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This will because PATH.find_image_path() returned nothing.
Can you give any more information?

Cant do this anymore bye all wrote:

When setting the baud rate (divisor) on a 8250 or the later variants it will always be tied directly to the time allowed for each bit.
 

Lol yeah, that's how all asyncronous serial works. What do you think you are setting when you set "115200" on a COM port? Divide that baud rate into 1 and get the "time allowed for each bit". It's just easier to ask people to set the baud rate on the COM port than it is to say "gimme the period of time in us/ms". Anything that happens a specific number of times within a second is a period, you just forgot to do the division.

Yeah sure there are serial protocols the will define a zero has being so many us and one has being another value, which no one has yet to mention, but each period for either 1 or 0 will be an absolute value. 

Like what? What protocol is that? That would literally be something that has no predefined data rate because the rate you can transfer data specifically relies on the difference between how many 1s are in that package vs how many 0s are in that package.

Morse code is not a serial protocol, it's a method of spelling the alphabet by using human understandable events, like flashes of light or sound. There is no precise timing involved, just perception. You can't perceive the difference between 1us and 1ms and a machine would have a hard time trying to figure out what the hell some outrageously long and inconsistent "dot" is.
 

Cant do this anymore bye all wrote:

Easier than trying to edit a post.

My fork was way out of date to create a pull request and I've kind of forgotten the code structure of the Image generating program. So I started a new thread asking if the next round of images could have the spi interface enabled, I also mentioned that you were a very patient user that had been lead astray by the spidev10.0 being created with the SPI interface, I guess it would be a idea to refer to it as the SPI user usable interface.

I think it would be an idea just to keep it to that topic alone, rather than requesting other software packages and mind reading abilities to be added (rod has declined the mind reading abilities on previous occasions). Tho to be fair in would be quite unkind for the poor old Rpi to read my mind.....I barley know what direction it is going.

That sounds great, I am including this specific callout in the write-up that I am making (specifically for the 7c80, geared towards the Pi5). Since a start to finish guide doesn't exist in any single document.

I been wanting a small Cnc lathe for awhile now.
One of my requirements was to have its own stand / enclosure.
I was mainly interested in just the iron.
My initial plan was to strip and rebuild it mechanically and electrical.
I looked at different controller mach3 (old) Mach 4 ( buggy I heard) acorn (expensive) masso ( only does x and y)
Found grizzly 924 on fb marketplace for cheap and the guy even delivered it.
The closer I looked at the fuzzy pictures I realized it already had a mesa card it it with two expansion cards.
So this is my intro to Linuxcnc. 
first steps
1: clean it 
2: put it on wheels 
3: power only the motherboard and replace battery.
4: bring up the 220 mains.
5: see it the old controller still starts up.







 

If you have measurment of the z distance you can use the hal compare component.

linuxcnc.org/docs/stable/html/man/man9/comp.9.html

otherwise install a limit switch to send a signal to inhibit the laser.

My machine has a 5i20 card on the motherboard.I don’t see that card option on PcConfig.

Do I have to add it somewhere

thanks john 

 

I have a Bridgeport R2E3 mill that I gutted and followed the instructions from a Fellow on line RustyBrainDump.com did everything step by step but having problems. He is not available to answerquestions anymore. Started this process in 2022 and stopped. My wife has medical issues now. So home bound now trying to return with this project. Have analog Encoders that are on 80vdc brush motorold school machine. have 3 Gecko 320X drivers ST-3V breakout board.  Most folks say that I Should of used7i77/7i77e and Daughterboard? Using Linux CNC, 150 chopper wheel count Analog encoder. 5vdc input 50-200ma. Do anyone know that converted a CNC R2E3, 4000lbs machine. I would hate to stop now.Tony K Omaha NE

 

Would this device or something similar be of help 

Easier than trying to edit a post.

My fork was way out of date to create a pull request and I've kind of forgotten the code structure of the Image generating program. So I started a new thread asking if the next round of images could have the spi interface enabled, I also mentioned that you were a very patient user that had been lead astray by the spidev10.0 being created with the SPI interface, I guess it would be a idea to refer to it as the SPI user usable interface.

I think it would be an idea just to keep it to that topic alone, rather than requesting other software packages and mind reading abilities to be added (rod has declined the mind reading abilities on previous occasions). Tho to be fair in would be quite unkind for the poor old Rpi to read my mind.....I barley know what direction it is going.

OK I know I'm being lazy by not creating a pull request, but is there any chance that when the images are generated that the SPI interface could be enabled by the config.txt file. Just to make life easier for new users.

Even when not enabled device node spdidev10.0 is still created, not sure what this is for but pretty sure that the GPIOs related to this node aren't exposed, I'd guess it is something internal for the Rpi. One very patient user was lead astray by this.

So if this is possible. I know the time it takes to create an image so please don't take this as a demand that must be acted on riht away.
All The Best

Honestly I forgot about the 10.0 entry. I really should have qualified this spidev0.xx & spidev1.xx.

Thanks for pointing this out.

Like anything on this forum people will overlook, not bother with it or a hundred other things that will make their life a misery. Look I used to make Mint based linuxcnc images, even including a READ.ME on the desktop people would still not bother to read it & ask the same questions over & over again, even aft they had been answered in the thread. Even updating the open post of the thread discussing these things didn't help.

Actually I'll jump over to Rods github and propose that the spi overlays are enable in the generated images. I really should have done this last year when they were originally being prepared.

There have been attempts run Linuxcnc on Rockchip platforms.
Unlike gaming raw graphics throughput isn't a great concern.

The key to a successful Linuxcnc system is tasks happening at dependable and regular intervals., which doesn't always equate to raw clock speed. The Begle Bone Black was quite capable running Machinekit (a fork of Linuxcnc that has gone very quiet) using the on board PRUs for generating the required signals. This is a board with a 1Ghz arm proc and 512MB ram. Ran very well with Debian Wheezy.

And whilst SBC are intersting in the broader computing world, best bang for buck appear to be 2nd hand ex corporate PCs. They are cheap and provide a very easy entry for most users.

Cant do this anymore bye all wrote:

No but it has been mentioned multiple times in multiple places (pretty sure I have mentioned it myself in this thread, maybe my posts are too long), why it isn't enabled by default is only something those that produce the images can say. I was a advocate for enabling it by default and disabling BT & sound

Or at least this should be mentioned on the download page, but people being people they can be lazy and only want the goodies or they only follow links to the actual downloads.

As you can see there is only one spi device interface that the 7c80 will respond to without a custom cable.

On a Pi <5, if you see anything in /dev/ spi*, spi is enabled...
Seeing as how i didn't have another pi5 with it already enabled to compare /dev/spi* to, it is a fair assumption for folks to make.
At the least, this needs a note/callout.

No but it has been mentioned multiple times in multiple places (pretty sure I have mentioned it myself in this thread, maybe my posts are too long), why it isn't enabled by default is only something those that produce the images can say. I was a advocate for enabling it by default and disabling BT & sound

Or at least this should be mentioned on the download page, but people being people they can be lazy and only want the goodies or they only follow links to the actual downloads.

As you can see there is only one spi device interface that the 7c80 will respond to without a custom cable.

Fuck there goes my new year's resolution, getting caught up in stuff like this.