| Author |
Message |
IamnotJunk
Joined: 29 Nov 2007
Posts: 39
|
 29 Nov 2007 19:19 Are there many choice to make a USB to RS232? |
|
|
|
|
Are there many choice to make a USB to RS232?
Curious how many type of design is available, and which one is the best.
|
|
| Back to top |
|
 |
Iouri
Joined: 17 Aug 2005
Posts: 687
Helped: 79
|
03 Dec 2007 18:56 Are there many choice to make a USB to RS232? |
|
|
|
|
| yes look at MCU with USB and UART
|
|
| Back to top |
|
|
bobcat1
Joined: 10 Jul 2002
Posts: 1118
Helped: 48
|
10 Dec 2007 7:37 Re: Are there many choice to make a USB to RS232? |
|
|
|
|
The easy way
Use CP2101 from silicon lab it is a bit expansive chip but easy to use
All the best
BObi
|
|
| Back to top |
|
|
Google
AdSense
|
10 Dec 2007 7:37 Ads |
|
|
|
|
|
|
| Back to top |
|
|
cybernut
Joined: 16 Jan 2003
Posts: 18
Helped: 1
|
14 Dec 2007 5:01 Re: Are there many choice to make a USB to RS232? |
|
|
|
|
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
|
|
| Back to top |
|
|
nan_ishan
Joined: 29 Oct 2007
Posts: 99
Helped: 10
Location: Nasik-India-Asia
|
14 Dec 2007 5:53 Are there many choice to make a USB to RS232? |
|
|
|
|
| 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.
|
|
| Back to top |
|
|
jdtoronto
Joined: 07 Jul 2007
Posts: 21
Helped: 2
|
15 Dec 2007 0:21 Re: Are there many choice to make a USB to RS232? |
|
|
|
|
Or the FTDI FT232R chips are good to. The data sheet actually fgives you a full design for a USB-RS232 interface.
JD
|
|
| Back to top |
|
|
Arulaane
Joined: 18 Dec 2007
Posts: 5
|
18 Dec 2007 18:20 Re: Are there many choice to make a USB to RS232? |
|
|
|
|
| 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.
|
|
| Back to top |
|
|
funnynypd
Joined: 09 May 2007
Posts: 918
Helped: 21
Location: USA & Canada
|
18 Dec 2007 20:34 Are there many choice to make a USB to RS232? |
|
|
|
|
| cygnal, FTDI or Microchip.
|
|
| Back to top |
|
|
ramiabr
Joined: 19 Dec 2007
Posts: 3
|
19 Dec 2007 12:41 Re: Are there many choice to make a USB to RS232? |
|
|
|
|
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 !!
|
|
| Back to top |
|
|
