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Jon Titus
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Re: Part II: Picking the Right MCU for Your Application
Jon Titus   1/17/2012 3:29:38 PM
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Q: Jon, are there any good competitors to I2C and SPI coming down the pike? In particular, I find that, if I want many sensors capable of actively interrupting a processor in a deterministic fashion, SPI is too few, regular I2C is passive slave only, and Multi-Master I2C makes me swim through a river of documents, only to not be sure I've found a valid solution. Is there anything new coming along that will eliminate this problem for me?

A:  I'm not aware of any.  Could you use one MCU as a "concentrator" that connects to x sensors and then sends a burst of data to another MCU via serial comms?  You could have several MCU concentrators.  I guess much depends on how many sensors you have and what type of sensors.  Have you looked at the 1-wire protocol from Maxim Integrated Products?



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