Ultrasound sensor HC-SR04

Convert this Energia code for EK-TM4C123GXL launchpad to Code Composer

#define echoPin PD_0 #define trigPin PC_4 #define BUTTON_PIN PF_0

void setup() { // put your setup code here, to run once: Serial.begin(115200); pinMode(BUTTON_PIN, INPUT_PULLUP);

while (digitalRead(2));

pinMode(echoPin, INPUT); pinMode(trigPin, OUTPUT);

}

void loop() { // put your main code here, to run repeatedly: long duration, distance; digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance = duration/50; if (distance > 255) { distance = 255; } //Serial.write(distance); Serial.println(distance); delay(50); }