logo

Could not compile stylesheet for simplistic. Using last compiled stylesheet.

RS485 and COM MODULE

posted in IGEP COM MODULE
Tuesday, March 12 2013, 10:24 PM
0
Hi

i need an RS485 interface with the IGEP COM MODULE board.
i will use an UART from the IGEP COM MODULE and a RS485 transceiver on the expansion board.
How can i manage the DE and RE signals of a standard RS485 transceiver with the COM module ? GPIO ?
thanks
julien

Accepted Answer

Wednesday, March 13 2013, 08:57 AM - #permalink
0
Hi,

You have two solutions, the first one is use a hardware trick that inverts the UART RTS signal connected to the DE/RE (for example using a transistor). The second is drive manualy this pin, i that case as example you can download the schematics of IGEP BERLIN and use the same solution. Via software, if you use the ISEE kernel, you can configure the UART in mode RS485. See

http://labs.isee.biz/index.php/How_to_use_RS485
The reply is currently minimized Show
Responses (0)
  • There are no replies here yet.
Your Reply

SUPPORT


This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.
IGEP Community Wiki
IGEP Community Forum
IGEP Community Online Chat