Lathe Spindle Encoder

I might have a bad decoder, I may have wired it up wrongly.I thought first I would check here to see if I have made any errors in the ini or hal files :

Thanks for looking image missing /media/kunena/emoticons/smile.png

Long story short.

I have one of these:
www.ia.omron.com/data_pdf/cat/e6b2-c_ds_e_6_1_csm491.pdf?id=487

6C version

Decided to check that was still working by hooking up the micro controller I used to test it when I received it. Step 1 find the code I used. I'm glad I take copious notes "input must be pullup and ground that bare wire like you really mean it" why didn't I remember that?

Examined C10 board jumper says "inputs 1-2 pull down 2-3 pull up" moved jumper to 2-3 and voila <hello world> It works but further testing to make sure it works properly is needed.

<sorry for the noise>

I could have changed the jumper on the 7c81, the C10 was easier to get to, I now have inputs 10 upwards as pull up.

Which made me wonder if I could have just selectively changed 10, 11, 12 to pull up leaving the rest alone.

How about it could I use HAL to do that to a real pin and allow it to go low in response to a real signal?

"How about it could I use HAL to do that to a real pin and allow it to go low in response to a real signal?"

You can change the polarity of input signals. but if an input requires a pullup or pulldown resistor,
that's typically determined by the interface hardware, not software.

Thanks,

That makes sense.