8051 external interrupt1

• 외부 인터럽트 #include #define LEDs P0 unsigned char count=0; void ext_int_0 () interrupt 0 { count++; } void ext_int_1 () interrupt 2 { count--; } void main() { P3 |= 0x0c; // Configure the INT0 & INT1 pins as Inputs EX0 = 1; // Enable INT0 EX1 = 1; // Enable INT1 EA = 1; // Enable Global Interrupt bit while(1) { LEDs = count; } } 공학속으로/마이컴 2020. 3. 4.