STM32 MCUs Products

STM32L476 RTC Wake Up interrupt triggered only after another interrupt has been triggered

Hello,I'm exploring the low power modes with a NUCLEO-L476RG (STM32L476RG).I generated RTC and NVIC configurations with STM32CubeMX (5.3 and then 5.6).I am able to wake up from STOP0, STOP1 and STOP2 using the GPIO EXTI interrupt of the user button.I...

stm32h7 spi interrupt latency

Hi all,I interfaced external(off board ADC) to stm32h743 microcontroller. i am receiveing data in spi interrupt mode. i enabled RXPIE interrupt.But the interrupt latency is increasing as Baud rate of SPI is increased.at lower speeds latency is small(...

Running application from RAM

Hello,Is it that application can only run from ITCM ? When I try to run from other SRAM such as SRAM1, it get into MEM IRQ handler.Another issue is that on running from ITCM the HAL_Delay is much faster compared with running from internal flash (Xip...

STM32F779NI internal ADC accuracy

I am using internal ADC of STM32F779NI connected to LMT86 Temperature sensor. Vref is 3.3v and ADC resolution used is 10-bit. The problem is there is always a difference with the expected ADC and the actual ADC for a given voltage. This difference is...

Why does hard fault occur in STM32H753 VI?

When I was trying to download the code to STM32H753VI using IAREmbeddedWorkbench, IARissued a warning to me.Warning: There were warningsduringdownload, seeLogWindowAfter pressing the OKbutton, I checked and found my code was held in HardFault_Handler...

I'm wondering if it can be possible to get the demo code version of the STM32F769 Discovery kit in C language ? We are just trying to figure out some things for our own code. Thanks !

STM32L4 LPUART receiver tolerance

I'm hoping this is a simple question. In the reference manual (RM0394 section 39.4.5), the tolerance of the LPUART receiver is specified in Table 204. For example, with BRR = 1024 and 9 bits/1 stop bit, the tolerance is given as 2.33%.I've been ass...

How to include and call NVIC functions from core_cm7.h?

I want to use NVIC_SetPriority() and NVIC_Enable_IQRn in main.c, and I have the necessary included headers, but when I try to build the program I get "undefined reference to NVIC_SetPriority".I assume it is because the functions are headed as __STATI...