NU32v2: Using the LS7183 Quadrature Clock Converter
From Mech
The LS7183 quadrature clock converter is a chip used to convert quadrature signals from encoders into up and down counts that can be sent to a microchip.
Overview
Rotary encoders create quadrature signals on two channels (A and B) corresponding to the speed and direction of a motor. Some encoders produce up to a million counts per revolution. For very fast quadrature signals there is no way that a software quadrature decoder can avoid overrun errors. Instead we may use the LS7183 chip to translate the A and B quadrature signals into brief pulses indicating up-count or down-count. The up and down counts can be configured as external input signals to increment counters on the PIC32.
