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#include <pic18.h> |
#include <pic18.h> |
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#include <stdio.h> |
#include <stdio.h> |
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#include <string.h> |
#include <string.h> |
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#include "lcd.h" |
#include "lcd.h" |
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#include "Delay.h" |
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// Delay.h is included inside lcd.c |
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void AD_init(void) |
#define LCD_LENGTH 16 |
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#define LCD_ROWS 2 |
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ADON = 1; |
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unsigned char global_Pot_Hi, global_Pot_Lo; |
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unsigned char global_LCD_Buffer[LCD_ROWS][LCD_LENGTH]; |
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unsigned char global_serial_data; |
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unsigned char global_serial_recieve_buffer[LCD_LENGTH]; |
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bit global_recieve_done = 0; |
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int global_serial_byte_counter = 0; |
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void serial_recieved(void); |
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// Nicked from H7 |
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void ad_init(void) |
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{ |
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// AD Conversion clock |
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ADCS0 = 0; |
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ADCS1 = 0; |
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ADCS2 = 0; |
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//Select AN0/RA0 for AD source |
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// In this (000) setup, it's only RA0/AN0 that does ad convertion. |
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CHS0=0; |
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CHS1=0; |
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CHS2=0; |
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//Only AN0 is selected for AD and with Vdd/Vss as limits |
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PCFG0=0; |
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PCFG1=1; |
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PCFG2=1; |
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PCFG3=1; |
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//Result is left justified |
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ADFM=0; |
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//Fire up for A/D converter module |
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ADON=1; |
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} |
} |
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void rs232_init(void) |
void rs232_init(void) |
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{ |
{ |
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SPEN = 0; // Serial Port Enable Bit... 0 = disabled |
SPEN = 0; // Serial Port Enable Bit... 0 = disabled |
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TRISC6 = 0; |
TRISC6 = 0; |
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TRISC7 = 1; |
TRISC7 = 1; |
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SYNC = 0; // SYNC switches between async(0) and sync(1) mode. |
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SPBRG = 25; |
SPBRG = 207; // 1200 baud rate... 25 = 9600 |
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TXSTA = 0x24; |
// x = (Fosc / (16*[baud rate]) )-1 |
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RCSTA = 0x90; |
TXSTA = 0x24; // Enables BRGH and TXEN inthe TXSTA register |
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SPEN = 1; |
RCSTA = 0x90; // 0x90 enables SPEN and CREN in the RCSTA register |
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} |
} |
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void interrupt_init(void) |
void interrupt_init(void) |
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// Assumes that all interrupts default is 0 |
// Assumes that all interrupts default is 0 |
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PEIE = 1; |
PEIE = 1; |
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GIE = 1; |
GIE = 1; |
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RCIE = 1; |
RCIE = 1; // Recieve interrupt enable. |
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IPEN = 0; // Nfo interrupt priority |
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TXIE = 0; // Serial interrupt enabled |
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} |
} |
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void pic18_io_init(void) |
void pic18_io_init(void) |
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{ |
{ |
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TRISA0 = 1; |
TRISA0 = 1; // analog input |
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TRISB1 = 1; |
TRISB1 = 1; // TRISB1-4 Digital input |
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TRISB2 = 1; |
TRISB2 = 1; |
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TRISB3 = 1; |
TRISB3 = 1; |
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TRISB4 = 1; |
TRISB4 = 1; |
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} |
} |
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void interrupt_recieve_handler(void) |
void sms_init(void) |
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{ |
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// Handle recieve inputs... |
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} |
} |
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void interrupt interrupt_handler(void) |
void interrupt interrupt_handler(void) |
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// Finds out what interrupt have been trigged, and starts the respective function. |
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{ |
{ |
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if(RCIF == 1) |
// Finds out what interrupt have been trigged, and starts the respective function. |
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if(RCIF == 1) // Serial recieve interrupt |
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{ |
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interrupt_recieve_handler(); |
serial_recieved(); |
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RCIF = 0; |
RCIF = 0; |
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} |
} |
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} |
} |
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void serial_send(void) |
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{ |
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int i; |
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char tosend[3]; |
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char data; |
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sprintf(tosend,"%s", "at\r"); |
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for(i = 0; i < 3; i++) |
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{ |
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data = tosend[i]; |
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TXREG = data; |
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while(TRMT==0) |
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DelayMs(1000); |
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} |
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} |
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void serial_recieved(void) |
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{ |
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char data, saved_data[LCD_LENGTH]; |
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data = RCREG; |
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global_serial_recieve_buffer[global_serial_byte_counter] = data; |
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if(data == '\r') |
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{ |
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global_recieve_done = 1; |
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global_serial_byte_counter = 0; |
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} |
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else |
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{ |
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global_serial_byte_counter++; |
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} |
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} |
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void main() |
void main() |
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{ |
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AD_init(); |
///////////////////////////////////////////// |
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// Running Init's |
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// Running init for various components. |
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//AD_init(); |
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ad_init(); |
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rs232_init(); |
rs232_init(); |
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pic18_io_init(); |
pic18_io_init(); |
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lcd_init(0); |
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interrupt_init(); |
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if(GODONE==0) |
///////////////////////////////////////////// |
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// Main loop |
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while(1) |
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{ |
{ |
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// Checking if A/D convertion is done, and save the data in global_Pot_?? |
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if(GODONE==0) |
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{ |
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global_Pot_Hi = ADRESH; |
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global_Pot_Lo = ADRESL; |
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GODONE = 1; |
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} |
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if( global_recieve_done == 1 ) |
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{ |
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lcd_clear(); |
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lcd_goto(0x00); |
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lcd_puts(global_serial_recieve_buffer); |
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global_recieve_done = 0; |
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} |
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} |
} |
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} |
} |