Re: [Paparazzi-devel] Can a Lisa/* drive more than 7 PWM outputs?

[Piotr Esden-Tempski]

Hi,

The 8PWM outputs are only available if you are not using i2c1. Otherwise you 
only have 6 outputs available.

Another way of getting even more servo outputs is using Lisa/M as a CSC (CAN 
servo extender). There was a dedicated hardware for this and there is LPC 
software for it. It could probably be ported very easily to Lisa/M.

Cheers Esden

On Mar 8, 2012, at 11:24 AM, Simon Wilks wrote:

> I just noticed that the Lisa/M 2.0 is advertising 8 PWM outputs and still has 
> i2c1 and i2c2. A post from Antoine over a year ago 
> (http://lists.gnu.org/archive/html/paparazzi-devel/2010-11/msg00118.html) 
> mentioned being able to provide 8 PWM outputs at the expense of the i2c1 pins 
> if it would be needed. Can the Lisa/M 1.0 do this too?
> 
> Simon
> 
> On Wed, Mar 7, 2012 at 1:30 PM, Simon Wilks <address@hidden> wrote:
> Is it possible to drive more than 7 PWM outputs on the Lisa/M or L using, for 
> example, the 3 generic digital outputs?
> 
> I have noticed that the STM32 based OpenPilot provides 6 output headers but 
> lets you reconfigure 4 of the PWM receiver input ports as output ports giving 
> up to 10 outputs. More infos here: 
> http://wiki.openpilot.org/display/Doc/CopterControl+Hardware+Manual
> 
> Simon
> 
> 
> 
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