External interrupts of a microcontroller | Microcontrollers from scratch # 14 ΡΠΊΠ°ΡΠ°ΡΡ Π² Ρ ΠΎΡΠΎΡΠ΅ΠΌ ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅
External interrupts of a microcontroller | Microcontrollers from scratch # 14
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Π‘ΠΊΠ°ΡΠ°ΡΡ Π²ΠΈΠ΄Π΅ΠΎ Ρ ΡΡΡΠ± ΠΏΠΎ ΡΡΡΠ»ΠΊΠ΅ ΠΈΠ»ΠΈ ΡΠΌΠΎΡΡΠ΅ΡΡ Π±Π΅Π· Π±Π»ΠΎΠΊΠΈΡΠΎΠ²ΠΎΠΊ Π½Π° ΡΠ°ΠΉΡΠ΅: External interrupts of a microcontroller | Microcontrollers from scratch # 14 Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ 4k
Π£ Π½Π°Ρ Π²Ρ ΠΌΠΎΠΆΠ΅ΡΠ΅ ΠΏΠΎΡΠΌΠΎΡΡΠ΅ΡΡ Π±Π΅ΡΠΏΠ»Π°ΡΠ½ΠΎ External interrupts of a microcontroller | Microcontrollers from scratch # 14 ΠΈΠ»ΠΈ ΡΠΊΠ°ΡΠ°ΡΡ Π² ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠΌ Π΄ΠΎΡΡΡΠΏΠ½ΠΎΠΌ ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅, Π²ΠΈΠ΄Π΅ΠΎ ΠΊΠΎΡΠΎΡΠΎΠ΅ Π±ΡΠ»ΠΎ Π·Π°Π³ΡΡΠΆΠ΅Π½ΠΎ Π½Π° ΡΡΡΠ±. ΠΠ»Ρ Π·Π°Π³ΡΡΠ·ΠΊΠΈ Π²ΡΠ±Π΅ΡΠΈΡΠ΅ Π²Π°ΡΠΈΠ°Π½Ρ ΠΈΠ· ΡΠΎΡΠΌΡ Π½ΠΈΠΆΠ΅:
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ΠΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ ΠΏΠΎ Π·Π°Π³ΡΡΠ·ΠΊΠ΅:
Π‘ΠΊΠ°ΡΠ°ΡΡ mp3 Ρ ΡΡΡΠ±Π° ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΠΌ ΡΠ°ΠΉΠ»ΠΎΠΌ. ΠΠ΅ΡΠΏΠ»Π°ΡΠ½ΡΠΉ ΡΠΈΠ½Π³ΡΠΎΠ½ External interrupts of a microcontroller | Microcontrollers from scratch # 14 Π² ΡΠΎΡΠΌΠ°ΡΠ΅ MP3:
ΠΡΠ»ΠΈ ΠΊΠ½ΠΎΠΏΠΊΠΈ ΡΠΊΠ°ΡΠΈΠ²Π°Π½ΠΈΡ Π½Π΅
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ΠΠΠΠΠΠ’Π ΠΠΠΠ‘Π¬ ΠΈΠ»ΠΈ ΠΎΠ±Π½ΠΎΠ²ΠΈΡΠ΅ ΡΡΡΠ°Π½ΠΈΡΡ
ΠΡΠ»ΠΈ Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡΡ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ ΡΠΎ ΡΠΊΠ°ΡΠΈΠ²Π°Π½ΠΈΠ΅ΠΌ Π²ΠΈΠ΄Π΅ΠΎ, ΠΏΠΎΠΆΠ°Π»ΡΠΉΡΡΠ° Π½Π°ΠΏΠΈΡΠΈΡΠ΅ Π² ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΡ ΠΏΠΎ Π°Π΄ΡΠ΅ΡΡ Π²Π½ΠΈΠ·Ρ
ΡΡΡΠ°Π½ΠΈΡΡ.
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External interrupts of a microcontroller | Microcontrollers from scratch # 14
External interrupts of ATmega8 MK can only operate on certain outputs, denoted INT0, INT1 and RESET. To reset the microcontroller, it is necessary to apply a low potential to the RESET terminal for a short time. This external interrupt operates by default and requires no presets. External interrupts on the outputs INT0 and INT1 should be pre-initialized and configured. They can be called in the following cases: on the front, on the decline, when changing the logical levels and at a low logical level. In addition, you must first connect the interrupts.h interrupt library, then you must allow global interrupts using the SREG status register or the sei () command. The remaining settings are performed by writing to the corresponding bits of the MCUCR and GICR registers.
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