trunk/Embedded/main.c

#include <pic18.h>
#include <stdio.h>
#include <string.h>
#include "lcd.h"
#include "Delay.h"
// Delay.h is included inside lcd.c

#define LCD_LENGTH 16
#define LCD_ROWS 2


unsigned char global_Pot_Hi, global_Pot_Lo;
unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
unsigned char global_serial_data;
unsigned char global_serial_recieve_buffer[LCD_LENGTH];
bit global_recieve_done = 0;
int global_serial_byte_counter = 0;

void serial_recieved(void);

// Nicked from H7
void ad_init(void)
{
        // AD Conversion clock
        ADCS0 = 0;
        ADCS1 = 0;
        ADCS2 = 0;

        //Select AN0/RA0 for AD source
                // In this (000) setup, it's only RA0/AN0 that does ad convertion.
        CHS0=0;
        CHS1=0;
        CHS2=0;
        
        //Only AN0 is selected for AD and with Vdd/Vss as limits
        PCFG0=0;
        PCFG1=1;
        PCFG2=1;
        PCFG3=1;
        
        //Result is left justified
        ADFM=0; 
        
        //Fire up for A/D converter module
        ADON=1;
}

void rs232_init(void)
{
        SPEN    = 0;    // Serial Port Enable Bit... 0 = disabled
        TRISC6  = 0;    
        TRISC7  = 1;

        SPBRG   = 207;  // 1200 baud rate... 25 = 9600
                                        // x = (Fosc / (16*[baud rate]) )-1
        TXSTA   = 0x24; // Enables BRGH and TXEN inthe TXSTA register
        RCSTA   = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
}

void interrupt_init(void)
{
        // Assumes that all interrupts default is 0
        PEIE    = 1;
        GIE             = 1;
        RCIE    = 1;    // Recieve interrupt enable.
        IPEN    = 0;    // Nfo interrupt priority
        TXIE    = 0;    // Serial interrupt enabled
}       

void pic18_io_init(void)
{
        TRISA0  = 1;    // analog input
        TRISB1  = 1;    // TRISB1-4 Digital input
        TRISB2  = 1;
        TRISB3  = 1;
        TRISB4  = 1;
}       

void sms_init(void)
{
}

void interrupt interrupt_handler(void)
{
        // Finds out what interrupt have been trigged, and starts the respective function.
        if(RCIF == 1)                   // Serial recieve interrupt
        {
                serial_recieved();
                RCIF = 0;
        }
}               


void serial_send(void)
{
        int i;
        char tosend[3];
        char data;
        sprintf(tosend,"%s", "at\r");
        for(i = 0; i < 3; i++)
        {
                data = tosend[i];
                TXREG = data;
                while(TRMT==0) 
                DelayMs(1000);
        }
}       

void serial_recieved(void)
{
        char data, saved_data[LCD_LENGTH];
        
        data = RCREG;
        
        global_serial_recieve_buffer[global_serial_byte_counter] = data;
        if(data == '\r')
        {
                global_recieve_done = 1;
                global_serial_byte_counter = 0;
        }       
        else
        {
                global_serial_byte_counter++;
        }
        
}
        
void main()
{
/////////////////////////////////////////////
// Running Init's

        // Running init for various components.
        //AD_init();
        ad_init();
        rs232_init();
        pic18_io_init();
        lcd_init(0);
        interrupt_init();
        
/////////////////////////////////////////////
// Main loop

        while(1)
        {
        // Checking if A/D convertion is done, and save the data in global_Pot_??
                if(GODONE==0)
                {
                        global_Pot_Hi = ADRESH;
                        global_Pot_Lo = ADRESL;
                        GODONE = 1;
                }
                
