enumaration of cypress device

 I have an fx2 device .I have developed a firmware for it . When I download
the firmware the device takes a long time to enumarate or some times it
goes a known device .Some times it quickly enumarates. Is the power supply
current has got something to do with the enumaration process. The
enumaration process is getting distrubed some how. I appriciate some help
thanks in advance 
punitha  

USBTrace from http://sysnucleus.com/ is quite useful

Also there have been problems with Cypress' support of program over the FX2 
code size (but fitting in the FX2LP, but not being loaded correctly).

"puniths_d" <puniths_d@yahoo.co.in> wrote in message 
news:t7idnZ2S1NneSb_UnZ2dnUVZ_vjinZ2d@giganews.com...
> I have an fx2 device .I have developed a firmware for it . When I download
> the firmware the device takes a long time to enumarate or some times it
> goes a known device .Some times it quickly enumarates. Is the power supply
> current has got something to do with the enumaration process. The
> enumaration process is getting distrubed some how. I appriciate some help
> thanks in advance
> punitha 

 I did saw the log file from USB trace . Iam not able to figure out the
problem. When it is success ,there is a device start in the log file . When
it fails there is no device start , there is is only device removal.
thanks
punitha