Re: Rosetta progress report WAS: translator question

["BruceR" <br@xxxxxxxxxxxxxxxx>]

Absolutely!

From:Dave Houston
nobody@xxxxxxxxxxxx

> That's about what I'd expect for a commercial product. If I can bring
> Rosetta in for that price, it should be worth the effort.
>
> "BruceR" <br@xxxxxxxxxxxxxxxx> wrote:
>
>> I deleted the email already but IIRC it was about $150.
>>
>> From:Dave Houston
>> nobody@xxxxxxxxxxxx
>>
>>> It will be interesting to learn the price.
>>>
>>> "BruceR" <br@xxxxxxxxxxxxxxxx> wrote:
>>>
>>>> Sounds excellent! BTW, I received and email from smartproducts
>>>> announcing their Zwave/X10 translator today:
>>>> http://www.smartproducts.us/Zwave.htm  scroll down.
>>>>
>>>> From:Dave Houston
>>>> nobody@xxxxxxxxxxxx
>>>>
>>>>> I have a circuit board layout that I think will work. I'll stare
>>>>> at it for a few more days. I usually find that causes traces and
>>>>> solder pads to move around mysteriously ending up in locations
>>>>> where I don't recall placing them. I'll send it off this weekend
>>>>> and should have it about 2-3 weeks after that. In the meantime I
>>>>> can start on the code using a BX24-AHT board
>>>>>
>>>>> Mouser does not stock any through hole RTC chips so I will use SMT
>>>>> and will forget about using any of the supported serial devices
>>>>> for the RTC backup. This will save a bit of code since there will
>>>>> only be the one chip to interface with. I'll leave the choice of
>>>>> supercapacitor to the user. Mouser stocks 3 that will fit the
>>>>> space I've alloted. They will provide anywhere from 2-3 days to
>>>>> more than a month backup for the RTC chip.
>>>>>
>>>>> I've settled on I²C for the RTC chip and will use the ZX-24's
>>>>> hardware I²C implementation which can run at 410kHz. The I²C bus
>>>>> can support another EEPROM chip should it prove necessary to
>>>>> increase the space for user data.
>>>>>
>>>>> To use Rosetta with any of the controllers that normally use a
>>>>> TW523 (or PL513), the newly liberated TW523 (or PL513) will need
>>>>> to be attached to the other TTL port in order to supply a ZC
>>>>> signal for Rosetta and the controller (e.g. HAI, JDS, Ocelot).
>>>>> The controller, Rosetta and TW523 (or PL513) will share the ZC
>>>>> signal. I think the ZX-24 will be fast enough to have the
>>>>> controller receive pin follow the ZX-24 receive pin which will be
>>>>> listening to the TW523. This way, there will be no delay in the
>>>>> controller receiving what's on the powerline (or at least what
>>>>> the TW523 is willing to divulge on that topic). When the
>>>>> controller transmits, there will be a delay as Rosetta will need
>>>>> to see a complete code before deciding if it needs translation or
>>>>> merely needs to be sent to the powerline via the TW523 (or
>>>>> PL513). This should allow for sending/receiving a mixture of
>>>>> X-10, UPB and 2414S powerline commands
>>>>>
>>>>> Rosetta will also be able to program delays (~2ms minimum,
>>>>> infinite maximum resolution) as needed between signals it sends
>>>>> to the powerline.