emmanuel
Guest
Tue Jan 24, 2012 10:59 pm
Hello,
I'm using the usb FT232 in VCCIO 1.8V mode . But I need to add a
resistor between VCCIO and GND to have a VCCIO <= 1.8V.
When I'm measuring Vccio without the resistor I'm having
VCCIO=2.4V ....
Anybody can explain to me the reason ?
Thank's Emmanuel
You can find the data here :
http://esaid.free.fr/ft232/FT232.htm
Tom Biasi
Guest
Wed Jan 25, 2012 4:29 pm
On Tue, 24 Jan 2012 12:59:28 -0800 (PST), emmanuel
<emmanuel.said_at_cern.ch> wrote:
Quote:
Hello,
I'm using the usb FT232 in VCCIO 1.8V mode . But I need to add a
resistor between VCCIO and GND to have a VCCIO <= 1.8V.
When I'm measuring Vccio without the resistor I'm having
VCCIO=2.4V ....
Anybody can explain to me the reason ?
Thank's Emmanuel
You can find the data here :
http://esaid.free.fr/ft232/FT232.htm
The link is in French and my French is not that good but it look like
that's the way it's supposed to work.
For 2.4 volts leave the resistor out, for 1.8 volts put a 1K resistor
from vccio to gnd.
