# Is it necessary to always check EEPROM is ready before reading/writing?

**URL:** <https://forum.arduino.cc/t/is-it-necessary-to-always-check-eeprom-is-ready-before-reading-writing/204112>\
**Category:** Programming\
**Created:** [January 9, 2014, 2:31pm UTC](https://forum.arduino.cc/t/is-it-necessary-to-always-check-eeprom-is-ready-before-reading-writing/204112 "2014-01-09T14:31:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [January 9, 2014, 3:05pm UTC](https://forum.arduino.cc/t/is-it-necessary-to-always-check-eeprom-is-ready-before-reading-writing/204112/2 "2014-01-09T15:05:34Z")

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> Is this advisable?

Is there a way for the internal EEPROM to not be ready to be read from? Written to? If you can think of a way, you should probably test that it is ready.

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