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Resolved! Unable to wake from Stop2 power mode with user button

I put my L4R5ZI chip into Stop2 mode but it doesn't seem to want to wake up from the user button, unfortunately. According to the datasheet, the wakeup sources include:Reset pin, all I/OsBOR, PVD, PVMRTC, IWDGCOMPx (x=1..2)I2C3(7)LPUART1(6)LPTIM1I h...

JayDev by Senior II
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Resolved! Emulating a matrix keypad with a stm32 microcontroller

Good morning Stm32 community,I am designing a ​matrix keypad emulator to control a musical keyboard. I need a 16x16 keypad for the music keys and a 8x8 keypad for the control buttons. The idea is to swap the existing keypads connected to the existing...

Modifying BOOT_ADD0 value

Is it possible to modify this register field using STM32CubeProgrammer?I've tried both:Writing a value using the Registers tabWriting to a memory address that the field occupiesBut neither work.

dscdsc by Senior
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How to know that MCU is genuine

I bought 960 MCU very expensive.but many barcode and number has been deleted.I just wonder that this mcu is genuine or not   

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DAhn by Associate
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DMA1 CCR register is NOT updated (NOT Written)

Hello and Happy New Year 2022,I'm using STM32L072, I set SPI1 to be in "Transmit Only Master" mode, and DMA1 as SPI1_TX (DMA1 Channel 3)I use CubeMX to Auto generate my codeThe relevant SPI1+DMA1 line is: HAL_SPI_Transmit_DMA(&hspi1, (uint8_t *)aBuff...