Stellaris / Tiva C - Testing all USARTs using Energia IDE

test_all_usarts.c

// Stellaris / Tiva C - Testing all USARTs  

void setup()
{
  pinMode(40,1);
  
  Serial.begin(115200);
  Serial1.begin(115200);
  Serial1.setPins(UART1_PORTB); //trick to active USART1 without overlap USART4
  Serial2.begin(115200);
  Serial3.begin(115200);
  Serial4.begin(115200);
  Serial5.begin(115200);
  Serial6.begin(115200);
  Serial7.begin(115200);

}

int i=0;
void loop()
{
  
Serial.print(i); Serial.println(" Hello world! 0 ");
Serial1.print(i); Serial1.println(" Hello world! 1");
Serial2.print(i); Serial2.println(" Hello world! 2");
Serial3.print(i); Serial3.println(" Hello world! 3");
Serial4.print(i); Serial4.println(" Hello world! 4");
Serial5.print(i); Serial5.println(" Hello world! 5");
Serial6.print(i); Serial6.println(" Hello world! 6");
Serial7.print(i); Serial7.println(" Hello world! 7");

  i++;
  if(i%2){ analogWrite(40,1); }
  else { analogWrite(40,0); }
  delay(100);
}

Please test Rx also. :)