STM32 MCUs Embedded software

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 ...

hello Community, I would like to send and receive data from my android phone to my stm32f407vgtx board using the esp8266 WIFI module what step should take in order to make it work ? Thanks

I trying to control and monitor a cool room with an android app via a STM32 board and the ESP8266. any help would be much appreciated thanks

USB PD library gets stuck in loop waiting for VBus to be 0V when a USB-C charger plugged

Hi there,We have a custom board with STM32F030CC and PTN5110 chip as the TCPC. We are using the x-cube-usb-pd library with config USBPD_TCPM_LIB_PD3_CONFIG_1.Initially, DRP role is selected. When we plug in a standard USB-C charger (5V 3A output) to ...

Whats the relation between FatFs middleware (ff and the low layer implementation) and sd_diskio?

To my knowledge, FatFs requires some low layer drivers in orden to work, and those APIs must be provided by the user. In UM1721 is pretty well described: "The FatFs Middleware solution provides low level disk I/O drivers for some supported disk drive...