TSC1641 I3C Interface Problem

roro · ‎2026-01-28

Hello everyone, I'm having some trouble implementing I3C communication and would like to ask for some help.

I am using the NUCLEO-H503RB board as my main controller. For the target devices, I have the NUCLEO-IKS01A3 expansion board and the TSC1641 (Click Board) connected. I'm currently facing some issues with the I3C communication setup between these components.

I have successfully managed to read the WHO_AM_I ID from the LSM6DSO (on the NUCLEO-IKS01A3). However, when I attempt to read the ID from the TSC1641, the SCL line continues to output a clock signal (or stays toggling) without a proper response. I am seeking assistance in analyzing the root cause of this issue.

mƎALLEm · ‎2026-02-20

Hello @roro ,

@roro wrote:

I am using the NUCLEO-H503RB board as my main controller. For the target devices, I have the NUCLEO-IKS01A3 expansion board and the TSC1641 (Click Board) connected.

How did you connect NUCLEO-IKS01A3 expansion board and the TSC1641 to NUCLEO-H503RB board? did you manage to check some hardware conflicts by referring to the different schematics?

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.

View solution in original post

mƎALLEm · ‎2026-02-20

Hello @roro ,

@roro wrote:

I am using the NUCLEO-H503RB board as my main controller. For the target devices, I have the NUCLEO-IKS01A3 expansion board and the TSC1641 (Click Board) connected.

How did you connect NUCLEO-IKS01A3 expansion board and the TSC1641 to NUCLEO-H503RB board? did you manage to check some hardware conflicts by referring to the different schematics?

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.