Linux IEEE 802.15.4 and 6LoWPAN development
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From: Alexander Aring <alex.aring@gmail.com>
To: Baptiste Clenet <bapclenet@gmail.com>
Cc: linux-wpan@vger.kernel.org
Subject: Re: What is SAM value? "ieee802154 phy0 wpan0: SAM value 0x3 not supported"
Date: Fri, 24 Jul 2015 15:07:48 +0200	[thread overview]
Message-ID: <20150724130747.GA6051@omega> (raw)
In-Reply-To: <CAPpUg6O9weo-qwLUWqhUJc4e9ZMK2-6UKfSU4wvB7byXhELYOA@mail.gmail.com>

On Fri, Jul 24, 2015 at 02:53:52PM +0200, Baptiste Clenet wrote:
...
> 
> Yes if SAC = 1, SAM should be 0 I agree.
> 
> Is that somehow possible that I send ihpc of 7b39 (taken at the end of
> lowpan_header_compress) and I receive and iphc of 7bf9 (taken at the
> begginning of lowpan_header_decompress) every time??
>

So far I know that is not possible. I think you need to debug it, do you
have maybe some kind of monitor interface to see what on the air?

When this happens randomly I had sometimes some corrupted data when the
spi clock is too high, but I think you use the bitbang gpio spi driver
now, or? Then I think the spi clock isn't the issue.

- Alex

  reply	other threads:[~2015-07-24 13:07 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-24  7:56 What is SAM value? "ieee802154 phy0 wpan0: SAM value 0x3 not supported" Baptiste Clenet
2015-07-24  8:31 ` Alexander Aring
2015-07-24  8:47   ` Baptiste Clenet
2015-07-24  9:02     ` Baptiste Clenet
2015-07-24  9:45       ` Baptiste Clenet
2015-07-24  9:53         ` Alexander Aring
2015-07-24  9:48       ` Alexander Aring
2015-07-24  9:56         ` Baptiste Clenet
2015-07-24 10:18           ` Alexander Aring
2015-07-24 12:03             ` Baptiste Clenet
2015-07-24 12:13               ` Alexander Aring
2015-07-24 12:53                 ` Baptiste Clenet
2015-07-24 13:07                   ` Alexander Aring [this message]
2015-07-24 14:45                     ` Baptiste Clenet
2015-07-24 14:51                       ` Stefan Schmidt
2015-07-24 15:14                         ` Baptiste Clenet
2015-07-24 16:24                           ` Stefan Schmidt
2015-07-26 21:03                             ` Baptiste Clenet
2015-07-27  8:03                           ` Baptiste Clenet
2015-07-27  8:06                             ` Baptiste Clenet
2015-07-27  8:32                             ` Alexander Aring
2015-07-27  8:58                               ` Baptiste Clenet
2015-07-27  9:05                                 ` Baptiste Clenet
2015-07-27  9:30                                   ` Alexander Aring
2015-07-27 10:08                                     ` Baptiste Clenet
2015-07-27 10:21                                       ` Alexander Aring
2015-07-27 10:31                                         ` Baptiste Clenet
2015-07-27 10:38                                           ` Alexander Aring
2015-07-27 10:52                                             ` Baptiste Clenet
2015-07-27 11:30                                               ` Alexander Aring
2015-07-27 12:29                                                 ` Baptiste Clenet
2015-07-27 12:42                                                   ` Alexander Aring
2015-07-27 12:45                                                     ` Baptiste Clenet
2015-07-27 15:13                                                       ` Baptiste Clenet
2015-07-27 15:55                                                         ` Baptiste Clenet
2015-07-27 16:35                                                           ` Alexander Aring
2015-07-27 17:28                                                           ` Alexander Aring
2015-07-27 17:43                                                             ` Baptiste Clenet
2015-07-27 19:10                                                               ` Alexander Aring

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