18F4550 USB Bağlantı Sorunu

[_MeRKeZ_]

Merhaba arkadaşlar,

Bilgisayar ile pic arasında usb haberleşme gerçekleşecek bir uygulama geliştiriyorum. Uygulamanın benzetimi (simülasyonu) başarılı olsa da devre üzerinde çalışmıyor. USB'yi bilgisayara bağladığımda kendisi sürücüyü yüklüyor ve işlem başarılı iletisini gönderiyor ancak buna rağmen işlemler gerçekleştirilmiyor. Kabloyu çıkarıp taktığımda ise sürücüde sorun gözüküyor. Bu sefer cihazı hiçbir şekilde tanımıyor.

#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN
#use delay(clock=48000000)

//20 Mhz'lik osilatör kullanıyorum

#define USB_HID_DEVICE     TRUE             
#define USB_EP1_TX_ENABLE  USB_ENABLE_INTERRUPT 
#define USB_EP1_RX_ENABLE  USB_ENABLE_INTERRUPT    
#define USB_EP1_TX_SIZE    64                 
#define USB_EP1_RX_SIZE    64 

#include <pic18_usb.h>     
#include <USB_Driver.h>   
#include <usb.c>

Bu konuda ne yapmamı tavsiye edersiniz?

Teşekkürler

[baran123]

Arayüz olarak ne kullanıyorsunuz ? Kodların tamamını görme imkanımız var mı ?

[_MeRKeZ_]

C# kullanıyorum.

Kodlarda aşağıdaki düzenlemeleri yaparak sorunu çözdüm

#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN 
#USE DELAY(CLOCK=20000000)

Şu an ise veri iletiminde sorun yaşıyorum

C# kodu

void veriGonder()
{
if ((denetim== 1) && (usbHidPort1.SpecifiedDevice != null))
                {
                    denetim= 0;
                    int uzunluk= usbHidPort1.SpecifiedDevice.OutputReportLength;
                    byte[] gidenVeri = new byte[uzunluk+ 1];
                    
                    gidenVeri[0] = 0;
                    gidenVeri[1] = veri;
              
                    usbHidPort1.SpecifiedDevice.SendData(gidenVeri);
                }
}


private void usbHidPort1_OnDataRecieved(object sender, DataRecievedEventArgs args)
        {
           
                int uzunluk= usbHidPort1.SpecifiedDevice.OutputReportLength;
                byte[] gelenVeri= new byte[uzunluk + 1];
                gelenVeri = args.data;
                denetim= gelenVeri [2];  //Veri iletimi başarılıysa 1 verisi alınıyor
            }
        }

CCS C kodu

#include <18F4550.h>

#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN 
#USE DELAY(CLOCK=20000000) 

#define USB_HID_DEVICE     TRUE             
#define USB_EP1_TX_ENABLE  USB_ENABLE_INTERRUPT 
#define USB_EP1_RX_ENABLE  USB_ENABLE_INTERRUPT    
#define USB_EP1_TX_SIZE    64                 
#define USB_EP1_RX_SIZE    64 

#include <pic18_usb.h>     
#include <USB_Driver.h>   
#include <usb.c>

void main()
{
     set_tris_d(0x00);
     output_d(0x00);

     usb_init();                      
     usb_task();                    
     usb_wait_for_enumeration();   
  
   while(1)
   {  
     while(usb_enumerated())
      {

          if (usb_kbhit(1))
          {
                usb_get_packet(1, gelenDizi, 64); // veri alınıyor
                gelenVeri= gelenDizi[0];
                output_d(gelenVeri);

                gidenVeri[0] = 1;  // işlem başarılı ve 1 verisi gönderiliyor.
                usb_put_packet(1, gidenVeri,64, USB_DTS_TOGGLE);
                
          }
      }
}

Yaptığım gözlemler sonucunda, sadece ilk verinin yollandığını diğerlerinin iletilmediğini fark ettim. Bu durumu düzeltmek için ne yapabilirim?

[baran123]

Sigorta ayarları çok problem cıkartabiliyor o yüzden dikkat etmeniz gerekli.Aşağıda ki ayarları deneyebilirsiniz tabi bu ayarlar gerçek devre için proteusda denemek istiyorsanız işlemciye sağ tıklayıp oraya mhz olarak 48 yazmanız gerekir.Ayrıca VUSB bacagındaki 470nF kondansatörüde unutmayın.c# arayüzünüde umng.dll ile yapmanızda fayda var

#include <18F4550.h>
#device ADC=10
#fuses HSPLL,NOMCLR,NOWDT,NOPROTECT,NOLVP,NODEBUG,PLL5,CPUDIV1,VREGEN,NOPBADEN

#use delay(clock=48MHz, crystal=20MHz, USB_FULL)

