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Diffstat (limited to 'libraries/EEPROM/examples/eeprom_reference/eeprom_reference.ino')
| -rw-r--r-- | libraries/EEPROM/examples/eeprom_reference/eeprom_reference.ino | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/libraries/EEPROM/examples/eeprom_reference/eeprom_reference.ino b/libraries/EEPROM/examples/eeprom_reference/eeprom_reference.ino deleted file mode 100644 index bcf84d6..0000000 --- a/libraries/EEPROM/examples/eeprom_reference/eeprom_reference.ino +++ /dev/null @@ -1,93 +0,0 @@ -/*** - eeprom_reference example. - - This example shows how to use the EEPROM - reference object EERef, which allows usage - similar to using a simple char (uint8_t in this case). - - Running this sketch is not necessary, this is - simply highlighting certain programming methods. - - Written by Christopher Andrews 2015 - Released under MIT licence. -***/ - -#include <EEPROM.h> - -void setup() { - - - /*** - To create a reference to an EEPROM cell, simply create an EERef variable. - To let it know which cell you want to reference, you can simply assign the - address when you create it. - ***/ - - EERef ref = 0; - - /*** - An equivalent way is by calling the constructor directly: - EERef ref( 0 ); - ***/ - - /** Using the reference **/ - - /*** - Updating cell data. - To prevent unnecessary wear on the EEPROM cells - this function will only write the data when it - is different to what is already stored. - ***/ - - ref.update( 44 ); //May write 44 if not present. - ref.update( 44 ); //This second call will not write anything. - - /*** - Assign values directly to the EEPROM cell. - - You can use any form of assignment that would otherwise be available - to a standard uint8_t: - - *= - /= - += - -= - ^= - %= - &= - |= - <<= - >>= - - ***/ - - ref = 4; /*** - Take care to notice, this changes the EEPROM cell data, it does not - change the index of the cell referenced by 'ref'. - - Only the initial declaration like 'EERef ref = 0;' will set the address. - Using an assignment anywhere else modifies the referenced cell. - To modify the referenced address after declaring your variable see below. - ***/ - - /*** - Changing the referenced object. - The class has a member named 'index' which is an integer you can modify. - ***/ - - ref.index++; //Move reference to the next cell. - - - /*** - Grouping of references. - - Using EERef objects you can create a contiguous array referencing - non-contiguous EEPROM cells. - ***/ - - EERef array[] = { 0, 20, 40, 60, 80 }; - - -} //End of setup function. - -void loop(){}
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