Diesel Version 5:CV 9: Difference between revisions

From Train Control Systems Documentation
Jump to navigation Jump to search
Line 8: Line 8:
}}
}}


== NMRA CV 9 (PWM Period) ==
== NMRA CV 9 - Total PWM Period ==
THIS FEATURE IS NOT (YET) SUPPORTED BY THE WOWDIESEL V5
THIS FEATURE IS NOT (YET) SUPPORTED BY THE WOWDIESEL V5



Revision as of 19:23, 19 September 2018

Lua error: Internal error: The interpreter exited with status 1.

NMRA CV 9 - Total PWM Period

THIS FEATURE IS NOT (YET) SUPPORTED BY THE WOWDIESEL V5

The value of CV#9 sets the nominal PWM period at the decoder output and therefore the frequency is proportional to the reciprocal of the value.
The recommend formula for PWM period should be:

PWM period (uS) = (131 + MANTISSA x 4)x 2 EXP

Where MANTISSA is in bits 0-4 bits of CV#9 (low order) and EXP is bits 5-7 for CV#9. If the value programmed into CV-9 falls outside a decoder's capability, it is suggested (but not required) that the decoder "adjust" the value to the appropriate highest or lowest setting supported by the decoder