The method of data exchange between high performance PWM modulator and MCU

This paper describes an implementation of the serial peripheral interface (SPI) between a microcontroller and a FPGA in a hybrid digital control system for high power converter with increased switching frequency. Detailed description of the FPGA SPI realization is given including CRC processing. Proposed interface can be used in a digital control system for a power converter with a complicated modular structure and higher switching frequency.