetRemainingTime; // tell countdown it's start time.
gatedClock 69:55b836e8ced7 96 Queue<int, 1> queueFSMnewState; // latest FSM state.
gatedClock 0:fcca4db7b32a 97 //--global_variables----------------------------//------------------------------
gatedClock 26:bff592483cb1 98 char gcSignalWaitEnable; // 1 to wait on a signal.
gatedClock 26:bff592483cb1 99 char gcSlowClock; // slow-clock signal.
gatedClock 33:34c1bef3c4ff 100 char gcInitializePipeline; // 1 to initialize pipeline state.
gatedClock 39:4e7e4d935a87 101 float gfCelsius; // from thermometer.
gatedClock 84:fee8fb80d190 102
gatedClock 26:bff592483cb1 103 tButtons gtButtons; // ISR button updates.
gatedClock 70:7c0743c28b11 104
gatedClock 71:4a5f256ecf7c 105 tRemainingTime giRemainingTime; // structure instance.
gatedClock 80:e3e1a2161435 106 tLCD giLCD; // structure instance.
gatedClock 71:4a5f256ecf7c 107
gatedClock 70:7c0743c28b11 108 int gdDiagTotalTime;
gatedClock 0:fcca4db7b32a 109 //--global_instances----------------------------//------------------------------
gatedClock 55:17f3354da63a 110 Serial pc(USBTX, USBRX); // PuTTY terminal communication.
gatedClock 39:4e7e4d935a87 111 LM75B temperature(p28,p27); // on-board thermometer.
gatedClock 9:cfdb9aa5857c 112 C12832_LCD lcd; // LCD object.
gatedClock 53:8c2baf5623c8 113 DigitalOut led0(LED4); // magnetron.
gatedClock 39:4e7e4d935a87 114 DigitalOut led1(LED3);
gatedClock 39:4e7e4d935a87 115 DigitalOut led2(LED2);
gatedClock 39:4e7e4d935a87 116 DigitalOut led3(LED1);
gatedClock 91:b54500888b67 117 DigitalOut speaker(p26); // speaker device.
gatedClock 0:fcca4db7b32a 118
gatedClock 0:fcca4db7b32a 119 InterruptIn iJoyStickUp (p15); // joystick up rising edge.
gatedClock 0:fcca4db7b32a 120 InterruptIn iJoyStickDown (p12); // joystick down rising edge.
gatedClock 0:fcca4db7b32a 121 InterruptIn iJoyStickLeft (p13); // joystick left rising edge.
gatedClock 0:fcca4db7b32a 122 InterruptIn iJoyStickRight (p16); // joystick right rising edge.
gatedClock 0:fcca4db7b32a 123 InterruptIn iJoyStickCenter(p14); // 1 if joystick middle pressed.
gatedClock 66:4a0006fa5cc1 124
gatedClock 66:4a0006fa5cc1 125 Timer debounceTimer; // button debounce timer.
gatedClock 89:290c96cd027f 126 Timer beepTimer; // beep-duration timer.
gatedClock 0:fcca4db7b32a 127
gatedClock 50:2928c3cbdcc3 128 Ticker tickerButtonStateManager; // manage the button states.
gatedClock 19:92b11e30aaaf 129 Ticker tickerSlowClock; // generate a ~1Hz clock.
gatedClock 77:73e4fd83642f 130 Ticker tickerCookCountdown; // remaining cook time.
gatedClock 63:63f362bcc2ac 131
gatedClock 63:63f362bcc2ac 132 // Timer timerFSMdone; // duration of FSM 'done' state.
gatedClock 40:7afff79f0d8b 133
gatedClock 0:fcca4db7b32a 134 //-------prototypes-----------------------------//------------------------------
gatedClock 49:56f790977983 135
gatedClock 19:92b11e30aaaf 136 void slowClock(); // 1Hz or thereabouts.
gatedClock 49:56f790977983 137
gatedClock 9:cfdb9aa5857c 138 void initialization(); // initialize settings.
gatedClock 13:21f27ba467c2 139
gatedClock 13:21f27ba467c2 140 void ISRleftButtonRising(); // cook-time increase.
gatedClock 13:21f27ba467c2 141 void ISRleftButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 142 void ISRrightButtonRising(); // cook-time decrease.
gatedClock 13:21f27ba467c2 143 void ISRrightButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 144 void ISRtopButtonRising(); // cook start.
gatedClock 13:21f27ba467c2 145 void ISRtopButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 146 void ISRbottomButtonRising(); // cook stop.
gatedClock 13:21f27ba467c2 147 void ISRbottomButtonFalling(); // button-release debounce.
gatedClock 13:21f27ba467c2 148 void ISRcenterButtonRising(); // door state toggle.
gatedClock 13:21f27ba467c2 149 void ISRcenterButtonFalling(); // button-release debounce.
gatedClock 16:db7f0b3b2605 150 void disableSignalWaiting(); // break from signal waiting.
gatedClock 39:4e7e4d935a87 151
gatedClock 54:b0e7352d2516 152 void threadButtonStateManager(void const *args);
gatedClock 50:2928c3cbdcc3 153 void threadTotalTimeControl(void const *args);
gatedClock 57:0432c68ad232 154 void threadCookStateFSM(void const *args);
gatedClock 71:4a5f256ecf7c 155 void tickCookRemainingTime(); // remaining time countdown.
gatedClock 50:2928c3cbdcc3 156
gatedClock 40:7afff79f0d8b 157 void temperatureThread(void const *args); // temperature measurement.
gatedClock 42:266d5bbbfd19 158 void LCDthread (void const *args); // LCD display thread.
gatedClock 0:fcca4db7b32a 159 //==============================================//==============================
gatedClock 0:fcca4db7b32a 160 int main(void)
gatedClock 0:fcca4db7b32a 161 {
gatedClock 16:db7f0b3b2605 162 char cLeftButtonState; // 1 means button was pressed.
