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A Field-Programmable Gate Array (FPGA) is a logic chip consisting of an array of programmable logic blocks and interconnects that is configured by the customer after manufacturing—hence "field-programmable".
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Simple way to decoding FSK
I'm trying to build simple fsk transmitter and receiver, the transmitter is just an FPGA with a wire, the logic is quite simple, I mix (with a XOR) the transmission frequency with a lower frequency, thats … How can I feed the signal to an FPGA, which should count and identify the frequency, with a minimal number of parts, I guess LM741 is too much for that kind of task. …