Hw3B_Final_Syn_Master -

Users » sun831011 » Code » Hw3B_Final_Syn_Master

yuwen sun / Mbed 2 deprecated Hw3B_Final_Syn_Master

main.cpp@0:53009704d289, 2010-12-03 (annotated)

Committer:: sun831011
Date:: Fri Dec 03 22:20:14 2010 +0000
Revision:: 0:53009704d289

Who changed what in which revision?

User	Revision	Line number	New contents of line
sun831011	0:53009704d289	1	#include "mbed.h"
sun831011	0:53009704d289	2
sun831011	0:53009704d289	3	Serial pc(USBTX, USBRX); // tx, rx
sun831011	0:53009704d289	4	Serial ss(p9, p10); //tx rx
sun831011	0:53009704d289	5	Serial ss_sne(p13, p14); //tx rx
sun831011	0:53009704d289	6
sun831011	0:53009704d289	7	DigitalOut myled1(LED1);
sun831011	0:53009704d289	8	DigitalOut myled2(LED2);
sun831011	0:53009704d289	9
sun831011	0:53009704d289	10	DigitalOut masterOut(p23);
sun831011	0:53009704d289	11	InterruptIn masterIn(p22);
sun831011	0:53009704d289	12	InterruptIn slaveIn(p21);
sun831011	0:53009704d289	13
sun831011	0:53009704d289	14	unsigned long counter = 0;
sun831011	0:53009704d289	15	int divider = 1;
sun831011	0:53009704d289	16	int pro_flag = 0;
sun831011	0:53009704d289	17	int task_flag = 0;
sun831011	0:53009704d289	18	unsigned long long t1, t2, t3, t4;
sun831011	0:53009704d289	19	typedef struct timeval {
sun831011	0:53009704d289	20	unsigned long tv_sec;
sun831011	0:53009704d289	21	unsigned long tv_usec;
sun831011	0:53009704d289	22	} timeval;
sun831011	0:53009704d289	23
sun831011	0:53009704d289	24	void Timer0_init(void);
sun831011	0:53009704d289	25	void Timer0_IRQHandler(void);
sun831011	0:53009704d289	26	void Sync_protocol(void);
sun831011	0:53009704d289	27	void getTime(struct timeval *tv);
sun831011	0:53009704d289	28	int runAtTime (void (*fptr)(void), struct timeval tv);
sun831011	0:53009704d289	29	void toggle(void);
sun831011	0:53009704d289	30	void runAtTrigger( );
sun831011	0:53009704d289	31	void reportToggle(struct timeval *tv);
sun831011	0:53009704d289	32	long long sne(void);
sun831011	0:53009704d289	33
sun831011	0:53009704d289	34	int main( )
sun831011	0:53009704d289	35	{
sun831011	0:53009704d289	36	struct timeval t_run;
sun831011	0:53009704d289	37	long long t_run_m;
sun831011	0:53009704d289	38	t_run.tv_sec = 1000;
sun831011	0:53009704d289	39	t_run.tv_usec = 0;
sun831011	0:53009704d289	40	wait(1);
sun831011	0:53009704d289	41	// masterIn.rise(&runAtTrigger);
sun831011	0:53009704d289	42	// masterIn.fall(&runAtTrigger);
sun831011	0:53009704d289	43	// slaveIn.rise(&runAtTrigger);
sun831011	0:53009704d289	44	// slaveIn.fall(&runAtTrigger);
sun831011	0:53009704d289	45	Timer0_init( );
sun831011	0:53009704d289	46	while (1)
sun831011	0:53009704d289	47	{ /*
sun831011	0:53009704d289	48	if (pc.readable( )){
sun831011	0:53009704d289	49	t_run_m = sne( );
sun831011	0:53009704d289	50	t_run.tv_sec = t_run_m/1000000;
sun831011	0:53009704d289	51	t_run.tv_usec = t_run_m%1000000;
sun831011	0:53009704d289	52	pc.printf("%lu\n",t_run.tv_sec);
sun831011	0:53009704d289	53	pc.printf("%lu\n",t_run.tv_usec);
sun831011	0:53009704d289	54	} */
sun831011	0:53009704d289	55	// if (!task_flag)
sun831011	0:53009704d289	56	// task_flag = runAtTime (&toggle, t_run);
sun831011	0:53009704d289	57	if (pro_flag == 1){
sun831011	0:53009704d289	58	Sync_protocol( );
sun831011	0:53009704d289	59	pro_flag = 0;
sun831011	0:53009704d289	60	}
sun831011	0:53009704d289	61	}
sun831011	0:53009704d289	62	}
sun831011	0:53009704d289	63
sun831011	0:53009704d289	64	void Timer0_init(void)
sun831011	0:53009704d289	65	{
sun831011	0:53009704d289	66	LPC_SC->PCLKSEL0 = 0x0066;
sun831011	0:53009704d289	67	LPC_SC->PCONP \|= 1<<1; // Timer0 Power On
sun831011	0:53009704d289	68	LPC_TIM0->MR0 = 2880000000; // Match count for 30S
sun831011	0:53009704d289	69	LPC_TIM0->MCR = 3; // Interrupt and Reset on Match
sun831011	0:53009704d289	70	LPC_TIM0->TCR = 1; // Enable Timer0
sun831011	0:53009704d289	71	NVIC_SetVector (TIMER0_IRQn, (uint32_t)&Timer0_IRQHandler);
sun831011	0:53009704d289	72	NVIC_EnableIRQ(TIMER0_IRQn);
sun831011	0:53009704d289	73	}
sun831011	0:53009704d289	74
sun831011	0:53009704d289	75	void Timer0_IRQHandler(void)
sun831011	0:53009704d289	76	{
sun831011	0:53009704d289	77	LPC_TIM0->IR = 1;
sun831011	0:53009704d289	78	LPC_TIM0->MR0 = 2880000000; // Match count for 30S
