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# Msp430 Clock Speed

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Hello there,

*new*

Found out the speed of my clock.

The problem now is I don't think my interrupt is working.

*new*

I am doing a project where I have to read in a square wave and determine the frequency of the wave then output that number.

I was wondering if someone could help me out by telling me what the base clock speed is.  I am programming through energia, idk if that will effect the speed at all, but just in case I am.

Hope someone can help me out

Thanks a bunch!!

if you don't know what energia is energia.nu is where you can find information

My code so far

``` This example code is in the public domain.

*/

//LED PINS
int ledPin0 = 2;// select the pin for the LED
int ledPin1 = 3;
int ledPin2 = 4;
int ledPin3 = 5;
int ledPin4 = 6;

//Inputs
int sensorPin = A5;    // select the input pin for the potentiometer

//Variables
int temp=0;
//int count=0;
int count1=0;
int number=5;
void setup() {
// declare the ledPin as an OUTPUT:
pinMode(ledPin0, OUTPUT);
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
pinMode(ledPin4, OUTPUT);

attachInterrupt(sensorPin,inter,RISING);
}

void loop() {
//Check for Frequency
number = 1000000/count1;

//Make temp Variable to change
temp = number;

//Coverts that number to binary
//Checks if it need to turn on light 5
if(temp >= 16){
digitalWrite(ledPin4, HIGH);
temp = temp - 16;
}
else{
digitalWrite(ledPin4, LOW);
}
//Checks for light 4
if(temp >= 8){
digitalWrite(ledPin3, HIGH);
temp = temp-8;
}
else{
digitalWrite(ledPin3, LOW);
}
//Checks for light 3
if(temp >= 4){
digitalWrite(ledPin2, HIGH);
temp = temp - 4;
}
else{
digitalWrite(ledPin2, LOW);
}
//Checks for light 2
if(temp >= 2){
digitalWrite(ledPin1, HIGH);
}
else{
digitalWrite(ledPin1, LOW);
}
//Checks for light 1
if (number%2 == 1){
digitalWrite(ledPin0, HIGH);
}
else{
digitalWrite(ledPin0, LOW);
}
count1 =0;
}
//Interuppt Routine
void inter()
{
count1=count1++;
}
```
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Thank you for the tip I am using a 1MHz clock.  The problem now is I don't think my interrupt it working correctly.  I am not getting any output to my leds.

PS. I also updated the code, it is now current

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