Not able to reconnect after rasperry client reboot

[BenjDC]

Hello,

I am able to correctly connect to the STM32 using rosserial_client from a raspberry pi. But if I reboot the raspberry, further connections are not possible unless I reload the STM code using STM32CubeIDE. I get the following error code :

ubuntu@tetra:~$ rosrun rosserial_python serial_node.py _port:=/dev/ttyUSB0 _baud:=115200
[INFO] [1588627303.075109]: ROS Serial Python Node
[INFO] [1588627303.095200]: Connecting to /dev/ttyUSB0 at 115200 baud
[ERROR] [1588627320.210673]: Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino

tested with :

• provided /example/chatter sample code
• STM32F405
• ROS kinetic/raspberry PI3 /ubuntu 16.04

Am I missing some step ?

Thanks in advance !