1hourSlave - one hour slave program this waits for entry from …

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manu jose / Mbed 2 deprecated 1hourSlave

one hour slave program this waits for entry from master and initialize queue in the begninng and execute the data.

problemb1.h@0:6be670be8b35, 2010-12-04 (annotated)

Committer:: manujose
Date:: Sat Dec 04 06:09:47 2010 +0000
Revision:: 0:6be670be8b35

Who changed what in which revision?

User	Revision	Line number	New contents of line
manujose	0:6be670be8b35	1	#ifndef PROBLEMB1_H_
manujose	0:6be670be8b35	2	#define PROBLEMB1_H_
manujose	0:6be670be8b35	3	#include "mbed.h"
manujose	0:6be670be8b35	4	#include "decl.h"
manujose	0:6be670be8b35	5	#include "pqueue.h"
manujose	0:6be670be8b35	6
manujose	0:6be670be8b35	7	pQueue globalQ;
manujose	0:6be670be8b35	8	unsigned int gTime =0;
manujose	0:6be670be8b35	9	timeval pps;
manujose	0:6be670be8b35	10
manujose	0:6be670be8b35	11	union {
manujose	0:6be670be8b35	12	unsigned int t;
manujose	0:6be670be8b35	13	char BYTE[4];
manujose	0:6be670be8b35	14	}t1,t2,t3,t4;
manujose	0:6be670be8b35	15	signed int offset;
manujose	0:6be670be8b35	16
manujose	0:6be670be8b35	17	void initialSetup(void) {
manujose	0:6be670be8b35	18	LPC_SC->PCLKSEL0 \|= 0x04; //set the frequency REF: USER MANULA TAB 40,41,42 ?? check
manujose	0:6be670be8b35	19
manujose	0:6be670be8b35	20	LPC_SC-> PCONP \|= 1 << 1; // Power on Timer0
manujose	0:6be670be8b35	21
manujose	0:6be670be8b35	22	LPC_TIM0->TCR = 0x2; // Reset and set to timer mode
manujose	0:6be670be8b35	23	LPC_TIM0->CTCR = 0x0;
manujose	0:6be670be8b35	24	LPC_TIM0->PR = 0; // No prescale
manujose	0:6be670be8b35	25	//LPC_TIM0->MR0 = 0xF0537000 ; // Match count for 100mS
manujose	0:6be670be8b35	26	LPC_TIM0->MR0 = RESET_42;
manujose	0:6be670be8b35	27	LPC_TIM0->MCR = 3; // Interrupt, Stop, and Reset on match
manujose	0:6be670be8b35	28
manujose	0:6be670be8b35	29
manujose	0:6be670be8b35	30	LPC_TIM0->TCR = 1; // Enable Timer0
manujose	0:6be670be8b35	31	// Enable the ISR vector
manujose	0:6be670be8b35	32	NVIC_SetVector (TIMER0_IRQn, (uint32_t)&Timer0_IRQHandler);
manujose	0:6be670be8b35	33	NVIC_EnableIRQ(TIMER0_IRQn);
manujose	0:6be670be8b35	34
manujose	0:6be670be8b35	35	// LPC_TIM0->MCR \|= 11; //for mr1 and mr0
manujose	0:6be670be8b35	36	//queue set up
manujose	0:6be670be8b35	37	globalQ.numEle = 0;
manujose	0:6be670be8b35	38	globalQ.head = NULL;
manujose	0:6be670be8b35	39	}
manujose	0:6be670be8b35	40	void Timer0_IRQHandler(void) {
manujose	0:6be670be8b35	41	// LPC_TIM0->IR=0xff;
manujose	0:6be670be8b35	42	//LPC_TIM0->MR0 = 0x5370;
manujose	0:6be670be8b35	43	if (LPC_TIM0->IR&1) {
manujose	0:6be670be8b35	44	gTime++;
manujose	0:6be670be8b35	45	// pc.printf("gtime++ %X",LPC_TIM0->IR);
manujose	0:6be670be8b35	46	}
