davemaster
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mokhoo said:i have some questions about the same subject
1)how to make the communication with a usb phone( eg sony ericsson k750)
i can control it using hyper terminal and matlab(but this is only valid after driver installation)
2)can i use pic 18F4550 which is usb compatible, if so, how to connect?
i mean is it direct connection of the usb port in the microcontroller to the usb cable of the phone and direct send of data
3)what is exactly the 'serial to usb' cable function?can i use it to make a serial connection to the usb phone??
thanks in advance
please reply
Greetings
Some answers, without anesthesia:
1) The phone is not usb, the cable is. The cable is a serial to usb interface. The driver is just for interface windows with the usb-serial chip on cable. Without this chip driver, you cant receive/transmit data from/to phone.
2) The 18F4550 is not a usb HOST, is just a usb DEVICE. So, you CANT connect any USB DEVICE to this pic. Search on microchip site, there are some new 32 bit uC with usb host feature.
3) If you want to, yes, you can do everything you want. The cable function is in the cable name "serial to usb" and vice versa. read/write rx/tx phone serial pins and get/put data on usb... that's all.
Good luck!