Can't Blink Led in STM32F411 Discovery board

[studentof]

I create A project for STM32F411 Discovery board with STM32CubeIDE 1.19.0

and coding :

 

while (1)
{
 /* USER CODE END WHILE */
 MX_USB_HOST_Process();
 HAL_GPIO_TogglePin(LD3_GPIO_Port, LD3_Pin);
 HAL_Delay(500);
 /* USER CODE BEGIN 3 */
} 

and don't set anything else.

(I saw that the connection settings for the leds were automatically created when Creating project)

i Build and Run code sucessfully but i dont see led Blink. Thanks

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Edited to apply source code formatting - please see How to insert source code for future reference.

[Karl Yamashita]

Run in debug mode to see if it's stepping through your code or hanging somewhere, particularly in MX_USB_HOST_Process.

[studentof]

I see that my code hanging at  SystemClock_Config(); So i changed the settings according to the images below

But the same issue still occurred

[Andrew Neil]

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@studentof wrote:

I see that my code hanging at  SystemClock_Config(); So i changed the settings according to the images below

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So you've configured it to use an external crystal.

Does your Discovery board actually have an external crystal?

[Imen.D]

Hello @studentof ,

Please follow the steps in this tutorial: STM32StepByStep:Step2 Blink LED - stm32mcu

[FBL]

Hi @studentof 

About your observations : 

1. The clock configuration function SystemClock_Config() hangs if I select the external crystal (HSE).
   > make sure your HW setup is properly configured: Check SB14, SB16 OFF  –  R25 ON – R66 OFF
   
   
2. The project only blinks the LED successfully when I disable USB_OTG_FS and switch to the internal oscillator (HSI). When USB_OTG_FS is enabled, I cannot select HSI as the PLL input because the MX requires HSE for USB. Disabling USB_OTG_FS allows me to select HSI and blink the LED.
   > I would recommend to describe your goal then your issue. Do you want to develop USB Host application using this F411 disco board? Did you test this example STM32CubeF4/Projects/STM32F412G-Discovery/Applications/USB_Host/HID_Standalone at master · STMicroelectronics/STM32CubeF4
   USB OTG full-speed controller requires a dedicated 48 MHz clock that is generated by a PLL connected to the HSE oscillator as it is mentioned in datasheet section 3.27
   
   
3. I suspect the USB host process MX_USB_HOST_Process() or clock configuration is causing the issue.
   > If so, you should have something not correctly configured in USB initialization to hang in MX_USB_HOST_Process() If still having issue, you can consider attaching your IOC file or your project.

[Tesla DeLorean]

Need to check SysTick is firing, break-point SysTick_Handler and check SCB->VTOR is being set properly in SystemInit()