uartBulkdataReceive

#define HWSERIAL Serial1
#define intArraySize  64

union intU {
  uint16_t i[intArraySize];
  char b[intArraySize * 2];
} data;

static char *pData = data.b;

void setup() {
  Serial.begin(9600);
  HWSERIAL.begin(380000,SERIAL_8N1);
  while (HWSERIAL.available()) {
    HWSERIAL.read();
  }
}

void printIntArray() {
  uint16_t *pDataI = data.i;
  int i = intArraySize;
  while(i--){
    Serial.print(*pDataI++);
    Serial.print(' ');
  }
  Serial.println();
}

void loop() {
  static elapsedMillis eAsk = 0;
  if (eAsk >3) {
    HWSERIAL.clear();
    HWSERIAL.print('S');

    printIntArray();
    //memset(data.i,0,intArraySize);
    //Serial.println(eAsk);

    pData = data.b;
    eAsk = 0;
  }

  if (HWSERIAL.available()) {
    *pData++ = HWSERIAL.read();
  }
}