STM32 MCUs Products

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Have: STM32L151C8xxA Get VREFINT trouble (VREFINT voltage drifts depended on external power supply), how to get REAL input voltage?

Code for prepare MCU ADhadc.Instance = ADC1; hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV2; hadc.Init.Resolution = ADC_RESOLUTION_12B; hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc.Init.ScanConvMode = ADC_SCAN_DISABLE; hadc.Init.EOCSele...

AlexandrX by Associate III
  • 1146 Views
  • 7 replies
  • 1 kudos

Have you ever met a problem with HAL_MMC_ReadBlocks?

Hi,I'm working on SDMMC on STM32U5 nucleo board.Everything works fine for 1 and 4 bit mode.But, in 8 bit mode I can write data with HAL_MMC_WriteBlocks but when I try to read back with HAL_MMC_ReadBlocks, it always gets SDMMC_FLAG_DCRCFAIL.Have you e...

j.kouadio by Associate III
  • 627 Views
  • 1 replies
  • 2 kudos

SD_FindSCR Function!?

My problem just like https://community.st.com/s/question/0D50X00009XkdhZ/sdfindscr-function-problem​In ​the SD_init function ,I use HAL_SD_ConfigWideBusOperation to change bus wide.​but sometime it will dead in SD_FindSCR => while(!__HAL_SD_GET_FLAG(...

wu ryan by Associate II
  • 842 Views
  • 2 replies
  • 0 kudos

Resolved! STM32L433 LPTIM External Clock Max Freqency?

What is the max frequency when driving the LPTIM from an external clock?I would like to drive the LPTIM1 from a STM32L433 to control a Boost switch regulator. Since we can clock LPTIM1 from 80MHz PLL internal. Is this limit safe for external as well?...

JWieb by Associate III
  • 897 Views
  • 2 replies
  • 2 kudos

DFU bootloader issues

I am trying to use the built-in bootloader in DFU mode on STM32H743IIT.1. I built my application and created a *.dfu file2. The bootloader starts fine and my device enumerates properly as "STM Device in DFU Mode"3. DfuSe Demo (v3.0.6) detects my devi...

BKlus.1 by Associate III
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  • 3 replies
  • 0 kudos

make[1]: *** [Drivers/STM32F1xx_HAL_Driver/Src/subdir.mk:58: Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.o] Error 1

I've trying to implement a code for distance sensor AFBR-S50MV85G-EK, but instead of STM32F401RE wich is the mcu recomended by the programing guide I'm using STM32F103C8T6. Now I'm getting the following on console:make -j4 all arm-none-eabi-gcc "../D...

GOrne.1 by Associate
  • 1424 Views
  • 0 replies
  • 0 kudos