gatedClock 16:db7f0b3b2605 163
gatedClock 16:db7f0b3b2605 164
gatedClock 16:db7f0b3b2605 165
gatedClock 14:d3bb343cd5b2 166 iJoyStickLeft.rise (&ISRleftButtonRising);
gatedClock 14:d3bb343cd5b2 167 iJoyStickLeft.fall (&ISRleftButtonFalling);
gatedClock 9:cfdb9aa5857c 168
gatedClock 14:d3bb343cd5b2 169 iJoyStickRight.rise(&ISRrightButtonRising);
gatedClock 14:d3bb343cd5b2 170 iJoyStickRight.fall(&ISRrightButtonFalling);
gatedClock 14:d3bb343cd5b2 171
gatedClock 14:d3bb343cd5b2 172 iJoyStickUp.rise (&ISRtopButtonRising);
gatedClock 14:d3bb343cd5b2 173 iJoyStickUp.fall (&ISRtopButtonFalling);
gatedClock 9:cfdb9aa5857c 174
gatedClock 14:d3bb343cd5b2 175 iJoyStickDown.rise (&ISRbottomButtonRising);
gatedClock 14:d3bb343cd5b2 176 iJoyStickDown.fall (&ISRbottomButtonFalling);
gatedClock 7:9fbd1d540863 177
gatedClock 14:d3bb343cd5b2 178 iJoyStickCenter.rise(&ISRcenterButtonRising);
gatedClock 14:d3bb343cd5b2 179 iJoyStickCenter.fall(&ISRcenterButtonFalling);
gatedClock 9:cfdb9aa5857c 180
gatedClock 66:4a0006fa5cc1 181 debounceTimer.start(); // kick-off debounce timer.
gatedClock 66:4a0006fa5cc1 182
gatedClock 33:34c1bef3c4ff 183 gcInitializePipeline = 1; // tell pipeline to initialize.
gatedClock 16:db7f0b3b2605 184
gatedClock 9:cfdb9aa5857c 185 initialization(); // initialize variables.
gatedClock 21:b794d189c36b 186 gcSlowClock = 0;
gatedClock 44:d16e813e61ef 187 led1 = 0;
gatedClock 53:8c2baf5623c8 188 gtButtons.cDoorOpen = 0; // initialize with door closed.
gatedClock 63:63f362bcc2ac 189
gatedClock 63:63f362bcc2ac 190 // timerFSMdone.start(); // start 'done' timer.
gatedClock 49:56f790977983 191
gatedClock 86:388c2b4b7cf5 192 // tickerSlowClock.attach_us(&slowClock ,SLOWCLOCKuS);
gatedClock 64:255295f1d782 193
gatedClock 75:c2894d531f42 194
gatedClock 86:388c2b4b7cf5 195 tickerCookCountdown.attach_us(&tickCookRemainingTime,1000000/GRANULARITY);
gatedClock 54:b0e7352d2516 196
gatedClock 40:7afff79f0d8b 197
gatedClock 70:7c0743c28b11 198 Thread thread_1(temperatureThread ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 199 Thread thread_2(LCDthread ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 200 Thread thread_3(threadTotalTimeControl ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 201 Thread thread_4(threadButtonStateManager,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL); // was osPriorityIdle
gatedClock 70:7c0743c28b11 202 Thread thread_5(threadCookStateFSM ,NULL,osPriorityIdle,DEFAULT_STACK_SIZE,NULL);
gatedClock 70:7c0743c28b11 203
gatedClock 66:4a0006fa5cc1 204 //Thread thread_4(threadButtonStateManager);
gatedClock 52:8ba6a0c91a89 205
gatedClock 40:7afff79f0d8b 206
gatedClock 59:5e45b5e4a874 207 // the message-receiving threads need 'else' for message-receive-timeout.
gatedClock 91:b54500888b67 208
gatedClock 91:b54500888b67 209 while(1)
gatedClock 91:b54500888b67 210 {
gatedClock 91:b54500888b67 211 speaker = 1;
gatedClock 91:b54500888b67 212 wait(0.001);
gatedClock 91:b54500888b67 213 speaker = 0;
gatedClock 91:b54500888b67 214 wait(0.001);
gatedClock 91:b54500888b67 215
gatedClock 91:b54500888b67 216
gatedClock 91:b54500888b67 217 }
gatedClock 9:cfdb9aa5857c 218
gatedClock 14:d3bb343cd5b2 219 while(1)
gatedClock 0:fcca4db7b32a 220 {
gatedClock 75:c2894d531f42 221 // pc.printf("\n\r gdDiagTotalTime %d",gdDiagTotalTime);
gatedClock 70:7c0743c28b11 222
gatedClock 70:7c0743c28b11 223 Thread::wait(1000);
gatedClock 16:db7f0b3b2605 224
gatedClock 16:db7f0b3b2605 225
gatedClock 16:db7f0b3b2605 226
gatedClock 14:d3bb343cd5b2 227
gatedClock 0:fcca4db7b32a 228 }
gatedClock 19:92b11e30aaaf 229 }
gatedClock 19:92b11e30aaaf 230 /*----------------------------------------------//----------------------------*/
gatedClock 59:5e45b5e4a874 231
gatedClock 59:5e45b5e4a874 232 // this serves as the bottom-half for all of the button-press IRSs.
gatedClock 59:5e45b5e4a874 233 // it sends button-status messages to other threads, and it also
gatedClock 59:5e45b5e4a874 234 // clears the button-state globals to prepare them for the next
gatedClock 59:5e45b5e4a874 235 // button press.
gatedClock 59:5e45b5e4a874 236
gatedClock 59:5e45b5e4a874 237
gatedClock 54:b0e7352d2516 238 void threadButtonStateManager(void const *args)
gatedClock 50:2928c3cbdcc3 239 {
gatedClock 56:18cff6eb91db 240 int dMessage; // message.
gatedClock 50:2928c3cbdcc3 241
gatedClock 54:b0e7352d2516 242 while(1) // thread loop.
gatedClock 67:1d9c85a4c3c1 243 {
gatedClock 54:b0e7352d2516 244 //--- // TOTAL TIME CONTROL.
gatedClock 56:18cff6eb91db 245
gatedClock 56:18cff6eb91db 246 // encoded integers will be sent,
gatedClock 56:18cff6eb91db 247 // not pointers.
