STM32 MCUs Embedded software

USB OTG support for STM32L073VTZ

Hello,Anybody knows where to get the driver source code, as well as examples, to support USB OTG on STM32L073VTZ? CubeMX can generate some USB initialization code BUT it lacks documentation on how to use it, and I doubt it meant to support USB OTG.Th...

How to leave DFU mode and start User Code on both cores on a dual core controller? (STM32H745)

Hi!I have basically two questions:1. How can I jump to user code after exiting DFU on a dual core chip?I am using NUCLEO-H745ZI-Q board and I can reset to the CM7 core by setting address 0x8000000 and than initiate a 0 download or to CM4 core if I se...

Missing section in HAL/LL driver manual for STM32L4+

In document DM00173145 Rev. 7 (STM32L4+ HAL and Low Layer Drivers) reference manual, there seems to be a section missing on the SD driver interface. There is a section SD Extension driver, but that doesn't have any of the general SD HAL API. Is this ...

On the USB1 HS of the STM32H753 How do you reset the receive DMA engine so you can reuse an address? The TX DMA engine works fine.

Software:STM32Cube_FW_H7_V1.7.0HW Info:STM32H753I-EVAL2Using OTG1_HS with external PHY in dedicated Host mode.USB device - camera running 30 fps that sends its data over a BULK channel instead of a ISOC channel (Vendor supplied device I do not get to...

I2C HAL own address format?

I have been struggling to get a simple I2C communication link working so that I can talk to my battery charger device. It's device address is 0x68. I have tried shifting this one bit the the left, not shifting the address. Nether works. Can someone s...

stm32f769 OTG DMA HS peripheral mode locks up on input xfer > 1KB

I have an STM32F769NI discovery board. I am using USB in HS mode, OTG, in peripheral mode, CDC class. The goal is to move > 10MB/sec to a host while having enough time to concurrently bring in about that same amount of data over two SPI interfaces....

How to disable bootloader in unprogrammed device?

Hi,We're using an STM32L47xx which connects to a number of other peripherals. On our first board spin, we can see the device enter bootloader mode. We weren't aware of the bootloader addition, so it wasn't accounted for during the early design phases...

I'm trying to update the code on a STM32F407 MCU using OTA and the update is sent through MQTT. The issue is that it takes a long time to update, I was wondering if there was a way to decrease the time. Also, if it's better to use MQTT or something else.

STM32F20xxx Ordering Reference

Hi guys, I would like to know the difference between a STM32F207ZGT6U and a STM32F207ZGT6. If I well understand the datasheet, the last letter of the ordering reference indicates a software option : Internal code or Blank. What does it mean ?I did a ...