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

 
 

bug #23703: eeprom_write_ functions optimisation

Submitted by:  Jan Waclawek <wek>
Submitted on:  Wed 25 Jun 2008 10:24:19 AM UTC  
 
Category: Feature RequestSeverity: 2 - Minor
Priority: 3 - LowItem Group: libc code
Status: FixedPercent Complete: 100%
Assigned to: Dmitry Xmelkov <dmix>Open/Closed: Closed
Release: AnyFixed Release: None

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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>
Project AdministratorIn charge of this item.
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>
Project AdministratorIn charge of this item.
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>
Project AdministratorIn charge of this item.
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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Carbon-Copy List
  • -unavailable- added by dmix (Posted a comment)
  • -unavailable- added by arcanum (Updated the item)
  • -unavailable- added by wek (Submitted the item)
  • -unavailable- added by wek
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    Follow 10 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 21 Jun 2009 07:04:28 AM UTCdmixOpen/ClosedOpen=>Closed
    Sat 06 Jun 2009 01:27:33 AM UTCdmixStatusIn Progress=>Fixed
      Percent Complete90%=>100%
    Tue 06 Jan 2009 11:26:15 AM UTCdmixItem GroupNone=>libc code
      StatusNone=>In Progress
      Percent Complete0%=>90%
      Assigned toNone=>dmix
    Mon 11 Aug 2008 02:49:19 AM UTCarcanumSeverity3 - Normal=>2 - Minor
      Priority5 - Normal=>3 - Low
    Wed 25 Jun 2008 10:24:19 AM UTCwekCarbon-Copy-=>Added wek

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