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Are there many choice to make a USB to RS232?

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IamnotJunk

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Are there many choice to make a USB to RS232?
Curious how many type of design is available, and which one is the best.
 

yes look at MCU with USB and UART
 

The easy way

Use CP2101 from silicon lab it is a bit expansive chip but easy to use

All the best

BObi
 

There are cables available (about $10 in Canada) that do this. They've been available for 5 years or more. Is this the kind of thing that you mean? :?:

C
 

Use CP2101 from silab,it has a Uart and a USB port.It provides all the signalling including DTR,DSR,RI,DCD,Rx,Tx.....etc.CAn be used for transrecieving.....from USB to RS232 and rs232 to USB.
 

Or the FTDI FT232R chips are good to. The data sheet actually fgives you a full design for a USB-RS232 interface.

JD
 

We have used FTDIchip.com products in small projects. FT245 was the type, if I remember right. You can download free drivers and it is easy to communicate to from any MCU/MPU or FPGA/CPLD. These chips also have a parallel interface, if you are not married to the idea of using 232.
 

ya you can assemble the circut for that!!

usb signals are : 4

vcc
gnd
+D
-D

rs-232 signals are :

tx
rx
gnd

connect usb signal to usb transceiver which converts +/-D signals(differential logic signals ) to normal signals( one signal) !!
connect that signal to rs-232 !

a usb transceiver will be key try for different transceivers in fairchild, TI,philips etc !!
 

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