FYPFinalProgram -

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Daryl Tan Wei Guang / Mbed 2 deprecated FYPFinalProgram

Dependencies: keypad SDHCFileSystem TextLCD mbed FPointer wave_player

main.cpp@0:57ece500234e, 2012-02-20 (annotated)

Committer:: daryl2110
Date:: Mon Feb 20 07:32:56 2012 +0000
Revision:: 0:57ece500234e

Who changed what in which revision?

User	Revision	Line number	New contents of line
daryl2110	0:57ece500234e	1	/*
daryl2110	0:57ece500234e	2	Final Year Project for Ngee Ann Polytechnic Electrical Engineering Year 3
daryl2110	0:57ece500234e	3	Project Title: Bus Assistance for the Visually Impaired
daryl2110	0:57ece500234e	4	*/
daryl2110	0:57ece500234e	5	#include "mbed.h"
daryl2110	0:57ece500234e	6	#include "scmRTOS.h"
daryl2110	0:57ece500234e	7	#include "wave_player.h"
daryl2110	0:57ece500234e	8	#include "SDHCFileSystem.h"
daryl2110	0:57ece500234e	9	#include "keypad.h"
daryl2110	0:57ece500234e	10	#include "TextLCD.h"
daryl2110	0:57ece500234e	11
daryl2110	0:57ece500234e	12	Serial xbee(p9, p10);
daryl2110	0:57ece500234e	13	DigitalOut rst1(p11);
daryl2110	0:57ece500234e	14	SDFileSystem sd(p5, p6, p7, p8, "sd");
daryl2110	0:57ece500234e	15	AnalogOut AudioOut(p18);
daryl2110	0:57ece500234e	16	wave_player waver(&AudioOut);
daryl2110	0:57ece500234e	17	//Keypad keypad( p24, p23, p22, p21, p28, p27, p26, p25);
daryl2110	0:57ece500234e	18	TextLCD lcd(p15, p16, p17, p18, p19, p20);
daryl2110	0:57ece500234e	19	DigitalOut myled(LED1);//Create variable for Led 1 on the mbed
daryl2110	0:57ece500234e	20	DigitalOut myled1(LED2);//Create variable for Led 2 on the mbed
daryl2110	0:57ece500234e	21	//BusOut seven(p27, p26, p25, p24, p23, p22, p21);
daryl2110	0:57ece500234e	22	//BusOut leds(p28, p29, p30);
daryl2110	0:57ece500234e	23
daryl2110	0:57ece500234e	24	DigitalOut led(LED1);
daryl2110	0:57ece500234e	25	DigitalOut led1(LED2);
daryl2110	0:57ece500234e	26
daryl2110	0:57ece500234e	27	//OS Timer/interrupt
daryl2110	0:57ece500234e	28	OS::TEventFlag XBee;
daryl2110	0:57ece500234e	29
daryl2110	0:57ece500234e	30	// process types
daryl2110	0:57ece500234e	31	//typedef OS::process<OS::pr1, 5000> TProc1; //7 Segment LED
daryl2110	0:57ece500234e	32	typedef OS::process<OS::pr0, 4000> TProc2; // XBee Communication
daryl2110	0:57ece500234e	33	//typedef OS::process<OS::pr0, 8000> TProc3; // Playing of Audio
daryl2110	0:57ece500234e	34	//typedef OS::process<OS::pr0 1000> TProc4; // Interrupt of Keypad
daryl2110	0:57ece500234e	35
daryl2110	0:57ece500234e	36	// process objects
daryl2110	0:57ece500234e	37	//TProc1 Proc1;
daryl2110	0:57ece500234e	38	TProc2 Proc2;
daryl2110	0:57ece500234e	39	//TProc3 Proc3;
daryl2110	0:57ece500234e	40	//TProc4 Proc4
daryl2110	0:57ece500234e	41
daryl2110	0:57ece500234e	42	#define MAXBUS 10
daryl2110	0:57ece500234e	43	#define MAXLEN 4
daryl2110	0:57ece500234e	44	#define ENDKEY 14
daryl2110	0:57ece500234e	45	int req;
