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Uus Usman
01/14/10 20:01
Read: 256 times
Karawang
Indonesia


 		 #172481 - EEPROM Protection
Hi All

I'm working with SPI EEPROM (32 KB). I want to use software protection mode (using BP0 and BP1 in status register). In my application I write EEPROM every 10S, and using Circular buffer technique. I want to protect the EEPROM and only open the protection when writing to it. I read the data sheet that BP0 and BP1 is non-volatile. In my applucation I should write/change BP0 and BP1 every 10S.

Question:
1. Is there any write cycle (endurance) for BP0 and BP1? Or Is it same with memory endurance of EEPROM itself?

2. Anybody know why in software protection mode we only can select whole memory or upper area of memory? Why we can not select lower memory (ex. 0000 - 4000H)?

Thanks

List of 10 messages in thread
TopicAuthorDate
EEPROM Protection      Uus Usman      01/14/10 20:01      
   No much use        Per Westermark      01/15/10 02:02      
      Think about this ...      Richard Erlacher      01/15/10 10:02      
         Robust better than correct      Per Westermark      01/15/10 10:31      
            You'll get no argument from me      Richard Erlacher      01/15/10 11:01      
               Always a balance between cost and gains/losses      Per Westermark      01/15/10 12:40      
                  No argument here ...      Richard Erlacher      01/15/10 12:53      
            Shielding will not solve?      Kai Klaas      01/15/10 11:58      
               Magnetic fields are tricky to shield from      Per Westermark      01/15/10 13:03      
   Reset performance of micro is important!!!      Kai Klaas      01/15/10 09:28      

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