bugAVR Downloader/UploaDEr - Bugs: bug #28520, Programming with USBasp with low...

 
 

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bug #28520: Programming with USBasp with low clock speed fails

Submitted by:  None
Submitted on:  Fri 08 Jan 2010 09:45:45 AM UTC  
 
Category: NoneSeverity: 3 - Normal
Priority: 5 - NormalItem Group: None
Status: FixedPrivacy: Public
Assigned to: Thomas Fischl <fischl>Originator Name: B. Michler
Originator Email: -unavailable-Open/Closed: Closed
Release: NoneProgrammer hardware: 
Device type: 

Fri 08 Jan 2010 06:36:13 PM UTC, comment #1:

Fixed: Change blocksize depending on sck frequency to avoid usb transmition timeouts.

Thomas Fischl <fischl>
Project MemberIn charge of this item.
Fri 08 Jan 2010 09:45:45 AM UTC, original submission:

Since patch #6484 it is possible to set the ISP clock speed for USBasp.
But programming or reading with low frequencies (-B 1000, -B 2000 respectively 1kHz or 0.5kHz) fails due to USB timeout.
The timeout is currently fixed at 5000ms.
The problem might be solved by setting the timeout dynamically, depending on the clock speed (and buffer size), e.g. like it is done for USBtiny.

Anonymous

 

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Carbon-Copy List
  • -unavailable- added by fischl (Posted a comment)
  • -unavailable- added by joerg_wunsch (Updated the item)
  • -unavailable- added by None (Submitted the item)
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri 08 Jan 2010 06:36:13 PM UTCfischlStatusNone=>Fixed
      Open/ClosedOpen=>Closed
    Fri 08 Jan 2010 09:51:11 AM UTCjoerg_wunschAssigned toNone=>fischl

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