What is deadTimePerTs parameter in system.h?

[derekcook]

In the system.h file I see a deadTimePerTs parameter. What is this parameter? The comment says percent of total duty cycle within deadtime. However, there is a separate deadtime within the pwm_sys.c file. Is this another deadtime? 

If I want 3us of deadtime should I set this to: .deadTimePerTs = _LQ(3e-06/0.00025) for a 4kHz pwmFreq

[linestream-adam]

deadTimePerTs is used by the pwm_sys.c file to set the deadtime in the FlexTimer. The other value (PWM_SYS_MIN_DEADTIME_US) is the minimum allowable deadtime of the reference hardware. This value is placed here to prevent people from breaking their reference kits due to a mis-configured deadtime.

Yes, you would set .deadTimePerTs = _LQ(3e-06/0.00025) for 3us of deadtime with 4kHz PWM.

[derekcook]

Thanks Adam!