USB interface for microcontrollers?

[charliez]

In the past an easy to use interface to a microcontroller is the serial port (RS-232) interface.

Nowadays, many devices have USB interfaces. How would I integrate the two? I haven't seen microcontrollers with built in USB ports.

Thanks !

 

[Nigel Goodwin]

In the past an easy to use interface to a microcontroller is the serial port (RS-232) interface.

Nowadays, many devices have USB interfaces. How would I integrate the two? I haven't seen microcontrollers with built in USB ports.

Thanks !

The PIC 16C745 has it - but bear in mind USB is a GREAT deal more complicated than serial. MicroChip have application notes showing how to use it, plus full details (hardware and source code) for their new USB FLASH programmer, the PICKit1.

 

[Exo]

You can use an USB uart chip, they convert USB to RS232.

The FT232BM is such a chip.Here is some info about it.

 

[charliez]

Thanks, I shall try this out.