Hello everyone, I encountered a problem while using the STM32H750 MCU.
The hardware environment is STM32H750 + USB3300, which is used as a USB HOST HS to collect camera data.
An LTDC interface is used to connect a TFT-LCD for display.
An external SDRAM of 32MB is expanded, with a bus width of 16 bits.
Currently, when both the camera data and the LCD frame buffer are in the internal RAM, the MCU works normally. However, when the LCD frame buffer is placed in the external SDRAM, the USB HOST fails to work properly.
