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need help about eeprom!

 
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PCM programmer



Joined: 06 Sep 2003
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PostPosted: Mon Apr 19, 2010 12:32 pm     Reply with quote
Quote:
How can I write a float value onto eeprom?

See this FAQ article:
http://www.ccsinfo.com/faq.php?page=write_eeprom_not_byte

Quote:
How can I write a value which is bigger than 255 onto eeprom?

Look in these two CCS driver files. They have routines to read/write
various data types to/from eeprom. There are separate routines for
internal or external eeprom:
Quote:

c:\program files\picc\drivers\internal_eeprom.c
c:\program files\picc\drivers\external_eeprom.c

Look for these routines:
Quote:

write_int16_eeprom()
read_int16_eeprom()

write_int16_ext_eeprom()
read_int16_ext_eeprom()


Quote:
what is the placeholder for an "int16" variable?

To display any integer larger than a byte, you use "%lu".
That's for unsigned integers. For signed integers, use "%ld".
memoally



Joined: 25 Jan 2010
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PostPosted: Mon Apr 19, 2010 1:31 pm     Reply with quote
thank you,pcm programmer.your advices helped me.thank you again.
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compiler version: 4.105
pic: 16f876
clock frequency: 4MHz
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