Real time clock ICs

[Melanie]

Since my original program was configured for a 4-Line LCD (which extensively used the LCDOut command), and you're using a 2-Line LCD which does not, unless you make significant changes to the program to compensate for the difference it's not exactly going to work, is it?

You might need to be aware, that a 2-Line LCD communicates by SERIAL asynchronous. For reliability your PIC will ideally need to be driven by an Xtal or Resonator and not rely on the Internal Oscillator. See Thread...

http://www.picbasic.co.uk/forum/show...nal+Oscillator

A 4 or 8-wire connected LCD does not have this limitation.

You obviously haven't a clue as to what you're doing. With your level of expertise, unless you EXACTLY replicate programs and hardware examples that are posted - without changes, your chances of success are slim to none.

Let me put this into perspective... I catch a Cold. I therefore go into a BioMed Lab to devise a cure. I only need to cure my Cold, and then I will never set foot in a BioMed Lab ever again. I give myself a week to accomplish this... I am not a Doctor or a Scientist or even a BioMed Technician. All I know is that the Plasma they drip into your arm is the same stuff that drives the Starship Enterprise...

[Eng4444]

I already said that i have no clue...

i have LCD 4 lines so i will try it....

[Eng4444]

This DS1307... we do not program it? just access it from PIC?

A Professor here said that i am obliged to program it... one of us is stupid so who is it?


for me, i have read so many examples but i never noticed that i should program a DS1307.... i just have to connect it to PIC and then access it by the program..

Am i mistaken?

[Travin77]

I think that the professor is using "program" loosely. You will write the time and date therby "programming it".

Travin

[Archilochus]

There are also a few control bits that might need configuring - 12/24 hour mode, square wave output & rate, and a whopping 56 bytes of "NV"RAM for you to use... guess those could also fall into the "program" category :-)

Arch

[Melanie]

>A Professor here said that i am obliged to program it... one of us is stupid so who is it?

Have you read the DS1307 Datasheet?

If you haven't then GO DO IT before you ask questions like the one above.

You will discover that when you first Power-Up a DS1307 for the first time (regardless if you have a Battery Backup connected or not), it sits there and DOES NOTHING until you enable it by clearing the CH (Clock Halt) bit in one of it's Registers (which Bit in which Register I leave you to discover by READING the device Datasheet). That Sir is called "programming" - apart from that, how's the chip supposed to know what the current Time and Date is from which to continue timing? Telepathy?

People who can't be bothered to read Datasheets or Manuals and expect everyone else to do their work for them usually get short changed on this forum.

[Eng4444]

He apologised today... he meant by "programming" the real meaning and not as many expected.. Simply, he meant that i should put all the program inside DS1307.... i think he didn't have any idea about this DS...

anyway, life continues.... i'm about to present my project on friday.Still delaying this matter of timer because it makes me nervous! have i ever said that i designed a new instrument that analyzes blood, saliva and bones at the same time?

It's so useful and i am working now on reducing it's size... i'm using MEMS technlogy in case anyone is interested.

This is why i'm so squeezed by time and do not have time to read any discover new and silly datasheets.... time is treasure and i cannot lose it.

So if this timer does not work it doesn't matter but i just hope it will work so that i can display time and date on the screen or maybe put a timer to be used by patients.