//---------------------------------------------------------------------------------------
void main(void)
{
if(BD == 0) // Baudratengenerator noch nicht aktiv
init_seriell(); // serielle Kommunikation ermöglichen
init_timer0(); // Timer 0 initialisieren
init_ad();
init_p33();
EAL=1; // Interrupts generell freigegeben
while(1) // Endlos
{
maske=0x01;
sec=0; // Sec reset
printstring("Portpin: "); // Portpin Eingabeaufforderung
pin=getchar(); // Einlesen
putchar(pin);
putchar('\n');
printstring("Vorwahl: "); // Eingabeaufforderung
ADDATL=1;
while(BSY==1);
vorwahl=ad10bit/100;
printuintdez(vorwahl);
putchar('s');
pin-=0x30; // ASCII Konvertierung
maske=maske<<pin; // Pin in maske schieben
P5=P5&~maske; // LED an
TR0=1; // Timer0 starten
while(vorwahl!=sec); // Warten bis die Zeit erreicht wurde
P5=P5|maske; // LED aus
TR0=0; // Timer 0 stoppen
}
}
/////////////////////////
// Simple application.
void main (void)
{
unsigned char cdata[4]={0,0,0,0};
unsigned char status;
unsigned long conv = 0;
unsigned char buf[14];
unsigned char na = 0;
float reads = 0;
float avr = 0;
/////////////////////////////////////////////////////////////////////
// Initialize lcd
init_lcd();
// Initialize LTC2440
init_ad();
// Turn off blinking cursor
control (BLINK_OFF_CURSOR_OFF);
// Clean lcd screen
clr_lcd();
// Display first message
wrstr_lcd (" LTC2440 TEST");
locate_lcd(1, 0);
wrstr_lcd (" DIGITAL VOLTMETER ");
delay (30000);
clr_lcd();
// Screen template
locate_lcd(0, 0);
wrstr_lcd ("INPUT: ");
while (1)
{
if (LTC2440_eoc() == IDLE) {
delay(300);
}
else {
// Get status and raw conversion from ADC
status = LTC2440_rd(&cdata) ;
conv = LTC2440_get_value (&cdata);
// Test if Over or Under flow
if (status == ADOVF)
sprintf (buf, "%s ", "+++ OVL +++ ");
else if (status == ADUNF)
sprintf (buf, "%s ", "--- UNF --- ");
else {
// If readings are valid convert in signed floating number
if (status == (ADRDY | ADOVF))
reads = (float) (conv * VREF) / RANGE ;
else if (status == (ADRDY | ADUNF))
reads = (float) (conv * VREF) / RANGE - VREF ;
// Add averages
if (na++ < MAXAVR)
avr += reads;
else {
// Display averaged value
sprintf (buf, "%+1.7f V", avr/(na-1));
na = 0;
avr = 0;
}
}
}
// display value in the right position.
locate_lcd(0, 7);
wrstr_lcd (buf);
}
}
