stm32g0b1rct6 usb host (MSC) flash drive not working

[Berlin-raj123]

Hi, I have a customized STM32G0B1RCT6 board, and I'm trying to use its USB host function to connect to a flash drive. I used the file handling function to create a text file and store text files from the controller to the USB. I tried the same steps on the STM32F429I-DISC1 board, and it worked well. However, it's not working on my G0B1RCT6 customized board. Why is this happening, and how can I interface the USB host with the STM32G0B1RCT6 Controller?

On the STM32F429I-DISC1 board, the power supply is coming from the EN and ENABLE pin connected to OTG_FS_PSO, which is in turn connected to PC4. How can I determine the VBUS power supply on the STM32G0B1RCT6?

Anyway, I am sending my code.

[FBL]

Hi @Berlin-raj123 

You can follow the example provided here STM32CubeG0/Projects/STM32G0C1E-EV/Applications/USB_Host/MSC_Standalone at master · STMicroelectronics/STM32CubeG0 (github.com)

and schematics here MB1352 (st.com)