[STM32WB55] [BLE_DataThroughput + CDC_Standalone] [USB not working]

[theARTof1337]

Hello, dear STM32 developers!
I'm trying to modify BLE_DataThroughput application adding USB logs feature. I'm adding USB initialization code from CDC_Standalone example project, but windows does not recognize the device. I've added initialization function 

/* Initialize all configured peripherals */

MX_GPIO_Init();

MX_DMA_Init();

MX_RF_Init();

MX_RTC_Init();

MX_RNG_Init();

/* USER CODE BEGIN 2 */

MX_USB_Device_Init();

/* USER CODE END 2 */

/* Init code for STM32_WPAN */

MX_APPE_Init();

I modified clock configuration function to block HSEM 5, but USB still isn't working

void USBD_Clock_Config(void)

{

RCC_OscInitTypeDef RCC_OscInitStruct = {0};

RCC_CRSInitTypeDef RCC_CRSInitStruct= {0};

LL_HSEM_1StepLock( HSEM, 5 );

/* Enable HSI48 */

RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;

RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;

RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)

{

Error_Handler();

}

/*Configure the clock recovery system (CRS)**********************************/

/*Enable CRS Clock*/

__HAL_RCC_CRS_CLK_ENABLE();

/* Default Synchro Signal division factor (not divided) */

RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;

/* Set the SYNCSRC[1:0] bits according to CRS_Source value */

RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;

/* HSI48 is synchronized with USB SOF at 1KHz rate */

RCC_CRSInitStruct.ReloadValue = __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000, 1000);

RCC_CRSInitStruct.ErrorLimitValue = RCC_CRS_ERRORLIMIT_DEFAULT;

/* Set the TRIM[5:0] to the default value */

RCC_CRSInitStruct.HSI48CalibrationValue = RCC_CRS_HSI48CALIBRATION_DEFAULT;

/* Start automatic synchronization */

HAL_RCCEx_CRSConfig (&RCC_CRSInitStruct);

}

Please, help. i suggest, that my next steps should be registering some tasks in the sequencer and setting tasks to send data into USB, when i need to make logs. But now i cannot successfully initialize USB, so i can't move on....

[FBL]

Hi @theARTof1337 

Did you test the example provided CDC Standalone?