hi,
we are using drv8308evm board with external SPI interface (from STM32F429 controller). SPI communication is working. All control signals like ENB,CLKIN,RST everything is controlled by STM32F429. we are working on Clock frequency mode. after some tuning process (register settings is attached down). , we got smooth running of motor with lock. but expected rpm is not met. required rpm = 3000, clkin = 200Hz, measured rpm = 1800. if i change speed register to 500 with 200Hz clkin, motor is not running smoothly and lock is not coming. If i change clkin = 50 Hz, speed register is 3000 then also motor is not ruuning and no lock.
Is it possible to achieve required RPM (400 to 4000) by setting all register to a fixed value and changing only CLKIN dynamically?
Regards,
Elavarasan S