Keeping data in order

[arloedx]

Question: Whether I am communicating in RS232, RS485, or I2C between a master and a slave both of which have a buffer to store data, how can I ensure that the data from buffer[0] of the slave ends up in buffer[0] of the master and eliminate the possibility of say, the contents of buffer[1] in the slave ending up in buffer[0] of the master?

[SherpaDoug]

High level things like that are entirely up to the programmer. How about sending a buffer number as an early byte of the data?
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