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[Moved] Reading from another MCU and writing and copying information C++

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sheffladreece

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C++

What I would like to do is make two MCUs (atmega328p) connected via Rx and Tx terminals read each others internal memory and copy the data to its own.

Example:

On MCU 1- Indentity = 123
On MCU 2- Indentity = 456

What I am aiming to achieve is for MCU 1 to read MCU 2s indentity of (456) and copy the code into its own memory. Having the ability to recall that MCU 2s identity = 456 even when the two are not connected.

How would this be coded using C++??
 
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milan.rajik

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MCU1 sends Identity data to MCU2. MCU2 reads it and saves it in its internal eeprom. MCU restarts and reads eeprom and loads the MCU1's Identity data to a variable and this will be available when MCU2 is running. After MCU2 reads and saves MCU1's data then MCU2 can send its data to MCU1.
 

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