gatedClock 50:2928c3cbdcc3 248
gatedClock 50:2928c3cbdcc3 249 if (gtButtons.cLeftButton) // total time increment button.
gatedClock 50:2928c3cbdcc3 250 {
gatedClock 54:b0e7352d2516 251 dMessage = MSG_INC_TIME; // set message.
gatedClock 69:55b836e8ced7 252 queueModTotalTime.put((int *) dMessage,1);// pretend it's a pointer.
gatedClock 50:2928c3cbdcc3 253 gtButtons.cLeftButton = 0; // clear the button state.
gatedClock 50:2928c3cbdcc3 254 }
gatedClock 67:1d9c85a4c3c1 255
gatedClock 59:5e45b5e4a874 256 if (gtButtons.cRightButton) // total time decrement button.
gatedClock 50:2928c3cbdcc3 257 {
gatedClock 54:b0e7352d2516 258 dMessage = MSG_DEC_TIME; // set message.
gatedClock 69:55b836e8ced7 259 queueModTotalTime.put((int *) dMessage,1);// pretend it's a pointer.
gatedClock 50:2928c3cbdcc3 260 gtButtons.cRightButton = 0; // clear the button state.
gatedClock 50:2928c3cbdcc3 261 }
gatedClock 67:1d9c85a4c3c1 262
gatedClock 59:5e45b5e4a874 263 //--- // COOK-STATE FSM.
gatedClock 59:5e45b5e4a874 264
gatedClock 59:5e45b5e4a874 265 if (gtButtons.cTopButton) // start-cook button.
gatedClock 58:ec630b6dd9b1 266 {
gatedClock 59:5e45b5e4a874 267 dMessage = MSG_START; // set message.
gatedClock 69:55b836e8ced7 268 queueUpdateFSM.put((int *) dMessage,1); // pretend it's a pointer.
gatedClock 59:5e45b5e4a874 269 gtButtons.cTopButton = 0; // clear the button state.
gatedClock 58:ec630b6dd9b1 270 }
gatedClock 67:1d9c85a4c3c1 271
gatedClock 59:5e45b5e4a874 272 if (gtButtons.cBottomButton) // stop-cook button.
gatedClock 58:ec630b6dd9b1 273 {
gatedClock 59:5e45b5e4a874 274 dMessage = MSG_STOP; // set message.
gatedClock 69:55b836e8ced7 275 queueUpdateFSM.put((int *) dMessage,1); // pretend it's a pointer.
gatedClock 59:5e45b5e4a874 276 gtButtons.cBottomButton = 0; // clear the button state.
gatedClock 58:ec630b6dd9b1 277 }
gatedClock 67:1d9c85a4c3c1 278
gatedClock 59:5e45b5e4a874 279 if (gtButtons.cCenterButton) // door-state-toggle.
gatedClock 58:ec630b6dd9b1 280 {
gatedClock 59:5e45b5e4a874 281 dMessage = gtButtons.cDoorOpen; // determined in ISR.
gatedClock 69:55b836e8ced7 282 queueUpdateFSM.put((int *) dMessage,1); // pretend it's a pointer.
gatedClock 59:5e45b5e4a874 283 gtButtons.cCenterButton = 0; // clear the button state.
gatedClock 58:ec630b6dd9b1 284 }
gatedClock 59:5e45b5e4a874 285 //---
gatedClock 58:ec630b6dd9b1 286
gatedClock 54:b0e7352d2516 287 Thread::wait(THREAD_4_WAITmS); // multitasking.
gatedClock 54:b0e7352d2516 288 } // thread loop.
gatedClock 54:b0e7352d2516 289 } // threadButtonStateManager.
gatedClock 50:2928c3cbdcc3 290 /*----------------------------------------------//----------------------------*/
gatedClock 51:e5ec74c49b01 291 // the incoming messages are mutually-exclusive.
gatedClock 51:e5ec74c49b01 292 // total time controller.
gatedClock 51:e5ec74c49b01 293 void threadTotalTimeControl(void const *args)
gatedClock 50:2928c3cbdcc3 294 {
gatedClock 51:e5ec74c49b01 295 static int dTotalTime = 0; // total time variable.
gatedClock 60:e10bf95bbc96 296 int dMessage; // message.
gatedClock 51:e5ec74c49b01 297 osEvent queueEvent; // queue event.
gatedClock 70:7c0743c28b11 298 int dRC;
gatedClock 50:2928c3cbdcc3 299
gatedClock 50:2928c3cbdcc3 300 while(1) // thread loop.
gatedClock 50:2928c3cbdcc3 301 {
gatedClock 50:2928c3cbdcc3 302
gatedClock 55:17f3354da63a 303 queueEvent = queueModTotalTime.get(1); // get message.
gatedClock 51:e5ec74c49b01 304 if (queueEvent.status == osEventMessage)
gatedClock 51:e5ec74c49b01 305 {
gatedClock 56:18cff6eb91db 306 dMessage = (int) queueEvent.value.p; // interpret as integer, not pointer.
gatedClock 54:b0e7352d2516 307
gatedClock 54:b0e7352d2516 308 // increment total time.
gatedClock 56:18cff6eb91db 309 if (dMessage == MSG_INC_TIME) dTotalTime += 60;
gatedClock 54:b0e7352d2516 310
gatedClock 54:b0e7352d2516 311 // decrement total time.
gatedClock 56:18cff6eb91db 312 if (dMessage == MSG_DEC_TIME) dTotalTime -= 60;
gatedClock 65:e39360da5929 313
gatedClock 65:e39360da5929 314 // saturations.
gatedClock 65:e39360da5929 315 if (dTotalTime > 180) dTotalTime = 180;
gatedClock 65:e39360da5929 316 if (dTotalTime < 0) dTotalTime = 0;
gatedClock 65:e39360da5929 317
gatedClock 70:7c0743c28b11 318 dRC = queueSetRemainingTime.put((int *) dTotalTime,1);
gatedClock 75:c2894d531f42 319 giRemainingTime.dTotalTime = dTotalTime;
gatedClock 51:e5ec74c49b01 320 }
gatedClock 81:12bc26973cb8 321
gatedClock 50:2928c3cbdcc3 322 Thread::wait(THREAD_3_WAITmS); // multitasking.
