/* * File: main.c * Author: Arlindo Neto Montagnoli * * Created
on March 18, 2013, 10:15 AM */#define __18F4520 //evita bug de
ficar c/ marcas vermelhas#include #include #include #include
#include #include #include #include #include #include
//------------------------------------------------------------------------------#pragma
config OSC = HS#pragma config PWRT = ON#pragma config WDT = OFF,
WDTPS = 1#pragma config LVP = OFF#pragma config DEBUG = OFF#pragma
config MCLRE = ON#pragma config CP0 = OFF,CP1 = OFF,CP2 = OFF,CP3 =
OFF,CPB = OFF,CPD = OFF#pragma config WRT0 = OFF,WRT1 = OFF,WRT2 =
OFF,WRT3 = OFF,WRTB = OFF,WRTC = OFF,WRTD = OFF#pragma config
IESO=ON//------------------------------------------------------------------------------//------------------------------------------------------------------------------#define
_XTAL_FREQ 20000000#define BAUDRATE 57600#define BRG_VAL
(_XTAL_FREQ)/(16*BAUDRATE)-1#define clearXLCD()
WriteCmdXLCD(0x01)#define linha1() WriteCmdXLCD(0x80)#define
linha2()
WriteCmdXLCD(0xC0)//------------------------------------------------------------------------------//
Prottippo da Funes (Cabealho)void InitializeADC(void);void
InitializeLCD(void);void DelayFor18TCY(void);void
DelayPORXLCD(void);void DelayXLCD(void);int getADC(void);void
InitializeUSART(void);void InitializePWM(void);void
ConfigPIC(void);//------------------------------------------------------------------------------//Variveis
globais#define MAX_CHAR 20char RXChar[MAX_CHAR];unsigned char
cntChar =0;unsigned char flagString
=0;//------------------------------------------------------------------------------void
interrupt Interrupcao(){ if (PIR1bits.RCIF) //check USART {
PIR1bits.RCIF = 0; RXChar[cntChar]=ReadUSART();
if(cntChar>=(MAX_CHAR-1)) RXChar[MAX_CHAR-1]='\0'; if(
RXChar[cntChar]=='\0') { cntChar=0; flagString = 1; } else
cntChar++; while(BusyUSART()); } /* else if (INTCONbits.TMR0IF) {
INTCONbits.TMR0IF = 0; //Clear flag //...
}*/}//------------------------------------------------------------------------------void
InitializeLCD(void){ DelayPORXLCD(); OpenXLCD(FOUR_BIT &
LINES_5X7); DelayPORXLCD();
WriteCmdXLCD(DON&CURSOR_OFF&BLINK_OFF);
while(BusyXLCD());}//------------------------------------------------------------------------------void
DelayFor18TCY(void){ __delay_us(10);//10
}//------------------------------------------------------------------------------void
DelayPORXLCD(void) // minimum 15ms{ __delay_ms(20);//20
}//------------------------------------------------------------------------------void
DelayXLCD(void) // minimum 5ms{ __delay_ms(10);//10
}//------------------------------------------------------------------------------void
InitializeADC(void){TRISAbits.TRISA0 = 1;OpenADC( ADC_FOSC_8 &
ADC_RIGHT_JUST & ADC_0_TAD, ADC_CH0 & ADC_INT_OFF &
ADC_VREFPLUS_VDD & ADC_VREFMINUS_VSS,
0b1011);SetChanADC(ADC_CH0);}//------------------------------------------------------------------------------int
getADC(void){int adc;ConvertADC(); // Start conversionwhile(
BusyADC() ); // Wait for ADC conversionadc = ReadADC(); // Read
result and put in temp// CloseADC(); // Disable A/D converterreturn
adc;}//----------------------------------------------------------------------------void
InitializeUSART(void){ OpenUSART (USART_TX_INT_OFF &
USART_RX_INT_ON & USART_ASYNCH_MODE & USART_EIGHT_BIT &
USART_CONT_RX & USART_BRGH_HIGH,BRG_VAL
);}//----------------------------------------------------------------------------void
InitializePWM(void){char Periodo = 0xFF;OpenPWM1 (Periodo
);}//------------------------------------------------------------------------------void
ConfigPIC(void){ TRISAbits.RA0 = 1; TRISCbits.RC6 = 0; //TX pin set
as output TRISCbits.RC7 = 1; //RX pin set as input RCONbits.IPEN =
0; // disable interrupt priority PIE1bits.RCIE = 1; // enable USART
receive interrupt INTCONbits.PEIE = 1; // enable peripheral
interrupts. INTCONbits.GIE = 1; // enable
interrupts}//------------------------------------------------------------------------------void
main(){ unsigned int adc; __delay_ms(30); ConfigPIC();
InitializeLCD(); InitializeADC(); //InitializeUSART();
//InitializePWM(); int adc_read; float lm; char teste; //adc_read =
getADC(); //lm = adc_read/2; //sprintf (teste, "T = %f", lm);
//linha1(); //putsXLCD(teste); while(1) { adc_read = getADC(); lm =
adc_read*0.488; sprintf (teste, "T = %f", lm); linha1();
putsXLCD(teste);//Teste: Ecoa a string quando encontra o final '\0'
if(flagString==1) { putsUSART(RXChar); flagString=0; }
}}//----------------------------------------------------------------------------
