Any Code samples for the DS1921 Thermocron?

TimC

Hi,
Just got a new BS2px and a cool one wire device that will log temperature changes all on it's own power.

I have the basics down with code that reads the serial number and R/W to the RAM.

I am looking for code samples to help me read/write the time and read the temp.

If someone knows how to set up the logging and read out the results that would be great. I just want the joy of a few programming hurdles in order to complete the project

Thanks
Tim C

TimC

I was able to answer my own questions. However it did take the whole weekend.
Turns out I had started a "mission" with my DS1921 last January so it had over 75K data points inside. Here is what I got out of it:
DS1921L Test

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DS1921L - ROM Information:
Temp Range code -> 34C
Serial Number -> 0 00 01 84 EA
Family Code -> 21
Read back what was written to DS1921L scratchpad.
-> 1234567890a
Address: -> 0 - 10
Copying DS1921L scratchpad to memory.
Read DS1921L memory.
-> 1234567890a
Current Date/Time:
-> 06/25/06 23:16:12
First Mission sample at:
-> 01/20/05 22:23
ALL||Current number of mission samples taken for this device:
-> 124002 || 75030
Read DS1921L Status Register.
-> 10100111 Mission IS Running
Read DS1921L Control Register.
-> 00001001 RTC Running
Read the current DS1921L Temperature:
-> 24C
Read some Histogram data at around 23C-25C:
-> 10701 15364 16470 12231 7340

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I should note that others have reported errors in transmission to one wire devices, I did not get any with my 3 foot coiled cable. The code is not tidy but it should help others work with the one wire devices.
Regards
Tim