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stk500v2 bootloader corrupts data when reading EEPROM #23

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mlasevich opened this issue Jul 27, 2018 · 5 comments · May be fixed by #24
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stk500v2 bootloader corrupts data when reading EEPROM #23

mlasevich opened this issue Jul 27, 2018 · 5 comments · May be fixed by #24
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@mlasevich
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READ_EEPROM command treats each address as 16bit instead of 8bit, as a result, the output of read EEPROM is corrupt, giving every other byte.
@mlasevich mlasevich changed the title stkv500v2 bootloader corrupts data when reading EEPROM stk500v2 bootloader corrupts data when reading EEPROM Jul 27, 2018
@mlasevich mlasevich mentioned this issue Jul 27, 2018
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@mcuee
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mcuee commented Jun 3, 2022

This may be related. It does not seem to be an avrdude issue but rather the issue of the bootloader.

@mcuee mcuee mentioned this issue Jun 3, 2022
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mcuee commented Jun 12, 2022 •
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I can confirm that #24 fixed this issue.

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mcuee commented Jun 9, 2023

For those who want to use an Arduino Core with the fix, you can use this one.
https://github.com/MCUdude/MegaCore

It has incorported #24 fix here.
MCUdude/MegaCore@eba4f4a

@mcuee mcuee mentioned this issue Jun 10, 2023
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mcuee commented Jun 10, 2023

The zip file here contains this EEPROM fix and a few other fixes.

@per1234 per1234 linked a pull request Jun 11, 2023 that will close this issue
Fix stk500v2 READ_EEPROM to properly read EEPROM #24
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@per1234 per1234 self-assigned this Jun 11, 2023
@per1234 per1234 added the bug label Jun 11, 2023
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per1234 commented Jun 11, 2023

If I understand correctly, #129 is a duplicate of this issue. Since #129 has a bit more information, I'll close this one in favor of the other.

@per1234 per1234 closed this as not planned Won't fix, can't repro, duplicate, stale Jun 11, 2023
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Fix stk500v2 READ_EEPROM to properly read EEPROM mlasevich/ArduinoCore-avr
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@mcuee @mlasevich @per1234