G'Day,
> > > 2. How big a send/recieve buffer does the adapter have?
> >
> > At the moment, I am buffering everything in kernel, and sending it one
> > byte (or bit, if performing Search ROM) at a time. I am considering
> > changing that in future, but at the moment there is no hard limit.
>
On Sunday 17 July 2005 08:45 pm, Matthew Percival wrote:
> G'Day,
>
> > Nice work. I've been going through your code.
>
> Thanks: I appreciate it!
>
> > One basic question: What exactly is this "adapter" and which architecture
> > supports it?
>
> It is not a true adaptor: Texas Instrum
G'Day,
> Nice work. I've been going through your code.
Thanks: I appreciate it!
> One basic question: What exactly is this "adapter" and which architecture
> supports it?
It is not a true adaptor: Texas Instruments' OMAP development boards
have hardware support for 1-Wire. I r
Nice work. I've been going through your code.
One basic question: What exactly is this "adapter" and which architecture
supports it?
Specific comments:
1. in ow_omap.c : OMAP_reset, are we missing something? I see a loop, with
fsync, but no body.
2. How big a send/recieve buffer does the adapt
G'Day,
> No, you got it all correct. There are a set of bit-level commands, and then
> some
> higher level composite commands (byte or more).
Thanks for checking those out for me: I believe everything is just
about right now. I was also having some trouble with support for the
DS2431, b
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Matthew
Percival
Sent: Tuesday, July 12, 2005 11:11 PM
To: owfs-developers@lists.sourceforge.net
Subject: Re: [Owfs-developers] Adding another means of accessing
devices(ie not serial, USB, etc)...
G
G'Day,
> And the search algorithm:
> http://www.maxim-ix.com/appnots.cfm/appnote_number/187
Thanks to this document, I was able to eventually sort out the problem.
There were lots of small differences here and there between the way the
serial device works, and the way the OMAP bus works;
On Tue, 2005-07-12 at 09:32 +1000, Matthew Percival wrote:
> G'Day,
>
> > As I understand you have copied ow_ds9097.c and made your changes to it.
> > DS9097_reset() send a resetbyte 0xF0 and read a byte. If received byte
> > is 0xF0, no devices where found on the bus and it's therefor no use
>
I seem to have completely missed something very important.
> I decided to trace back, and it seems FS_realdir() is called by
> FS_dir_seek(), however that function is never called either; nor is
> FS_dir(). If I continue to follow the path, FS_dir() seems to only
> called from owfs
G'Day,
> As I understand you have copied ow_ds9097.c and made your changes to it.
> DS9097_reset() send a resetbyte 0xF0 and read a byte. If received byte
> is 0xF0, no devices where found on the bus and it's therefor no use
> to search for more devices in DS9097_next_both() where it exits later.
On Mon, 2005-07-11 at 16:19 +1000, Matthew Percival wrote:
> G'Day,
>
> I have added some fprintf()s to the code, and noticed that
> OMAP_select() and OMAP_next_both() are never called; nor is
> CheckPresence_low(). No errors are recorded anywhere, however, and
> pn->si->AnyDevices is bei
G'Day,
> I doubt that you could skip the omap_reset() function since it's used
> to address a specific device or the branch on the DS2490. (and reset the
> 1-wire bus which more devices need)
I have added an OMAP_reset() now; it is fairly simple, but there does
not seem to be much to do.
On Sunday 10 July 2005 10:52 pm, Matthew Percival wrote:
> G'Day,
>
> Thanks for the suggestions: it has made things a lot easier to work
> through! I had actually skipped those files (ow_ds9097.c, etc) assuming
> they were 1-Wire devices, rather than adaptors --- I did not think I
> would
On Mon, 2005-07-11 at 04:52, Matthew Percival wrote:
> G'Day,
>
> > > I have now just finished writing a kernel module which handles the
> > > OMAP's hardware support for 1-Wire, and have used a test program to
> > > interact with the DS2431. All that remains to do is have a nice, user
> > > pr
G'Day,
> > I have now just finished writing a kernel module which handles the
> > OMAP's hardware support for 1-Wire, and have used a test program to
> > interact with the DS2431. All that remains to do is have a nice, user
> > program that can handle interactions with any number of any kind
On Thursday 07 July 2005 09:50 pm, Matthew Percival wrote:
> G'Day,
>
> I tried using owfs on my OMAP board, but even after I added basic
> support for the DS2431, it did not list the device in /mnt/1wire --- I
> am assuming that this is largely because of the unusual environment that
> I am
G'Day,
I tried using owfs on my OMAP board, but even after I added basic
support for the DS2431, it did not list the device in /mnt/1wire --- I
am assuming that this is largely because of the unusual environment that
I am operating under. Given the report that I had a bad adaptor, this
as
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