STM32 MCUs Products

Can stalled IRQs be interrupted by IRQ in RAM?

Hi,i'm dealing with the window watchdog.as my program erases a sector in flash i created a watchdog irq handler in RAM which retriggers the watchdog wen the sector is erased.my Watchdog irq has the highest priority. all other irqs have lower priorit...

STM32G071 ADC problem

Using a STM32G071RBT6 on a Nucleo-64 board. Board is powered by its USB ​port.According to user manual schematic VREF+ is connected to VDD (jumpers are installed).At CN6.4 (VDD) we measure 3.322 V against CN6.6 (GND).ADC is calibrated, CALFACT varyin...

I am new to MCU programming. I'd like to test SPI loopback using HAL. The project was generated by CubeMX for STM32F411RE. The SPI_call() is called inside the main. I am unable to receive the characters in the terminal.

void SPI_call() { char msg[] = "smile"; char copy[6]; HAL_SPI_Receive_IT(&hspi1, (uint8_t *)copy, strlen(copy)); HAL_SPI_Transmit(&hspi1, (uint8_t *)msg, strlen(msg), 100); }   static void MX_SPI1_Init(void) {   /* USER CODE BEGIN SPI1_Init 0 *...

Nucleo144 H745ZI-Q (rev C) EXTI interrupt continuously firing for user button no matter what I do unless I disable the interrupt

As an exploration into MCUs I'm doing everything as close to "deserted island" as I can and using assembly instead of the HAL and all that, but I'm having an issue. I was following in general this tutorial and just setting the registers as needed, bu...

I know there a unique ID for each STM32 MCU, but I was wondering if there is something similar for each discovery board? I mean can I identify the board (not the chip) by a unique ID?

INTERFACING STM32 AND ARDUINO UNO V3 SHIELD

Hi Team I am trying to interface ARDUINO ans STM32H7B31 I have both boards and i have studied the document that says the arduino connections CN10 CN11 CN19 CN20I hope it need and interface/shield to to connect as both the boards have the female conn...

HAL_QSPI_TxCpltCallback function is not being called for HAL_QSPI_Transmit function

But yet it is called for HAL_QSPI_Transmit_DMA function? Do I need to configure the autopolling with the QSPI_AutoPollingTypeDef structure for the callback to be called with the HAL_QSPI_Transmit function?

Why does my LSCO output for my LSE have a delay in matching my LSE input.

I am developing on a STM32L4 product and was having issues with the CSS shutting down my LSE signal. I found this problem in the errata and turned the CSS off, but it forced me to look closer at the signal my LSE crystal was providing (using the LSCO...