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ds1621 driver

 
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atai21



Joined: 30 Dec 2010
Posts: 31

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ds1621 driver
PostPosted: Sat Mar 05, 2011 7:52 am     Reply with quote
hai,
may i know whether this code work for ds1621 or not.TQ

Dallas DS18B20, 1 wire bus, +/-, multi device, Light codes.
http://www.ccsinfo.com/forum/viewtopic.php?t=41878
temtronic



Joined: 01 Jul 2010
Posts: 9229
Location: Greensville,Ontario

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PostPosted: Sat Mar 05, 2011 1:50 pm     Reply with quote
quick answer , as written no..

however..it an be rewritten to work.

please read the datasheets of these devices.

compare the timing and structure of the communications required.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sat Mar 05, 2011 2:52 pm     Reply with quote
CCS has a driver for the ds1621, and it can handle multiple ds1621's.
It's in this directory:
Quote:

c:\program files\picc\drivers\ds1621m.c

It has these functions:
Quote:

void init_temp(int address)
BYTE read_high_temp(int address) // Returns degrees F (0-255)
signed int read_low_temp(int address) // Returns degrees F (-67 to 127)
signed long read_full_temp(int address) // Returns degrees F (-67 to 257)

The 'address' parameter is a number from 0 to 7, which corresponds to
the address pins A0, A1, A2 on each ds1621. For example, if you connect
A0,A1,A2 to ground, the address will be 0. If you connect A0 to +5v and
A1, A2 to ground, the address will be 1. Etc.
atai21



Joined: 30 Dec 2010
Posts: 31

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PostPosted: Sun Mar 06, 2011 6:57 pm     Reply with quote
TQ for your fast reply
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