Real Time Clock Board

[Audronic]

The Note said


""  Read the Manual before powering up.
Caution live battery, don't lay the board on another or Metal Surface.. ""


Thanks      Ray

[dxs]

Thanks Audronic I'm glad you received it fine, right at the other site of the earth!


BTW I have one very last CPC RTC remaining so if anyone want it get it touch, otherwise I'll ebay it (33.9 including shipping in France, 36.9 Europe, other request quote - not that much more).

[TotO]

Why ebay it? You finaly made that for money? 
You should keep it if a guy come late here, or simply if needed to replace a defective one (after sales service). No ?

[Poliander]

BTW I have one very last CPC RTC remaining so if anyone want it get it touch, otherwise I'll ebay it (33.9 including shipping in France, 36.9 Europe, other request quote - not that much more).

I'll donate 10,00 € if you give it to @Prodatron

[CraigsBar]

I'll donate 10,00 € if you give it to @Prodatron

I'll match that if @Prodatron confirms he will add support for this card to Symbos

[dxs]

Ok 
If a third 10e volunteer show up I'll send it to him!

(TotO I waited for everyone to receive it's card, and ebaying something doesn't mean necessarily ripping people off. Just reaching peole who don't come here)

[TotO]

OK, send it @Prodatron. 

[dxs]

Did anybody told him about this, or we just make this appear in his mailbox out of the blue ? 

[Poliander]

That's out of the blue  My 10 € are already on its way to you @dxs

[radu14m]

i"m waiting for the next batch to order one


when is the next batch planned ?

[CraigsBar]

That's out of the blue  My 10 € are already on its way to you @dxs

Mine too.


This is crowd funding at it's best

[CraigsBar]

Did anybody told him about this, or we just make this appear in his mailbox out of the blue ? 

the number of @Prodatron tags in this thread it certainly should not be out of the blue LOL

[dxs]

@Poliander I got your crowd funding participation  thank you!
@CraigsBar let me know if you need my Paypal id again.
@TotO Pm sent!

Believe it or not some people actually enjoy off-line holidays 

[CraigsBar]

@Poliander I got your crowd funding participation  thank you!
@CraigsBar let me know if you need my Paypal id again.
@TotO Pm sent!

Believe it or not some people actually enjoy off-line holidays 

I sent it already. Can you double check you PP I used the same address as the payment for my 2 RTC boards

[TotO]

Me too... 

[dxs]

I got all the payements, @CraigsBar I didn't receive the email as usual but the money did arrive on the account so everything is fine.

Shipment will take place shortly I'll keep you crowd-funders posted !

[Prodatron]

Thanks so much guys!!  I didn't have a look at this thread for a while, so I was very surprised when I got DXS pm today.
Wow, thank you Poliander, Craigsbar, TotO and DXS! Of course now I will add Dobbertin RTC support in SymbOS
DXS, I will send you a pm now!

[Trebmint]

Oh crowdfunding for a CPC, this is good Well done guys

[dxs]

Prodatron's gift has just been sent to Germany this evening !

If further software support sparks more interest in this board a new batch could  be relaunched, for at least 10 pieces.

So anybody willing to buy one in the future just drop me a PM or post here, I'll write your name down.

[TFM]

Well, I would take a second one. But people who don't have one at all should always be served first. 

[Prodatron]

One little question, was the original Dobbertin Smartwatch always placed at ROM 2 and/or ROM 114 as well?

[TFM]

One little question, was the original Dobbertin Smartwatch always placed at ROM 2 and/or ROM 114 as well?

The origninal SmartWatch could be placed at position 1-15. most people had it at 14 or 15. The ROM software and the CP/M tools checked that range of ROM numbers.


So basically it can be everywhere.

[dirtybb]

Prodatron's gift has just been sent to Germany this evening !

If further software support sparks more interest in this board a new batch could  be relaunched, for at least 10 pieces.

So anybody willing to buy one in the future just drop me a PM or post here, I'll write your name down.

As my PM from yesterday, i'm Interested in one.


Regards,

[TFM]

If somebody out there (f.e. @Prodatron ) needs code to read / write the Dobbertin RTC just let me know and I will post code here.


To mention one piftall here: The code to access the watch MUST be in RAM, it can not work from ROM.

[Prodatron]

After studying the documentation and the time ROM itself I came to this routines for reading and writing:

Code Select Expand


;### DSWRED -> read 8 bytes from the Dobbertin Smart Watch
;### Input      HL=destination address
;###            ROM is already selected
;### Destroyed  AF,BC,HL
dswred  ld b,8
        di
dswred1 ld c,128
dswred2 ld a,(#c004)
        rra
        rr c
        jr nc,dswred2
        ld (hl),c
        inc hl
        djnz dswred1
        ei
        ret

;### DSWWRT -> write 8 bytes to the Dobbertin Smart Watch
;### Input      DE=source address
;###            ROM is already selected
;### Destroyed  AF,B,DE,HL
dswwrt  di
        ld a,(#c004)
        ld b,8
dswwrt1 ld a,(de)
        ld h,#c0
        scf
dswwrt2 rr a
        jr z,dswwrt3
        ld l,0
        rl l
        ld l,(hl)
        jr dswwrt2
dswwrt3 inc de
        djnz dswwrt1
        ei
        ret


There is additional stuff to do like resetting the recognition patterns and sending them again, but these should be the both core routines. I will see soon, if it works