Great news!
Was it the CRC check in OW_r_data that was the problem?
//Gunnar
Gunnar Karlsson
HotSwap Stockholm AB
Landsvägen 39 | SE-172 63 Sundbyberg, Sweden
Mobile +46 73 9614069 | Switchboard +46 8 4787600
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From: Paul Alfille
[mailto:[email protected]]<mailto:[mailto:[email protected]]>
Sent: den 6 september 2012 04:46
To: Gunnar Karlsson; OWFS (One-wire file system) discussion and help
Subject: Re: [Owfs-developers] problem writing to ds2502
Found the error -- using CRC16 rather than CRC8. Writing fix and will include
in next version. Thanks for finding this error!
Paul Alfille
On Wed, Sep 5, 2012 at 12:14 PM, Gunnar Karlsson
<[email protected]<mailto:[email protected]>> wrote:
Thanks for the quick response.
Yes, I have 12V for eprom writing.
And I can write to a ds2406 so I think that part works.
And yes, I have a bus master, can't recall the name now but it is the same as
in the serial and USB devices that is quite common.
//Gunnar
0739614069
Paul Alfille <[email protected]<mailto:[email protected]>> wrote:
I don't recall if the writing has been tested recently. As a first pass, do you
have a bus master that can generate the 12V needed for EEPROM programming? They
aren't common.
See http://datasheets.maximintegrated.com/en/ds/DS2502.pdf page 2.
Paul Alfille
On Wed, Sep 5, 2012 at 8:23 AM, Gunnar Karlsson
<[email protected]<mailto:[email protected]>> wrote:
Hi
First: thanks for a great program/library/whatever :-)
Second: my question
I cannot write to the eprom on a ds2502 using owfs (owhttpd). It works writing
to the eprom in a ds2406. I cannot find any reference to the eprom status bytes
in the code, is the ds2502 fully supported? anyone else that have had any luck
writing to a ds2502?
(just modifying ow_2502.c so it looks more like ow_2505.c with reading/writing
to status does not seem to be enough)
Kind regards
//Gunnar
Gunnar Karlsson
HotSwap Stockholm AB
Landsvägen 39 | SE-172 63 Sundbyberg, Sweden
Mobile +46 73 9614069<tel:%2B46%2073%209614069> | Switchboard +46 8
4787600<tel:%2B46%208%204787600>
[email protected]<mailto:[email protected]> |
www.hotswap.eu<http://www.hotswap.eu>
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