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Michael2016-06-13 22:36:03
Arduino
Michael, 2016-06-13 22:36:03

How to connect multiple microcontrollers to one quartz?

The question is in the title. And immediately - yes. It is more or less googled, but I did not find a direct scheme. (I admit, I really don’t know how to search) A
forum topic where something like this:
forum.cxem.net/index.php?showtopic=23251
quartz is hung on xtal1 and xtal2 of one MK, and the signal goes to xtal2 of the first through the buffer to the rest.
And the actual question. And what can be used as a buffer, given that there are 2 atmega and 4 attini on the board at a short distance?

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3 answer(s)
A
Armenian Radio, 2016-06-13
@Inkvizitor66

The AVR has a CLK0 fuse bit that will cause the controller to clock one of the pins. Read datasheets.
As a trigger, you need something with TTLSH inputs, for example 74HC1G14

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Ocelot, 2016-06-14
@Ocelot

2 atmega and 4 attini

Offtopic, but what kind of device is this? Maybe you should take one powerful controller instead of a bunch of small ones?

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focs, 2016-06-14
@focs

Maybe it will be easier to make an external clock generator?

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