CLKIN frequency too low: 0.001 < 0.002

General Discussion
1

Basic Information:

Printer Model: Custom
MCU / Printerboard: Manta M8P, Mellow SHT36v3 Pro with CAN bus setup
Host / SBC: CB1
klippy.log

Describe your issue:

with version v0.13.0-557-g54c7b65d5, the eddy tap was working after update to version v0.13.0-641-g2239041df, its failing at calibration

PROBE_EDDY_CURRENT_TAP_CALIBRATE TAP=guess

Tap probing with TAP_THRESHOLD=825.026 SAMPLES=1

Eddy: CLKIN frequency too low: 0.001 < 0.002

[probe_eddy_current fly_eddy_probe]
sensor_type: ldc1612
descend_z: 2.5
i2c_address: 43
i2c_mcu: sht36v3
i2c_bus: i2c1e
x_offset: 0.00857
y_offset: 28.58943
i2c_speed: 4000000

…

klippy.zip (1.6 MB)

2

SHT36v3 has a 40MHz oscillator for LDC1612.
So, you have to set the

[probe_eddy_current fly_eddy_probe]
frequency: 40000000

-Timofey

3

Thanks @nefelim4ag, I tried with frequency: 40000000, with this value, z homing fails with below error

Endstop stepper_z still triggered after retract

when I revert to the default value, homing is normal.

4

You have to redo the PROBE_EDDY_CURRENT_CALIBRATE after you fix the frequency.

5

Thanks @nefelim4ag , that worked. Now I get the following error

Unable to detect tap: insufficient lift (0.211875 vs 0.350000)

Tap probing with TAP_THRESHOLD=3501.774 SAMPLES=1

PROBE_EDDY_CURRENT_TAP_CALIBRATE TAP=guess

6

@nefelim4ag , thanks a lot I had to set position_min in stepper_z config to a negative value to get it working.