STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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Resolved! HAL_UART_Transmit_DMA(), only works with inline defined string and fails with globaly defined array

why does this work:HAL_UART_Transmit_DMA(&huart6, (uint8_t *)"stm32\n", 6); // works and sends dataand this doesnt:ALIGN_32BYTES (uint8_t aTxBuffer[]) = "stm32\n";HAL_UART_Transmit_DMA(&huart6, (uint8_t *)aTxBuffer, 6) // doesnt send any datawhat am ...

zhausq by Associate III
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Is there anyone here who is an expert with the STM32 with direct experience with the STM32 L4 family? We are Running Freeartos and having default system register HAL (clock structures and RTC) issues and would SUPER appreciate some help

I am searching for an expert. We are having problems with the RTC jumping all over the place. Has anyone here 1) experienced this, or 2) Could point me in the direction of where I could find someone? My company depends on it. Thx!

SSier.1 by Associate
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Resolved! STM32F405 unable to f_open.

Hi,I have created my own board on STM32F405RGT6 and I want to use MicroSD card with it.My problem is that the file system mount is working but not the file open. While f_open() is invoked the board freezes for about 30 seconds and later returns "FR_D...

DLegu.1 by Associate II
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An Ethernet Bootloader for ST32H750VB

Hi,I have a custom board based on STM32H750VB that has Ethernet connection. I want to develop a bootloader code that can program Flash for system upgrade purposes. I read in the datasheet that there is a bootloader in System Memory and is programmed ...

HMora.1 by Associate II
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  • 4 replies
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STM32L462 FATFS FR_DISK_ERR on f_write

Using custom board with l462re, sdcard connected directly to mcu without external pullups.SDMMC clockdiv set to 10, SDMMC freq set to 48MHz.When ever I'm trying to use f_write or f_mkfs they return FR_DISK_ERR.Sometimes sdcard is corrupts(file is cre...

SYako by Associate III
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  • 3 replies
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STM32L496 USB DFU on Nubleo-L496ZG Eval Board

I have not been able to get the device to enter USB DFU boot mode (hold boot PIN and reset). I've used many other ST devices and have never had an issue with this. I'm sure it's something simple. What are the dependencices for USB DFU boot to star...

MHinz.1 by Associate
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