Xinda Lin / Mbed 2 deprecated runAtTime

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main.cpp@0:7d55df32c988, 2010-12-04 (annotated)

Committer:
linxinda
Date:
Sat Dec 04 07:12:45 2010 +0000
Revision:
0:7d55df32c988
HW3B Part1 runAtTrigger

Who changed what in which revision?

UserRevisionLine numberNew contents of line
linxinda 0:7d55df32c988 1 #include "mbed.h"
linxinda 0:7d55df32c988 2 #include "queue.h"
linxinda 0:7d55df32c988 3
linxinda 0:7d55df32c988 4 DigitalOut myled1(LED1);
linxinda 0:7d55df32c988 5 DigitalOut myled2(LED2);
linxinda 0:7d55df32c988 6 struct timeval
linxinda 0:7d55df32c988 7 {
linxinda 0:7d55df32c988 8 unsigned long long int tv_sec; /* Seconds. */
linxinda 0:7d55df32c988 9 unsigned long long int tv_usec; /* Microseconds. */
linxinda 0:7d55df32c988 10 };
linxinda 0:7d55df32c988 11 void runAtTime (void (*schedFunc)(), struct timeval *tv);
linxinda 0:7d55df32c988 12 void schedFunc(void);
linxinda 0:7d55df32c988 13 void SetupTimer1(struct timeval *tv);
linxinda 0:7d55df32c988 14 void Timer1_IRQHandler(void);
linxinda 0:7d55df32c988 15 void setTimeval(struct timeval *tv);
linxinda 0:7d55df32c988 16 timeval currentTime;
linxinda 0:7d55df32c988 17
linxinda 0:7d55df32c988 18 PriorityQueue myQueue;
linxinda 0:7d55df32c988 19 _task runTime;
linxinda 0:7d55df32c988 20 unsigned long long int triggerTime;
linxinda 0:7d55df32c988 21
linxinda 0:7d55df32c988 22
linxinda 0:7d55df32c988 23 int main() {
linxinda 0:7d55df32c988 24 _task t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
linxinda 0:7d55df32c988 25 t1.usec=1000;
linxinda 0:7d55df32c988 26 triggerTime=t1.usec;
linxinda 0:7d55df32c988 27 t2.usec=2000;
linxinda 0:7d55df32c988 28 t3.usec=8000;
linxinda 0:7d55df32c988 29 t4.usec=4000;
linxinda 0:7d55df32c988 30 t5.usec=5000;
linxinda 0:7d55df32c988 31 t6.usec=3000;
linxinda 0:7d55df32c988 32 t7.usec=9000;
linxinda 0:7d55df32c988 33 t8.usec=5000;
linxinda 0:7d55df32c988 34 t9.usec=10000;
linxinda 0:7d55df32c988 35 //myQueue.Insert(&t1);
linxinda 0:7d55df32c988 36 myQueue.Insert(&t2);
linxinda 0:7d55df32c988 37 myQueue.Insert(&t3);
linxinda 0:7d55df32c988 38 myQueue.Insert(&t4);
linxinda 0:7d55df32c988 39 myQueue.Insert(&t5);
linxinda 0:7d55df32c988 40 myQueue.Insert(&t6);
linxinda 0:7d55df32c988 41 myQueue.Insert(&t7);
linxinda 0:7d55df32c988 42 myQueue.Insert(&t8);
linxinda 0:7d55df32c988 43 myQueue.Insert(&t9);
linxinda 0:7d55df32c988 44 setTimeval(&currentTime);
linxinda 0:7d55df32c988 45 SetupTimer1(&currentTime);
linxinda 0:7d55df32c988 46 //SetupTimer1();
linxinda 0:7d55df32c988 47 while(1){
linxinda 0:7d55df32c988 48 pc.printf("%llu\r\n",LPC_TIM1->TC);
linxinda 0:7d55df32c988 49 pc.printf("%llu\r\n",LPC_TIM1->IR);
linxinda 0:7d55df32c988 50 }
linxinda 0:7d55df32c988 51 }
