Kalpesh Pandit

Internal EEPROM Corruption in MC9S12XDP512

Discussion created by Kalpesh Pandit on Dec 18, 2008
Latest reply on Dec 19, 2008 by kef
Hey guys
We are using MC9S12XDP512 controller for our existing product development.
The internal EEPROM of the controllers is getting corrupted permenantly in some cases.
It is not becoming default even after reprogramming the controller.
It works fine and we are able to read and write properly for some time.
We are using 190kHz frequency for EEPROM.
Also we are erasing the sectors before writing into EEPROM.
The product is in the last stage of release and suddenly we are facing such critical problem
Can anybody please tell me what are the areas which I should look in for finding the solution.
What can be the reasons for permenant corruption of EEPROM from hardware as well as software design point of view???
Please reply ASAP.