STM32 MCUs Embedded software

I am working with STM32F407 to write a text file to Pendrive (USB Host). But i am getting FD_DISC_ERR. When I debugged more i understood that this is due to HOST_DEV_WAIT_FOR_ATTACHMENT issue. Can anyone help why this is happening?

Multiple EXTI GPIO EVENTS-STM32G0 I would to know is someone could provide some tips on using GPIOs as External Events (EXTI) sources on STM2G0 HAL. Any information is welcome BR Gilberto

I have an STM32H743. I am trying to configure a Layer 4 inverse filter on destination port . My intention is to allow all broadcast traffic except for one that has a particular destination port.

I am configuring the following control registers.  heth->Instance->MACCR |= ETH_MACCR_IPC; // INVERSE MATCHING heth->Instance->MACPFR |= ETH_MACPFR_IPFE; heth->Instance->MACL3L4C0R |= 1<<21;//ETH_MACL3L4C0R_L4DPIM0; heth->Instance->MACL3L4C0R |= 1<<2...

How to get the DFSDM to trigger the HAL_DFSDM_FilterAwdCallback

I'm using a STM32L475. I have DFSDM data coming in. I'm using the AWD and have set high and low thresholds to trigger an interrupt. I cannot get the interrupt to occur. The DFSDM_FLT1AWSR flags get set. The DFSDM_FLT1ISR->AWDF flag also gets set. Any...

Accuracy of USB clock on STM32L496ZGT when using MSI (without LSE/non-PLL mode) vs HSI48 with CRS

MSI (without LSE/non-PLL mode) vs HSI48 with CRSWhich is the more accurate clock to use for STM32L496ZGT in USB slave mode and what are they relative accuracies?

STM32L4P5CG and bootloader programming appear to have L1 mem protection set now

I have an application running on an STM32L4P5. Initially, I programmed and debugged with J-Link on the micro 9-pin SWDIO connector. All worked great, I could use J-Mem to peer into sram or flash in real time. Then I built a bootloader over USB, using...

HAL_SPI_TransmitReceive_IT(...) forgets to __HAL_UNLOCK(hspi) before __HAL_SPI_ENABLE_IT(hspi, ...)

This occasionally leads to (especially if only transferring one byte) the interrupt executing before the function has unlocked the process, leading to the function returning HAL_BUSY if you were to attempt to initiate another transfer in the transfer...

How does one get an STM32G4 MCU into USB TEST_PACKET mode?

How does one set an STM32G4 MCU into a USB test mode? The reference manual (RM0440) does not indicate any way to do this. On the F4 series this could be done through the OTG_FS_HPRT register's PTCTL field.I need to be able to get a peripheral (NOT a ...

DRD Settings for NUCLEO-G071RB and X-NUCLEO-DRP1M1

I would like to use NUCLEO-G071RB and X-NUCLEO-DRP1M1 to Source,UFP my USB devicesWhen the USB device side is set as Source, the role of data is DFP.​I used the DR SWAP command to change from DFP to UFP.But there was no sample code in x-cube-tcpp_v4....