protocol/usb_hid/USB_Host_Shield_2.0/examples/pl2303/pl2303_gprs_terminal/pl2303_gprs_terminal.ino

   1 /* Arduino terminal for PL2303 USB to serial converter and DealeXtreme GPRS modem. */
   2 /* USB support */
   3 #include <usbhub.h>
   4 /* CDC support */
   5 #include <cdcacm.h>
   6 #include <cdcprolific.h>
   7
   8 // Satisfy the IDE, which needs to see the include statment in the ino too.
   9 #ifdef dobogusinclude
  10 #include <spi4teensy3.h>
  11 #include <SPI.h>
  12 #endif
  13
  14 class PLAsyncOper : public CDCAsyncOper
  15 {
  16 public:
  17     uint8_t OnInit(ACM *pacm);
  18 };
  19
  20 uint8_t PLAsyncOper::OnInit(ACM *pacm)
  21 {
  22     uint8_t rcode;
  23
  24     // Set DTR = 1
  25     rcode = pacm->SetControlLineState(1);
  26
  27     if (rcode)
  28     {
  29         ErrorMessage<uint8_t>(PSTR("SetControlLineState"), rcode);
  30         return rcode;
  31     }
  32
  33     LINE_CODING lc;
  34     //lc.dwDTERate      = 9600;
  35     lc.dwDTERate = 115200;
  36     lc.bCharFormat      = 0;
  37     lc.bParityType      = 0;
  38     lc.bDataBits        = 8;
  39
  40     rcode = pacm->SetLineCoding(&lc);
  41
  42     if (rcode)
  43         ErrorMessage<uint8_t>(PSTR("SetLineCoding"), rcode);
  44
  45     return rcode;
  46 }
  47 USB     Usb;
  48 //USBHub     Hub(&Usb);
  49 PLAsyncOper  AsyncOper;
  50 PL2303       Pl(&Usb, &AsyncOper);
  51
  52 void setup()
  53 {
  54   Serial.begin( 115200 );
  55 #if !defined(__MIPSEL__)
  56   while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
  57 #endif
  58   Serial.println("Start");
  59
  60   if (Usb.Init() == -1)
  61       Serial.println("OSCOKIRQ failed to assert");
  62
  63   delay( 200 );
  64 }
  65
  66 void loop()
  67 {
  68     Usb.Task();
  69
  70     if( Usb.getUsbTaskState() == USB_STATE_RUNNING )
  71     {
  72        uint8_t rcode;
  73
  74        /* reading the keyboard */
  75        if(Serial.available()) {
  76          uint8_t data= Serial.read();
  77
  78          /* sending to the phone */
  79          rcode = Pl.SndData(1, &data);
  80          if (rcode)
  81             ErrorMessage<uint8_t>(PSTR("SndData"), rcode);
  82        }//if(Serial.available()...
  83
  84         /* reading the converter */
  85         /* buffer size must be greater or equal to max.packet size */
  86         /* it it set to 64 (largest possible max.packet size) here, can be tuned down
  87         for particular endpoint */
  88         uint8_t  buf[64];
  89         uint16_t rcvd = 64;
  90         rcode = Pl.RcvData(&rcvd, buf);
  91          if (rcode && rcode != hrNAK)
  92            ErrorMessage<uint8_t>(PSTR("Ret"), rcode);
  93
  94            if( rcvd ) { //more than zero bytes received
  95              for(uint16_t i=0; i < rcvd; i++ ) {
  96                Serial.print((char)buf[i]); //printing on the screen
  97              }
  98            }//if( rcvd ...
  99     }//if( Usb.getUsbTaskState() == USB_STATE_RUNNING..
 100 }
 101