USB host.

[Boki]

Hi All,

I connect the USB D+, D- signals from Nokia cell pop port.

It emulates the RS232 signal for PC.

However, I am connecting to Embedded system, I don't have USB host as
PC Windows.

I need a USB host with RS232 signal conversion chip, right ?

However, currently, I found FT2232D, it is about US$6, too expensive
to my system.

Could you please advice the cheaper one ?

Any 8051 USB host ?

Appreciate!

Best regards,
Boki.

 

[coals]

I connect the USB D+, D- signals from Nokia cell pop port.

It emulates the RS232 signal for PC.

However, I am connecting to Embedded system, I don't have USB host as
PC Windows.

I need a USB host with RS232 signal conversion chip, right ?

However, currently, I found FT2232D, it is about US$6, too expensive
to my system.

but this IC is not a host!

Could you please advice the cheaper one ?

Any 8051 USB host ?

does not exist!


The right choice is Vinculum VNC1L.
http://www.vinculum.com/documents.html

coals

 

[Roger Hamlett]

Hi All,

I connect the USB D+, D- signals from Nokia cell pop port.

It emulates the RS232 signal for PC.

However, I am connecting to Embedded system, I don't have USB host as
PC Windows.

I need a USB host with RS232 signal conversion chip, right ?

However, currently, I found FT2232D, it is about US$6, too expensive
to my system.

Could you please advice the cheaper one ?

Any 8051 USB host ?

Appreciate!

Best regards,
Boki.

The FT2232, _is not a host_. It is only a USB slave to async serial chip.
Similar to what is already in the phone. Seriously, the cheapest _host_
chip, is the Vinculum, which I have already mentioned. It is going to cost
more than $6 though. Reckon on around $10 for the most basic host chip.
It depends massively on the quantities involved though. If your product
could ship in 100000 off quantities, the same chip, can be got well under
$4.

Best Wishes

 

[Jasen]

However, I am connecting to Embedded system, I don't have USB host as
PC Windows.

I need a USB host with RS232 signal conversion chip, right ?

However, currently, I found FT2232D, it is about US$6, too expensive
to my system.

Could you please advice the cheaper one ?

avrusb


Bye.
Jasen