8583 rtc date problem

[crazyhellos]

Hai jerson,

Thanks for your repley. I'm sorry, but I dont still get it how I must do it. The
year isn't that important for my application, because i can make that in my
chip, although it would be more easy for me to let the chip do the work.

The problem is still that I cant get the months and days of the chip in the
correct way, so I hope that you can show me how you have done it. I dont
want to copy it, i want to understand it what i'm doing wrong. You may mail
me your source if you dont want it to be read by everyone.

Hopefully you can help, because i cant get any furhter with this project.

Ps it is going be be a 20x4 lcd for in my car with time, date and temp.

[Jerson]

Hai jerson,

Thanks for your repley. I'm sorry, but I dont still get it how I must do it.

CrazyHellos

The address I have used for the RTC is $A2 because the pin 3 is tied to Vcc in my board. gr[0] is a register I have defined in my program; you may rename it to whatever you like.

Rest of the program is self explaining if you refer the datasheet for the RTC. However, you must remember, all registers of the RTC are in BCD format. Not binary. So, a month of 12 (december) should be entered as $12 or decimal(18). Maybe this is where you have the problem.

Regarding sharing my code, I have already shared the relevant part. Beyond this, I am sorry, you will have to work it out. The joy you get when your own code works will be something you will cherish.
Jerson

[crazyhellos]

thanks for your explenation about your code, its more clear to me now. I'm going
to workt on it and if I have dont it i wil let you know, thanks