Mesa 7i39+5i20

Ah, yes, of course, I should have thought of that myself

nikos.chalikias wrote:

IF YOU HAVE STOPPED DEVELOPING bldc_sine
Is it good idea that I continue trying with your new component "bldc" ????

Possibly, yes.
It would be a good idea to switch over if your motor has Hall sensors, as the new component can start in Hall mode, and then switch to sinusoidal mode as soon as it has an angle fix. This removes the need for the "init" pin and is likely to work a lot better with stiff/heavy axes.

I am hoping to submit the driver to the project today, but if you want to try it out, I have attached it.

If you load it within the hal file then you should get something which looks exactly like bldc_sine (with a couple more pins)
if you load it withthen you will get two of them with extra pins for hall-sensor startup.

You will need to comp --install the new component, but it can co-exist in the system with bldc_sine and bldc_hall3.

man bldc should give you more information once it is installed. I would welcome any feedback or bug reports.

nikos.chalikias wrote:

Does this mean that with: git pull
I will get new EMC2.5 source including your new bldc component?.

Eventually, yes, though it is anybodies guess when.

Until Andy gets it into master you can just copy the comp to the same directory as the rest of the comps and build EMC2.

John

nikos.chalikias wrote:

I have placed bldc.comp to ~/emc2-dev/src/hal/components
then I compiled emc2.5 as below

Rather embarasssingly I found out yesterday that changes I had made to get the 8i20 to reverse properly had left the 7i39 not reversing at all (reversing the phase angle and the current == no change)

The fixed version should be available here:
news.gmane.org/gmane.linux.distributions.emc.devel

./autogen.sh
./confugure
make
make install-menus
sudo make setuid
WAS THIS NEEDED?

No, you should just need "make" for a new realtime component

"sudo comp --install bldc.comp"

That also works (and is the only way to do it if you don't have the full source tree)

seems that worked but there are warnings

I think you can ignore those, I get them too and it all works.

I don't know why it has that name. very odd.

Rename it to bldc.comp and I think it ought to work. Sorry that this is turning out so difficult.