ROS spinOnce jamming the process of MCU

[stm32lover]

We are using ROS Serial to let Raspberry Pi and STM32F103C8T6 communicate with each other. And there is another UART channel for IMU to use. We observe that the spinOnce function of ROS jammed the process of MCU. Therefore, other work cannot operate normally.

The source file is attached.

Please help!

[waclawek.jan]

You probably have better chance for any response at the ROS community https://answers.ros.org/questions/

JW