Lost EEPROM settings

[StYa_3323981]

Has anyone ever seen data that was previously written to the EEPROM disappear? I'm seeing an issue on about 10% of our devices using the CY8C5668AXI-LP010 PSoC have randomly lost settings the next time they are powered on.

[GeonaP_26]

Please confirm whether you acquire the temperature before EEPROM write functions. For more details please refer to section: Working with Flash and EEPROM of PSoC 5LP System Reference Guide

[Bob_Marlowe]

Make darn sure that there is no power loss during the time the eeprom is written to.

Bob

[StYa_3323981]

Thanks for the info! I was able to verify that we are calling CySetTemp() before writing to the EEPROM. The only thing I have not been able to verify yet is whether or not the device is losing power in the middle of a write.