STM32f401RC USB mass storage host issue?

[Nredd.1]

I am using an stm32f401rc microcontroller, peripheral USB mass storage host is not detected, I am generating code as per the USB MSC HOST labs document.

MX_USB_HOST_Process();

switch(Appli_state)

{

case APPLICATION_IDLE:

break;

case APPLICATION_START:

HAL_UART_Transmit(&huart6,"APPLICATION_START\r\n",strlen("APPLICATION_START\r\n"),1000);

if(f_mount(&myUsbFatFS, (TCHAR const*)USBHPath, 0) == FR_OK) 

HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, GPIO_PIN_SET);

break;

case APPLICATION_READY:

HAL_UART_Transmit(&huart6,"APPLICATION_READY\r\n",strlen("APPLICATION_READY\r\n"),1000);

if(HAL_GPIO_ReadPin(BUTTON_GPIO_Port, BUTTON_Pin) == GPIO_PIN_SET)

if(UsbTest_Write()) 

HAL_GPIO_WritePin(LED4_GPIO_Port, LED4_Pin, GPIO_PIN_SET);

else 

HAL_GPIO_WritePin(LED3_GPIO_Port, LED3_Pin, GPIO_PIN_SET);

HAL_Delay(1000);

break;

case APPLICATION_DISCONNECT:

HAL_GPIO_WritePin(LED1_GPIO_Port, LED1_Pin, GPIO_PIN_RESET);

break;

}

the application starts but the application-ready message have not occurred.

Regards,

naren

[Imen.D]

Hello @Nredd.1​ ,

Try to increase heap and stack sizes in the CubeMx setting.

Maybe you should check the pins configuration, check if  D+/D- are not swapped !

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Imen

[Nredd.1]

Thanks,

It is working with external CLK settings,

the USB hid device's barcode scanner is working fine, but some hid devices is not working(keyboard and mouse)