June 4, 2009
about a year ago
Yes, soft processors can fill most of the same requirements as a discreet mcu, but there are many situations, particularly with small FPGAs like a Spartan, where resource constraints don’t allow enough space/resources on the FPGA for both a soft core processor and the application logic.
More importantly, no, you cannot implement an ADC entirely in HDL on a Spartan FPGA so I don’t know where you got that info from. Please provide one example of a functional HDL ADC working on an FPGA with no additional external components.
A soft processor is not a replacement for a an on-board mcu. He even mentioned analog input, something a Spartan cannot do without an add-on board. Nice try though.
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