lpcware

LPC2387 USB Host controller not working

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by sinhapra on Thu Aug 07 13:11:35 MST 2014
I am working on USB Host controller and below are the pin configuration that i use and Usbhw init()
PINSEL1 &= ~0x3C000000;                 /* P0.29 USB1_D+, P0.30 USB1_D- */
    PINSEL1 |=  0x14000000;                 /* PINSEL1 26.27, 28.29         */
   
 
    PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22));
    PINSEL3 |=  ((1<<4) |  (2<<6) | (2<<12) | (2<<22)); //GPIO for PPWR1

PCONP         |=  (1UL << 31);      /* Enable USB interface power/clock   */
    USBClkCtrl    |=  0x1F;             /* Enable Host, OTG and AHB master clk*/           
   
    for (tout = 100; ; tout--) {
      if ((USBClkSt & 0x1F) == 0x1F)    /* Wait for clocks enabled            */
        break;          
      if (!tout)          
        return (__FALSE);
    }   
   
    //USBPortSel =0;
    /* Port 2 is used for USB host                                            */
    //USBPortSel    &= ~0x01;             /* Enable Port 2 as Host port         */   
    VICVectPriority22  =  0;                  /* Set USB int highest priority */
    VICVectAddr22      = (U32)USB_IRQHandler; /* Set interrupt vector         */


After doing all these changes and trying many other combination the LPC2387 doesn't work.

Is there anyone who tell me what I am missing something here..?

It looks like LPC2387 doesn't turn USB controller ON.

Please guide..

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