lur
Newbie level 5
sipex rs485 isolation
I want multiple isolated and selectable RS232/RS485 ports (8 or more) in an embedded PC running Linux.
I have seen some comercial PCI or Ethernet solutions, but all of them are expensive. The PC104 solution is also expensive.
I am thinking about doing my own hardware with a USB HUB chip, ftdichip, isolation barrier and a Sipex RS232/RS485 selectable chip.
Does anybody have experience in this?
What about the Linux driver? I should write a new one or there is something I can use for this purpose.
Thank´s in advance!
I want multiple isolated and selectable RS232/RS485 ports (8 or more) in an embedded PC running Linux.
I have seen some comercial PCI or Ethernet solutions, but all of them are expensive. The PC104 solution is also expensive.
I am thinking about doing my own hardware with a USB HUB chip, ftdichip, isolation barrier and a Sipex RS232/RS485 selectable chip.
Does anybody have experience in this?
What about the Linux driver? I should write a new one or there is something I can use for this purpose.
Thank´s in advance!
