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Save global variables at Arduino flash
February 9, 2020
7:21 am
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Muzikansky
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December 11, 2019
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Hi

I am using PID algorithm to control temperature by Arduino Uno. To achieve best performance I am changing original PID parameters (there are P, I and D global variables) by host computer serial communication. How can I save (by host computer serial command) updated P, I and D global variables at Arduino flash? 

February 11, 2020
12:46 am
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Steffan
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You can use the Arduino EEPROM.  Take a look at the EEPROM Read Write.vi shipping example.

February 11, 2020
7:51 am
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Muzikansky
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I saw EEPROM Read Write.vi example. This example saves data at specific address. How can I define software global parameters with some specific address?

February 11, 2020
7:35 pm
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Steffan
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If you need to save the values to non-volatile memory, then you would have to use EEPROM.  If you just want to save in volatile memory, you can just use LabVIEW global or local variables, which will use RAM on the Arduino.  There is also an example for reading and writing data to program memory (Flash) but writing can only be done at compile time.

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