The Infineon Dali Arduino board used a similar Infineon XC836 part that
has a UART interface.
Greg
On 4/19/2021 1:35 PM, Alan Carvalho de Assis wrote:
Hi Greg,
This LW14 is interesting! It is possible to buy a module with it to
use the I2C interface with any board (don't need to be an Arduino
form-factor) see:
http://www.saelig.com/product/lw14-02mod.htm
I think the shipping cost will be higher the the product.
BR,
Alan
On 4/19/21, Gregory Nutt <spudan...@gmail.com> wrote:
Hi, Murat,
At 95 euros that could be a turn off for some hobbyist. I looked around
for a low cost solution and found two pretty common solutions.
1. Aruino Dali Shield. There are shields like the daliMaster
https://github.com/davideloba/daliMaster that are reasonably priced.
These have an I2C interface and bridge to the Dali bus via
https://www.codemercs.com/downloads/ledwarrior/LW14_Datasheet.pdf
2. The Mikroe Dali 2 Click is also a good deal:
https://www.mikroe.com/dali-2-click . This uses a GPIO interface
directly to the Dali bus so must be a big-bang interface:
https://download.mikroe.com/documents/add-on-boards/click/dali-2/dali-2-click-schematic-v100.pdf
. But Mikroe does have a library for the Click board so that should not
be too bad.
One thing this says to me is that there needs to be a clear separation
between the application which should be communicating in in high level
commands (telegrams). I am thinking:
- There could be I2C and bit-bang drivers in drivers/dali that would be
capable of sending/receiving one telegram of all supported lengths.
This would export a common driver interface (IOCTLs and read/write
behaviors).
- A higher level, Dali interace in apps/dali that understands command
semantics and protocols. This should work with any lower level
implementation.
I am thinking about buying the Arduino board. I imagine that the I2C
interface is easier to use and the LW14 is well documented. Do you have
any insight into that part?
Greg
On 4/19/2021 2:47 AM, murat tologlu wrote:
Hi Greg,
I am going to order this (
http://www.hasseb.fi/shop2/index.php?route=product/product&product_id=50 )
USB Dali-2 Master unit to start playing and getting familiar with DALI
commands. With this unit I will be able to test our own slave hardware -
software as well. I will share my experiments of course. Unfortunately
this is not my main occupation, I am doing in my spare time, therefore may
go slow.
Best regards,
Murat
On 2021/04/17 19:18:17, Gregory Nutt <spudan...@gmail.com> wrote:
Hi, Murat,
When you decide on your development/test hardware, let us know. Maybe
someone will get inspired to duplicate your setup and help at least with
some testing.
Greg
On 4/17/2021 3:23 AM, murat tologlu wrote:
Dear Greg,
Thank you very much for your kind response, valuable warnings and
suggestions. I see a very good road-map in your answer. On the other
hand I ( probably together with Alan and somebody else interested in
participating us) will appreciate all other comments and suggestions.
Best regards,
Murat
On 2021/04/15 20:40:32, Gregory Nutt <spudan...@gmail.com> wrote:
Before you start writing code, I think you should talk with the group
about the architecture that you would develop.
One of the essential, unbend-able rules is that any new development
must
not add new operating system interfaces that are not standard, not
documented at OpenGroup.org, or are not supported by Linux. New logic
can use, for examples, standard character driver interfaces, a BSD
socket interface, or the file system, but no made up interfaces and no
direct calls into non-standard OS functions.
I don't know much about DALI other than having scanned some websites.
My recommendation is that you consider this as a user-space library
like
apps/modbus, perhaps at apps/dali. The actual, low-level hardware
interface could be implemented, say, via a character driver known to
the
apps/dali logic. The user, application interface could then be purely
of you choosing and exported via a header file at
apps/include/dali/dali.h
The dali drivers would go at nuttx/drivers/dali (probably) and the
interface (IOCTL commands and internal OS setup interfaces) might go
in
nuttx/include/nuttx/drivers/dali.h.
Does that make sense? In any case, let's get concurrence on the
interfaces before starting code development. That will save a lot of
problems down the road and will probably also engage more people, get
a
good review of the design, and might recruit people help you with the
job.
Greg
On 4/15/2021 9:43 AM, murat tologlu wrote:
Hi Alan,
I am glad to hear that you found my proposal as a nice feature for
Nuttx to have. I see you have made a good intruction; let me add
something: Yes, DALI interface standard has DALI and DALI2 versions.
DALI2 version was also extended with a feature set named as D4i.
Therefore we have to cover all. Pysical layer is very simple, we can
use any of ST STEVAL-ILM001V1 and Mikroe DALI 2 Click, or we can make
our own hardware interface for our tests, no problem. Manchester
encoding is also very simple, as the and since the clodck frequency is
very low we can implement it by software with register operations
without using any special counter therefore we can easily obtain
portability of our code.
In this work what I can do is, I can get all the information required
such as IEC62386 standard and others, I can order all the required
hardware, I can setup the hardware and I can do necessary tests. I can
also participate implementing these in Nuttx codebase as much as I can
with your help. So, let's get started, cd nuttxspace/nuttx make
distclean :)
On 2021/04/14 14:11:09, Alan Carvalho de Assis <acas...@gmail.com>
wrote:
Hi Murat,
I think DALI support should be a nice feature to have!
Well, I already search for this protocol some time ago, but I don't
know much about it yet.
The protocol uses Manchester encoding, maybe driver interface should
be implemented using GPIO and freerunning timer. Suggestions are
welcome!
For HW I think we have two options: ST STEVAL-ILM001V1 and Mikroe
DALI 2 Click.
It seams there are two protocol version: DALI and DALI 2. Probably
those DALI dimmers on Aliexpress are pretty old DALI protocol.
BR,
Alan
On 4/14/21, murat toloğlu <mtolo...@hotmail.com> wrote:
I would very much like the DALI interface to be in Nuttx and I would
like to
learn your opinions on this issue. My knowledge and experience in
Nuttx is
not enough to do this work alone, but if we get a few people
together, I can
participate in the development work.