gatedClock 50:2928c3cbdcc3 323 } // thread loop.
gatedClock 50:2928c3cbdcc3 324 } // threadTotalTimeControl.
gatedClock 33:34c1bef3c4ff 325 /*----------------------------------------------//----------------------------*/
gatedClock 81:12bc26973cb8 326
gatedClock 57:0432c68ad232 327 void threadCookStateFSM(void const *args) // cook-cycle FSM.
gatedClock 57:0432c68ad232 328 {
gatedClock 83:2e01f2a799ba 329 int dFSMstate = FSM_IDLE; // state of this FSM.
gatedClock 83:2e01f2a799ba 330 int dFSMstateLast = FSM_IDLE; // previous FSM state.
gatedClock 83:2e01f2a799ba 331 int dButtonState; // received button state.
gatedClock 83:2e01f2a799ba 332 int dRemainingTime = 0; // received remaining time.
gatedClock 62:48e7c196e2a5 333
gatedClock 83:2e01f2a799ba 334 int dButtonStart = 0;
gatedClock 83:2e01f2a799ba 335 int dButtonStop = 0;
gatedClock 83:2e01f2a799ba 336 int dDoorOpen = 0;
gatedClock 81:12bc26973cb8 337
gatedClock 81:12bc26973cb8 338 osEvent queueEvent; // from button state manager.
gatedClock 89:290c96cd027f 339 beepTimer.start(); // run the beep timer.
gatedClock 75:c2894d531f42 340
gatedClock 62:48e7c196e2a5 341
gatedClock 63:63f362bcc2ac 342
gatedClock 57:0432c68ad232 343 while(1) // thread loop.
gatedClock 57:0432c68ad232 344 {
gatedClock 81:12bc26973cb8 345
gatedClock 74:4debb8f2e21d 346 switch (dFSMstate) // cook-mode state machine.
gatedClock 62:48e7c196e2a5 347 {
gatedClock 82:73fa3fe8a217 348 //---
gatedClock 73:44739860198b 349 case FSM_IDLE : // IDLE.
gatedClock 73:44739860198b 350 {
gatedClock 89:290c96cd027f 351 led0 = 0;
gatedClock 75:c2894d531f42 352 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 80:e3e1a2161435 353 {
gatedClock 75:c2894d531f42 354 }
gatedClock 80:e3e1a2161435 355
gatedClock 80:e3e1a2161435 356 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 357 giLCD.dRemainingTime = 0; // suppress remaining time display.
gatedClock 80:e3e1a2161435 358 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 359
gatedClock 78:7df160e0db7b 360 giRemainingTime.cControl = RT_PRELOAD;
gatedClock 76:74c454c9d75b 361 dFSMstateLast = dFSMstate; // determine next state.
gatedClock 75:c2894d531f42 362 if ((dButtonStart == 1) && (dDoorOpen == 0) && (giRemainingTime.dTotalTime > 0)) dFSMstate = FSM_COOK;
gatedClock 73:44739860198b 363 break;
gatedClock 73:44739860198b 364 }
gatedClock 82:73fa3fe8a217 365 //---
gatedClock 73:44739860198b 366 case FSM_COOK : // COOK.
gatedClock 73:44739860198b 367 {
gatedClock 75:c2894d531f42 368 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 75:c2894d531f42 369 {
gatedClock 75:c2894d531f42 370 giRemainingTime.cControl = RT_DECREMENT;
gatedClock 75:c2894d531f42 371 }
gatedClock 80:e3e1a2161435 372
gatedClock 80:e3e1a2161435 373 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 374 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 375 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 376
gatedClock 80:e3e1a2161435 377
gatedClock 76:74c454c9d75b 378
gatedClock 76:74c454c9d75b 379 dFSMstateLast = dFSMstate; // determine next state.
gatedClock 78:7df160e0db7b 380 if ((dDoorOpen == 1) && (dRemainingTime > 0)) dFSMstate = FSM_PAUSE;
gatedClock 78:7df160e0db7b 381 else
gatedClock 76:74c454c9d75b 382 if (dButtonStop) dFSMstate = FSM_IDLE;
gatedClock 78:7df160e0db7b 383 else
gatedClock 78:7df160e0db7b 384 if (dRemainingTime <= 0) dFSMstate = FSM_DONE;
gatedClock 73:44739860198b 385 break;
gatedClock 73:44739860198b 386 }
gatedClock 82:73fa3fe8a217 387 //---
gatedClock 73:44739860198b 388 case FSM_PAUSE : // PAUSE.
gatedClock 73:44739860198b 389 {
gatedClock 75:c2894d531f42 390
gatedClock 75:c2894d531f42 391 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 75:c2894d531f42 392 {
gatedClock 75:c2894d531f42 393 }
gatedClock 80:e3e1a2161435 394
gatedClock 80:e3e1a2161435 395
gatedClock 80:e3e1a2161435 396 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 397 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 398 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 399
gatedClock 80:e3e1a2161435 400
gatedClock 75:c2894d531f42 401 giRemainingTime.cControl = RT_PAUSE;
gatedClock 75:c2894d531f42 402 // determine next state.
gatedClock 75:c2894d531f42 403 dFSMstateLast = dFSMstate;
gatedClock 78:7df160e0db7b 404 if ((dButtonStart == 1) && (dDoorOpen == 0) && (giRemainingTime.dTotalTime > 0)) dFSMstate = FSM_CONTINUE;
gatedClock 75:c2894d531f42 405 else
gatedClock 78:7df160e0db7b 406 if (dButtonStop) dFSMstate = FSM_IDLE;
gatedClock 73:44739860198b 407 break;
gatedClock 73:44739860198b 408 }
gatedClock 78:7df160e0db7b 409
gatedClock 82:73fa3fe8a217 410 //---
gatedClock 79:4286319e48b4 411 case FSM_CONTINUE : // CONTINUE.