sun831011	0:53009704d289	79	LPC_TIM0->TCR = 1; // Enable Timer0
sun831011	0:53009704d289	80	counter = counter + 1;
sun831011	0:53009704d289	81	if ( counter % divider ==0 )
sun831011	0:53009704d289	82	pro_flag = 1;
sun831011	0:53009704d289	83	}
sun831011	0:53009704d289	84
sun831011	0:53009704d289	85	void Sync_protocol(void)
sun831011	0:53009704d289	86	{
sun831011	0:53009704d289	87	char x;
sun831011	0:53009704d289	88	t1 = counter * 4294967296 + LPC_TIM0->TC;
sun831011	0:53009704d289	89	ss.putc('S');
sun831011	0:53009704d289	90	pc.printf("t1 = %llu\n", t1);
sun831011	0:53009704d289	91	ss.printf("%llu", t1);
sun831011	0:53009704d289	92	ss.putc('E');
sun831011	0:53009704d289	93	while (1){
sun831011	0:53009704d289	94	if (ss.readable( )){
sun831011	0:53009704d289	95	x = ss.getc( );
sun831011	0:53009704d289	96	t4 = counter * 4294967296 + LPC_TIM0->TC;
sun831011	0:53009704d289	97	ss.printf("%llu", t4);
sun831011	0:53009704d289	98	ss.putc('E');
sun831011	0:53009704d289	99	pc.printf("%c\n", x);
sun831011	0:53009704d289	100	pc.printf("t4 = %llu\n", t4);
sun831011	0:53009704d289	101	break;
sun831011	0:53009704d289	102	}
sun831011	0:53009704d289	103	}
sun831011	0:53009704d289	104	}
sun831011	0:53009704d289	105
sun831011	0:53009704d289	106	void getTime(struct timeval *tv){
sun831011	0:53009704d289	107	unsigned long ns, hs;
sun831011	0:53009704d289	108	ns = LPC_TIM0->TC;
sun831011	0:53009704d289	109	hs = counter;
sun831011	0:53009704d289	110	tv->tv_sec = hs*30 + ns/100000000;
sun831011	0:53009704d289	111	tv->tv_usec = (ns%100000000)/100;
sun831011	0:53009704d289	112	}
sun831011	0:53009704d289	113	/*
sun831011	0:53009704d289	114	int runAtTime (void (*fptr)(void), struct timeval tv){
sun831011	0:53009704d289	115	struct timeval current_t;
sun831011	0:53009704d289	116	getTime(&current_t);
sun831011	0:53009704d289	117	if (tv.tv_sec <= current_t.tv_sec && tv.tv_usec <= current_t.tv_usec){
sun831011	0:53009704d289	118	(*fptr) ( );
sun831011	0:53009704d289	119	return 1;
sun831011	0:53009704d289	120	}
sun831011	0:53009704d289	121	else
sun831011	0:53009704d289	122	return 0;
sun831011	0:53009704d289	123	}
sun831011	0:53009704d289	124
sun831011	0:53009704d289	125	void toggle(void){
sun831011	0:53009704d289	126	masterOut = !masterOut;
sun831011	0:53009704d289	127	}
sun831011	0:53009704d289	128
sun831011	0:53009704d289	129	void runAtTrigger(void){
sun831011	0:53009704d289	130	struct timeval response_t;
sun831011	0:53009704d289	131	reportToggle(&response_t);
sun831011	0:53009704d289	132	}
sun831011	0:53009704d289	133
sun831011	0:53009704d289	134	void reportToggle(struct timeval *tv)
sun831011	0:53009704d289	135	{
sun831011	0:53009704d289	136	getTime(tv);
sun831011	0:53009704d289	137	pc.printf("%u\n", tv->tv_sec);
sun831011	0:53009704d289	138	pc.printf("%u\n", tv->tv_usec);
sun831011	0:53009704d289	139	myled2 = !myled2;
sun831011	0:53009704d289	140	}
sun831011	0:53009704d289	141
sun831011	0:53009704d289	142	long long sne( ){
sun831011	0:53009704d289	143	char temp;
sun831011	0:53009704d289	144	char incode[100];
sun831011	0:53009704d289	145	int i=0;
sun831011	0:53009704d289	146	int j=0;
sun831011	0:53009704d289	147	long long sum = 0;
sun831011	0:53009704d289	148	while ((temp = pc.getc())!= 'E') { //getchar
sun831011	0:53009704d289	149	incode[i] = temp; //put the original char in incode
sun831011	0:53009704d289	150	i++;
sun831011	0:53009704d289	151	}
sun831011	0:53009704d289	152	for (j=1;j<i;j++){
sun831011	0:53009704d289	153	sum = (incode[j]-'0')+sum*10;
sun831011	0:53009704d289	154	}
sun831011	0:53009704d289	155	if (incode[0]=='S'){
sun831011	0:53009704d289	156	ss_sne.printf("%llu", sum);
sun831011	0:53009704d289	157	ss_sne.putc('E');
sun831011	0:53009704d289	158	return sum;
sun831011	0:53009704d289	159	}
sun831011	0:53009704d289	160	else
sun831011	0:53009704d289	161	return 0;
sun831011	0:53009704d289	162	}
sun831011	0:53009704d289	163	*/

Repository toolbox

Export to desktop IDE

Build repository

Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	03 Dec 2010
Imports:	3
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

main.cpp@0:53009704d289, 2010-12-03 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning