Is there a good reason why a micro can't emulate a serial bus master?
On Tue, Jan 28, 2014 at 12:12 PM, Paul Alfille <paul.alfi...@gmail.com>wrote:
> I take it your microprocessor doesn't run linux. In that case, you want it
> to look like a serial bus master.
>
> There are 3 serial bus masters that I can remember off hand: the DS9097U,
> the Link and the HA5. The later 2 use a much simplified serial data stream
> (simple ascii), and I think are both available in chip format for fairly
> cheap. The radio part would be transparent.
>
> http://www.ibuttonlink.com/products/linkoem
>
> http://www.embeddeddatasystems.com/HA7S--ASCII-TTL-1-Wire-Host-Adapter-SIP_p_23.html
>
> (I should add that the serial port can synthesize a bus master -- the
> passive adapter) but I wouldn't recommend that remotely. Code for DS9097U
> emulation is available -- Maxim never considered restricting masters, only
> slaves).
>
> Paul Alfille
>
>
>
> On Mon, Jan 27, 2014 at 4:33 PM, Colin Reese <colin.re...@gmail.com>wrote:
>
>> It will look like:
>>
>> 1Wire network (DS18B20, DS2408, etc) -- uC (ATTiny, ATmega) GPIO,
>> OneWire, DallasTemperature, SoftwareSerial libraries -- XBee/Zigbee send --
>> XBee/Zigbee receive -- RPi
>>
>> At the moment the serial output from the uC is just code I write that
>> says 'hey, here the temperature is'. If I can process it into a owserver
>> friendly format at either end, that would be great. Otherwise, I'll just
>> have to process it into a database using pyserial. Not a big deal, but not
>> as elegant as owfs and owserver.
>>
>> I'd happily put a DS2483 at the 1wire end if I thought it would get me
>> anywhere, but I can't see that it will.
>>
>>
>> On Mon, Jan 27, 2014 at 1:20 PM, Roberto Spadim <robe...@spadim.com.br>wrote:
>>
>>> ? i don't understand....
>>> check:
>>>
>>>
>>> ethernet (wifi ethernet, ethernet)
>>> wireless (wifi ethernet, bluetooth, zb)
>>> serial (rs232,rs485,rs422)
>>> ow - serial-ow converters (ds2480b), microcontroler bus (on/off gpio),
>>> i2c-ow converters (ds2482)
>>>
>>> what part you need?
>>>
>>>
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>>
>>
>>
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>
>
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