write to eeprom

[Thorsten]

Hi,

inside my project i want to write some values to eeprom. My question is, if it´s better to disable interupts bevor writing or it´s not necessary.

Thanks

Thorsten

[Humberto]

There is not any general rule for this.
It is imposed by the priority of the various tasks running in a project, and depends of what kind of data you need to write in EEPROM.

If it is a data that is being stored at regular intervals, it doesn't matter if it is done a few milliseconds later.
If it is a data that you need to store in EEPROM after an unwanted power-fail, you do not have anything more important to do that - first of all - to disable ALL the interrupts and begin the writing procedure before the shut-off of the residual power.


Humberto