Difference between revisions of "RS232 RS485 USB Converter Board"
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(adding gEDA libs for the circuit) |
(→Circuit and PCB: updated the geda lib. link) |
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</nowiki></pre> | </nowiki></pre> | ||
:OR [[Media:Converter.zip|Download here]] | :OR [[Media:Converter.zip|Download here]] | ||
| − | :gEDA libraries can be download [ | + | :gEDA libraries can be download [http://www.opencircuits.com/PCB_Footprints 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] | ||
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==ToDo== | ==ToDo== | ||
Revision as of 21:51, 15 December 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
- Host Computer Setting for usb connection
- chips
RS485
- chips
- Linear Technology Corp., LTC2859 and LTC2861
- DS3695
Circuit and PCB
- gEDA Project Files, for example:
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
- get a usb chips to uart, which with linux driver
- MCT P87C52UBAA(http://pfranc.com/usb/usb.mhtml)
- cypress, PSoC with USB
- linux driver
- driver in linux : http://ftdi-usb-sio.sourceforge.net/
- usb in linux guide : http://www.linux-usb.org/USB-guide/book1.html
