In this post I will outline a couple of solutions for a quadrature encoder generator in VHDL. I wanted a Quadrature Encoder signal for test purposes without the need to hook-up a real encoder and decided that an FPGA is perfect for this, especially considering that generating two signals with a 90-degree phase shift is [...]

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In the Embedded world your standard Embedded microprocessor/DSP has all the peripherals preset and connected to the computation logic, although this is changing these days (see Cypress for their PSoC Mixed Signal Arrays). Additionally, these peripherals can also asynchronously interrupt the microprocessor when they need servicing. All the appropriate connections and signaling to the peripheral [...]

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