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DS1302

 
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dabendanla



Joined: 19 Oct 2011
Posts: 1

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DS1302
PostPosted: Wed Oct 19, 2011 9:41 am     Reply with quote
Hi all, I tried to read a data from ds1302 but I failed to do so. Is there anything wrong in my code?
Code:

RST = 1;         
data_out(0x85);         //write to read hr register
temp1 = data_in();    //read in data
sec[2] = get_bcd(temp1);     //convert e data to bcd.. get from ds1302.c
RST = 0;

But I did it in burst read mode... it works.. can anyone explain this to me?
Thanks
Code:

RST = 1;      
data_out(0xBF);         //clock burst read
sec[0] = data_in();      //sec
sec[1] = data_in();      //min      
hr = data_in();      //hour
RST = 0;
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Wed Oct 19, 2011 11:10 am     Reply with quote
Don't try to re-invent the wheel. The driver directory of your CCS compiler contains a tested driver for the DS1302.

An example program can be found in the examples directory: EX_RTCLK.C
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