daryl2110	0:57ece500234e	46	char Bus[MAXBUS][MAXLEN];
daryl2110	0:57ece500234e	47	char NumIx = 0; // Point to current index of Bus number
daryl2110	0:57ece500234e	48	char BusIx = 0; // Point to current bus
daryl2110	0:57ece500234e	49	bool BusFull = false; // Bus number buffer is full
daryl2110	0:57ece500234e	50	char KeyCh;
daryl2110	0:57ece500234e	51
daryl2110	0:57ece500234e	52
daryl2110	0:57ece500234e	53	char Keytable[] = { '1', '2', '3', 'A',
daryl2110	0:57ece500234e	54	'4', '5', '6', 'B',
daryl2110	0:57ece500234e	55	'7', '8', '9', 'C',
daryl2110	0:57ece500234e	56	'*', '0', '#', 'D'
daryl2110	0:57ece500234e	57	};
daryl2110	0:57ece500234e	58
daryl2110	0:57ece500234e	59	uint32_t cbAfterInput(uint32_t key) {
daryl2110	0:57ece500234e	60	KeyCh = Keytable[key];
daryl2110	0:57ece500234e	61
daryl2110	0:57ece500234e	62	if (BusFull) {
daryl2110	0:57ece500234e	63	printf("Bus number is already full\n");
daryl2110	0:57ece500234e	64	return 2;
daryl2110	0:57ece500234e	65	}
daryl2110	0:57ece500234e	66
daryl2110	0:57ece500234e	67
daryl2110	0:57ece500234e	68	if (NumIx < MAXLEN - 1) {
daryl2110	0:57ece500234e	69	if (key != ENDKEY) { // Terminating key
daryl2110	0:57ece500234e	70	lcd.putc(KeyCh);
daryl2110	0:57ece500234e	71	printf("%c", KeyCh);
daryl2110	0:57ece500234e	72
daryl2110	0:57ece500234e	73
daryl2110	0:57ece500234e	74	} else { // Terminating key is entered
daryl2110	0:57ece500234e	75	printf("\nBus(%d,%d)=%c\n", BusIx, NumIx, KeyCh);
daryl2110	0:57ece500234e	76	BusIx++;
daryl2110	0:57ece500234e	77	NumIx = 0;
daryl2110	0:57ece500234e	78	}
daryl2110	0:57ece500234e	79	}
daryl2110	0:57ece500234e	80	return 0;
daryl2110	0:57ece500234e	81	}
daryl2110	0:57ece500234e	82
daryl2110	0:57ece500234e	83	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	84	long long count = 0;
daryl2110	0:57ece500234e	85
daryl2110	0:57ece500234e	86	int main() {
daryl2110	0:57ece500234e	87	printf("\nInitialising ...\n");
daryl2110	0:57ece500234e	88	rst1 = 0; //Set reset pin to 0
daryl2110	0:57ece500234e	89	myled = 0;//Set LED1 to 0
daryl2110	0:57ece500234e	90	myled1 = 0;//Set LED2 to 0
daryl2110	0:57ece500234e	91	wait_ms(1);//Wait at least one millisecond
daryl2110	0:57ece500234e	92	rst1 = 1;//Set reset pin to 1
daryl2110	0:57ece500234e	93	wait_ms(1);//Wait another millisecond
daryl2110	0:57ece500234e	94	OS::Run();
daryl2110	0:57ece500234e	95	memset(&Bus, 0, MAXBUS * MAXLEN);
daryl2110	0:57ece500234e	96	//seven = Bus[BusIx][NumIx];
daryl2110	0:57ece500234e	97
daryl2110	0:57ece500234e	98	}
daryl2110	0:57ece500234e	99
daryl2110	0:57ece500234e	100	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	101	template<> OS_PROCESS void TProc1::Exec() {
daryl2110	0:57ece500234e	102	int i;
daryl2110	0:57ece500234e	103	int n = 1;
daryl2110	0:57ece500234e	104	for (;;) { // toggling between 7 seg led
daryl2110	0:57ece500234e	105	for (int i=0; i<3; i++) {
