NCN5120 with konnekting library

[ypkdani]

Hello all,

i'm new here in the forum. I am very interessting the Konnekting library because i'm searching a knx stack open. I have seen here in this forum that some people have implement some development boards with the tansceiver NCN5120. My question is if the konnekting library support this because on github i only see the tpuart files.

Thanks!!

[Eugenius]

Hi ypkdani
all of our boards uses NCN5120/NCN5121/NCN5130 tranceivers.
Our library is fully compatible with it.
tpuart="Twisted Pair UART" and not a Siemens tpuart

Kind regards,
Eugen

[ypkdani]

Hi ypkdani
all of our boards uses NCN5120/NCN5121/NCN5130 tranceivers.
Our library is fully compatible with it.
tpuart="Twisted Pair UART" and not a Siemens tpuart

Kind regards,
Eugen

Hi Eugen and thanks for the reply.

So there is the TPUART Siemens chip that is one thing and the TPUART protocol to communicate between a micro and the chip, right?
But the TPUART chip of Simens use the same commands that the NCNXXX? Or with the konnecting library is supported only the NCNXXX chip?

This because in the file KnxTpUart i read this:

This library supports both TPUART version 1 and 2
// The Siemens KNX TPUART version 1 datasheet is available at

Thanks

[Eugenius]

TPUART is the name of Siemens Chip.
Protocol between Arduino and KNX Transceiver (Siemens, OnSemi, Elmos...) is UART

We supporting both, Siemens and OnSemi. Elmos E981.x3 should be also possible, but not tested yet.

[ypkdani]

TPUART is the name of Siemens Chip.
Protocol between Arduino and KNX Transceiver (Siemens, OnSemi, Elmos...) is UART

We supporting both, Siemens ans OnSemi. Elmos E981.x3 should be possible to, but not tested yet.

Ok, understand. Thanks!

[ypkdani]

Hello all,

another question.... how many eeprom use the stack konnekting (more or less) on an Arduino?

Thanks

[tuxedo]

Depends on the used arduino and the used software-stack for the µC.... On an SAMD21 ist used 0 bytes of EEPROM (because the SAMD has no EEPROM but only flash :-) ).

We highly recommend to use an SAM21G18 powered Arduino board...