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- ΘΕΜΑ 1 2015 ΦΕΒ
- a bit 6,7 εξοδος γενικου σκοπου
- b 3,4 εισοδος που δεν προκαλουν διακοπη στον επεξεργαστη
- c 1 2 εισοδος που προκαλουν διακοπη
- a
- 1100 0000 -> C0
- mw 0 0xFFFFF400 0xC0 grammes genikou skopoy
- mw 0 0xFFFFF410 0xC0
- 30
- 34
- SELIDA 8!
- ISODINAMES ENTOLES C
- a
- pioa -> PER = 0xC1
- pioa -> ODR = 0x1 //eisodos
- pioa->PUER = 0x1 // idiaaa
- pioa->IER = 0x1 // AN EIXAME EISODO, INTERRUPT ENABLE
- pioa -> OER = 0xC0
- b
- 3,4
- 0001 1000
- pioa->ODR = 0x18;
- pioa->IDR = 0x18; //interrupt DISABLE
- c
- 1,2
- 0110
- pioa->ODR = 0x06; //EISODO, OER gia e3odo
- pioa->IER = 0x06;
- pioa->PUER = 0x06;
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