AVR Downloader/UploaDEr - Bugs: bug #13125, ATMega169 efuse reserved bit
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bug #13125: ATMega169 efuse reserved bit
Submitter: | None | ||
Submitted: | Thu 19 May 2005 03:50:05 PM UTC | ||
Category: | None | Severity: | 3 - Normal |
Priority: | 5 - Normal | Item Group: | None |
Status: | Fixed | Privacy: | Public |
Assigned to: | bdean | Originator Name: | Christian Zietz |
Originator Email: | -email is unavailable- | Open/Closed: | Closed |
Release: | None | Programmer hardware: | |
Device type: |
Wed 14 Sep 2005 02:16:26 AM UTC, comment #1: |
Brian Dean <bdean> |
Thu 19 May 2005 03:50:05 PM UTC, original submission:
According to the datasheet the least significant bit of the extended fuse byte of an ATMega169 is reserved and should not be programmed. In the corresponding write command in avrdude.conf this bit is marked as "ignore" ("x"). This causes the bit to be set to zero and thus the reserved fuse to be programmed. Atmel confirmed that the programming of this bit affects the RESET pin so that further SPI programming is not possible. I had to switch to JTAG to reset this fuse bit.
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Anonymous |
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Depends on the following items: None found
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Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2005-09-14 | bdean | Status | None | Fixed | |
Assigned to | None | bdean | |||
Originator Email | x | ||||
Open/Closed | Open | Closed |
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Corresponding source code
Changed 'x' specification (ignore) to 'i' (input) allowing the developer to preserve or change the bit as desired.