daryl2110	0:57ece500234e	106	leds = 0x01 << n;
daryl2110	0:57ece500234e	107	n = (++n) % 3;
daryl2110	0:57ece500234e	108	seven = Bus[BusIx][NumIx];
daryl2110	0:57ece500234e	109
daryl2110	0:57ece500234e	110	}
daryl2110	0:57ece500234e	111	}
daryl2110	0:57ece500234e	112	}
daryl2110	0:57ece500234e	113
daryl2110	0:57ece500234e	114	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	115	template<> OS_PROCESS void TProc2::Exec() {
daryl2110	0:57ece500234e	116
daryl2110	0:57ece500234e	117	for (;;) {
daryl2110	0:57ece500234e	118	if (xbee.readable()) {
daryl2110	0:57ece500234e	119	req = xbee.getc();
daryl2110	0:57ece500234e	120	printf("req = %c\n", req);
daryl2110	0:57ece500234e	121	//XBee.SignalISR();
daryl2110	0:57ece500234e	122	Sleep(2000);
daryl2110	0:57ece500234e	123	}
daryl2110	0:57ece500234e	124	}
daryl2110	0:57ece500234e	125	}
daryl2110	0:57ece500234e	126
daryl2110	0:57ece500234e	127
daryl2110	0:57ece500234e	128	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	129	template<> OS_PROCESS void TProc3::Exec() {
daryl2110	0:57ece500234e	130
daryl2110	0:57ece500234e	131	for (;;) {
daryl2110	0:57ece500234e	132
daryl2110	0:57ece500234e	133	if (req == 'r') {
daryl2110	0:57ece500234e	134	printf("Came here 2 \n");
daryl2110	0:57ece500234e	135	FILE *fp = fopen("/sd/wf/Bus.wav","r");
daryl2110	0:57ece500234e	136	waver.play(fp);
daryl2110	0:57ece500234e	137	printf("playing");
daryl2110	0:57ece500234e	138	fseek(fp, 0, SEEK_SET);
daryl2110	0:57ece500234e	139	fclose(fp);
daryl2110	0:57ece500234e	140
daryl2110	0:57ece500234e	141	}
daryl2110	0:57ece500234e	142	}
daryl2110	0:57ece500234e	143
daryl2110	0:57ece500234e	144	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	145	template<> OS_PROCESS void TProc4::Exec() {
daryl2110	0:57ece500234e	146
daryl2110	0:57ece500234e	147	keypad.CallAfterInput(&cbAfterInput);
daryl2110	0:57ece500234e	148	keypad.Start();
daryl2110	0:57ece500234e	149	while (1) {
daryl2110	0:57ece500234e	150	wait_ms(100);
daryl2110	0:57ece500234e	151	}
daryl2110	0:57ece500234e	152	}
daryl2110	0:57ece500234e	153
daryl2110	0:57ece500234e	154	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	155	void OS::SystemTimerUserHook() {
daryl2110	0:57ece500234e	156	++count;
daryl2110	0:57ece500234e	157	if (count % 2000 == 0) {
daryl2110	0:57ece500234e	158	printf("\n%lld\n", count);
daryl2110	0:57ece500234e	159	}
daryl2110	0:57ece500234e	160	}
daryl2110	0:57ece500234e	161	}
daryl2110	0:57ece500234e	162	//---------------------------------------------------------------------------
daryl2110	0:57ece500234e	163	void OS::IdleProcessUserHook() {
daryl2110	0:57ece500234e	164	__WFI();
daryl2110	0:57ece500234e	165	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	20 Feb 2012
Imports:	5
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	6
Followers:	1

main.cpp@0:57ece500234e, 2012-02-20 (annotated)

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