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 ?
Best regards, Boki.