STM32 MCUs Embedded software

LWIP: allocation fails in Heap (mem_malloc) for TX

Hello,I'm on a STM32H743 (nucleo-H743ZI2), and I got LWIP (no OS) to "work", as in it receives ip packets and reads them. The problem is with allocating on the heap. I didn't use the libc_malloc option, the heap pointer is at 0x30044000 and is 1600 b...

HAL UART Receive short reads - corrupt data

I am trying to implement a UART Rx using a typicalstart-byte, length, payloadpattern.I spin read on 1 character until it is my start byte. Then I read 2 bytes, shift them into a 16 bit length and read the remainder of the payload.The trouble is, the...

stm32 audio class device, the device cannot start (code 10)

I am trying to stream audio from my PC to my STM32F411CEU (custom development board) with USB. Using STM32CubeMX I configured my MCU as audio device class. When I plug STM32, the PC reckognizes MCU as STM32 Audio Device but there is an error, the dev...

FileX, DMA, disable or manage cache?

HiIn the various filex with SDMMC examples the icache and dcache are enabled so when porting I did the same.I noticed when attempting to use DMA SPI it was not working until I disabled these. For the SD I then have to disable cache and cache manageme...

DFU works with BOOT1 floating on nucleo board. Is this an acceptable design?

I'm designing a board with STM32F411RE which needs to support DFU for firmware upgrade.Looking at AN2606 on bootloaders, I will need to use BOOT0 = 1 and BOOT1 = 0 to start in DFU mode.However, looking at the schematic for the Nucleo f411RE, it looks...

DFU programming error

If I use the DFU programming over USB with STM32CubeProgrammer, the error occurred and the device doesn't start properly, but if I download the same program with ST-LINK everything runs ok. The MCU is STM32 G473.I can connect the MCU over the USB, an...

Will ST be kind enough to provide a simple and complete example of implementing CDC (simple implementation of USB to UART communication similar to CP2102 and others) on an MCU e.g., STM32F103 or STM32F401, including any caveats?

Help getting the en.STM32Cube_FW_F7_V1.15.0 (or later versions) package to run on anSTM32F7 Discovery kit with the STM32F746 uP

Hello, When I compile the files in the package and flash the board, all I get is a white screen. I have attempted to flash with other code packages as well and have not been able to get any to work. The only one I have had any luck with is rebuild...