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Write to EEPROM
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newguy



Joined: 24 Jun 2004
Posts: 1880

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PostPosted: Sun Jul 16, 2017 9:15 am     Reply with quote
Ttelmah wrote:
...or an FRAM chip).


FRAMs can wear out too - I speak from experience. I think that the failures were partly due to being written so often and partly due to a fault with the memory itself. We changed to a different manufacturer and the problem went away.

MRAM is another option that is supposedly immune (or almost immune) to wearing out.
Ttelmah



Joined: 11 Mar 2010
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PostPosted: Sun Jul 16, 2017 2:46 pm     Reply with quote
Write_float_eeprom, uses write_eeprom.

Understand, write_eeprom, is the 'core' function provided by the compiler, to write one byte to the EEPROM. Any data type larger than a byte has to be transferred using multiple write_eeprom calls. The write_float_eeprom command uses four write_eeprom calls to transfer the float to the EEPROM (since a float is four bytes...).

Newguy, I'd say you had faulty FRAM's. Can happen.
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