3 ms·

Ciao Zaarn, that is cool compliments, which sort of encoding you chose?

• zaarn 8y ago
  Simple NRZ for both clock and data. Data integrity is provided by parity bits in various fields and CRC32 for the payload. I use token bus for media access control since it's fairly simple to implement and I don't need jam detection in any components. Token passing enables a far more simpler software for simply being a passive client (ie, a sensor doesn't need to be able to control the bus, it only needs to respond while someone else is controlling the bus) and the active masters (which can cleanly pass control of the bus). I don't mean any of this as offense to PJON either, it's an amazing protocol, the problems I have aren't solved by any product on the market. It's also a good engineering challenge.
  • gioscarab 8y ago
    Why not RTZ?
    • zaarn 8y ago
      NRZ is easier to do on most devices since you simply put a high on the bus to send a one and a low on the bus to send zero, esp. if you use something like an Attiny. Also means I can basically plug-and-play it into the i2c connections I have setup.