> On Feb 2, 2017, at 4:37 AM, Heinz Hummel <[email protected]> wrote:
> 
> As far as I remember AM3358 TRM this is not possible in software.
> 
> And it is somewhat amazing this should be necessary - what kind of hardware 
> do you try to control with the UART interface?

Not sure if this is the case in question, but many so-called S.BUS interfaces 
for RC radio receivers use an inverter on the input of a UART. 

https://github.com/cleanflight/cleanflight/blob/master/docs/Rx.md

I'd guess the best solution is a soft UART on PRU, but would love to hear ideas 
about software bit inversion or other UART based solution. 

> 
> Am Mittwoch, 1. Februar 2017 18:51:15 UTC+1 schrieb DragosP:
>> 
>> Hello,
>> 
>> I need to invert the level of my UART from software, any idea how I can do 
>> that?
>> I'm running on BBB, Debian 8 kernel 4.4
>> 
>> Thank you.
> 
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