Implementation of Hummingbird E203 Based Electric DC Motor Controller

Against the size issue that DC motor controller uses multiple chips to implement, the chiplized effort is made based on FPGA in this paper. RISC-V ISA based HE203 (Hummingbird E203) is as the core, in which redundant peripherals are customized. Due to the lack of ADC in HE203, the ADC (analog-to-digital converter) module is added on the FPGA, and the corresponding software driver of the ADC module is developed to control the DC motor. Finally the closed-loop control of the motor is implemented. Work waveforms are simulated in terms of PWM pulses. The experiments show that there are correct control functions.