Need Help with USB using PIC18F2455

[iugmoh]

I use EasyHID to generate both PICBASIC code and visual basic code, I connected the cicuit as shown in various posts and schematics, but evey time I plug the usb cable in our laptop or my PC I have a problem "USB Device Not recognized" , I sure that I'm connected the circuit well with 470nF capacitor but the same problem , I think there are a driver I must install or something else.
I attached my photos for clearing

[mister_e]

Most problem comes with the ConfigFuse setting, then the code. Is it me.. or i don't any of those here?

You'll also need to tell us which crystal/resonator speed you have.

I saw you looked at USBDemo... you didn't find anything to use in?

[iugmoh]

Oky here is my code which I use 4MHZ crystal:

' Pic Configuration
' =================
asm
__CONFIG _CONFIG1L, _PLLDIV_1_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
; ; ; USB clock source comes from the 96 MHz PLL divided by 2
; ; [OSC1/OSC2 Src: /1][96 MHz PLL Src: /2]
; No prescale (4 MHz oscillator input drives PLL directly)


__CONFIG _CONFIG1H, _FOSC_XTPLL_XT_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
; ; ; Oscillator Switchover mode disabled
; ; Fail-Safe Clock Monitor disabled
; XT oscillator, PLL enabled, XT used by USB

__CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_ON_2L & _BORV_2_2L & _VREGEN_ON_2L
__CONFIG _CONFIG2H, _WDT_OFF_2H
__CONFIG _CONFIG3H, _MCLRE_ON_3H & _LPT1OSC_OFF_3H & _PBADEN_OFF_3H & _CCP2MX_ON_3H
__CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
endasm

DEFINE OSC 48
;DEFINE LOADER_USED 1
symbol led=portb.7
output led
USBBufferSizeMax con 8 ' maximum buffer size
USBBufferSizeTX con 8 ' input
USBBufferSizeRX con 8 ' output

' the USB buffer...
USBBuffer Var Byte[USBBufferSizeMax]
USBBufferCount Var Byte

' ************************************************** **********
' * main program loop - remember, you must keep the USB *
' * connection alive with a call to USBService every couple *
' * of milliseconds or so... *
' ************************************************** **********
low led
usbinit ' initialise USB...
ProgramStart:

gosub DoUSBIn
toggle led
pause 100
gosub DoUSBOut
toggle led
pause 100
goto ProgramStart

' ************************************************** **********
' * receive data from the USB bus *
' ************************************************** **********
DoUSBIn:
USBBufferCount = USBBufferSizeRX ' RX buffer size
USBService ' keep connection alive
USBIn 1, USBBuffer, USBBufferCount, DoUSBIn ' read data, if available
return

' ************************************************** **********
' * wait for USB interface to attach *
' ************************************************** **********
DoUSBOut:
USBBufferCount = USBBufferSizeTX ' TX buffer size
USBService ' keep connection alive
USBOut 1, USBBuffer, USBBufferCount, DoUSBOut ' if bus available, transmit data
return

[mister_e]

this section will cause you a problem

gosub DoUSBIn
toggle led
pause 100
gosub DoUSBOut
toggle led
pause 100
goto ProgramStart

Why? because of this section

' ************************************************** **********
' * main program loop - remember, you must keep the USB *
' * connection alive with a call to USBService every couple *
' * of milliseconds or so... *
' ************************************************** **********

The easy way will be to use Darrel's instant interrupts. Here's the famous POST 148
http://www.picbasic.co.uk/forum/show...&postcount=148

[iugmoh]

Iam from begining not include delay of 100ms but I added them to give indication for led about where the code stuck and find that It's stuck in DousbIn subroutine. now I'm removed the delay time and the same problem , I don't know where is the problem ????????????

[mister_e]

DoUSBIn:
        USBBufferCount = USBBufferSizeRX ' RX buffer size
        USBService ' keep connection alive
        USBIn 1, USBBuffer, USBBufferCount, TimeOut ' No data?, Getout of here
TimeOut:
return

Do you still have the USB connection error?

Maybe better to begin with USBDemo and work around with? There's a load of information in that thread (ok ~180 post to read but)