gatedClock 78:7df160e0db7b 412 {
gatedClock 78:7df160e0db7b 413
gatedClock 78:7df160e0db7b 414 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 78:7df160e0db7b 415 {
gatedClock 78:7df160e0db7b 416 }
gatedClock 80:e3e1a2161435 417
gatedClock 80:e3e1a2161435 418
gatedClock 80:e3e1a2161435 419 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 420 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 421 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 422
gatedClock 80:e3e1a2161435 423
gatedClock 78:7df160e0db7b 424 giRemainingTime.cControl = RT_DECREMENT;
gatedClock 78:7df160e0db7b 425 // determine next state.
gatedClock 78:7df160e0db7b 426 dFSMstateLast = dFSMstate;
gatedClock 78:7df160e0db7b 427 if (dRemainingTime <= 0) dFSMstate = FSM_DONE;
gatedClock 78:7df160e0db7b 428 else
gatedClock 78:7df160e0db7b 429 if (dButtonStop) dFSMstate = FSM_IDLE;
gatedClock 79:4286319e48b4 430 else
gatedClock 79:4286319e48b4 431 if ((dDoorOpen == 1) && (dRemainingTime > 0)) dFSMstate = FSM_PAUSE;
gatedClock 78:7df160e0db7b 432 break;
gatedClock 78:7df160e0db7b 433 }
gatedClock 78:7df160e0db7b 434
gatedClock 78:7df160e0db7b 435
gatedClock 82:73fa3fe8a217 436 //---
gatedClock 73:44739860198b 437 case FSM_DONE : // DONE.
gatedClock 73:44739860198b 438 {
gatedClock 89:290c96cd027f 439 led0 = 1;
gatedClock 75:c2894d531f42 440 if (dFSMstate != dFSMstateLast) // if just entered state.
gatedClock 75:c2894d531f42 441 {
gatedClock 89:290c96cd027f 442 beepTimer.reset(); // clear the beep timer.
gatedClock 75:c2894d531f42 443 }
gatedClock 80:e3e1a2161435 444
gatedClock 80:e3e1a2161435 445
gatedClock 80:e3e1a2161435 446 giLCD.dTotalCookTime = giRemainingTime.dTotalTime;
gatedClock 80:e3e1a2161435 447 giLCD.dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 80:e3e1a2161435 448 giLCD.fCelsius = 0;
gatedClock 80:e3e1a2161435 449
gatedClock 80:e3e1a2161435 450
gatedClock 80:e3e1a2161435 451
gatedClock 75:c2894d531f42 452 giRemainingTime.cControl = RT_CLEAR;
gatedClock 75:c2894d531f42 453 // determine next state.
gatedClock 75:c2894d531f42 454 dFSMstateLast = dFSMstate;
gatedClock 89:290c96cd027f 455 if (beepTimer.read() >= BEEPTIME) dFSMstate = FSM_IDLE;
gatedClock 89:290c96cd027f 456 else dFSMstate = FSM_DONE;
gatedClock 73:44739860198b 457 break;
gatedClock 73:44739860198b 458 }
gatedClock 82:73fa3fe8a217 459 //---
gatedClock 73:44739860198b 460 default : {dFSMstate = FSM_IDLE; break;}
gatedClock 73:44739860198b 461
gatedClock 62:48e7c196e2a5 462 }
gatedClock 73:44739860198b 463
gatedClock 63:63f362bcc2ac 464
gatedClock 75:c2894d531f42 465
gatedClock 75:c2894d531f42 466 queueEvent = queueUpdateFSM.get(1); // threadButtonStateManager
gatedClock 60:e10bf95bbc96 467 if (queueEvent.status == osEventMessage)// update state variable.
gatedClock 60:e10bf95bbc96 468 {
gatedClock 61:8026a9fc0cf1 469 // interpret as integer, not pointer.
gatedClock 61:8026a9fc0cf1 470 dButtonState = (int) queueEvent.value.p;
gatedClock 63:63f362bcc2ac 471
gatedClock 75:c2894d531f42 472
gatedClock 69:55b836e8ced7 473
gatedClock 63:63f362bcc2ac 474 if (dButtonState == MSG_START)
gatedClock 63:63f362bcc2ac 475 {
gatedClock 63:63f362bcc2ac 476 dButtonStart = 1;
gatedClock 63:63f362bcc2ac 477 dButtonStop = 0;
gatedClock 79:4286319e48b4 478
gatedClock 79:4286319e48b4 479 // if the door is open, ignore
gatedClock 79:4286319e48b4 480 // and cancel 'start' state.
gatedClock 79:4286319e48b4 481 if (dDoorOpen) dButtonStart = 0;
gatedClock 63:63f362bcc2ac 482 }
gatedClock 63:63f362bcc2ac 483 if (dButtonState == MSG_STOP)
gatedClock 63:63f362bcc2ac 484 {
gatedClock 63:63f362bcc2ac 485 dButtonStart = 0;
gatedClock 63:63f362bcc2ac 486 dButtonStop = 1;
gatedClock 63:63f362bcc2ac 487 }
gatedClock 63:63f362bcc2ac 488
gatedClock 63:63f362bcc2ac 489 if (dButtonState == MSG_OPEN)
gatedClock 63:63f362bcc2ac 490 {
gatedClock 79:4286319e48b4 491 // if the door opens, clear current 'start' state.
gatedClock 79:4286319e48b4 492 dDoorOpen = 1;
gatedClock 79:4286319e48b4 493 dButtonStart = 0;
gatedClock 63:63f362bcc2ac 494 }
gatedClock 63:63f362bcc2ac 495
gatedClock 63:63f362bcc2ac 496 if (dButtonState == MSG_CLOSED)
gatedClock 63:63f362bcc2ac 497 {
gatedClock 63:63f362bcc2ac 498 dDoorOpen = 0;
gatedClock 63:63f362bcc2ac 499 }
gatedClock 63:63f362bcc2ac 500
gatedClock 61:8026a9fc0cf1 501 }
gatedClock 90:d9bb516141f1 502 else // no queue update available.
