Re: [Paparazzi-devel] ADC Codes

[Gautier Hattenberger]

X and Y should be replaced by the ADC number on your tiny board. So for 
you :

-DUSE_ADC_5 -DUSE_ADC_6 (you probably have some flags already set if you 
are using IR sensors)
-DADC_CHANNEL_GENERIC1=ADC_5 -DADC_CHANNEL_GENERIC1=ADC_6

You don't care about the ADC bank, it is describe in a header in 
conf/autopilot.
For example in tiny_2_1.h:67, ADC_0 is on bank 1 pin 6 and the flag 
USE_AD1_6 is defined for you.

Gautier


Brendan Chen a écrit :
> Thanks for the reply Gautier, something I dont quite understand, with the ADC_X 
> and ADC_Y, are they suppose to be 0, 1 or 2 or are they suppose to be AD0_X and 
> AD0_Y if I'm using ADC0? For my case I'm using channel 5 and 6 of ADC0, how 
> should I activate that?
>
> Should I put '...-DUSE ADC_0_5 (and ADC_5_6) or should i put '...-DUSE AD0_5 
> (and AD0_6)'?
>
> Thanks
> Kind Regards,
> Brendan
>
>
>
> ________________________________________
> From: address@hidden address@hidden On Behalf Of Gautier Hattenberger 
> address@hidden
> Sent: Friday, 3 October 2008 2:07 AM
> To: address@hidden
> Subject: Re: [Paparazzi-devel] ADC Codes
>
> Hi,
>
> If you just want to read the value of some ADC from the ground, you just
> need to use the "adc_generic" code. This will automaticaly send 1 or 2
> adc values (you can read them with the messages application).
>
> To use this code:
> ap.CFLAGS += -DUSE_ADC_GENERIC -DADC_CHANNEL_GENERIC1=ADC_X -DUSE_ADC_X
> [-DADC_CHANNEL_GENERIC1=ADC_Y -DUSE_ADC_Y]
> ap.srcs += adc_generic.c
>
> where ADC_X and ADC_Y are of course the channel you want to read !
>
> (maybe a flag is missing, let me know if it doesn't work)
>
> Gautier
>
> Brendan Chen a écrit :
>   
> > Hi all,
> >
> > What kind of ADC codes should I use if i just simply want to plug in an analog 
> > voltage from sensors?
> >
> > And I would like to transmit that converted value to the GCS, I have the 
> > receiving end sorted ( I think ) but I was wondering if an of the xml files I 
> > may need to simply modify to get the ADC to work with a specific channel.
> >
> > Also how would I connect the converted value and get that sent via wireless 
> > downlink?
> >
> > Thanks
> >
> >
> > Kind Regards,
> > Brendan
> >
> >
> > _______________________________________________
> > Paparazzi-devel mailing list
> > address@hidden
> > http://lists.nongnu.org/mailman/listinfo/paparazzi-devel
> >
> >     
>
>
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