Subject:
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Re: brickos-0.2.6.10 CONF_DSENSOR_MUX problem
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Mon, 19 May 2003 21:09:42 GMT
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Viewed:
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3402 times
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I tried the following program and it seems to be doing something
useful with the sensor power. I looked at it on the scope and
it generates a regular pattern with 10ms pulses. I don't have one
of these sensor mux devices so I can't actually tell if it is working,
though.
Mark
#include <dsensor.h>
int main()
{
ds_mux_on(&SENSOR_1, 10, 10, 10);
while (1);
}
"Bernhard Powolny" <b.powolny@mobilkom.at> wrote in message
news:HEx1zF.117@lugnet.com...
>
> After I have done the changes desribed in
> thread: http://news.lugnet.com/robotics/rcx/legos/?n=3266
> Subject: brickos-0.2.6.10 .text is not within region ram
> now i can compile the kernel with CONF_DSENSOR_MUX.
>
> But the DSENSOR_MUX does not work.
>
> I have checked this item with an osciloscope on the INport of RCX.
> The switching is not working (sensor in avtiv for 10ms /passiv 10ms and so • on).
>
> To test this stuff without having an osziloscope almost everybody can do
> that with the PC and a soundcard.
>
> 1) description of the simple curcuit:
> RXC port has activ about 7 V .
> The input of a soundcard (called AUX or LINEIN ) need approx. 700mV • (it
> is more or less the same voltage you need fon taperecorder or • preamplifieres).
>
> So you need 2 resistors drop down the volatage from 7V to 0.7 V
>
>
> 100 KOhm
> ___
> 7V ----I___I---------------------- 700 mV to AUX/line input from • soundcard
> |
> port --
> from I I
> RCX I I 10 KOhm
> I I
> --
> |
> ------------------------------- to GND input from soundcard
>
> 2) you need a windows program for recording (eg Soundforge) and to • visualize
> the *.wav file.
>
>
> best regards Bernhard
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Message is in Reply To:
 | | brickos-0.2.6.10 CONF_DSENSOR_MUX problem
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| After I have done the changes desribed in thread: (URL) brickos-0.2.6.10 .text is not within region ram now i can compile the kernel with CONF_DSENSOR_MUX. But the DSENSOR_MUX does not work. I have checked this item with an osciloscope on the (...) (22 years ago, 15-May-03, to lugnet.robotics.rcx.legos)
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