static void write45(u32 addr,u8 data)
{
if(addr < 0x4020)
write4(addr,data);
else
latch_write(addr,data);
}
void main()
{
//initialize data
var_init();
//initialize timers and cp1 interrupt
setup_timer_1(T1_INTERNAL | T1_DIV_BY_2); //div 2 - 26.2 ms overflow
setup_ccp1(CCP_CAPTURE_FE);
//with 819.2 us overflow for Timer0, motor's speed must be at least 20 RPS
setup_timer_0(T0_INTERNAL | T0_DIV_16); //div 16 - 819.2 us overflow
//enable interrupts
enable_interrupts(INT_RB2|INT_RB3|INT_RB4|INT_RB5);;
enable_interrupts(INT_EXT);
enable_interrupts(INT_TIMER1);
enable_interrupts(INT_CCP1);
enable_interrupts(INT_TIMER0);
enable_interrupts(INT_RDA);
enable_interrupts(GLOBAL);
//initialize clock
ds1307_init();
//test power on
rgb_bits.blue = 0xF00F;
rgb_bits.red = 0x0F0F;
rgb_bits.green = 0x00FF;
latch_write(rgb_bits.blue, rgb_bits.red, rgb_bits.green);
//get the first values of date, time
ds1307_get_time(hour, min, sec);
ds1307_get_date(day, month, year, dow);
// calculating hour hand's position for analog clock
anal_hour = hour % 12;
anal_hour = anal_hour * 5;
anal_hour = anal_hour + (int8)(min / 12);
// calculating hour, minute, day, month numbers to display in digital clock
hour_h = (int8)(hour / 10);
hour_l = hour % 10;
min_h = (int8)(min / 10);
min_l = min % 10;
day_h = (int8)(day / 10);
day_l = day % 10;
month_h = (int8)(month / 10);
month_l = month % 10;
// main routine
while(true)
{
// rs232 operation
if (rs232_status == 11)
{
//notify the RS232 transmission for date, time update is successful
latch_write(0x0000, 0x0FF0, 0x0000);
rs232_status = 0;
ds1307_set_date_time(day, month, year, dow, hour, min, sec);
putc('O');
delay_ms(100);
putc('K');
delay_ms(100);
latch_ClearAll();
}
// get the time value from ds1307 after each 5 minutes
if(tick == 300)
{
ds1307_get_time(hour, min, sec);
ds1307_get_date(day, month, year, dow);
anal_hour = hour % 12;
anal_hour = anal_hour * 5;
anal_hour = anal_hour + (int8)(min / 12);
tick = 1;
}
// change values of minute and hour at appropriate value of second and minute
if(sec > 59)
{
sec = 0;
min++;
if(min > 59)
{
min = 0;
ds1307_get_time(hour, min, sec);
anal_hour = hour % 12;
anal_hour = anal_hour * 5;
anal_hour = anal_hour + (int8)(min / 12);
}
//refresh value for digital clock after each minute
hour_h = (int8)(hour / 10);
hour_l = hour % 10;
min_h = (int8)(min / 10);
min_l = min % 10;
}
//display routine
if(circle_trigger == 1)
{
circle_trigger = 0;
if ((smode % 2) == 1) latch_ClearAll();
digit_sec++;
section_trigger = 1;
section_count = MAX_SECTION;
section_timer = 256 - (int8)(sigHall_timer / (MAX_SECTION * 8)) + tuning;
while(circle_trigger == 0 && section_count > 0)
{
if(section_trigger == 1)
{
set_timer0(section_timer);
section_trigger = 0;
//data calculation
fetch_data();
//shifting data
latch_write(rgb_bits.blue, rgb_bits.red, rgb_bits.green);
//smode change between continuous display and discrete display
if ((smode % 2) == 1 && section_count > 1) latch_ClearAll();
section_count--;
}
}
}// circle_trigger
} // end of while(true)
}
