STM32 MCUs Products

confusing about the regiser SYSCFG_CFGR3?

mcu:STM32L071RBTxquestions in the reference manual ：9.2.3 Reference control and status register (SYSCFG_CFGR3)Bit 8 ENBUF_VREFINT_ADC: VREFINT reference for ADC enable bitThis bit is set and cleared by software (only if REF_LOCK not set).0: Disables ...

DAC Output not zero on STM32F429I discovery (about 180mv). Can someone give an answer? and if I need to drive with the DAC an external circuit, How can I solve the issue?

STM32 Hang unewpectedly (NVIC suspected)

Hello,I've designed a board based on an STM32F091CBU.I needed CAN bus support, one SPI and one I2C and a timer interrupt.When I tested my program, it hanged during the initialization of the IMU (an LSM6DSM) due to HAL_delays I ordinary set between SP...

Code execution from SRAM of STM32H743 MCU.

Hi,1.Wanted to know does the execution time reduces(speed increases). If text segment is brought to SRAM from flash at start up and executed in STM32H743 MCU2.Wanted to know are there any optimization techniques to improve speed like using I cache ...

Why isn't HAL_Init() exiting and why am stuck at an infinite loop at HAL_TIM_PeriodElapsedCallback()?

Hi guys,My code is acting strange, when it seems to intermittently get stuck during the HAL_Init() function at the start of the code. The issue never throws an error ( but the debugger constantly pauses at HAL_TIM_PeriodElapsedCallback() despite ther...

Using STM32IDE, is there any way to enter preprocessor defines, as currently when regenerating code from the 'Device Configuration Tool', any defines entered manually for the project appear to be deleted?

I'm thinking in particular about defines to influence the HAL library code e.g. USE_HAL_TIM_REGISTER_CALLBACKS.Adding user defines in MX just puts them in main.h and they are not seen by the library code.

Availability STM32F723VxT?

Is there any projection when STM32F723VxT gets available? Is it projected at all?

How can I add DMA to both cores on STM32H7 dual core MCUs

Hello Guys,I am using a STM32H755ZI and I learned a lot about this MCU the past last months. However I am struggling with DMA. I got DMA working on one core, but I would like to use DMA on the same peripheral on both cores. I got it kinda working, bu...

On STM32F405xx data sheet, there is pin PF2 with option of I2C2_SMBA. What is it. Thank you,

SPI Half Duplex receive problem : No SCK

Dear all,I'm trying to perform a simple blocking SPI communication with a slave (TFT driver) on my STM32F769NI-disco board.I can transmit commands without any problem but I can't receiveHere is my init code called from main(): static void MX_SPI2_Ini...