STM32 MCUs Products

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STM32L4R7 low-power, power cycling, and the backup domain

Hello,I have some questions relating to STM32L4R7ZIT and the different ways to enter/exit low-power modes or to power cycle, in both cases without losing RTC and backup registers.VBAT is always powered. There is an LSE.I need to understand which boot...

NArnd by Associate III
  • 788 Views
  • 2 replies
  • 1 kudos

Resolved! How stm32f469 QSPI Memory-mapped mode used Set?

Stm32f469 is currently developing the product using TouchGFX. The problem is that when the screen changes, the picture sometimes disappears. I thought there might be a problem with QSPI communication.QSPI believes that there is a memory-mapped mode t...

PKunK.1 by Associate III
  • 980 Views
  • 1 replies
  • 0 kudos

STM32L4 Does not wake up from STOP Mode with the RTC alarm

Hi all,I am using STM32L431 and the device is not waking up from STOP mode with an RTC alarm interrupt. Can somebody pinpoint where my issues are?My configurations in the code configurator:I am enabling the crystal oscillator, enabling the calendar, ...

0693W00000AOx6zQAD.jpg 0693W00000AOx7JQAT.jpg 0693W00000AOx7nQAD.jpg
KKili.1 by Associate II
  • 3718 Views
  • 9 replies
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How to transmit hex data over spi?

I want to transfer binary data (not character) without having to worry about character conversion, so directly:uint8_t data = 0xBF;HAL_SPI_Transmit(&spi1handle, (uint8_t *) data, 1, 1000);But I get something else at the receive end, specifically I ge...

Dian.1 by Associate II
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  • 3 replies
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Resolved! Problem with RTC and wakeup of stm32f103

I need help with standby mode and rtc wakeup.If I set date/time and RTC-Alarm time, I don't get an RTC - interrupt.I guess this is why the stm32f103 don't wake up from deep sleep.Do anyone have an link (or code) to an example using RTC amd wakeup fro...

oe2 by Associate III
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  • 2 replies
  • 0 kudos

ISM43362 WIFI Module on B-L475E-IOT01A

I connect with the module to an Access Point and get IP. Now I have some devices connected to the same Access Point. I want to receive UDP packets from the devices.What should I do? I can connect only with TCPif (WIFI_StartServer(SOCKET, WIFI_TCP_PRO...

Resolved! Where are defined AF numbers for pins?

I have a project for H743 with three SPIs.CubeMX creates the following code for initializing SPI pins:void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) { GPIO_InitTypeDef GPIO_InitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0}; if...

Pavel A. by Super User
  • 813 Views
  • 2 replies
  • 0 kudos