Implementation and analysis of a FPGA-Programmable SoC interface towards mixed-signal educational platforms

This paper discusses a FPGA-PSOC interface to be used as a lab platform in engineering education. We selected the Analog to Digital Converter (ADC) and Digital to Analog Converter (DAC) in the Programmable System on Chip (PSoC) device to externally interface with a Spartan 3E FPGA. Implementation on the FPGA was done using VHDL while analysis and experiments were performed to test for accuracy and speed. Results show that there was promise in using the interface and combination of the two devices for future teaching platforms with errors found to be sub 8% in both the ADC and DAC interfaces.