STM32 MCUs Embedded software

Question about STM32 FPUs and FREERTOS

Do the STM32 MCUs that have a floating point unit use it automatically or does it only use it once you have enabled it in the FREERTOS configuration?Say on a STM32H743 which has a double precision FPU, if I have a floating point calculation in my cod...

[HAL BUG Report] STM32H743 SDMMC LL library only supports 2 transfer modes

[HAL BUG] STM32H743 SDMMC LL library only supports 2 transfer modesI connected SDMMC2 to Marvell 88W8801 WiFi chip (an SDIO card).In STM32H743 reference manual, SDMMC_DCTRL_DTMODE supports 4 data transfer modes:[00] block data transfer[01] SDIO multi...

Hi, Is there any solution to use the STM32 as a HID device with a tablet and the tablet can be charged simultaneously? I've tried several cable configuration on USB type-C but no success. Thanks.

STM32H7 lwip "HTTP headers not included in file system"

Hello, I am developing a HTTPd web server with lwip and STM32H7. I am generating fsdata.c and fsddata_custom.c using a Perl script that I found through an example on the internet.The project works and the I can access the web page using the ip addres...

Would like to use a STM32L452 MCU with VDD=1.8V but still be able to maintain USB functionality for DFU updates. This device has a separate VDDUSB pin that I would like to power separately (3.3V) from an LDO when VBUS is connected.

As long as the VDDUSB supply is from 3.0V to 3.6V and is the last to be applied and first removed (vs. VDD), there should be no issues?

AT command manual for the module used on B-L462E-CELL1

Hi!https://community.st.com/s/question/0D53W00001AO4MFSA1/bl462ecell1-the-modem-doesnt-respond-to-some-at-commandsand https://community.st.com/s/question/0D53W00000j7Em9SAE/bl462ecell1-not-connecting-to-truphone demonstrate, that we need an AT comman...

Why is a single 23-bit value not correctly written to the flash memory when I use 'HAL_FLASH_Program()'?

HelloI've managed to get the 'FLASH_EraseProgram' example program for the Nucleo-F413ZH that comes with 'STM32Cube_FW_F4_V1.25.0' working on a Nucleo-F413ZH board.It erases sectors 2 to 15 and fills them with data - i.e. 0x78563412 that shows up repe...

X-CUBE-CELLULAR on B-U585-IOT02A Hard faults when executing AT+CGMR handler. The SID_CTXT.device_info pointer is NULL when memcpy is called to copy the response into the struct. On L4, the pointer is NULL also but the code continues.

at_modem_signalling.c fRspAnalyze_CGMR() line 1583. In L4 the compiler is v5, on U5 the compiler is v6. It seems the main issue is that the device_info pointer is not initialized before this code executes. CS_get_device_info() is called later after C...