manujose	0:6be670be8b35	47
manujose	0:6be670be8b35	48	if((LPC_TIM0->IR >> 1)&1 ){ //RUN THE RUNAT TIME HIT
manujose	0:6be670be8b35	49	qEle *ele = pop(&globalQ);
manujose	0:6be670be8b35	50	// pc.putc('1');
manujose	0:6be670be8b35	51	// pc.printf("ACtual time = %d and %d\n",ele->t.tv_sec, ele->t.tv_usec);
manujose	0:6be670be8b35	52	ele->foo();
manujose	0:6be670be8b35	53	free(ele);
manujose	0:6be670be8b35	54	}
manujose	0:6be670be8b35	55	//check if more ele for schedule this time ?
manujose	0:6be670be8b35	56	if ((globalQ.numEle >0) && (globalQ.head->sched ==0)&& (globalQ.head->t.tv_sec <((gTime+1)*42))) {
manujose	0:6be670be8b35	57	globalQ.head->sched = 1;
manujose	0:6be670be8b35	58
manujose	0:6be670be8b35	59	LPC_TIM0->MR1 = (globalQ.head->t.tv_sec-(gTime42))CLK_FREQUENCY +globalQ.head->t.tv_usec*CLK_FRQ;
manujose	0:6be670be8b35	60	LPC_TIM0->MCR \|= 8;
manujose	0:6be670be8b35	61
manujose	0:6be670be8b35	62	} else if (globalQ.head->sched == 0) //NO events in this gTime update yet .
manujose	0:6be670be8b35	63	{ //turn off the match regiester 1 interrupts.
manujose	0:6be670be8b35	64	LPC_TIM0->MCR &= 3;
manujose	0:6be670be8b35	65	}
manujose	0:6be670be8b35	66
manujose	0:6be670be8b35	67	// timeval t;
manujose	0:6be670be8b35	68	// getTime(&t);
manujose	0:6be670be8b35	69	LPC_TIM0->IR = 0xff;
manujose	0:6be670be8b35	70	// pc.printf("INCREMENTING COUNTER or event %d \n",t.tv_sec);
manujose	0:6be670be8b35	71	}
manujose	0:6be670be8b35	72
manujose	0:6be670be8b35	73
manujose	0:6be670be8b35	74	void getTime(timeval *tv) {
manujose	0:6be670be8b35	75	unsigned int nMSec = (LPC_TIM0->TC)/CLK_FRQ; //gives num of micro sec
manujose	0:6be670be8b35	76	// unsigned int nMSec = (LPC_TIM0->TC + offset)/72;
manujose	0:6be670be8b35	77	unsigned int nSec = nMSec/1000000;
manujose	0:6be670be8b35	78	tv->tv_sec = gTime*42 + nSec;
manujose	0:6be670be8b35	79	// tv->tv_usec = (LPC_TIM0->TC)1000 + (float)(LPC_TIM0->PC)/( CLK_FREQUENCY 1000000);
manujose	0:6be670be8b35	80	tv->tv_usec = nMSec-(nSec*1000000);
manujose	0:6be670be8b35	81	}
manujose	0:6be670be8b35	82
manujose	0:6be670be8b35	83	int curTimeEqualGR(timeval *tv) {
manujose	0:6be670be8b35	84	timeval curT;
manujose	0:6be670be8b35	85	getTime(&curT);
manujose	0:6be670be8b35	86	if (curT.tv_sec == tv->tv_sec) {
manujose	0:6be670be8b35	87	if (curT.tv_usec == tv->tv_usec)
manujose	0:6be670be8b35	88	return 1;
manujose	0:6be670be8b35	89	else
manujose	0:6be670be8b35	90	pc.printf("WROING MICRO CALIBERATION\n");
manujose	0:6be670be8b35	91	return 1;
manujose	0:6be670be8b35	92	} else if (curT.tv_sec > tv->tv_sec) {
manujose	0:6be670be8b35	93	pc.printf("WRONG cur = %d and req = %d \n",curT.tv_sec, tv->tv_sec);
manujose	0:6be670be8b35	94	return 1;
manujose	0:6be670be8b35	95	}
