RSSDS1307 – first glance
Mar 22
I tried wireing the ds1307 RTC IC from dallas up that i got as a sample from maxim, with a little help from the datasheet i connected all the pins to the correct connectections, but nothing happend, the samplecode found at http://www.glacialwanderer.com/hobbyrobotics/?p=12 showed me at first 00:00:00 as output.
- Tip1:connect vbat to gnd if not using a battery.
Then the output changed, now the serial console outputted the time i had set in the code, but the clock wasnt runing, it never changed.
- Tip2:connect a LED with a 220 ohm resistor to the square wave pin on the IC(see datasheet for details) This will give you a 1 hz blink if the chip is working.
Im my setup it DIDNT blink.
- Tip3:connect the correct crystal, a Clock Crystal 32,768kHz 2×6mm 15ppm(not a 32 Mhz crystal, like i did)
Now im just waiting for the correct crystal to arrive before i can continue working with this component.
Im continuing the use of my ibutton RTC, which has integrated crystal and battery for easy usage.
Link to the arduino forum post