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LIN decoding not reliable

Forum for discussing PicoScope version 6 (non-automotive version)

Re: LIN decoding not reliable

Postby ge75el » Fri Feb 06, 2015 9:53 am

Version 6.8 is also not perfect. The frames in LinDecode6.8.png were easily identify as one header-only and one with payload. And the decoding makes one frame.
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LinDecode6.8.png
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Re: LIN decoding not reliable

Postby Hitesh » Mon Feb 09, 2015 9:43 am

Hi Georg,

Unfortunately, data files saved with one version of PicoScope 6 are not backwards compatible with older versions i.e. it is not possible to open a data file saved with PicoScope 6.10 with PicoScope 6.8.

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Hitesh

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Re: LIN decoding not reliable

Postby zezephil » Mon Jul 27, 2015 5:06 pm

Hello Hitesh,
I have receive my new toy a pico 5000 some days ago.
I have to qualify a device using LIN protocol. I see that the previous version seems to have decoding problem.
I do face also decoding issues with my tool even with version 6.10.16.2.
I guess that the tool is expecting to decode the synchro field just after the synchro break. and that polutes all the decoding.
Could you please have a look and let me know if I wrongly configure anything or if my guessing are true.
Attachments
LIN decoding fail.PNG
LIN frame decoded is false. SB is 13 bits, Sychro field is decoded = FF and ID =55.
But the frame corresponds to the message ID 8 data 8; 0; 0; 0;
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Re: LIN decoding not reliable

Postby Martyn » Mon Jul 27, 2015 7:40 pm

Please try with the Beta version 6.11 which you can download from our website, the serial decoding base code has been completely re written
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Re: LIN decoding not reliable

Postby Mark_O » Wed Jul 29, 2015 5:32 am

Hitesh wrote:Unfortunately, data files saved with one version of PicoScope 6 are not backwards compatible with older versions i.e. it is not possible to open a data file saved with PicoScope 6.10 with PicoScope 6.8.

That is a bit surprising. Is it really necessary to break compatibility at the file-interface layer? How often does this occur?

When things wind up broken in a newer version, and one must fall back to an older version to restore functionality, this presents a real impediment. Considering how often this seems to have happened with PS6, it is especially unfortunate.

While data files in newer version of PS6 may not be compatible with older versions of the code, can we at least be assured that older saved data files will be readable by newer code versions?

- Mark
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Re: LIN decoding not reliable

Postby ge75el » Wed Jul 29, 2015 10:21 am

Beta version 6.11 works great!
Thank you!
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Re: LIN decoding not reliable

Postby zezephil » Tue Aug 04, 2015 2:44 pm

Thanks Martyn
It seems to work perfectly even the mix Enhanced and Normal checksum frames.
The tool is much more useful like that.
Best regards
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