manujose	0:6be670be8b35	96	return 0;
manujose	0:6be670be8b35	97	}
manujose	0:6be670be8b35	98
manujose	0:6be670be8b35	99	int runAtTime(void (schedFunc)(void), timeval tv) {
manujose	0:6be670be8b35	100	int ret =0;
manujose	0:6be670be8b35	101	ret = enqueue(&globalQ, *tv, schedFunc);
manujose	0:6be670be8b35	102	if (tv->tv_sec < (gTime+1)*42) {
manujose	0:6be670be8b35	103
manujose	0:6be670be8b35	104	if (globalQ.head->sched == 0) {
manujose	0:6be670be8b35	105
manujose	0:6be670be8b35	106	LPC_TIM0->MR1 = ((globalQ.head->t.tv_sec%42 )CLK_FREQUENCY+(globalQ.head->t.tv_usecCLK_FRQ));
manujose	0:6be670be8b35	107	globalQ.head->sched = 1;
manujose	0:6be670be8b35	108	LPC_TIM0->MCR \|= 8;
manujose	0:6be670be8b35	109	}
manujose	0:6be670be8b35	110	}
manujose	0:6be670be8b35	111	return ret;
manujose	0:6be670be8b35	112	}
manujose	0:6be670be8b35	113	void trigEX(timeval *tv) {
manujose	0:6be670be8b35	114	pc.printf(" Triggered at %d\n",tv->tv_sec);
manujose	0:6be670be8b35	115	}
manujose	0:6be670be8b35	116	void trigger(void) {
manujose	0:6be670be8b35	117	timeval curT;
manujose	0:6be670be8b35	118	getTime(&curT);
manujose	0:6be670be8b35	119	gtrigFunc(&curT);
manujose	0:6be670be8b35	120	}
manujose	0:6be670be8b35	121	void runAtTrigger(void(trigFunc)(timeval tv)) {
manujose	0:6be670be8b35	122	gtrigFunc = trigFunc;
manujose	0:6be670be8b35	123	trig.rise(&trigger);
manujose	0:6be670be8b35	124	// pc.printf("Runing runAtTrigger\n");
manujose	0:6be670be8b35	125	}
manujose	0:6be670be8b35	126
manujose	0:6be670be8b35	127
manujose	0:6be670be8b35	128	void sync_with_master(void) {
manujose	0:6be670be8b35	129	t1.t = LPC_TIM0->TC ;
manujose	0:6be670be8b35	130
manujose	0:6be670be8b35	131	// trigger the master
manujose	0:6be670be8b35	132
manujose	0:6be670be8b35	133	sync.putc('x');
manujose	0:6be670be8b35	134	// pc.printf("\n sync_with_master t1.t=%X\n", t1.t);
manujose	0:6be670be8b35	135	}
manujose	0:6be670be8b35	136
manujose	0:6be670be8b35	137	void calculate_offset(void) {
manujose	0:6be670be8b35	138
manujose	0:6be670be8b35	139	llong t2minust1, t4minust3;
manujose	0:6be670be8b35	140	t4.t = LPC_TIM0->TC;
manujose	0:6be670be8b35	141
manujose	0:6be670be8b35	142	sync.attach(NULL);
manujose	0:6be670be8b35	143
manujose	0:6be670be8b35	144	// serially receive data from master
manujose	0:6be670be8b35	145
manujose	0:6be670be8b35	146	//t2.t = 0;
manujose	0:6be670be8b35	147	//t3.t = 0;
manujose	0:6be670be8b35	148
manujose	0:6be670be8b35	149	t2.BYTE[0] = sync.getc();
manujose	0:6be670be8b35	150	t2.BYTE[1] = sync.getc();
manujose	0:6be670be8b35	151	t2.BYTE[2] = sync.getc();
manujose	0:6be670be8b35	152	t2.BYTE[3] = sync.getc();
manujose	0:6be670be8b35	153
manujose	0:6be670be8b35	154	t3.BYTE[0] = sync.getc();
manujose	0:6be670be8b35	155	t3.BYTE[1] = sync.getc();