gatedClock 90:d9bb516141f1 503 {
gatedClock 90:d9bb516141f1 504 dButtonStart = 0;
gatedClock 90:d9bb516141f1 505 dButtonStop = 0;
gatedClock 90:d9bb516141f1 506 // dDoorOpen = 0;
gatedClock 90:d9bb516141f1 507
gatedClock 90:d9bb516141f1 508
gatedClock 90:d9bb516141f1 509 }
gatedClock 75:c2894d531f42 510
gatedClock 75:c2894d531f42 511 // fetch from global scope.
gatedClock 75:c2894d531f42 512 dRemainingTime = giRemainingTime.dRemainingTime;
gatedClock 69:55b836e8ced7 513
gatedClock 75:c2894d531f42 514 // pipeline variable.
gatedClock 57:0432c68ad232 515 Thread::wait(THREAD_5_WAITmS); // multitasking.
gatedClock 57:0432c68ad232 516 } // thread loop.
gatedClock 57:0432c68ad232 517 } // threadCookStateFSM.
gatedClock 57:0432c68ad232 518 /*----------------------------------------------//----------------------------*/
gatedClock 19:92b11e30aaaf 519 void slowClock(void) // 1Hz or thereabouts.
gatedClock 19:92b11e30aaaf 520 {
gatedClock 24:d39516e077ea 521 gcSlowClock = !gcSlowClock; // toggle clock.
gatedClock 19:92b11e30aaaf 522 }
gatedClock 19:92b11e30aaaf 523 /*----------------------------------------------//----------------------------*/
gatedClock 0:fcca4db7b32a 524 void initialization(void) // program initializations.
gatedClock 0:fcca4db7b32a 525 {
gatedClock 16:db7f0b3b2605 526 gcSignalWaitEnable = 1;
gatedClock 0:fcca4db7b32a 527 }
gatedClock 0:fcca4db7b32a 528 /*----------------------------------------------//----------------------------*/
gatedClock 26:bff592483cb1 529 void ISRleftButtonRising(void) // cooktime plus 60s.
gatedClock 1:9188d4668a88 530 {
gatedClock 66:4a0006fa5cc1 531 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 26:bff592483cb1 532 gtButtons.cLeftButton = 1; // detect left button.
gatedClock 9:cfdb9aa5857c 533
gatedClock 66:4a0006fa5cc1 534 debounceTimer.reset(); // begin debounce period.
gatedClock 11:9cae003da12b 535 }
gatedClock 1:9188d4668a88 536 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 537 void ISRleftButtonFalling(void) // button-release debounce.
gatedClock 1:9188d4668a88 538 {
gatedClock 66:4a0006fa5cc1 539 debounceTimer.reset(); // begin debounce period.
gatedClock 11:9cae003da12b 540 }
gatedClock 2:665ffa57031f 541 /*----------------------------------------------//----------------------------*/
gatedClock 26:bff592483cb1 542 void ISRrightButtonRising(void) // cooktime -60s.
gatedClock 12:e40272e1fd8f 543 {
gatedClock 66:4a0006fa5cc1 544 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 26:bff592483cb1 545 gtButtons.cRightButton = 1; // detect right button.
gatedClock 12:e40272e1fd8f 546
gatedClock 66:4a0006fa5cc1 547 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 548 }
gatedClock 12:e40272e1fd8f 549 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 550 void ISRrightButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 551 {
gatedClock 66:4a0006fa5cc1 552 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 553 }
gatedClock 12:e40272e1fd8f 554 /*----------------------------------------------//----------------------------*/
gatedClock 26:bff592483cb1 555 void ISRtopButtonRising(void) // cook start.
gatedClock 12:e40272e1fd8f 556 {
gatedClock 66:4a0006fa5cc1 557 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 26:bff592483cb1 558 gtButtons.cTopButton = 1; // detect top button.
gatedClock 12:e40272e1fd8f 559
gatedClock 66:4a0006fa5cc1 560 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 561 }
gatedClock 12:e40272e1fd8f 562 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 563 void ISRtopButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 564 {
gatedClock 66:4a0006fa5cc1 565 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 566 }
gatedClock 12:e40272e1fd8f 567 /*----------------------------------------------//----------------------------*/
gatedClock 53:8c2baf5623c8 568 // front-end control of magnetron off.
gatedClock 53:8c2baf5623c8 569 // due to physical danger, the magnetron is turned off immediately
gatedClock 53:8c2baf5623c8 570 // upon off-button press, in the interrupt that it generates.
gatedClock 53:8c2baf5623c8 571
gatedClock 26:bff592483cb1 572 void ISRbottomButtonRising(void) // cook stop.
gatedClock 12:e40272e1fd8f 573 {
gatedClock 66:4a0006fa5cc1 574 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 66:4a0006fa5cc1 575 {
gatedClock 66:4a0006fa5cc1 576 led0 = 0; // magnetron off.
gatedClock 66:4a0006fa5cc1 577 gtButtons.cBottomButton = 1; // detect bottom button.
gatedClock 66:4a0006fa5cc1 578 }
gatedClock 66:4a0006fa5cc1 579 debounceTimer.reset(); // begin debounce period.
gatedClock 66:4a0006fa5cc1 580 }
gatedClock 12:e40272e1fd8f 581 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 582 void ISRbottomButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 583 {
gatedClock 66:4a0006fa5cc1 584 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 585 }
gatedClock 12:e40272e1fd8f 586 /*----------------------------------------------//----------------------------*/
gatedClock 53:8c2baf5623c8 587 // front-end control of magnetron off.
gatedClock 53:8c2baf5623c8 588 // due to physical danger, the magnetron is turned off immediately
gatedClock 53:8c2baf5623c8 589 // upon detection of an open door.
gatedClock 53:8c2baf5623c8 590
gatedClock 26:bff592483cb1 591 void ISRcenterButtonRising(void) // toggle door state.
gatedClock 12:e40272e1fd8f 592 {
gatedClock 66:4a0006fa5cc1 593 if (debounceTimer.read_ms() > DEBOUNCEmS)
gatedClock 66:4a0006fa5cc1 594 {
gatedClock 66:4a0006fa5cc1 595 if (gtButtons.cDoorOpen == MSG_OPEN) // calculate door state.
