Difference between revisions of "RS232 RS485 USB Converter Board"

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(transfer this converter page from my server to opencircuits.com)
 
(adding gEDA libs for the circuit)
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svn checkout http://chungyan5.no-ip.org/svn/open_svn/converter/trunk
 
svn checkout http://chungyan5.no-ip.org/svn/open_svn/converter/trunk
 
</nowiki></pre>
 
</nowiki></pre>
 +
:OR [[Media:Converter.zip|Download here]]
 +
:gEDA libraries can be download [[here]], then modify the gafrc inside converter/
 
*We have components and PCB, Or some have already soldered, if needed email to us: [mailto:yan@amonics.com yan]
 
*We have components and PCB, Or some have already soldered, if needed email to us: [mailto:yan@amonics.com yan]
  
  
 
+
==ToDo==
 
+
*get a usb chips to uart, which with linux driver
<!--
 
ToDo
 
 
 
 
 
get a usb chips to uart
 
which can be bought, linux driver
 
*chips
 
 
**MCT P87C52UBAA(http://pfranc.com/usb/usb.mhtml)
 
**MCT P87C52UBAA(http://pfranc.com/usb/usb.mhtml)
*driver in linux : http://ftdi-usb-sio.sourceforge.net/
+
**cypress, PSoC with USB
*usb in linux guide : http://www.linux-usb.org/USB-guide/book1.html
+
*linux driver
 
+
**driver in linux : http://ftdi-usb-sio.sourceforge.net/
 
+
**usb in linux guide : http://www.linux-usb.org/USB-guide/book1.html
make one by ourselve, since future this lib must useful to us -->
 

Revision as of 00:54, 26 November 2006

Features

  • for low traffic and low speed application
  • mcu, RS232, RS485/RS422, slave usb all can be interchangeable.
  • usb side
    • support platform in linux with usb driver
    • simulated uart programming in application level
  • rs232 to rs485 side
    • Tested max. baudrate is 115200(i assume more high baudrate can be accepted, but i have not tested)


Technical

RS232


USB


RS485

  • chips
    • Linear Technology Corp., LTC2859 and LTC2861
    • DS3695


Circuit and PCB

svn checkout http://chungyan5.no-ip.org/svn/open_svn/converter/trunk

OR Download here
gEDA libraries can be download here, then modify the gafrc inside converter/
  • We have components and PCB, Or some have already soldered, if needed email to us: yan


ToDo