Difference between revisions of "83Plus:BCALLs:8024"

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[[Category:83Plus:BCALLs:By_Name|EraseFlash]]
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[[Category:83Plus:BCALLs:By_Name:Memory|EraseFlash]] [[Category:83Plus:BCALLs:By_Name|EraseFlash]] [[Category:83Plus:BCALLs:By_Address|8024 - EraseFlash]]
[[Category:83Plus:BCALLs:By_Address|8024 - EraseFlash]]
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[[Category:83Plus:BCALLs:By_Name:Memory|EraseFlash]]
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== Synopsis ==
 
== Synopsis ==
 
'''Official Name:''' EraseFlash
 
'''Official Name:''' EraseFlash

Latest revision as of 21:32, 29 March 2005

Synopsis

Official Name: EraseFlash

BCALL Address: 8024

Erase a Flash sector (reset it to all FF's.)

Inputs

  • A = Flash page to erase
  • HL = address to erase

Outputs

  • NZ if the sector could not be erased

Destroys

  • AF

Comments

Flash must be write enabled first.

Note that this will erase an entire sector of Flash, which is usually 64k. It is physically impossible to erase a smaller area, due to the internal structure of the Flash chip used in the 83+.

See also EraseFlashPage.