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Multimaster I2C - Can i connect the SDA/SCK of two Atmegas t

 
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P_Santos

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Joined: 07 Jul 2011
Posts: 110

PostPosted: Mon Sep 24, 2018 12:58 pm    Post subject: Multimaster I2C - Can i connect the SDA/SCK of two Atmegas t Reply with quote

Hi,

I need to share a I2C eeprom with 2 Atmegas. Can i connect the SDA/SCK of both Atmegas together
I know that can use a analog switch like CD4066 to handle that, but it not possible make changes on the pcb's
Arbitation it's not problem, i can always before use the I2C bus, look if the other Atmega is using the bus and wait if it is,
my question is more electrical

Thanks for any Tip
Regards
Pedro

(BASCOM-AVR version : 2.0.8.1 )
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