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Iron out some problems in jtagmkII #1911

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merged 4 commits into from
Aug 24, 2024
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Fixes #1899 but does much more, see commit messages.

There were several problems with page_erase():
 - Not working on UPDI eeprom/usersig memories: write a page of 0xff instead
 - Read cache not invalidated on page erase
 - PDI apptable and boot memories page erase possibly erases wrong page
There were several problems with page_erase():
  - Read cache not invalidated on writes to boot and apptable
  - PDI apptable and boot memories paged access can get addresses wrong
@stefanrueger stefanrueger merged commit 821d5b0 into avrdudes:main Aug 24, 2024
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@stefanrueger stefanrueger deleted the jtagmkII branch August 24, 2024 18:25
@mcuee mcuee added the enhancement New feature or request label Aug 27, 2024
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Arduino Nano Every EEPROM Regression from avrdude 7.3
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