gatedClock 66:4a0006fa5cc1 596 gtButtons.cDoorOpen = MSG_CLOSED;
gatedClock 66:4a0006fa5cc1 597 else
gatedClock 66:4a0006fa5cc1 598 gtButtons.cDoorOpen = MSG_OPEN;
gatedClock 53:8c2baf5623c8 599
gatedClock 59:5e45b5e4a874 600 // magnetron off.
gatedClock 66:4a0006fa5cc1 601 if (gtButtons.cDoorOpen == MSG_OPEN) led0 = 0;
gatedClock 58:ec630b6dd9b1 602
gatedClock 66:4a0006fa5cc1 603 gtButtons.cCenterButton = 1;
gatedClock 66:4a0006fa5cc1 604 }
gatedClock 66:4a0006fa5cc1 605 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 606 }
gatedClock 12:e40272e1fd8f 607 /*----------------------------------------------//----------------------------*/
gatedClock 15:5eaa2ab1d00d 608 void ISRcenterButtonFalling(void) // button-release debounce.
gatedClock 12:e40272e1fd8f 609 {
gatedClock 66:4a0006fa5cc1 610 debounceTimer.reset(); // begin debounce period.
gatedClock 12:e40272e1fd8f 611 }
gatedClock 12:e40272e1fd8f 612 /*----------------------------------------------//----------------------------*/
gatedClock 40:7afff79f0d8b 613 void temperatureThread(void const *args) // temperature measurement.
gatedClock 39:4e7e4d935a87 614 {
gatedClock 45:e3207684e841 615 while(1) // thread loop.
gatedClock 45:e3207684e841 616 {
gatedClock 45:e3207684e841 617 gfCelsius = temperature.read(); // physical measurement.
gatedClock 40:7afff79f0d8b 618
gatedClock 45:e3207684e841 619 Thread::wait(THREAD_1_WAITmS); // multitasking.
gatedClock 45:e3207684e841 620 } // thread loop.
gatedClock 45:e3207684e841 621 } // temperatureThread.
gatedClock 42:266d5bbbfd19 622 /*----------------------------------------------//----------------------------*/
gatedClock 42:266d5bbbfd19 623 void LCDthread(void const *args) // LCD display thread.
gatedClock 42:266d5bbbfd19 624 {
gatedClock 67:1d9c85a4c3c1 625
gatedClock 67:1d9c85a4c3c1 626 static int dLCDtotalCookTimeSec = 0; // sample current values.
gatedClock 67:1d9c85a4c3c1 627 static int dCookTimeRemainingSec = 0;
gatedClock 67:1d9c85a4c3c1 628 static float fLCDcelsius = 0.0;
gatedClock 67:1d9c85a4c3c1 629
gatedClock 67:1d9c85a4c3c1 630 // remember previous values.
gatedClock 67:1d9c85a4c3c1 631 static int dLCDtotalCookTimeSecLast = 0;
gatedClock 67:1d9c85a4c3c1 632 static int dCookTimeRemainingSecLast = 0;
gatedClock 67:1d9c85a4c3c1 633 static float fLCDcelsiusLast = 0.0;
gatedClock 67:1d9c85a4c3c1 634
gatedClock 44:d16e813e61ef 635 while(1) // thread loop.
gatedClock 44:d16e813e61ef 636 {
gatedClock 67:1d9c85a4c3c1 637 // don't allow the values to
gatedClock 67:1d9c85a4c3c1 638 // change in the middle of the
gatedClock 67:1d9c85a4c3c1 639 // below else the anti-blink
gatedClock 67:1d9c85a4c3c1 640 // code won't work.
gatedClock 80:e3e1a2161435 641 dLCDtotalCookTimeSec = giLCD.dTotalCookTime;
gatedClock 80:e3e1a2161435 642 dCookTimeRemainingSec = giLCD.dRemainingTime;
gatedClock 80:e3e1a2161435 643 fLCDcelsius = giLCD.fCelsius;
gatedClock 80:e3e1a2161435 644
gatedClock 80:e3e1a2161435 645
gatedClock 67:1d9c85a4c3c1 646
gatedClock 67:1d9c85a4c3c1 647
gatedClock 67:1d9c85a4c3c1 648 // clear display only when
gatedClock 67:1d9c85a4c3c1 649 // necessary, in order to avoid
gatedClock 67:1d9c85a4c3c1 650 // 'blinkieness'.
gatedClock 67:1d9c85a4c3c1 651 if (dLCDtotalCookTimeSec != dLCDtotalCookTimeSecLast ||
gatedClock 67:1d9c85a4c3c1 652 dCookTimeRemainingSec != dCookTimeRemainingSecLast ||
gatedClock 67:1d9c85a4c3c1 653 fLCDcelsius != fLCDcelsiusLast)
gatedClock 67:1d9c85a4c3c1 654 lcd.cls();
gatedClock 42:266d5bbbfd19 655
gatedClock 44:d16e813e61ef 656 LCD1; // line 1.
gatedClock 67:1d9c85a4c3c1 657 lcd.printf(" total cook time: %d",dLCDtotalCookTimeSec);
gatedClock 42:266d5bbbfd19 658
gatedClock 44:d16e813e61ef 659 LCD2; // line 2.
gatedClock 67:1d9c85a4c3c1 660 lcd.printf(" remaing cook time: %d",dCookTimeRemainingSec);
gatedClock 42:266d5bbbfd19 661
gatedClock 44:d16e813e61ef 662 LCD3; // line 3.
gatedClock 67:1d9c85a4c3c1 663 lcd.printf(" temperature : %5.3f",fLCDcelsius);
gatedClock 67:1d9c85a4c3c1 664
gatedClock 67:1d9c85a4c3c1 665 // pipeline variables.
