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www.mesanet.com/software/parallel/7i97t.zip
 (in 7i97t/configs/hostmot2)

You use mesaflash to update the firmware, examples of mesaflash usage
should be in the 7I97T manual

you can get some inspiration here:
github.com/zmrdko/3dworks_ethercat_lcec/

you can start by adding:

loadusr -W lcec_conf ethercat-conf.xml
loadrt lcec

to you hal file, so that you initialize the ethercat device.

You should see lcec item in pins in HAL configuration window then.

Okay that sounds like less hassle than editing bitfiles. How can I install this different firmware and where can i get it?

sqmathlete wrote:

Hi Rod,

I followed these instructions several times  and, everything worked perfectly. Tried to install today and I get an error saying that no public key is available. Any idea if something has something changed? This is a fresh install of the Debian buster Linuxcnc iso.

Kind regards,
Dan
 

run this:

You install 7i97t_7i85d.bin firmware on the 7I97T and
the definition of the P1 pins changes.

(In the default firmware: 7i97t_7i85d.pin, all P1 pins are GPIO)

Back to the thread...
My buttons to manual turn of carousel from custom_postgui.
#Przyciski do karuzeli Fwd/Rev
net car-btn-fwd => carousel.0.jog-fwd  => pyvcp.carousel-f
net car-btn-rev => carousel.0.jog-rev  => pyvcp.carousel-r
Second connection is in the toolchange_index
loadrt carousel pockets=12 encoding=index num_sense=4 dir=2
loadrt conv_float_s32 count=2
addf carousel.0 servo-thread
addf conv-float-s32.0 servo-thread # G-code analogue outputs are float-type
net car-enable   motion.digital-out-00   carousel.0.enable
net car-ready    carousel.0.ready        motion.digital-in-00
net car-pos-req   motion.analog-out-00   conv-float-s32.0.in
net car-pos-s32   conv-float-s32.0.out   carousel.0.pocket-number
# Carousel forward
net car-fwd carousel.0.motor-fwd              =>   hm2_5i25.0.7i77.0.0.output-12 => 
#Carousel reverse
net car-rev carousel.0.motor-rev              =>   hm2_5i25.0.7i77.0.0.output-13 => 
 

yes it needs to be +-10VDC , a typo.. the pwm comes from the i80 yasnac controller..

Ok is that something that is already on the card and just needs to be activated? Will the other Pins retain their functions (does this only change the expansion connector)?

Thank you for the quick reply

You would need a MX4660 +7I77 firmware configuration
for the 7C81. I can make one if that's whats really desired.

You could use  7I97T firmware for a 7I85 configuration. This includes
5 additional channels worth of sserial interfaces:

7i97t_7i85d.bin

 

Hello Everyone!
I'm new on Forum but thanks to Yours knowledge You share on forum which I'm very thankful for,  I built my own cnc machine (I'm during completing mechanical parts), but looks that software it working as it should (Z axis already built - the hardest). I'm wondering if someone built up with success configuration rpi4 + 7c81 + 7i77 + mx4660, because I want improve positioning. I'd like to not changing config of current set but only add 7i77, could someone advise me how to do that and if its working at all as it should?
Thank You in advance
Best Regards

Hello,

moving along in my retrofit I got all 3 axis, the spindle and also the 3 jog handwheels to run on my machine using a 7i97t and a 7i84d connected to the standard smart serial output. Now I want to add a 7i73 in the control panel to connect all my physical buttons and encoders on the control. For that card I need an additional smart serial channel which the standard 7i97t does not have.
I was told in an earlier post that I can edit the bitfile on the 7i97 to add rx and tx pins to the unused expansion port. I have already made an convertor board to take these signals and convert them to smart serial as shown by talla83 in this video.

to use these 2 additional channels the bitfile needs to be modified to have 4 pins on the P2 expansion connector give 2 rx and tx signals each.

My question is how to do that since the manual of the 7i97 informs me that loading wrong bitfiles will brick the card.
What steps do I need to follow?

The mist buttons use labels that change when pressed.
The spindle buttons use text that does not.
There are separate properties for each technique.

Try this:

What will be producing the PWM signal?
You can easily make a crude PWM to analog converter with a resistor and capacitor that will be good enough for testing stuff, but for 0-10V it would also need a transistor and another resistor and a 12V power from somewhere.
And just to be clear, modern and old servo drives use +-10V, not 0-10V, so that is another can of worms altogether.
VFD use 0-10V, most new-ish ones can also be programed to use 0-5V so no need for any conversion.