Need Help with USB using PIC18F2455

[mister_e]

HA! so that mean you may use V2.47 of the compiler right?

I thought i would remove the

UCFG    var byte EXT

line because some had 'Redefinition of VAR' problem with V2.50.. anyways, it should work, unless you know what else to add

I'm a bit mixed-up... your thread name is Need Help with USB using PIC18F2455

[iugmoh]

yes I'm use PBP247 , oky I compile and load the hex file but the same problem

I have some questions:
1)Can I use any type of the 470nF capacitor because I'm not use ceramic I use mica
2) Does I need special way to load my hex file to pic or any programmer, I use superpro 280U programmer.

[mister_e]

You shouldn't have any problem with mica cap.

In your device programmer software you may have an option to program the config fuses setting or not. I don't have this specific programmer and seems their software refuse to install on my machine... so i can't really help you on that.

Have you already program other PICs with this one?

[iugmoh]

I don't have any problems with this programmer , I used it many times and it has a high performance , and you can set config fuses using programmer software or from PICBASIC , and here we add them using picbasic so it's updated automatically in programmer software
I will attach the configuration fuses photos

' 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

[iugmoh]

anyone can help ??

[iugmoh]

Oky now It's working fine , I discover the problem is from connector is not soldering perfectly with wires so I cut the connector cable and connect it directly and working fine

[mister_e]

yeah it happen

Since it's a high level programmer (645$) I was a bit worried about why on earth it doesn't work... Glad to hear you find it!