gatedClock 67:1d9c85a4c3c1 666 dLCDtotalCookTimeSecLast = dLCDtotalCookTimeSec;
gatedClock 67:1d9c85a4c3c1 667 dCookTimeRemainingSecLast = dCookTimeRemainingSec;
gatedClock 67:1d9c85a4c3c1 668 fLCDcelsiusLast = fLCDcelsius;
gatedClock 42:266d5bbbfd19 669
gatedClock 44:d16e813e61ef 670 Thread::wait(THREAD_2_WAITmS); // multitasking.
gatedClock 44:d16e813e61ef 671 } // thread loop.
gatedClock 44:d16e813e61ef 672 } // LCDthread.
gatedClock 42:266d5bbbfd19 673 /*----------------------------------------------//----------------------------*/
gatedClock 71:4a5f256ecf7c 674
gatedClock 88:0b1b812945eb 675 // cook remaining time countdown counter.
gatedClock 88:0b1b812945eb 676 // possibly due to a bug in Ticker
gatedClock 88:0b1b812945eb 677 // http://mbed.org/questions/1563/Mbed-Tickerfunction-hangs-system-from-re/
gatedClock 88:0b1b812945eb 678 // I've been unable to detach/attach this routine in order to reset its phase
gatedClock 88:0b1b812945eb 679 // when I tried it at a 1s resolution. In order to provide the human perception
gatedClock 88:0b1b812945eb 680 // of an immediate restart, I've increased the ticker frequency by the factor
gatedClock 88:0b1b812945eb 681 // 'GRANULARITY' and likewise divide that factor out when this routine
gatedClock 88:0b1b812945eb 682 // promotes the remaining time to the global variable.
gatedClock 88:0b1b812945eb 683
gatedClock 71:4a5f256ecf7c 684 void tickCookRemainingTime(void) // cook-cycle countdown.
gatedClock 71:4a5f256ecf7c 685 {
gatedClock 71:4a5f256ecf7c 686 static int dRemainingTime = 0; // remaining time in seconds.
gatedClock 88:0b1b812945eb 687 int dMaximum; // MAXSECONDS * GRANULARITY.
gatedClock 88:0b1b812945eb 688
gatedClock 88:0b1b812945eb 689 dMaximum = MAXSECONDS * GRANULARITY; // precalculate.
gatedClock 75:c2894d531f42 690
gatedClock 75:c2894d531f42 691 switch (giRemainingTime.cControl) // control processing.
gatedClock 71:4a5f256ecf7c 692 {
gatedClock 88:0b1b812945eb 693
gatedClock 72:b4d0c0aa3c26 694 case RT_PRELOAD : // preload with total time.
gatedClock 71:4a5f256ecf7c 695 {
gatedClock 88:0b1b812945eb 696 // the 'GRANULARITY - 1' factor
gatedClock 88:0b1b812945eb 697 // compensates for integer division
gatedClock 88:0b1b812945eb 698 // dropping the right-of-decimal result,
gatedClock 88:0b1b812945eb 699 // that occuring at the bottom of this
gatedClock 88:0b1b812945eb 700 // routine.
gatedClock 88:0b1b812945eb 701 dRemainingTime = (giRemainingTime.dTotalTime * GRANULARITY) + (GRANULARITY - 1);
gatedClock 71:4a5f256ecf7c 702 break;
gatedClock 71:4a5f256ecf7c 703 }
gatedClock 88:0b1b812945eb 704
gatedClock 72:b4d0c0aa3c26 705 case RT_DECREMENT : // count-down.
gatedClock 71:4a5f256ecf7c 706 {
gatedClock 72:b4d0c0aa3c26 707 dRemainingTime--;
gatedClock 71:4a5f256ecf7c 708 break;
gatedClock 71:4a5f256ecf7c 709 }
gatedClock 71:4a5f256ecf7c 710
gatedClock 72:b4d0c0aa3c26 711 case RT_PAUSE : // suspend countdown.
gatedClock 69:55b836e8ced7 712 {
gatedClock 72:b4d0c0aa3c26 713 dRemainingTime = dRemainingTime;
gatedClock 71:4a5f256ecf7c 714 break;
gatedClock 71:4a5f256ecf7c 715 }
gatedClock 71:4a5f256ecf7c 716
gatedClock 72:b4d0c0aa3c26 717 case RT_CLEAR : // clear countdown.
gatedClock 71:4a5f256ecf7c 718 {
gatedClock 76:74c454c9d75b 719 dRemainingTime = 0;
gatedClock 76:74c454c9d75b 720 led3 = 1;
gatedClock 71:4a5f256ecf7c 721 break;
gatedClock 71:4a5f256ecf7c 722 }
gatedClock 69:55b836e8ced7 723
gatedClock 72:b4d0c0aa3c26 724 default : // saturate, just in case.
gatedClock 72:b4d0c0aa3c26 725 {
gatedClock 72:b4d0c0aa3c26 726 }
gatedClock 75:c2894d531f42 727 } // control processing.
gatedClock 71:4a5f256ecf7c 728
gatedClock 88:0b1b812945eb 729 // saturate value.
gatedClock 88:0b1b812945eb 730 if (dRemainingTime > dMaximum) dRemainingTime = dMaximum;
gatedClock 88:0b1b812945eb 731 if (dRemainingTime < 0) dRemainingTime = 0;
gatedClock 88:0b1b812945eb 732
gatedClock 75:c2894d531f42 733 // promote to global scope.
gatedClock 86:388c2b4b7cf5 734 giRemainingTime.dRemainingTime = dRemainingTime/GRANULARITY;
gatedClock 70:7c0743c28b11 735
gatedClock 70:7c0743c28b11 736 } // cookRemainingTime.
gatedClock 69:55b836e8ced7 737 /*----------------------------------------------//----------------------------*/
gatedClock 69:55b836e8ced7 738
gatedClock 69:55b836e8ced7 739
gatedClock 69:55b836e8ced7 740
gatedClock 69:55b836e8ced7 741
gatedClock 69:55b836e8ced7 742
gatedClock 69:55b836e8ced7 743
gatedClock 69:55b836e8ced7 744
gatedClock 69:55b836e8ced7 745
gatedClock 69:55b836e8ced7 746
gatedClock 69:55b836e8ced7 747
gatedClock 69:55b836e8ced7 748