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Re: [Paparazzi-devel] sbus and sbus_dual


From: Christophe De Wagter
Subject: Re: [Paparazzi-devel] sbus and sbus_dual
Date: Fri, 18 Apr 2014 13:56:35 +0200

Beware that the serial signal of SBUS receivers is inverted (low at rest, while usart is high at rest).

You need either an apogee board (which has inversion built-in) or an own inverting board. 

-Christophe 


On Fri, Apr 18, 2014 at 11:06 AM, 孙茂峰 <address@hidden> wrote:
I noticed there's a wiki update about sbus(http://wiki.paparazziuav.org/wiki/Subsystem/radio_control#SBus)
Is the configuration supported by lisa/m? 
I wired  futaba reciver s.bus to UART1 and the config is like:
...
<subsystem name="radio_control"     type="sbus">
  <configure name="SBUS_PORT" value="UART1"/>
</subsystem>
the PPM message is 12 chanles of 0
0,0,...,0
How to debug the s.bus RC input?
Many thanks.
smf

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