On Saturday 09 December 2017 05:59:58 andy pugh wrote:
> On 9 December 2017 at 04:06, Gene Heskett <[email protected]> wrote:
> > So I
> > tried to invert_output on gpio.001, which ack the above, should have
> > done it.
>
> Yes, I agree, it should.
>
> So, did it?
No, it cut the amplitude to about a volt, but did not invert it.
>
> What does
> halcmd show param *gpio.001*
> tell you after the system has launched?
Didn't look. And its not in a condition to be safely powered up until
i complete the reversal at the pulse input to the pwmservo amp. But that
shouldn't need power on anything but the 5i25 for that test.
gene@GO704:~/linuxcnc/configs/GO704fast$ halcmd show param
hm2_5i25.0.gpio.001
Parameters:
Owner Type Dir Value Name
This is with lncnc running, but not power on the box of drivers etc.
However if I run show config, and select the 5i25, I can see this if it
will copy/paste:
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out0.invert_output
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out0.is_opendrain
12 bit RW TRUE hm2_5i25.0.pwmgen.00.out1.invert_output
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out1.is_opendrain
12 s32 RW 1 hm2_5i25.0.pwmgen.00.output-type
12 float RW 46 hm2_5i25.0.pwmgen.00.scale
12 u32 RW 0x00004E20 hm2_5i25.0.pwmgen.pdm_frequency
12 u32 RW 0x00004E20 hm2_5i25.0.pwmgen.pwm_frequency
However, commenting that line back out of the hal file and rerunning
lncnc, I get this:
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out0.invert_output
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out0.is_opendrain
12 bit RW TRUE hm2_5i25.0.pwmgen.00.out1.invert_output
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out1.is_opendrain
12 s32 RW 1 hm2_5i25.0.pwmgen.00.output-type
12 float RW 46 hm2_5i25.0.pwmgen.00.scale
12 u32 RW 0x00004E20 hm2_5i25.0.pwmgen.pdm_frequency
12 u32 RW 0x00004E20 hm2_5i25.0.pwmgen.pwm_frequency
IOW, no change
So, lets see if this will work instead:
setp hm2_5i25.0.pwmgen.00.out0.invert_output true
No change, I half expected an init error
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out0.invert_output
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out0.is_opendrain
12 bit RW TRUE hm2_5i25.0.pwmgen.00.out1.invert_output
12 bit RW FALSE hm2_5i25.0.pwmgen.00.out1.is_opendrain
12 s32 RW 1 hm2_5i25.0.pwmgen.00.output-type
12 float RW 46 hm2_5i25.0.pwmgen.00.scale
12 u32 RW 0x00004E20 hm2_5i25.0.pwmgen.pdm_frequency
12 u32 RW 0x00004E20 hm2_5i25.0.pwmgen.pwm_frequency
So I guess I go about finishing the inversion of the drive to the opto.
Since that output on the bob was drive to the relay's coil, I may take
the 2nd of them, I bought two, and do the same relay removal to it, but
see if I can cut & paste to invert it. Maybe even paste a transistor on
the bottom to do it. All the other signals are apparently sink when
true. Direction works normally.
As Jackie Gleason was fond of saying, what a revolting development that
is. ;-) Jackie was something else on a billiards table too.
But I am out of metformin which is the first thing I need to fix this
morning. And no dammed refills left. I have no clue why they don't write
the rx for enough refills to match the expiration date of the rx, which
is another 11 months at 60/month. And the auto refill computer says at
least one business day. Hell of a way to run a train. OTOH, I should
have called mid-week.
Thanks Andy.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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