Lpc2000

Hi,

Kiwi.  Have you a transistor on pin P0.31 for 1.5k or just
1.5k directly connected to +3.3V as on the MCB2140?

Varuzhan


--- In lpc2000@yahoogroups.com, "pitstock_kiwi" <keith@...> wrote:
>
> Hi Varuzhan
> 
> I had the same problem where the USB would not re connect. Heres what 
> I did. It is a hack but works until I have time to work it out 
> properly or someone publishes the correct method.
> 
> I have set my MCB2140 as self powered for debugging ease. 
> 
> in USBCFG.h I changed some zeros ot ones like this
> 
> #define USB_POWER_EVENT     1//0
> #define USB_RESET_EVENT     1
> #define USB_SUSPEND_EVENT   1//0
> #define USB_RESUME_EVENT    1//0
> #define USB_WAKEUP_EVENT    1//0
> 
> in USBUSER.C I did this
> 
> #if USB_RESUME_EVENT
> void USB_Resume_Event (void) {
>   // TODO: hacky fix so reconnect works. Find out right way later
>   // this fix makes self powerd devices work on reconnect
>   USB_Reset();	// USB hardware reset
>   USB_Init();                               /* USB Initialization */
>   USB_Connect(TRUE);                        /* USB Connect */
> }
> #endif
> 
> 
> Cheers
> Kiwi Keith
> 
> --- In lpc2000@yahoogroups.com, "varuzhandanielyan" <dan@> wrote:
> >
> > Nothing helps.
> > 
> > I am going step-by-step using ULINK and watching the P0.31
> > state by scope.
> > If I configure P0.31 as output, I can easily set it to 0 or
> > 1, but when I configure it for CONNECT inside the USB_Init() :
> > PINSEL1 |=  0x80004000;
> > and try to set the SoftConnect_N active, P0.31 remains in
> > high (inactive) state.
> > I tried both calling the USB_Connect(TRUE) and immediate
> > by commands
> > CMD_CODE = 0x00FE0500;
> > CMD_CODE = 0x00010100;
> > placing them in different places, particularly after
> > USB_Reset() as recommended - no effect.
> > 
> > Please, help me, what is wrong?
> > 
> > Great thanks in advance,
> > Varuzhan
> > 
> >
>