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von pavkriz
11. Jul 2019, 17:41
Forum: Geräte Entwicklung
Thema: KNX-compatible device based on STM32G071 MCU with Arduino flavour
Antworten: 0
Zugriffe: 1612

KNX-compatible device based on STM32G071 MCU with Arduino flavour

Hello, I would like to announce my new device originally based on selfbus, which I've ported to STM32 platform. I've designed a custom STM32-based board but one can use a STM's Nucleo development board as well. Bus-coupling interface is quite simple because of STM32's built-in DAC (threshold voltage...
von pavkriz
25. Aug 2018, 21:47
Forum: Geräte Entwicklung
Thema: Simpler bus coupling design
Antworten: 2
Zugriffe: 2112

Re: Simpler bus coupling design

I have two ideas to simplify TX and RX: 1) Use STCS05A https://www.st.com/resource/en/datasheet/stcs05a.pdf as 0,4A current-limiting TX switch. So the TX would be STCS05A (1€) + 4148 diode + 7V5 zener diode (dropping bus DC voltage by 7V, as specified for TP1-256 Transmitter). 2) Use MCU with integr...
von pavkriz
11. Aug 2018, 10:53
Forum: Geräte Entwicklung
Thema: Simpler bus coupling design
Antworten: 2
Zugriffe: 2112

Simpler bus coupling design

Hello, I'm new to this project and I like it very much. I would like to design a simpler (may be not necessary as much KNX compliant?) transceiver design. Is the circuit explained more in detail somewhere? If not, I put some questions here: 1. What is the purpose of the 150mH inductor? Does it limit...