manujose	0:6be670be8b35	156	t3.BYTE[2] = sync.getc();
manujose	0:6be670be8b35	157	t3.BYTE[3] = sync.getc();
manujose	0:6be670be8b35	158
manujose	0:6be670be8b35	159
manujose	0:6be670be8b35	160
manujose	0:6be670be8b35	161	//exhaust buffer
manujose	0:6be670be8b35	162
manujose	0:6be670be8b35	163	sync.attach(&calculate_offset);
manujose	0:6be670be8b35	164
manujose	0:6be670be8b35	165	//pc.printf(" \n t1= %X, t2 = %X, t3 = %X, t4 = %X",t1.t,t2.t,t3.t,t4.t);
manujose	0:6be670be8b35	166
manujose	0:6be670be8b35	167	// account for the case where the TC has overflowed.
manujose	0:6be670be8b35	168
manujose	0:6be670be8b35	169	if ( t1.t > t4.t )
manujose	0:6be670be8b35	170	{
manujose	0:6be670be8b35	171	t4.t = RESET_42 + t4.t;
manujose	0:6be670be8b35	172	}
manujose	0:6be670be8b35	173	if (t2.t > t3.t)
manujose	0:6be670be8b35	174	{
manujose	0:6be670be8b35	175	t3.t = RESET_42 + t3.t;
manujose	0:6be670be8b35	176	}
manujose	0:6be670be8b35	177
manujose	0:6be670be8b35	178	t2minust1 = (llong)t2.t-t1.t;
manujose	0:6be670be8b35	179	t4minust3 = (llong)t4.t-t3.t;
manujose	0:6be670be8b35	180
manujose	0:6be670be8b35	181	// pc.printf(" \n t2-t1 = %X, t4-t3 = %X",t2minust1, t4minust3);
manujose	0:6be670be8b35	182
manujose	0:6be670be8b35	183	offset =(int) ((t2minust1-t4minust3)/2);
manujose	0:6be670be8b35	184
manujose	0:6be670be8b35	185	LPC_TIM0->TC = (LPC_TIM0->TC + offset);
manujose	0:6be670be8b35	186	if(LPC_TIM0->TC > RESET_42)
manujose	0:6be670be8b35	187	LPC_TIM0->TC = LPC_TIM0->TC - RESET_42;
manujose	0:6be670be8b35	188
manujose	0:6be670be8b35	189	offset = 0;
manujose	0:6be670be8b35	190	while(sync.readable())
manujose	0:6be670be8b35	191	sync.getc();
manujose	0:6be670be8b35	192
manujose	0:6be670be8b35	193	//pc.printf(" offset = %d\n",offset);
manujose	0:6be670be8b35	194	}
manujose	0:6be670be8b35	195
manujose	0:6be670be8b35	196
manujose	0:6be670be8b35	197	void pinToggle(void)
manujose	0:6be670be8b35	198	{
manujose	0:6be670be8b35	199	toggle = !toggle;
manujose	0:6be670be8b35	200	// timeval t;
manujose	0:6be670be8b35	201	// getTime(&t);
manujose	0:6be670be8b35	202	// pc.printf(" THE TOGGLE TIME = %d and %d \n",t.tv_sec, t.tv_usec);
manujose	0:6be670be8b35	203	// myLED = !myLED;
manujose	0:6be670be8b35	204	// pc.printf("\nToggle");
manujose	0:6be670be8b35	205	// pps.tv_sec++;
manujose	0:6be670be8b35	206	//runAtTime(&pinToggle,&pps);
manujose	0:6be670be8b35	207
manujose	0:6be670be8b35	208	}
manujose	0:6be670be8b35	209
manujose	0:6be670be8b35	210
manujose	0:6be670be8b35	211
manujose	0:6be670be8b35	212	#endif

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	04 Dec 2010
Imports:	4
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

problemb1.h@0:6be670be8b35, 2010-12-04 (annotated)

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