[avrdude-dev] [bug #30438] efuse bits written as 0 on at90pwmxx parts

[anonymous]

URL:
  <http://savannah.nongnu.org/bugs/?30438>

                 Summary: efuse bits written as 0 on at90pwmxx parts
                 Project: AVR Downloader/UploaDEr
            Submitted by: None
            Submitted on: Wed 14 Jul 2010 03:28:30 AM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Matt Anderson
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any

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Details:

The default value for the efuse write in avrdude.conf is incorrect for the
at90pwm2, at90pwm3, at90pwm2b and at90pwm3b parts. Only the first bit is taken
as input while all others are written as zero. 

This can be particularly destructive on this part since it will program the
bits for default reset behaviour for the PSC's (power stage controllers).
Incorrect reset configuration can be a safety hazard.

The attached patch will correctly take as input bits 0, 1, 2, 4, 5, 6, 7 of
the extended fuse byte for all four parts.



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File Attachments:


-------------------------------------------------------
Date: Wed 14 Jul 2010 03:28:30 AM UTC  Name:
patch-avrdude_conf-add-write-extended-fuse-bits-for-at90pwmxx.diff  Size: 9kB 
 By: None

<http://savannah.nongnu.org/bugs/download.php?file_id=20968>

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