- AT91SAM7S64: flash programming
- Posted by Roman Mashak on June 4th, 2008
Hello,
Reading the SAM7 datasheet's chapter on embedded flash I ran across this
snippet:
"Access to the Flash in read mode is permitted when a Lock or Unlock command
is performed
....
Access to the Flash in read mode is permitted when a Set, Clear or Get
General-purpose NVM bit cmmand is performed"
Does this imply that:
1) C-functions implementing Lock/Unlock/Set/Clear do not need to be run from
RAM (in terms of IAR such functions should not be prefixed with "__ramfunc"
keyword)?
2) interrupts can be left untouched (i.e. no need to disable interrupts
flash before operation and enable them back after) ?
Thanks.
--
Best regards, Roman
- Posted by Boudewijn Dijkstra on June 5th, 2008
Op Wed, 04 Jun 2008 17:42:57 +0200 schreef Roman Mashak <mrv@tusur.ru>:
3) Access to the Flash in read mode is permitted regardless of the setting
of the Lock or NVM bits.
--
Gemaakt met Opera's revolutionaire e-mailprogramma:
http://www.opera.com/mail/
- Announce: Flash Menu Factory: Create web menus in Flash without programming. (Graphics & Designing) by info@epinoisis.com
- MAC7111 Flash Programming (Microprocessors) by Simon Bosworth
- Read from flash with AT91SAM7S64 (Microprocessors) by Andy
- Programming Flash AM29F200B (Microprocessors) by chomiczuk81
- H8S/2314 flash programming (Microprocessors) by almeida.luciano@gmail.com

