Figure 21. Resolver interface connector
3.10.1 Resolver Generator Inputs
The jumpers J59 and J56 provide positive input to differential amplifiers. For resolver sensor use, pins two and three should
be shorted. The resolver interface analog signals POS_SIN and POS_COS are available to be routed to the ADC pins, as
described in
Additionally, the POS_SIN and POS_COS signals pass through a comparator stage, to deliver two digital signals that can be
treated as two phase signals RES_PH_A and RES_PH_B. Jumpers must be placed on headers J39 and J49, pins 2-3,
respectively. These signals can then be routed to the microcontroller Timer inputs, by populating the proper jumpers. For
Phase A, a jumper must be placed on pins 2-3 of header J15. For Phase B, a jumper must be placed on pins 1-2 of header J16.
For phase C, there is a 0- ohm resistor that links it directly to the microcontroller pin PT3.
Figure 22. Resolver input interface
Design Considerations
S12ZVM12EVB Evaluation Board User Guide, Rev. 2, 03/2016
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Freescale Semiconductor, Inc.
