private static void InitializeClock()
{
try {
_clock.Get();
} catch (Exception e) {
Debug.Print("Initializating the clock with default values due to: " + e);
byte[] ram = new byte[DS1307.DS1307_RAM_SIZE];
_clock.Set(new DateTime(2011, 1, 1, 12, 0, 0));
_clock.Halt(false);
_clock.SetRAM(ram);
}
}
public static void Main()
{
var clock = new DS1307();
// Set the clock to some arbitrary date / time
clock.Set(new DateTime(2011, 1, 2, 20, 20, 20));
// Make sure the clock is running
clock.Halt(false);
// Test reading RTC clock registers
Debug.Print("Before Halt: " + clock.Get().ToString());
// Halt the clock for 3 seconds
clock.Halt(true);
Thread.Sleep(3000);
// Should be the same time as "Before Halt"
Debug.Print("After Halt for 3 seconds (should be the same time): " + clock.Get().ToString());
// Resume the clock
clock.Halt(false);
// Sleep for another 1.5 second
Thread.Sleep(1500);
// Should be just one second later since the clock's oscillator was resumed
Debug.Print("Resumed Clock (should be time + ~1 sec): " + clock.Get().ToString());
// Requires an oscilloscope or an interrupt handler on the microcontroller to see the effects
TestSquareWaves(ref clock);
// Test writing to arbitrary registers
Debug.Print("Writing distinct RAM registers (writing the register number to itself)");
for (byte I = DS1307.DS1307_RAM_START_ADDRESS; I <= DS1307.DS1307_RAM_END_ADDRESS; I++)
{
clock.WriteRegister(I, I);
}
// Test reading from arbitrary registers
Debug.Print("Reading distinct RAM registers (the registers and values read should be the same)");
for (byte I = DS1307.DS1307_RAM_START_ADDRESS; I <= DS1307.DS1307_RAM_END_ADDRESS; I++)
{
Debug.Print(I.ToString() + ": " + clock[I].ToString());
}
// Test writing to the RAM as a single block
//-------------01234567890123456789012345678901234567890123456789012345
string Text = "[There are 56 bytes in the RTC RAM buffer and that's it]";
Debug.Print("Writing string: " + Text + " (Length=" + Text.Length.ToString() + ") to the RAM as a block.");
var ram = new byte[DS1307.DS1307_RAM_SIZE];
// Copy the string to the ram buffer
for (byte I = 0; I < DS1307.DS1307_RAM_SIZE; I++)
{
ram[I] = (byte)Text[I];
}
// Write it to the RAM in the clock
clock.SetRAM(ram);
// Zero out the ram buffer
ram = null;
// Zero out the string
Text = null;
// Test reading from the RAM as a single block
Debug.Print("Reading from the RAM as a block...");
ram = clock.GetRAM();
for (byte I = 0; I < DS1307.DS1307_RAM_SIZE; I++)
{
Text += (char)ram[I];
}
Debug.Print("RAM: " + Text + " (Length=" + Text.Length.ToString() + ")");
// Sleep another 5 seconds before exiting
Thread.Sleep(5 * 1000);
// Reset the clock & RAM
clock.Set(new DateTime(2011, 2, 17, 21, 36, 00));
for (byte I = 0; I < DS1307.DS1307_RAM_SIZE; I++)
{
ram[I] = (byte)0;
}
// Write it to the RAM in the clock
clock.SetRAM(ram);
}