Может кто подсказать, что за волшебная 6- байтная последывательность отключающая SDP в флэш памяти ATMEL
Цитата с даташита:
Software Data Protection (SDP): This protection mechanism is the only one that may be optionally activated or disabled under software control. When it is activated, the Flash memory requires a specific 3-byte temporary unlock write sequence prior to each sector load cycle to enable programming. If a sector load cycle is executed ithout the 3-byte write sequence, no information will be altered and the device will lock out all activity, (reads and writes), for 10 ms. Activation is accomplished by the first occurrence of the specific 3-byte temporary unlock write sequence. Thereafter, all sector writes must be preceded by the same 3-byte write sequence. SDP can be explicitly disabled by a specific 6-byte write sequence
О самой волшебной последовательности в документации Атмел ничего не нашел.
Это не то что вы подумали ...