in my flashing software , these are the options available for editing the fuses , what are the correct values for fuses for interfacing 18F4550 as generic HID device ? , am with these for about 1month , kindly someone help me
below is my screen shots




I am using 20MHz crystal and LVP off

 

The Fuse bits are set in the C code. Do not change them.
THEN I CLICKED ON YOUR PICTURE I GOT A POPUP FOR SOME ADULT/XRATED DODGY DATING SITE. PLEASE DO NOT USE THAT KIND OF IMAGEHOST. OK!!!

 

Image Shack provides free hosting and no spam

It's what I use

 

varunme, Post your circuit.

 

sorry for the late reply
I am using this very board

http://www.nskelectronics.in/pic-usb-4550_brd.html
thank you
varun

 

in this board all firmwares are working except for the usb one , when the pic programmed with usb firmware when connected to usb , it says usb disc not recognized and shows a VID and PID 0000

 

can anyone help me in selecting CPUDIV value from
CPUDIV are ,
Div/6 wPLL Div/4
Div/4 wPLL Div/3
Div/3 wPLL Div/2
Div/2 wPLL No div ? for 20MHZ crystal

http://imageshack.us/photo/my-images/5/180350609unledp122595lo.jpg/

 

Using ImageShack you can copy the code from the direct link and paste into that icon of the mountain & sun on the advanced page and ember your picture:

Microchip has some excellent example programs in their Microchip Applications Library. I copied some code for a PIC18F4550 based project for you. No guarantee this will work for you but it may be close.

/** CONFIGURATION **************************************************/
#if defined(PICDEM_FS_USB)      // Configuration bits for PICDEM FS USB Demo Board (based on PIC18F4550)
        #pragma config PLLDIV   = 5         // (20 MHz crystal on PICDEM FS USB board)
        #if (USB_SPEED_OPTION == USB_FULL_SPEED)
            #pragma config CPUDIV   = OSC1_PLL2  
        #else
            #pragma config CPUDIV   = OSC3_PLL4   
        #endif
        #pragma config USBDIV   = 2         // Clock source from 96MHz PLL/2
        #pragma config FOSC     = HSPLL_HS
        #pragma config FCMEN    = OFF
        #pragma config IESO     = OFF
        #pragma config PWRT     = OFF
        #pragma config BOR      = ON
        #pragma config BORV     = 3
        #pragma config VREGEN   = ON      //USB Voltage Regulator
        #pragma config WDT      = OFF
        #pragma config WDTPS    = 32768
        #pragma config MCLRE    = ON
        #pragma config LPT1OSC  = OFF
        #pragma config PBADEN   = OFF
//      #pragma config CCP2MX   = ON
        #pragma config STVREN   = ON
        #pragma config LVP      = OFF
//      #pragma config ICPRT    = OFF       // Dedicated In-Circuit Debug/Programming
        #pragma config XINST    = OFF       // Extended Instruction Set
        #pragma config CP0      = OFF
        #pragma config CP1      = OFF
//      #pragma config CP2      = OFF
//      #pragma config CP3      = OFF
        #pragma config CPB      = OFF
//      #pragma config CPD      = OFF
        #pragma config WRT0     = OFF
        #pragma config WRT1     = OFF
//      #pragma config WRT2     = OFF
//      #pragma config WRT3     = OFF
        #pragma config WRTB     = OFF       // Boot Block Write Protection
        #pragma config WRTC     = OFF
//      #pragma config WRTD     = OFF
        #pragma config EBTR0    = OFF
        #pragma config EBTR1    = OFF
//      #pragma config EBTR2    = OFF
//      #pragma config EBTR3    = OFF
        #pragma config EBTRB    = OFF

 

The question is not with the fuse settings in the compiler , its about the burner software , so i included the screenshot of the burner software

 

No, that's a screen shot of the config settings.

 

No, that's a screen shot of the config settings.

yes , please verify the config settings available for the CPUDIV , the one for 20Mhz is not available as a dropdown menu

 

FWIW, the CPUDIV I'm using for my 18F2455 USB test project is "DIV/2 wPLL, DIV/1"

 

FWIW, the CPUDIV I'm using for my 18F2455 USB test project is "DIV/2 wPLL, DIV/1"

which oscillator are you using , 20Mhz ?

 

Yes, 20MHz.

 

I think ,my problem is with my progammer , its microburn

 

I think ,my problem is with my progammer , its microburn

Buy a Microchip programmer, if Microchip cant get it right then no one can.

I use a PICSTART but there are other options these days. The picstart is updateable to latest PICs.

 

PicKits can also do in circuit debugging. PicKit 2 is faster then PicKit 3 but 3 covers the newer devices (even the 32's). I have 3 of the 2's, haven't got a 3 yet (I don't need it as I have an ICD3).

 

I too going to buy pickit 3 , the ICD3 is costlier than pickit 3 isnt it ?

 

I too going to buy pickit 3 , the ICD3 is costlier than pickit 3 isnt it ?

The ICD3 is significantly more expensive then either PicKit.