I have already read your initial posts.

But have you read what I did write?

Do you need to keep the received data in case you don't get a match?

In case you do keep a match, then your program already have the reference table available so any further processing could use that table instead.

That was one thing I wrote.

The other think I wrote was that you can mix and match any way you like in your loop. You just have to adapt the specific instructions that reads data from table 1 and the specific instructions that reads data from table 2 based on what memory regions you have the two tables in. If, that is, you do need to store the serial data even if you don't get a match.

So if we ignore the repetitions you had in your last posts. What new information or new questions do you have? Was there something you didn't understand? Is there something new you want to complement your earlier posts with? Are there any special needs that you haven't brought up yet?