2025-04-10 6:05 AM
Hi
we created custom PCB using stm32h750IBT6 MCU. in this we have added USB interface using DM & DP pins.
issue: USB interrupt in not happening when i connect USB to the connector. i have added SCHEM for reference.
considered steps in MX:
1. enabled USB_FS as HOST_ONLY,
2. given clock as 48hz from RC48,
3. enable USB_HOST as mass storage class.
I am not understanding where I went wrong.
NOTE:
1.all pins are matched as per schematic.
2. in schematic i can sense 5v at out pin in ic4 as well
3. also i have removed D1 ic as well even though result
2025-05-09 7:33 AM
Hi @naveen
Why Vbus sensing pin is connected to PA7? It should be configured either to PC13 or PA9 as per datasheet.
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