Writing to non-volatile memory?[stares into space]

[HankMcSpank]

They say the first sign of madness is talking to yourself....

ok, seek and you shall find as the saying goes, and it should be no surprise that DT has a hand in the solution...

http://www.picbasic.co.uk/forum/showthread.php?t=2444

ok, out the blocks I'm getting an error (this'll be the plea for help bit!)

pattern var byte
@  EE_var  _pattern, byte, 1  ; Link an EE variable to it.

(the variable I want to track & store has the name 'pattern')

gives a compilation error....

"Symbol not previously defined (byte)" for it seems the following bolded asm line....

EE_assign  macro   Name , Value, Size               
  local Assign_Done
  nolist
    if ((EE_PTR + Size) >= EEPROM_SIZE )      list
        error "EEPROM is Full, Could not Fit", Name
    endif

Any ideas?

The PIC I'm using is a PIC16f1824

[Darrel Taylor]

Woohoo, another EE_vars user.
That's an old one.

Use Uppercase for the "Size".

@  EE_var  _pattern, BYTE, 1  ; Link an EE variable to it.

MPASM is case sensitive.

[Darrel Taylor]

I should probably mention that you can do the same thing with ...

pattern  var byte : EE_pattern DATA 1             : READ EE_pattern, pattern
MyWord   var WORD : EE_MyWord  DATA WORD 12345    : READ EE_MyWord, WORD MyWord
MyLong   var LONG : EE_MyLong  DATA LONG 123456789: READ EE_MyLong, LONG MyLong

; to save the variables to EEPROM ...
WRITE EE_pattern, pattern
WRITE EE_MyWord, WORD MyWord
WRITE EE_MyLong, LONG MyLong

No include needed.
The only difference is that you can't restore to the original "default" value like EE_vars.

This stuff wasn't available in 2005

[HankMcSpank]

I should probably mention that you can do the same thing with ...

pattern  var byte : EE_pattern DATA 1             : READ EE_pattern, pattern
MyWord   var WORD : EE_MyWord  DATA WORD 12345    : READ EE_MyWord, WORD MyWord
MyLong   var LONG : EE_MyLong  DATA LONG 123456789: READ EE_MyLong, LONG MyLong

; to save the variables to EEPROM ...
WRITE EE_pattern, pattern
WRITE EE_MyWord, WORD MyWord
WRITE EE_MyLong, LONG MyLong

No include needed.
The only difference is that you can't restore to the original "default" value like EE_vars.

This stuff wasn't available in 2005

Many thanks Darrel...I shall try this tonight. As it goes, I don't need to restore the original default so that should be dandy.