Arduino Code to connect CyberVoice and PC

Connect CyberVoice and PC

/* 此Arduino Code適用在連接CyberVoice與PC
 * 注意用此連接方式無法使用VP的錄音, 其餘功能皆正常
 * 
 * 連接方式：
 *   Arduino            CyberVoice
 *     5V     <----->     USB5V
 *     GND    <----->      GND
 *    Pin.10  <----->     PA.8
 *    Pin.11  <----->     PA.9

*/

#include <SoftwareSerial.h>

#define CYB_MODEL                                     ('8')   //Update VR model
#define CYB_FW                                        ('9')   //Update VR model
#define CYB_PCM                                       ('H')   //Update PCM model
#define CYB_GET_CONNECT_DEVICE                        ('W')   //Return "CyberVoice" or "Arduino"

void mySerialDefault(void);
void drain_buf(void);

SoftwareSerial mySerial(10, 11); // RX, TX

int tmp;
char buf[8] = {0};
unsigned long previous_time, present_time;

static int nIdxCmd = 0;
static char cmdBuf[4] = {0};

void setup() {
  Serial.begin(57600);
  while(!Serial);
  mySerial.begin(57600);
  while(!mySerial);  
}

void loop() {
  if(mySerial.available())
      Serial.write(mySerial.read());
}

void serialEvent(void)
{
    if(Serial.available()) 
    {
      cmdBuf[nIdxCmd++] = Serial.read();
      if (nIdxCmd == 4)
      {
        if(strncmp(cmdBuf, "CYB", 3) != 0)
        {
          memmove(cmdBuf, cmdBuf + 1, 3); 
          nIdxCmd = 3;
        }
        else
        {
          if((cmdBuf[3] == CYB_MODEL) || (cmdBuf[3] == CYB_FW) || (cmdBuf[3] == CYB_PCM))
          {
            mySerial.write("CYBo"); 
            mySerial.flush();
            while(!mySerial.available());
            mySerial.read();  // Don't pass to pc

            mySerial.end();
            mySerial.begin(115200);
            //************************************************//
            while(!mySerial);
            delay(500);
            
            mySerial.write(cmdBuf, 4);  
            if(cmdBuf[3] == CYB_PCM)
              delay(1000*18);
            else
              delay(1000);
            Serial.write(0);

            for(int x = 0; x < 64; x++)
              mySerial.read();
            int flag = 0;
            while(1)
            {
              if(Serial.available()) 
              {
                flag = 1;
                previous_time = millis();
                mySerial.write(Serial.read());
              }
              else if(!flag)
                previous_time = millis();

              present_time = millis();
              if(((present_time - previous_time) > 2000) && flag)
              {
                mySerialDefault();
                delay(300);
                mySerial.write("CYBY");
                while(!mySerial.available());
                Serial.write(mySerial.read());
                Serial.flush();
                flag = 0;
                break;
              }
            }
          }
          else if(cmdBuf[3] == CYB_GET_CONNECT_DEVICE)
          {
            Serial.write("\r\nArduino\r\n");
          }
          else
          {
            mySerial.flush();
            mySerial.write(cmdBuf, 4); 
            mySerial.flush();
          }
          // Some more else if statements are listed here …..
          nIdxCmd = 0;
        }
      }
    }
}

void mySerialDefault()
{
  mySerial.write("CYBn");
  mySerial.flush();
  Serial.flush();
  mySerial.read();

  mySerial.end();
  mySerial.begin(57600);
  while(!mySerial);
}

void drain_buf()
{
  for(int i = 0; i < 12; i++)
  {
    Serial.read();
    mySerial.read();
  }
}