High speed I2C, do any of the PICAXE chips support this ?

[Buzby]

I've got an I2C device that supports High Speed I2C ( 3.4MHz ). This is a mode that needs a special peripheral in the Master.
Do any of the existing PICAXE chips have this ?

I realise I could trawl through all the base datasheets, but I was hoping someone could let me know.

Cheers,

Buzby

 

[kranenborg]

Hi,
From the 28x2 chip (PIC18F24K22, representing the most advanced type of silicon in the current picaxe line-up) datasheet I understand it that the maximum speed supported is 400kHz.
Regards, Jurjen

 

[Buzby]

Yes, that was my finding also.

It's definitley time for the X3 to be released. There are so many new on-board goodies in the recent pic processors !

 

[kranenborg]

To my knowledge also newer 8-bit PIC devices (that could serve as direct M3/X3 successors, for example the PIC16F17114/15/24/25/44/45 series) still have the 100kHz and 400kHz support, but generally not higher speeds, I guess more advanced PIC platforms are needed in such a case. That said, most not-too-complicated I2C slave devices only have 400kHz as maximum speed that they can support, so ... .

...
It's definitley time for the X3 to be released. There are so many new on-board goodies in the recent pic processors !

Many here agree. A while ago I sent a Direct Message on this forum to Technical/Administrator (see the "Is Picaxe Dead" thread) on how this maybe could be done relatively easily (by keeping current M2/X2 Basic on new silicon). But it is up to them to decide what to do, and who knows what may happen some day!