#define USB_HID_DEVICE     TRUE             
#define USB_EP1_TX_ENABLE  USB_ENABLE_INTERRUPT  
#define USB_EP1_RX_ENABLE  USB_ENABLE_INTERRUPT    
#define USB_EP1_TX_SIZE    64  
#define USB_EP1_RX_SIZE    64   

#include <pic18_usb.h>     
#include <USB_Konfigurasyon.h>
#include <usb.c>    

#define UcNokta1      1

USB_Konfigurasyon.h

                                                     
#IFNDEF __USB_DESCRIPTORS__
#DEFINE __USB_DESCRIPTORS__

#include <usb.h>

     const char USB_CLASS_SPECIFIC_DESC[] = {
      6, 0, 255,    // Usage Page = Vendor Defined
      9, 1,            // Usage = IO device
      0xa1, 1,       // Collection = Application
      0x19, 0,        // Usage minimum
      0x29, 800,        // Usage maximum

      0x15, 0x00,        // Logical minimum (-128)
      0x25, 0xFF,        // Logical maximum (127)

      0x75, 8,        // Report size = 8 (bits)
      0x95, 64,        // Report count = 16 bits (2 bytes)
      0x81, 2,        // Input (Data, Var, Abs)
      0x19, 0,        // Usage minimum
      0x29, 800,        // Usage maximum
      0x75, 8,        // Report size = 8 (bits)
      0x95, 64,        // Report count = 16 bits (2 bytes)
      0x91, 2,        // Output (Data, Var, Abs)
      0xc0            // End Collection
   };


   //if a class has an extra descriptor not part of the config descriptor,
   // this lookup table defines where to look for it in the const
   // USB_CLASS_SPECIFIC_DESC[] array.
   //first element is the config number (if your device has more than one config)
   //second element is which interface number
   //set element to 0xFFFF if this config/interface combo doesn't exist
   const int16 USB_CLASS_SPECIFIC_DESC_LOOKUP[USB_NUM_CONFIGURATIONS][1] =
   {
   //config 1
      //interface 0
         0
   };

   //if a class has an extra descriptor not part of the config descriptor,
   // this lookup table defines the size of that descriptor.
   //first element is the config number (if your device has more than one config)
   //second element is which interface number
   //set element to 0xFFFF if this config/interface combo doesn't exist
   const int16 USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[USB_NUM_CONFIGURATIONS][1] =
   {
   //config 1
      //interface 0
         32
   };


//////////////////////////////////////////////////////////////////
///
///   start config descriptor
///   right now we only support one configuration descriptor.
///   the config, interface, class, and endpoint goes into this array.
///
//////////////////////////////////////////////////////////////////

   #DEFINE USB_TOTAL_CONFIG_LEN      41  //config+interface+class+endpoint+endpoint (2 endpoints)

   const char USB_CONFIG_DESC[] = {
   //IN ORDER TO COMPLY WITH WINDOWS HOSTS, THE ORDER OF THIS ARRAY MUST BE:
      //    config(s)
      //    interface(s)
      //    class(es)
      //    endpoint(s)

   //config_descriptor for config index 1
         USB_DESC_CONFIG_LEN, //length of descriptor size          ==1
         USB_DESC_CONFIG_TYPE, //constant CONFIGURATION (CONFIGURATION 0x02)     ==2
         USB_TOTAL_CONFIG_LEN,0, //size of all data returned for this config      ==3,4
         1, //number of interfaces this device supports       ==5
         0x01, //identifier for this configuration.  (IF we had more than one configurations)      ==6
         0x00, //index of string descriptor for this configuration      ==7
         0x80, //bit 6=1 if self powered, bit 5=1 if supports remote wakeup (we don't), bits 0-4 unused and bit7=1         ==8
         50, //maximum bus power required (maximum milliamperes/2)  (100mA)

   //interface descriptor 1
         USB_DESC_INTERFACE_LEN, //length of descriptor      =10
         USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04)       =11
         0x00, //number defining this interface (IF we had more than one interface)    ==12
         0x00, //alternate setting     ==13
         2, //number of endpoins, except 0 (pic167xx has 3, but we dont have to use all).       ==14
         0x03, //class code, 03 = HID     ==15
         0x00, //subclass code //boot     ==16
         0x00, //protocol code      ==17
         0x00, //index of string descriptor for interface      ==18

   //class descriptor 1  (HID)
         USB_DESC_CLASS_LEN, //length of descriptor    ==19
         USB_DESC_CLASS_TYPE, //dscriptor type (0x21 == HID)      ==20
         0x11,0x01, //hid class release number (1.0) (try 1.10)      ==21,22
         0x00, //localized country code (0 = none)       ==23
         0x01, //number of hid class descrptors that follow (1)      ==24
         0x22, //report descriptor type (0x22 == HID)                ==25
         USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0], 0x00, //length of report descriptor            ==26,27

