change rush 00 folder name

rush00/interrupts.c

@@ -0,0 +1,66 @@
+#include "rush_header.h"
+
+volatile Role role = WAITING;
+
+void setup_button_interrupt() {										// interruption SW1 (PD2)
+    EICRA |= (1 << ISC01);      									// trigger on falling edge for INT0
+    EIMSK |= (1 << INT0);       									// Activate INT0
+
+    SREG |= (1 << SREG_I);  
+}
+
+ISR(INT0_vect) {													// interruption SW1 (PD2)
+	if (!TEST_PIN(BUTTON1)) {
+    	_delay_ms(30);
+		flash_led(D4);
+		if (role == MASTER) {
+			// write_one_byte_data(0x01);
+			read_one_byte_data();
+		} else if (role == SLAVE) {
+			// PORTD &= ~(1 << PD2); // Pull PD2 low (active LOW signal)
+    		// _delay_ms(10);        // Give master time to catch the signal
+    		// PORTD |= (1 << PD2);  // Reset line HIGH
+		}
+	}
+}
+
+ISR(TWI_vect) {														// interruption slave receive data, Table 12-1 : 25, 2-wire Serial Interface
+    uint8_t status = TWSR & MASK_WITHOUT_LAST_3;
+
+    switch (status) {
+
+        // Slave Receiver cases
+        case TW_SR_SLA_ACK:											// SLA+W received, ACK sent
+            // flash_led(D4);
+            turn_on_led_2_light();
+            break;
+        case TW_SR_DATA_ACK:										// data received, ACK sent
+            if (role == WAITING) {
+                role = SLAVE;
+            }
+            received_data = TWDR;                                   // store received data
+            break;
+        case TW_SR_STOP:											// STOP or REPEATED START
+            break;
+        case TW_SR_DATA_NACK:										// data received but slave answered NACK (no ACK an means end of communication or error)
+            break;
+
+        // Slave Transmitter cases
+        case TW_ST_SLA_ACK:											// SLA+R received, ACK sent - First byte to be transmitted
+            flash_led(D4);
+            TWDR = 0x10;											// send first data byte
+            break;
+        case TW_ST_DATA_ACK:										// data sent, ACK received - Additional bytes can be sent
+            TWDR = 0x10;											// send next data byte
+            break;
+        case TW_ST_DATA_NACK:										// data sent, NACK received - No more data requested
+            break;													// master doesn't want more data
+        case TW_ST_LAST_DATA:										// last data byte sent, ACK received
+			break;													// All data sent
+
+        default:
+            break;
+    }
+
+    TWCR = (1 << TWINT) | (1 << TWEN) | (1 << TWEA) | (1 << TWIE);	// Clear interrupt flag and enable next transfer
+}