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USB Host High Speed HID_MIN_POLL Can not set to 1

jim_hu
Associate II

‎2024-12-15 05:59 PM - last edited on ‎2025-01-13 07:50 PM by

I am using an STM32F405RGT6 and USB3300 to implement a USB Host for a keyboard. When I set hid_min_poll to 1, the keyboard is recognized but key presses are not detected. However, when I set hid_min_poll to 2 or higher, the keyboard works fine, and key presses are detected. What could be the reason for this?

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2 REPLIES 2
jim_hu
Associate II

‎2025-01-05 06:52 PM

Does anyone know how to solve the problem?

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jim_hu
Associate II

‎2025-01-13 07:15 PM

I change the code optimize level to O1, it seems work.

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