Added stop function to DC Motor Demo

Added stop function to DC Motor Demo and COMPB interrupt(just for demonstration) to Timer project.

diff --git a/Examples/DC_motor_and_servo/DC_motor_and_servo.ino b/Examples/DC_motor_and_servo/DC_motor_and_servo.ino
index 70011fc9526684cd065509b06625e99a322dc7ad..97fe86b0468fecd901124f32789b2d52214ac6a3 100644 (file)
--- a/Examples/DC_motor_and_servo/DC_motor_and_servo.ino
+++ b/Examples/DC_motor_and_servo/DC_motor_and_servo.ino
@@ -17,32 +17,34 @@ void turn_right(uint8_t speed);
 
 void setup()
 {
-    pinMode(A1, OUTPUT);
-    pinMode(A2, OUTPUT);
-    pinMode(EN_L, OUTPUT);
-    digitalWrite(A1, LOW);
-    digitalWrite(A2, LOW);
-    digitalWrite(EN_L, HIGH);
-    pinMode(A3, OUTPUT);
-    pinMode(A4, OUTPUT);
-    pinMode(EN_R, OUTPUT);
-    digitalWrite(A3, LOW);
-    digitalWrite(A4, LOW);
-    digitalWrite(EN_R, HIGH);
+  pinMode(A1, OUTPUT);
+  pinMode(A2, OUTPUT);
+  pinMode(EN_L, OUTPUT);
+  digitalWrite(A1, LOW);
+  digitalWrite(A2, LOW);
+  digitalWrite(EN_L, HIGH);
   
-    aservo.attach(SERVO_PIN);
+  pinMode(A3, OUTPUT);
+  pinMode(A4, OUTPUT);
+  pinMode(EN_R, OUTPUT);
+  digitalWrite(A3, LOW);
+  digitalWrite(A4, LOW);
+  digitalWrite(EN_R, HIGH);
+
+  aservo.attach(SERVO_PIN);
 }
 
 void loop()
 {
-    /*
-  digitalWrite(A1, HIGH);
+  /*
+    digitalWrite(A1, HIGH);
     analogWrite(A2, 128);
     digitalWrite(EN_L, HIGH);
-  
-    aservo.write(90);
-    */
-  
+  */
+
+  //aservo.write(90);
+
+  /*
     for (uint8_t i = 0; i < 4; i++)
     {
         forward(255);
@@ -52,36 +54,45 @@ void loop()
     }
     digitalWrite(EN_L, LOW);
     digitalWrite(EN_R, LOW);
+  */
 }
 
 void forward(uint8_t speed)
 {
-    analogWrite(A1, speed);
-    digitalWrite(A2, LOW);
-    analogWrite(A3, speed);
-    digitalWrite(A4, LOW);  
+  analogWrite(A1, speed);
+  digitalWrite(A2, LOW);
+  analogWrite(A3, speed);
+  digitalWrite(A4, LOW);
 }
 
 void reverse(uint8_t speed)
 {
-    analogWrite(A2, speed);
-    digitalWrite(A1, LOW);
-    analogWrite(A4, speed);
-    digitalWrite(A3, LOW);  
+  digitalWrite(A1, LOW);
+  analogWrite(A2, speed);
+  digitalWrite(A3, LOW);
+  analogWrite(A4, speed);
 }
 
 void turn_left(uint8_t speed)
 {
-    analogWrite(A2, speed);
-    digitalWrite(A1, LOW);
-    analogWrite(A3, speed);
-    digialWrite(A4, LOW);  
+  digitalWrite(A1, LOW);
+  analogWrite(A2, speed);
+  analogWrite(A3, speed);
+  digitalWrite(A4, LOW);
 }
 
 void turn_right(uint8_t speed)
 {
-    analogWrite(A1, speed);
-    digitalWrite(A2, LOW);
-    analogWrite(A4, speed);
-    digitalWrite(A3, LOW);  
+  analogWrite(A1, speed);
+  digitalWrite(A2, LOW);
+  digitalWrite(A3, LOW);
+  analogWrite(A4, speed);
+}
+
+void stop_motors()
+{
+  digitalWrite(A1, LOW);
+  digitalWrite(A2, LOW);
+  digitalWrite(A3, LOW);
+  digitalWrite(A4, LOW);
 }

diff --git a/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino b/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino
index a592e20cfdf94e0c390870ccde8c878c22091e52..efa21189289b447c02f21172e18a05eb06d3601c 100644 (file)
--- a/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino
+++ b/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino
@@ -5,7 +5,7 @@ void setup() {
   // Stop reception of interrupts
   noInterrupts(); //cli();
 
-  // Set PB1 to be an output (Pin9 Arduino UNO)
+  // Set PB1 to be an output (Pin-9 Arduino UNO)
   DDRB |= (1 << PB1);
   
   // Clear Timer/Counter Control Registers
@@ -15,6 +15,7 @@ void setup() {
   
   // Set non-inverting mode - Table 15-3 (page 108)
   TCCR1A |= (1 << COM1A1);
+  TCCR1A |= (1 << COM1B1);
   
   // Set Fast-PWM Mode (Mode 14) - Table 15-5 (page 109)
   TCCR1A |= (1 << WGM11);
@@ -27,9 +28,11 @@ void setup() {
   // Set PWM frequency/top value - Output PWM 10kHz
   ICR1 = 199;   // Fclk_io / (Fout * Prescaler) - 1
   OCR1A = 100;  // Output OC1A will be ON for [OCR1A/(ICR1+1)]% of the time -> 100/(199+1) = 50%
+  OCR1B = 50;
   
   // Enable compare match interrupt
   TIMSK1 |= (1 << OCIE1A);
+  TIMSK1 |= (1 << OCIE1B);
   TIMSK1 |= (1 << TOIE1);
   
   // Set prescaler to 8 and starts PWM
@@ -48,6 +51,11 @@ ISR(TIMER1_COMPA_vect) {
   digitalWrite(13, LOW);
 }
 
+//Timer1 Compare Match Interrupt turns OFF pin 13 (LED)
+ISR(TIMER1_COMPB_vect) {
+  //digitalWrite(13, LOW);
+}
+
 //Timer1 Overflow Interrupt turns ON pin 13 (LED)
 ISR(TIMER1_OVF_vect) {
   digitalWrite(13, HIGH);