. That is
domain-specific information that the user must know indep[endently
(though we'endeavored to make function pretty transparent, and must
data is returned as straight ascii characters.)
Paul Alfille
On 1/31/07, Matthew Percival [EMAIL PROTECTED] wrote:
G'Day
G'Day,
I have been trying to create a owlua using owcapi as a basis. As far
as this is concerned, it has been a success --- I have an exact
equivalent to owcapi that can now be used from Lua. I just cannot make
any use of it! I can use the OW_init() and OW_finish() equivalent
functions
G'Day,
I am looking to create a Lua interface to owlib --- effectively owlua.
I would need to do this as a simple C library that makes the appropriate
calls, however, I have not been able to find any documentation that
would help with this. owcapi seems like it would be something similar
G'Day,
I'll have to look closely at your code, but it sounds like the code for the
OMAP
is flushing the bus after writing and not reading the bus response to writing.
That could not be the case: it never gets up to writing. I have
followed the code, and now identified that any
G'Day,
As to the specifics of the function called when catting
2D.serial/memory/, perhaps it is just my misunderstanding, but it
seems to me like calling BUS_send_data() is not the best thing to
do. BUS_send_data(x,3,y) sends three bits, then reads three bits and
compares them.
G'Day,
I am currently trying to weed out why I still cannot read from my
DS2431 device, and in my testing I stumbled across a minor bug in
BUS_send_data().
When I `cat 2D.serial/memory', it does not work, so I checked `cat
statistics/errors/BUS_*' and noticed that
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
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;
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.
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.
If
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 in
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
G'Day,
Thanks for your replies: they are extremely helpful!
4. Almost all the devices are supported, you don't need anything extra. This
includes temperature, memory, switches, voltage, current, timers, counters and
some LCD and humidity 3rd party devices.
The particular
G'Day,
It shouldn't be this difficult.
What platform are you running?
I am not using a particularly standard environment. Well, I am
building it on standard desktop, but the target machine is an OMAP5912
--- owfs/owhttpd will run on an ARM. The board has hardware support for
G'Day,
So your download doesn't include relevant files like
modules/owlib/src/include/*.h ?
Not all of them, but several; module/swig/ is mostly empty too.
Perhaps a CVS pull?
I used CVS to make the difference: I figured the rest should be right,
so by adding the missing
G'Day,
Thanks for all the help: I now seem to have the basics sorted out!
Firstly, with FUSE, I never would have guessed it was just a blank
line: I was sure there would be at least one other module to be loaded.
Secondly, to paths, by making --prefix=/usr/local and installing it
16 matches
Mail list logo
