Re: USB to RS232 one chip solution
- From: "Paul E. Schoen" <pstech@xxxxxxxxx>
- Date: Mon, 5 May 2008 11:55:23 -0400
"mkr5000" <mikerbgr@xxxxxxxxx> wrote in message
news:26480864-ca3d-4ff0-ad36-953c1d97cc94@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I've seen some parts FT232* and the like but not familiar with them.
What is the current state of the art chip solution for rs232 to usb
conversion?
I just have some simple 8 bit no parity 1200 baud I'd like to get into
USB.
Will I have to write any software for the chip or can I simply set the
chip by some pin manipulation?
Something simple/cheap/popular.
Thanks kindly for any help.
The Silabs CP2103 works well, and they have a demo board for about $30, but
the part is in a fine pitch DFN-28. There is also a TI TUSB3410 and a
TUSB5052 that has two UARTs and a 5 port hub.
You might also look at the Microchip PIC18F2450 and similar parts. They
have a full speed demo board (PICDEM FS USB) with a lot of free software
for about $40, and I have made a USB-Serial converter with that as well.
You don't have to do anything with the firmware, but it's good to have
access to the source so you can tweak it if you need to. And it's useful to
see what's going on "under the hood".
For any of these, you will also need something like a MAX232 to get RS232
voltages. The ICs are in the $5-$10 range in single quantities.
Paul
.
- References:
- USB to RS232 one chip solution
- From: mkr5000
- USB to RS232 one chip solution
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