bugAVR C Runtime Library - Bugs: bug #23703, eeprom_write_ functions...

 
 

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bug #23703: eeprom_write_ functions optimisation

Submitter:  Jan Waclawek <wek>
Submitted:  Wed 25 Jun 2008 10:24:19 AM UTC
   
 
Category:  Feature Request Severity:  2 - Minor
Priority:  3 - Low Item Group:  libc code
Status:  Fixed Assigned to:  dmix
Percent Complete:  100% Open/Closed:  Closed
Release:  Any Fixed Release:  None

Sun 21 Jun 2009 07:04:28 AM UTC, comment #3: 

Fixed in 1_6 branch: a set of 'update' functions is added.

Dmitry Xmelkov <dmix>
Group administrator
Sat 06 Jun 2009 01:27:33 AM UTC, comment #2: 

Fixed in HEAD branch: a set of 'update' functions is added.

Dmitry Xmelkov <dmix>
Group administrator
Tue 06 Jan 2009 11:26:15 AM UTC, comment #1: 

Good idea.  Note, this must a set of new functions (update),
the eeprom_write are saved as is.  Simetimes, it is needed
to recharge gates.
The scanning direction of multibyte update functions is from
up to down address.

Dmitry Xmelkov <dmix>
Group administrator
Wed 25 Jun 2008 10:24:19 AM UTC, original submission:  

The eeprom_write_ functions (as defined by eeprom.h) can be optimised by not writing those bytes which which are equal to the current value.

As I am not proficient enough with avr-libc I would like to ask some those who are to make the necessary (and presumably quite simple) patch.

Jan Waclawek <wek>

 

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Depends on the following items: None found

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Carbon-Copy List
  • -email is unavailable- added by dmix (Posted a comment)
  • -email is unavailable- added by arcanum (Updated the item)
  • -email is unavailable- added by wek (Submitted the item)
  • -email is unavailable- added by wek
  •  

    Follow 10 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2009-06-21 dmix Open/ClosedOpen Closed
    2009-06-06 dmix StatusIn Progress Fixed
        Percent Complete90% 100%
    2009-01-06 dmix Item GroupNone libc code
        StatusNone In Progress
        Percent Complete0% 90%
        Assigned toNone dmix
    2008-08-11 arcanum Severity3 - Normal 2 - Minor
        Priority5 - Normal 3 - Low
    2008-06-25 wek Carbon-Copy- Added wek

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