STM32 MCUs Embedded software

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STM32G491 bootloader doesn't work

hi, i'm using a STM32G491 and i can't use embedded bootloader over UART1. i'v set BOOT_LOCK(bit) to 0, Boot0(pin) to 1, nBoot1(bit) to 1 ans nBoot_SW(bit) to 1. when i try to connect the mcu to STCubeProgrammer over UART i receive this message error:...

ERazz.3 by Associate II
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Storage access on an STM32 microcontroller

Hi All, I have noticed that when connecting both of my boards [b-g474e-dpow1, stm32g474ret6u] and [NUCLEO-F429ZI, stm32f429zi] they are recognized as a storage device on windows per the picture below for the b-g474e-dpow1 board. My question is, these...

0693W00000KbSwCQAV.png
VVarg.1 by Associate II
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HAL_ADC_ConvCpltCallback is called twice

I'm using an STM32F407, I want to use the falling edge of a PWM to trigger the ADC and then with the DMA move the data into a variable. The problem I have is that I am trying to check if the ADC is actually taking samples at the PWM frequency. I am t...

LSoll.1 by Associate II
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Resolved! HAL SPI library: Does Master's single call to HAL_SPI_Transmit() always trigger Slave's both HAL_SPI_RxCpltCallback() and also HAL_SPI_TxCpltCallback() ?

I am coding STM32H743 MCU with CubeMX generated library.I have 1 SPI Master and 1 Slave. Both configured for a full SPI with both lines of Tx and Rx.Master is calling blocking HAL_SPI_Transmit() or HAL_SPI_Receive() but never simultaneous HAL_SPI_Tra...