The X-NUCLEO-IHM02A1 is a two axis stepper motor driver expansion board based on the L6470. This sensor uses SPI to communicate. A SPI instance is required to access to the motor driver. It provides an affordable and easy-to-use solution for low voltage motor control driving for stepper motors in your STM32 Nucleo project. The expansion board includes two L6470s, a fully-integrated micro stepping motor driver used to control stepper motors by means of high-end motion control commands received through SPI. It is capable of driving one or two stepper motors when plugged into an STM32 Nucleo board.
There is 1 example with the X-NUCLEO-IHM02A1 library.
You can find the source files at
https://github.com/stm32duino/X-NUCLEO-IHM02A1
The L6470 datasheet is available at
http://www.st.com/content/st_com/en/products/motor-drivers/stepper-motor-drivers/l6470.html
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