Remora 1.0.0_rc released for testing

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06 Nov 2021 17:58 - 06 Nov 2021 18:02 #225512 by Aaroncnc
Well most out boards I think use 0-3.3v pwm logic
In my config tool the voltage is up to the user I use an aftermarket board to convert pwm to analog 0-10v

m.aliexpress.com/item/4000128019142.html...081f5819cf2d5&gclid=

Depends on what pin you use. I drive mine from a gpio pin not using one of the fan or heater outputs.

So the config tool right now just makes pwm. Maybe I should make that more clear.

Using the heaters for the pwm control is a problem in my setup as they are low side driven vs high.
Last edit: 06 Nov 2021 18:02 by Aaroncnc.

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06 Nov 2021 22:21 #225535 by scotta

Thanks. Are you going to post it here or git?

Run away can happen for a few reasons. Most common is hardware failure such as thermistor wire develops a break or comes lose/ separates from the device being heated.

Without any watch dog it will keep trying to heat until it destroys itself.
This would be best done at the lowest level that if the heater is not responding it would give up vs going forever.

The Remora thermistor module already has some basic protection for a broken / disconnected sensor. When disconnected the thermistor calculations output a negative number, which cannot be possible in real life. In this condition the logic then outputs a stupidly high 999degC which is also not possible. Any PID controller seeing this quickly sends the SP command to zero.

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06 Nov 2021 23:18 #225539 by Aaroncnc
What about if the thermistor becomes separated from the object being heated?

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07 Nov 2021 17:11 #225563 by Cncninja
I gave your config app a shot, very nice!!. for the trimac 2209 is there a way to add the stall guard home option.?

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07 Nov 2021 17:20 #225564 by Cncninja
the SKR2 is the same price as the octopus for me, any thought on this board? it has a 32-bit ARM Cortex-M4 series STM32F446ZET6

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07 Nov 2021 20:32 #225579 by scotta

the SKR2 is the same price as the octopus for me, any thought on this board? it has a 32-bit ARM Cortex-M4 series STM32F446ZET6

Cakeslob has this board and has been testing it. There is a bin file for it in the repo. It's still unclear if it's working correctly as I cannot test it myself. The clock settings are different to the F407 to get the 180Mhz clock. However the SKR2 bin will work, just at 168Mhz.

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07 Nov 2021 20:33 #225580 by scotta

I gave your config app a shot, very nice!!. for the trimac 2209 is there a way to add the stall guard home option.?

This is one feature of the TMC drivers I have not tested and would need some work.

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07 Nov 2021 21:20 #225586 by cakeslob

the SKR2 is the same price as the octopus for me, any thought on this board? it has a 32-bit ARM Cortex-M4 series STM32F446ZET6

Its pretty sweet, seems nicely done. I have the v1.1 (they just came out with another 2 versions the pro446 and pro429) I like that you can do 1 12-24v input for inductive sensor. I was lookin to pick up a fsystec spider to test because its got a few more 24v capable inputs and uses the smaller 446

the SKR2 is the same price as the octopus for me, any thought on this board? it has a 32-bit ARM Cortex-M4 series STM32F446ZET6
Cakeslob has this board and has been testing it. There is a bin file for it in the repo. It's still unclear if it's working correctly as I cannot test it myself. The clock settings are different to the F407 to get the 180Mhz clock. However the SKR2 bin will work, just at 168Mhz.



Everything short of compiling for the 407 does not work. Systematically trimming down the target_octopus to be the same as skr2, and to the point where it is the same as skr2 but compiled for 446 does not work. They all compile and load the firmware but no signs of life. So far the only thing that works is skr2 firmware with octopus config.txt . All the other firmwares (marlin/klipper/rrf/other 446ze mbed projects) as reference,everything seems the same as whats in the target. Tried a few clock configs to try and match skr2, but my knowledge is limited on the topic. Operating blind seems insane, but if it works with 407 compile, it should be close to working as 446 shouldnt it?

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07 Nov 2021 23:28 - 07 Nov 2021 23:29 #225599 by Aaroncnc

Cncninja post=225563 userid=28123I gave your config app a shot, very nice!!. for the trimac 2209 is there a way to add the stall guard home option.?


I can definitely add more options and features as they come. i was unaware Stall sensitivity  was implemented.

Scotta, Can you let me know if this is in?
Also any luck with the config samples? 
Did you use my main branch of the config tool or alpha branch?
Last edit: 07 Nov 2021 23:29 by Aaroncnc.

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10 Nov 2021 16:32 #226006 by Doogie
Good idea added the SPI connectivity section but shouldn't it include a list of all the boards which are supported besides the latest port to STM32?

remora-docs.readthedocs.io/en/latest/hardware/hardware.html

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