Timer Too close during input shaper - MCU at 60%

[alpine silo]

Trying to run input shaper and am getting the dreaded tcc error.

I have disabled crowsnest, led effects, klipper screen to free up cpu.

Monitored the bbt pi2 with htop to view cpu usage and it is crashing out at 61% usage?

Here is the log

Here is a screen recording of it happening

my config

[alpine silo]

I just flashed everything from the sd card onto the eMMC thinking maybe bad sd, same result

[alpine silo]

Thinking its a CAN communicating issue, I have tried to input shape with a mellow usb adxl, same issue.

[inner timber]

https://canbus.esoterical.online/troubleshooting/timeout_during_homing_probing.html#cpu-affinity this might be worth going through (as well as the other tips on that page)

[errant ibex]

Hey mate, I also was getting occasional TTC during input shaper runs as well as occasionally during printing. Lately it become more frequent and the thing that has seemed to help the most is giving Klipper its own CPU cores to run off, which should technically help with the timing of instructions/latency not be interrupted.

You can find instructions on how to do that on Esotericals Guide posted above. I'm only 15hrs in with no errors so far, but was previously getting them every 3-4hrs or so (very roughly)

[broken maple]

its been 22 days, how are things going? any update for us? 🙂

[alpine silo]

I had to drop the micro steps down to 16 to stop the ttc error :/

[broken maple]

Btt pi is weak, thats a known issue

Anyways

That means we can make this as solved?