   //endpoint descriptor
         USB_DESC_ENDPOINT_LEN, //length of descriptor                   ==28
         USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05)          ==29
         0x81, //endpoint number and direction (0x81 = EP1 IN)       ==30
         0x03, //transfer type supported (0x03 is interrupt)         ==31
         USB_EP1_TX_SIZE,0x00, //maximum packet size supported                  ==32,33
         10,  //polling interval, in ms.  (cant be smaller than 10)      ==34

   //endpoint descriptor
         USB_DESC_ENDPOINT_LEN, //length of descriptor                   ==35
         USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05)          ==36
         0x01, //endpoint number and direction (0x01 = EP1 OUT)      ==37
         0x03, //transfer type supported (0x03 is interrupt)         ==38
         USB_EP1_RX_SIZE,0x00, //maximum packet size supported                  ==39,40
         10 //polling interval, in ms.  (cant be smaller than 10)    ==41
   };

   //****** BEGIN CONFIG DESCRIPTOR LOOKUP TABLES ********
   //since we can't make pointers to constants in certain pic16s, this is an offset table to find
   //  a specific descriptor in the above table.

   //NOTE: DO TO A LIMITATION OF THE CCS CODE, ALL HID INTERFACES MUST START AT 0 AND BE SEQUENTIAL
   //      FOR EXAMPLE, IF YOU HAVE 2 HID INTERFACES THEY MUST BE INTERFACE 0 AND INTERFACE 1
   #define USB_NUM_HID_INTERFACES   1

   //the maximum number of interfaces seen on any config
   //for example, if config 1 has 1 interface and config 2 has 2 interfaces you must define this as 2
   #define USB_MAX_NUM_INTERFACES   1

   //define how many interfaces there are per config.  [0] is the first config, etc.
   const char USB_NUM_INTERFACES[USB_NUM_CONFIGURATIONS]={1};

   //define where to find class descriptors
   //first dimension is the config number
   //second dimension specifies which interface
   //last dimension specifies which class in this interface to get, but most will only have 1 class per interface
   //if a class descriptor is not valid, set the value to 0xFFFF
   const int16 USB_CLASS_DESCRIPTORS[USB_NUM_CONFIGURATIONS][1][1]=
   {
   //config 1
      //interface 0
         //class 1
         18
   };

   #if (sizeof(USB_CONFIG_DESC) != USB_TOTAL_CONFIG_LEN)
      #error USB_TOTAL_CONFIG_LEN not defined correctly
   #endif


//////////////////////////////////////////////////////////////////
///
///   start device descriptors
///
//////////////////////////////////////////////////////////////////

   const char USB_DEVICE_DESC[USB_DESC_DEVICE_LEN] ={
      //starts of with device configuration. only one possible
         USB_DESC_DEVICE_LEN, //the length of this report   ==1
         0x01, //the constant DEVICE (DEVICE 0x01)  ==2
         0x00,0x02, //usb version in bcd 
         0x00, //class code ==5
         0x00, //subclass code ==6
         0x00, //protocol code ==7
         USB_MAX_EP0_PACKET_LENGTH, //max packet size for endpoint 0. (SLOW SPEED SPECIFIES 8) ==8
         0x11,0x11, //vendor id (0x04D8 is Microchip, or is it 0x0461 ??)
         0x11,0x11, //product id   ==11,12  //don't use ffff says usb-by-example guy.  oops
         0x00,0x01, //device release number  ==13,14
         0x01, //index of string description of manufacturer. therefore we point to string_1 array (see below)  ==15
         0x02, //index of string descriptor of the product  ==16
         0x00, //index of string descriptor of serial number  ==17
         USB_NUM_CONFIGURATIONS  //number of possible configurations  ==18
   };


//////////////////////////////////////////////////////////////////
///
///   start string descriptors
///   String 0 is a special language string, and must be defined.  People in U.S.A. can leave this alone.
///
///   You must define the length else get_next_string_character() will not see the string
///   Current code only supports 10 strings (0 thru 9)
///
//////////////////////////////////////////////////////////////////

//the offset of the starting location of each string.  offset[0] is the start of string 0, offset[1] is the start of string 1, etc.
char USB_STRING_DESC_OFFSET[]={0,4,12};

char const USB_STRING_DESC[]={
   //string 0
         4, //length of string index
         USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
         0x09,0x04,   //Microsoft Defined for US-English
   //string 1
         8, //length of string index
         USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
         'B',0,
         'E',0,
   //string 2
         58,                   //length of string index
         USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
         ' ',0,
         'B',0,
         'A',0,
         'R',0,
         'A',0,
         'N',0,
         ' ',0,
         'E',0,
         'K',0,
         'R',0,
         'E',0,
         'M',0,
         ' ',0
};

#ENDIF