PnCConf and setting up PWM on 7i96

No problem;

26 bit IN TRUE hm2_7i96.0.pwmgen.00.enable
26 float IN 1 hm2_7i96.0.pwmgen.00.value <== spindle-speed
==> hm2_7i96.0.pwmgen.00.value
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out0.invert_output
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out0.is_opendrain
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out1.invert_output
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out1.is_opendrain
26 s32 RW 1 hm2_7i96.0.pwmgen.00.output-type
26 float RW 5000 hm2_7i96.0.pwmgen.00.scale
26 u32 RW 0x00004E20 hm2_7i96.0.pwmgen.pdm_frequency
26 u32 RW 0x000003E8 hm2_7i96.0.pwmgen.pwm_frequency
hm2_7i96.0.pwmgen.00.out0.invert_output hm2_7i96.0.gpio.025.invert_output
hm2_7i96.0.pwmgen.00.out0.is_opendrain hm2_7i96.0.gpio.025.is_opendrain
hm2_7i96.0.pwmgen.00.out1.invert_output hm2_7i96.0.gpio.026.invert_output
hm2_7i96.0.pwmgen.00.out1.is_opendrain hm2_7i96.0.gpio.026.is_opendrain

Hope that gives you some clues....
Graeme

OK so if the scale is 5000 did you try setting the spindle speed to 2500 (that should be 50% duty cycle)

The current value of 1 would be close to 0 PWM duty cycle

This is with 51% dialed in for spindle speed override....

26 bit IN TRUE hm2_7i96.0.pwmgen.00.enable
26 float IN 0.51 hm2_7i96.0.pwmgen.00.value <== spindle-speed
==> hm2_7i96.0.pwmgen.00.value
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out0.invert_output
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out0.is_opendrain
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out1.invert_output
26 bit RW FALSE hm2_7i96.0.pwmgen.00.out1.is_opendrain
26 s32 RW 1 hm2_7i96.0.pwmgen.00.output-type
26 float RW 5000 hm2_7i96.0.pwmgen.00.scale
26 u32 RW 0x00004E20 hm2_7i96.0.pwmgen.pdm_frequency
26 u32 RW 0x000003E8 hm2_7i96.0.pwmgen.pwm_frequency
hm2_7i96.0.pwmgen.00.out0.invert_output hm2_7i96.0.gpio.025.invert_output
hm2_7i96.0.pwmgen.00.out0.is_opendrain hm2_7i96.0.gpio.025.is_opendrain
hm2_7i96.0.pwmgen.00.out1.invert_output hm2_7i96.0.gpio.026.invert_output
hm2_7i96.0.pwmgen.00.out1.is_opendrain hm2_7i96.0.gpio.026.is_opendrain

I thought it looked convincing!

I presume that just dialing a spindle override should affect the PWM output - if the spindle is enabled? Or do I need to achieve it via MDI, or by some other means?

I would do it with mdi

S2500 M3

Guess what! That worked...

It seems strange that I was getting the value I selected via the override visible on the PWM value pin - but maybe it was a slightly artificial test. Either way, I'm more than happy with that and can now make progress.

Many thanks - once again - for your exceptional support.

Cheers
Graeme