Although I unenable output, it still outputs 2.5 volt...

  • Thread starter Thread starter uzinei
  • Start date Start date
U

uzinei

Hi, I am developing a data transmission circuit using the Cypress
EZ-USB development kit.
I have a question about setting register. When I unenable a certain
pin, for example, CLKOUT pin, it have to be 0 Voltage, I think.
But although the CLKOUT pin become to be float, it still outputs 2.5
Volt. Is it correct? Or, because of wrong firmware I made, it become to
2.5 Volt, not to 0 Volt?
I am a beginner, so I have to study hard about USB.
But if you help me, it is very helpful for me. Please teach me.
Thank you for any help. Bye!!
 
Although you posted to a hardware news group, yours is not the type of
question that is usually asked, or answered, here. You have an
engineering/developer question. This group is more for hardware usage,
connectability (is that a word?) and compatibility.

There are numerous web sites available that cater to USB only. Use Google to
search them out. You will have better success there.

--
Regards,

Richard Urban
Microsoft MVP Windows Shell/User
(For email, remove the obvious from my address)

Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
 
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