Exemplos de usb_clear_trn em C++ (Cpp)

Exemplo n.º 1

Arquivo: pic18_usb.c Projeto: J1M/PSGradePIC

void usb_isr_rst(void) 
{
   UEIR = 0;
   UIR = 0;
   UEIE = 0x9F;
   UIE = STANDARD_INTS & ~__USB_UIF_ACTIVE;

   UADDR = 0;

   usb_disable_endpoints();
   
   usb_token_reset();

   UEP(0) = ENDPT_CONTROL | 0x10;

   while (UIR_TRN) 
   {
      usb_clear_trn();
   }

   UCON_PKTDIS = 0; //SIE token and packet processing enabled

   usb_init_ep0_setup();

   usb_state = USB_STATE_DEFAULT; //put usb mcu into default state
}

Exemplo n.º 2

Arquivo: pic18_usb.c Projeto: Leboefi/Pinguino-JACSS

void usb_isr(void)
{
   unsigned int8 TRNAttempts;
   
   clear_interrupt(INT_USB);
   
   if (usb_state == USB_STATE_DETACHED) return;   //should never happen, though
   if (UIR) 
   {
      debug_usb(debug_putc,"\r\n\n[%X] ",UIR);

      //activity detected.  (only enable after sleep)
      if (UIR_ACTV && UIE_ACTV) {usb_isr_activity();}

      if (UCON_SUSPND) return;

      if (UIR_STALL && UIE_STALL) {usb_isr_stall();}        //a stall handshake was sent

      if (UIR_UERR && UIE_UERR) {usb_isr_uerr();}          //error has been detected

      if (UIR_URST && UIE_URST) {usb_isr_rst();}        //usb reset has been detected

      if (UIR_IDLE && UIE_IDLE) {usb_isr_uidle();}        //idle time, we can go to sleep
      
      if (UIR_SOF && UIE_SOF) {usb_isr_sof();}

      TRNAttempts = 0;
      do
      {
         if (UIR_TRN && UIE_TRN) 
         {
            USTATCopy = U1STAT;
            usb_clear_trn();
            usb_isr_tok_dne();
         }
         else
            break;
      } while (TRNAttempts++ < 4);
   }
}