linxinda 0:7d55df32c988 52
linxinda 0:7d55df32c988 53 void SetupTimer1(struct timeval *tv){
linxinda 0:7d55df32c988 54 LPC_SC->PCONP |= 1 << 2; // Power on Timer`
linxinda 0:7d55df32c988 55 LPC_SC->PCLKSEL0 |= 1 << 4;
linxinda 0:7d55df32c988 56 LPC_TIM1->TCR = 0x2; // Reset and set to timer mode
linxinda 0:7d55df32c988 57 LPC_TIM1->CTCR = 0x0;
linxinda 0:7d55df32c988 58 LPC_TIM1->PR = 0; // No prescale
linxinda 0:7d55df32c988 59 //unsigned long long int Tc=(unsigned long long int )tv->tv_sec*96000000;
linxinda 0:7d55df32c988 60 LPC_TIM1->MR0=tv->tv_usec*96000;
linxinda 0:7d55df32c988 61 //LPC_TIM1->MR0=0x20000000;
linxinda 0:7d55df32c988 62 LPC_TIM1->MR1=0xFFFFFFFF;
linxinda 0:7d55df32c988 63 LPC_TIM1->MCR = 0x00000001; // Interrupt and Reset on Match
linxinda 0:7d55df32c988 64 LPC_TIM1->TCR = 1; // Enable Timer
linxinda 0:7d55df32c988 65 //enable interrupt
linxinda 0:7d55df32c988 66 NVIC_SetVector (TIMER1_IRQn, (uint32_t)&Timer1_IRQHandler);
linxinda 0:7d55df32c988 67 NVIC_EnableIRQ (TIMER1_IRQn);
linxinda 0:7d55df32c988 68 }
linxinda 0:7d55df32c988 69
linxinda 0:7d55df32c988 70 /*void TriggerHandler(void){
linxinda 0:7d55df32c988 71 runAtTime (schedFunc,&currentTime);
linxinda 0:7d55df32c988 72 LPC_TIM1->IR=63;
linxinda 0:7d55df32c988 73 }*/
linxinda 0:7d55df32c988 74
linxinda 0:7d55df32c988 75 void Timer1_IRQHandler(void)
linxinda 0:7d55df32c988 76 {
linxinda 0:7d55df32c988 77 if((LPC_TIM1->IR|0xFFFFFFFE)==0xFFFFFFFF){//handle timer overflow
linxinda 0:7d55df32c988 78 //myled1=!myled1;
linxinda 0:7d55df32c988 79 runAtTime (schedFunc,&currentTime);
linxinda 0:7d55df32c988 80 LPC_TIM1->IR = 1<<0;
linxinda 0:7d55df32c988 81 }
linxinda 0:7d55df32c988 82
linxinda 0:7d55df32c988 83 if((LPC_TIM1->IR|0xFFFFFFFD)==0xFFFFFFFF){//trigger function at specific time
linxinda 0:7d55df32c988 84 myled2=!myled2;
linxinda 0:7d55df32c988 85
linxinda 0:7d55df32c988 86 LPC_TIM1->IR = 1<<1;
linxinda 0:7d55df32c988 87 }
linxinda 0:7d55df32c988 88
linxinda 0:7d55df32c988 89 }
linxinda 0:7d55df32c988 90
linxinda 0:7d55df32c988 91 void schedFunc(void){
linxinda 0:7d55df32c988 92
linxinda 0:7d55df32c988 93 runTime=*myQueue.Delete();
linxinda 0:7d55df32c988 94 triggerTime=runTime.usec;
linxinda 0:7d55df32c988 95 setTimeval(&currentTime);
linxinda 0:7d55df32c988 96 myled1=!myled1;
linxinda 0:7d55df32c988 97 }
linxinda 0:7d55df32c988 98 void runAtTime(void (*scheFunc)(),struct timeval *tv){
linxinda 0:7d55df32c988 99 (*scheFunc)();
linxinda 0:7d55df32c988 100 LPC_TIM1->MR0=tv->tv_usec*96000;
linxinda 0:7d55df32c988 101 }
linxinda 0:7d55df32c988 102 void setTimeval(struct timeval *tv){
linxinda 0:7d55df32c988 103
linxinda 0:7d55df32c988 104 tv->tv_usec=triggerTime;
linxinda 0:7d55df32c988 105 }
linxinda 0:7d55df32c988 106