Design Consideration
MPC5604P Controller Board User’s Guide, Rev. 0
Freescale
23
Figure 7. Encoder/Hall Sensor Interface Circuit
4.5
Resolver and SinCos Sensor Interface
The resolver or SinCos interface is present on the board to observe actual motor rotor position.The board
is populated with hardware interface to allow measurement of motor rotor position and speed.
Figure 8
shows resolver hardware circuitry. The resolver sensor can be connected through J207 connector. The
jumpers J203 and J204 provide selection of the positive input signal for differential amplifiers. In case of
use a resolver sensor, pins two and three should be shorted. The excitation signal output level (terminals
RES_GEN and GNDP) is set up by trimmer R221. The resolver excitation signal for resolver circuitry can
be selected by J2, the source signals are outputs from eTimer0.channel4 and eTimer0.channel5.
For detailed J207 connector signal description, see
Table 8
.