Using more than a single X-NUCLEO-IHM06A1 evaluation board

AlexHalf · ‎2025-06-15

Hello

I want to use 3 x STSPIN220 for controlling 3 x stepper motors (motorized lens: Zoom, Iris, Focus). Currently to test lens I want with X-NUCLEO-IHM06A1 evaluation boards (with NUCLEO-F401RE). In stm32_nucleo_expansion_boards_motor_control_selection_guide.pdf mentioned that up to 2 x X-NUCLEO-IHM06A1 are stackable.

It is not clear for me how I can do it and to control movement of at least 2 lens (of 3) separately?

Thank you in advance

Alex

Peter BENSCH · ‎2025-06-15

The STSPIN220 has no option for selecting one of several of these devices. As you need the control and feedback signals for each driver, but these are permanently assigned to the X-NUCLEO-IHM06A1, even controlling two devices becomes difficult.

The easiest way seems to be not to stack the X-NUCLEO-IHM06A1 on top of each other, but to connect them separately to the controlling MCU via cable.

Regards
/Peter

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Peter BENSCH · ‎2025-06-15

The STSPIN220 has no option for selecting one of several of these devices. As you need the control and feedback signals for each driver, but these are permanently assigned to the X-NUCLEO-IHM06A1, even controlling two devices becomes difficult.

The easiest way seems to be not to stack the X-NUCLEO-IHM06A1 on top of each other, but to connect them separately to the controlling MCU via cable.

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.