Should we use A10-Lime or RPI3 as embedded ucontroller for an industrial app?

[thilleary]

We need a quick upgrade to an Arduino application, one that can run on a more industrial-class embedded processor. It's simple - receiving  a RS485 serial command steam, parsing it and translating that information to an html string that is sent to a video camera over an ethernet LAN.  Any advice on the best embedded platform to use? Torn between the A10-Lime and the RPI. Considerations include:

   
• Availability of RS485 adapters or GPIO
• Ability to "come up running" and not having to load an OS
• Availability of third party independent developers to help out
• Ability to reuse portions of the proven Arduino C code