Unable to connect through serial port #16
Description
Hi, I planned to set up a serial communication between the STEVAL-3DP001V1 board and a python script to perform 3d printing. I followed the instruction of official document of STEVAL-3DP001V1 board https://www.st.com/content/ccc/resource/technical/document/user_manual/group0/66/e3/47/bb/0e/6c/45/9f/DM00291039/files/DM00291039.pdf/jcr:content/translations/en.DM00291039.pdf
to build and load the firmware. However, when I sent a G-code command through the serial port, the board only responses me with '�' characters. I also tried the Pronterface example which is listed in the official document and which the connection are also fail.
I connect the PC to the board through its the st-link port by USB, I use pySerial to connect to the serial port ttyACM0. I used to do the same thing to connect to a arduino 3d print board. I wonder are there any extra steps to be done to connect to the serial port through the st-link. I am kinda new with the STM board, your help will be greatly appreicated. Thanks.