Inquiry about clock activation of stm32cube.

[LSung.1]

Hello?

As the title states, I would like to inquire about the settings of STM32CUBEIDE(V1.13.1) of the STM32F730V8T product.

If you select USB_OTG_FS (Dual/OTG, Host Only or Device only) for the relevant MCU, it will be activated in the clock, but USB_OTG_HS (Dual/OTG, Host Only or Device only) will not be activated no matter which one you select.

This means that HS mode does not require an internal clock. Does this work properly?

[TDK]

If you choose External Phy, the clock is provided by the external chip. But you need to provide that chip with a clock either with a crystal or with a clock signal.

[LSung.1]

In the case of H750, it was the same as HS (External PHY), but the clock for USB was activated internally.

Is there a difference?

Also, in the case of the HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle) function created in CUBEIDE, there is a problem in which an error occurs every time it is compiled.

----------------------------------------------------------------------

/* Peripheral clock enable */
__HAL_RCC_USB_OTG_HS_CLK_ENABLE();
__HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE__HAL_RCC_USB_OTG_HS_CLK_ENABLE();
__HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();

/* Peripheral interrupt init */
HAL_NVIC_SetPriority(OTG_HS_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
/* USER CODE BEGIN USB_OTG_HS_MspInit 1 */

/* USER CODE END USB_OTG_HS_MspInit 1 */
}

----------------------------------------------------------------------------------

It's probably because it's a function without a function in the second line. Is there a solution to this happening every time?

[LSung.1]

For H750, when using USB_HS (External PHY), the internal clock for USB is activated at 48 MHz.

What is the difference between F730 and H750?

Also, in the case of the HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle) function created in CUBEIDE, there is a problem in which an error occurs every time it is compiled.

---------------------------------------------------------------------------------------------------------------

/* Peripheral clock enable */
__HAL_RCC_USB_OTG_HS_CLK_ENABLE();
__HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE__HAL_RCC_USB_OTG_HS_CLK_ENABLE();
__HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();

/* Peripheral interrupt init */
HAL_NVIC_SetPriority(OTG_HS_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
/* USER CODE BEGIN USB_OTG_HS_MspInit 1 */

/* USER CODE END USB_OTG_HS_MspInit 1 */
}

---------------------------------------------------------------------------------------------------------------

It's probably because it's a function without a function in the second line. Is there a solution to this happening every time?

[TDK · Accepted solution]

For H750, the USB can be clocked from different sources. Under this mode, it just needs a clock, it doesn't need to be 48 MHz.