Re: [Paparazzi-devel] PPM input and trigger_ext module

[Eduardo lavratti]

I am using B.I.O tech low flow meter 0.015 - 0.8l/m

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From: address@hidden
To: address@hidden
Date: Sat, 20 Sep 2014 10:10:50 +0300
Subject: Re: [Paparazzi-devel] PPM input and trigger_ext module

Hi Eduardo,

 

Which sensor do you use for gasoline meter?

 

From: address@hidden [mailto:address@hidden On Behalf Of Eduardo lavratti
Sent: Saturday, September 20, 2014 2:07 AM
To: Paparazzi developer forum
Subject: [Paparazzi-devel] PPM input and trigger_ext module

 

Today i finished the gasoline meter module.
It work using TRIGGER_ISR

I configured it do use capture channel 0 and it work fine if i choose radio as datalink.
When i configure the radio to ppm mine module stop do count pulses.

To solve it i changed the line
T0CCR = TRIGGER_CRR | TRIGGER_CRI;
to
T0CCR |= TRIGGER_CRR | TRIGGER_CRI;

Looking at ppm_arch.c i see that ppm not use |= when configuring T0CCR register.

I think the correct is to use
        T0CCR |= PPM_CCR_CRR | PPM_CCR_CRI;
not   T0CCR = PPM_CCR_CRR | PPM_CCR_CRI;


i am right ?

another question, how i do to know what capture channels are used in lpc firmware ?

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