URL:
<http://savannah.nongnu.org/bugs/?30756>
Summary: When setting SUT to 64ms on XMEGA, avrdude doesn't
read device signature
Project: AVR Downloader/UploaDEr
Submitted by: zsimon
Submitted on: gio 12 ago 2010 10:18:06 GMT
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name: Simone Zamboni
Originator Email:
Open/Closed: Open
Discussion Lock: Any
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Details:
I'm using avrdude 5.10 with AVRISP mkII on USB.
In my last project I set up device SUT (start up time) to 64ms to let the
power supply settle. I found that invoking avrdude it reports that the device
signature is 0x000000. I can bypass the error with -F option but I think that
the problem could be easy to fix inserting a 100ms delay before reading the
device after it has been reset.
Device SUT is available for XMEGA devices in the fuse bits.
P.S. With SUT of 4ms, avrdude reads the device signature correctly.
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