We are using our own carrier board, the aartesys easy gateway. It’s a DIN rail device with one or two ethernet interface, a RS485 interface connected to the “UART B” (pin 32, 34, 36 and 38 of the VF50 module) and a Telit Cellular module connected to the USB interface.
Concerning the RS485 interface, our board is very similar to the Colibri evaluation board v. 3.2 : the same UART is connected to a RS485 transceiver, an Exar SP3072EEN-L in our case, and then it goes to the RS485 bus.
I have created my own BSP : I have configured and compiled the kernel sources from the toradex git (git://git.toradex.com/linux-toradex.git) to create my own kernel and root FS.
I still using the original toradex U-Boot binary.
The Vybrid reference manual can be found here :
I just see : this is “new” version of the document.
The references that I mentioned in my original question was based on the “Vybrid Reference Manual, Rev. 7, 06/2014, Freescale Semiconductor, Inc.”
In the new document, the “VFxxx Controller Reference Manual, Rev. 0, 10/2016, NXP Semiconductors”, the corresponding text is under the chapter 22.214.171.124 Baud rate generation, pages 2698 and 2699.