steps to follow to implement usb cdc acm standalone on STM32H563ZI board

[Pranathi1999]

I'm trying to implement USB CDC ACM in standalone mode(without using ThreadX) on STM32H563ZI board. I have tried this with ThreadX and got it working.

I have modified the Ux_Device_HID_CDC_ACM example project, by removing ThreadX, HID and UART part to make it CDC standalone for my requirement. But its not working.

I have referred to these links:
https://community.st.com/t5/stm32cubemx-mcus/usbx-standalone-on-stm32h5/td-p/705341

Please find the attached link, for my project folder for further info. (due to size limit, folder could not be uploaded)
https://community.st.com/t5/stm32cubeide-mcus/how-to-implement-usb-cdc-acm-in-standalone-mode-for-stm32h563zi/m-p/754106#M33055

Due to size limit issue, I'm sharing the STM community link, I would be thankful if anybody could help.