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hitsware
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Joined: 23/11/2012
Location: United States
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Posted: 02:15pm 22 Jun 2014

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CMM

I just upgraded from 4.1 to 4.5 and now
PWM does not stay running
It does work, but only if I put it in a
loop ...... ?????
The change log says something about the
commands have changed, but I see nothing
reflected in the manual ???

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6220

Posted: 02:41pm 22 Jun 2014

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It seems to work OK for me.
I tried a single line
PWM 2000, 10, 50
and
PWM 20000, 10, 50

on a CMM (UBW32) and the main program ran as normal

It looks like the order of CH1 and CH2 were swapped in the change to V4.5 but I can't see any other differences apart from some changes made to make a PWM change in duty cycle less 'jumpy'

What settings are you using?

Jim

VK7JH
MMedit

hitsware
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Posted: 04:29pm 22 Jun 2014

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> I tried a single line
> PWM 2000, 10, 50
> and
> PWM 20000, 10, 50

on a CMM (UBW32) and the main program ran as normal

BUT !

Did you have PWM output !?!?!?

TassyJim

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Posted: 04:52pm 22 Jun 2014

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hitsware said >
BUT !

Did you have PWM output !?!?!?

Yes.

The first channel (CH2) was on the right audio out and the second (CH1) was on the left audio out.

I think that the channels have been swapped.

Jim

VK7JH
MMedit

Geoffg

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Joined: 06/06/2011
Location: Australia
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Posted: 05:27pm 22 Jun 2014

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I don't have the code with me to check but it could be that the PWM output is stopped at the command prompt.

Are you running the PWM command in a program or at the command prompt?

Geoff

Geoff Graham - http://geoffg.net

TassyJim

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Posted: 05:41pm 22 Jun 2014

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The PWM stops when the program stops.
I test with Ctrl-C.

I am not sure what happens when the program stops with an error.

Jim

VK7JH
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hitsware
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Posted: 04:56am 23 Jun 2014

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Circuit Gizmo ColorMax ..... 4.5

At boot up prompt

PWM 10000,50,50

works ....
If I

LIST

and then

RUN

it kills it ....
OR if I

EDIT

and then

RUN

It won't work again until I do

NEW

I'm sure it was OK with 4.1 because I was using it just before upgrade.
I seem to remember something similar with 4.4, but I'm not sure .....

hitsware
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Posted: 09:07am 23 Jun 2014

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FWIW

4.4 on DuinoMite Mega acts the same

Using line numbers gets rid of problem .

Geoffg

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Posted: 04:43pm 23 Jun 2014

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I am not sure what the problem is. The NEW and RUN commands reset the state of the interpreter. Is this what is concerning you?

Geoff Graham - http://geoffg.net

hitsware
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Posted: 05:58pm 23 Jun 2014

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As I understood the PWM command
( and it seemed to work w/ver 4.1 )
PWM turns on a hardware oscillator
with output parameters that can only
be modified by further PWM commands ...
I.E.........
PWM 1000,50,50
should result in 1kHz squarewaves on
left and right pwm output pins until
another PWM command
As it is now any doings (for lack of a better term)
with the program turns off the free running timers ....

Geoffg

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Posted: 06:18pm 23 Jun 2014

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Well (without going through the source) I don't think that this aspect has changed. And anyway, the PWM command is supposed to be used in a program, so what does it matter if the NEW and RUN commands stop it?

I suspect that this is must be a misunderstanding due to our different customary languages.

Geoff

Geoff Graham - http://geoffg.net

hitsware
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Posted: 01:37pm 24 Jun 2014

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Thank You Geoff ,

Today everything seems fine :) Perhaps I wasn't holding my mouth right .
Besides upgrading the version , I switched back from using a PC terminal
to straight in and out of Maximite board . Gives everything a little differant
' feel '

MegaRegards ,
Michael Miller

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