| View previous topic :: View next topic |
| Author |
Message |
puniths_d
Guest
|
 Posted: Tue Nov 18, 2008 8:42 pm Post subject: 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 |
|
| |
|
 Back to top |
Bill Davy
Guest
|
| Posted: Tue Nov 18, 2008 9:32 pm Post subject: Re: enumaration of cypress device |
|
|
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...
| Quote: | 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 |
|
|
| |
|
| Back to top |
puniths_d
Guest
|
| Posted: Tue Nov 18, 2008 10:40 pm Post subject: Re: enumaration of cypress device |
|
|
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 |
|
| |
|
| Back to top |
|
