CubeMX not generating PLL2 code for USB using STM32H5

[KevinW]

Hi, 
I am using STM32CubeMX 6.16.1 with a STM32H503RB and I have exactly the same problem : 

RCC is configured with LL library (not HAL), here is the SystemClock_Config() function generated by STM32CubeMX : 

void SystemClock_Config (void)
{
 LL_FLASH_SetLatency(LL_FLASH_LATENCY_5);
 while (LL_FLASH_GetLatency() != LL_FLASH_LATENCY_5)
 {
 }

 LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE0);
 while (LL_PWR_IsActiveFlag_VOS() == 0)
 {
 }
 LL_RCC_HSE_Enable();

 /* Wait till HSE is ready */
 while (LL_RCC_HSE_IsReady() != 1)
 {
 }

 LL_RCC_LSI_Enable();

 /* Wait till LSI is ready */
 while (LL_RCC_LSI_IsReady() != 1)
 {
 }

 LL_RCC_PLL1_SetSource(LL_RCC_PLL1SOURCE_HSE);
 LL_RCC_PLL1_SetVCOInputRange(LL_RCC_PLLINPUTRANGE_2_4);
 LL_RCC_PLL1_SetVCOOutputRange(LL_RCC_PLLVCORANGE_WIDE);
 LL_RCC_PLL1_SetM(12);
 LL_RCC_PLL1_SetN(250);
 LL_RCC_PLL1_SetP(2);
 LL_RCC_PLL1_SetQ(4);
 LL_RCC_PLL1_SetR(2);
 LL_RCC_PLL1P_Enable();
 LL_RCC_PLL1_Enable();

 /* Wait till PLL is ready */
 while (LL_RCC_PLL1_IsReady() != 1)
 {
 }

 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL1);

 /* Wait till System clock is ready */
 while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL1)
 {
 }

 LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
 LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
 LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
 LL_RCC_SetAPB3Prescaler(LL_RCC_APB3_DIV_1);
 LL_SetSystemCoreClock(250000000);

 /* Update the time base */
 if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK)
 {
 Error_Handler();
 }
}

PLL2 is never init although PLL2Q is selected in USB Clock Mux.

 

[FBL]

Hi @KevinW 

Would you attach your IOC file?

[KevinW]

Hi @FBL 

Please find the .ioc in attached file.

Also, I configured USB in device mode with default pins (PA11/PA12). Both pins aren't set up, I had to configure them manually (I don't use ST USB Stack but tinyUSB because I need USBTMC class that isn't provided with ST USB stack).

[FBL]

Hi @KevinW 

Did you check HAL_PCD_MspInit() inside stm32h5xx_hal_msp.c? 

On my side, CubeMX generated it as follows:

void HAL_PCD_MspInit(PCD_HandleTypeDef* hpcd)
{
 if(hpcd->Instance==USB_DRD_FS)
 {
 /* USER CODE BEGIN USB_DRD_FS_MspInit 0 */

 /* USER CODE END USB_DRD_FS_MspInit 0 */
 LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_PLL2Q);

 /* Peripheral clock enable */
 __HAL_RCC_USB_CLK_ENABLE();
 /* USB_DRD_FS interrupt Init */
 HAL_NVIC_SetPriority(USB_DRD_FS_IRQn, 5, 0);
 HAL_NVIC_EnableIRQ(USB_DRD_FS_IRQn);
 /* USER CODE BEGIN USB_DRD_FS_MspInit 1 */

 /* USER CODE END USB_DRD_FS_MspInit 1 */

 }

}