| ??? 05/27/11 06:08 Read: times |
#182415 - Example Responding to: ???'s previous message |
Michael Karas said:
Can you be more clear what the application really is? Indeed! Also, what is your level of experience with USB? If your need is to simply translate a virtual Comm port from inside the PC out through USB to a RS232 serial port then there are dedicated parts that do that job. The one that I've used the most is from FTDI and called the FT232R. The FTDI chip must also be used with a companion MAX3243 or similar type part to achieve the RS232 signalling levels for the serial port. For an example of the FTDI chip integrated into a cable, see: http://www.8052.com/forum/read/182367 and follow the link for datasheets, etc. Note that Silicon Labs, Microchip, and others also make these so-called "bridge" devices. Here is an example of a product in which a microcontroller (a PIC, in this case) is used as a USB-to-Async-Serial bridge: http://www.microchipdirect.com/productse...ds=TMCE001 See also: http://www.microchip.com/forums/m559485.aspx for a description of the function of the microcontroller. |
| Topic | Author | Date |
| USB RS232 | 01/01/70 00:00 | |
| Can you be.... | 01/01/70 00:00 | |
Example | 01/01/70 00:00 |