AVR Downloader/UploaDEr - Bugs: bug #61169, Bad EEPROM read on mega2560 R3...
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bug #61169: Bad EEPROM read on mega2560 R3 Arduino board
Submitter: | None | ||
Submitted: | Thu 16 Sep 2021 02:53:37 PM UTC | ||
Category: | None | Severity: | 3 - Normal |
Priority: | 5 - Normal | Item Group: | None |
Status: | None | Privacy: | Public |
Assigned to: | None | Originator Name: | Shane |
Originator Email: | -email is unavailable- | Open/Closed: | Open |
Release: | 6.3 | Programmer hardware: | wiring/COM |
Device type: |
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Depends on the following items: None found
Items that depend on this one: None found
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I have a mega2560 R3 arduino board. I created a simple sketch from the Arduino IDE from file->Examples->EEPROM->eeprom_clear and then modified it to write 0x00112233445566778899aabbccddeeff repeating to the eeprom memory. After writing out these values and then using avrdude to read them back I get 0x00112233445566770011223344556677 instead. I have a custom programmer that read back the expected values correctly.
The avrdude command I am using for reading out the eeprom is:
avrdude -p atmega2560 -c wiring -P COM4 -b115200 -U eeprom:r:dump.bin