                if( global_recieve_done == 1 )
                {
                        lcd_clear();
                        lcd_goto(0x00);
                        lcd_puts(global_serial_recieve_buffer);
                        global_recieve_done = 0;
                }
        }
}
1	#include <pic18.h>
2	#include <stdio.h>
3	#include <string.h>
4	#include "lcd.h"
5	#include "Delay.h"
6	// Delay.h is included inside lcd.c
7
8	#define LCD_LENGTH 16
9	#define LCD_ROWS 2
10
11
12	unsigned char global_Pot_Hi, global_Pot_Lo;
13	unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH];
14	unsigned char global_serial_data;
15	unsigned char global_serial_recieve_buffer[LCD_LENGTH];
16	bit global_recieve_done = 0;
17	int global_serial_byte_counter = 0;
18
19	void serial_recieved(void);
20
21	// Nicked from H7
22	void ad_init(void)
23	{
24	// AD Conversion clock
25	ADCS0 = 0;
26	ADCS1 = 0;
27	ADCS2 = 0;
28
29	//Select AN0/RA0 for AD source
30	// In this (000) setup, it's only RA0/AN0 that does ad convertion.
31	CHS0=0;
32	CHS1=0;
33	CHS2=0;
34
35	//Only AN0 is selected for AD and with Vdd/Vss as limits
36	PCFG0=0;
37	PCFG1=1;
38	PCFG2=1;
39	PCFG3=1;
40
41	//Result is left justified
42	ADFM=0;
43
44	//Fire up for A/D converter module
45	ADON=1;
46	}
47
48	void rs232_init(void)
49	{
50	SPEN = 0; // Serial Port Enable Bit... 0 = disabled
51	TRISC6 = 0;
52	TRISC7 = 1;
53
54	SPBRG = 207; // 1200 baud rate... 25 = 9600
55	// x = (Fosc / (16*[baud rate]) )-1
56	TXSTA = 0x24; // Enables BRGH and TXEN inthe TXSTA register
57	RCSTA = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register
58	}
59
60	void interrupt_init(void)
61	{
62	// Assumes that all interrupts default is 0
63	PEIE = 1;
64	GIE = 1;
65	RCIE = 1; // Recieve interrupt enable.
66	IPEN = 0; // Nfo interrupt priority
67	TXIE = 0; // Serial interrupt enabled
68	}
69
70	void pic18_io_init(void)
71	{
72	TRISA0 = 1; // analog input
73	TRISB1 = 1; // TRISB1-4 Digital input
74	TRISB2 = 1;
75	TRISB3 = 1;
76	TRISB4 = 1;
77	}
78
79	void sms_init(void)
80	{
81	}
82
83	void interrupt interrupt_handler(void)
84	{
85	// Finds out what interrupt have been trigged, and starts the respective function.
86	if(RCIF == 1) // Serial recieve interrupt
87	{
88	serial_recieved();
89	RCIF = 0;
90	}
91	}
92
93
94
95	void serial_send(void)
96	{
97	int i;
98	char tosend[3];
99	char data;
100	sprintf(tosend,"%s", "at\r");
101	for(i = 0; i < 3; i++)
102	{
103	data = tosend[i];
104	TXREG = data;
105	while(TRMT==0)
106	DelayMs(1000);
107	}
108	}
109
110	void serial_recieved(void)
111	{
112	char data, saved_data[LCD_LENGTH];
113
114	data = RCREG;
115
116	global_serial_recieve_buffer[global_serial_byte_counter] = data;
117	if(data == '\r')
118	{
119	global_recieve_done = 1;
120	global_serial_byte_counter = 0;
121	}
122	else
123	{
124	global_serial_byte_counter++;
125	}
126
127	}
128
129	void main()
130	{
131	/////////////////////////////////////////////
132	// Running Init's
133
134	// Running init for various components.
135	//AD_init();
136	ad_init();
137	rs232_init();
138	pic18_io_init();
139	lcd_init(0);
140	interrupt_init();
141
142	/////////////////////////////////////////////
143	// Main loop
144
145	while(1)
146	{
147	// Checking if A/D convertion is done, and save the data in global_Pot_??
148	if(GODONE==0)
149	{
150	global_Pot_Hi = ADRESH;
151	global_Pot_Lo = ADRESL;
152	GODONE = 1;
153	}
154
155	if( global_recieve_done == 1 )
156	{
157	lcd_clear();
158	lcd_goto(0x00);
159	lcd_puts(global_serial_recieve_buffer);
160	global_recieve_done = 0;
161	}
162	}
163	}