STM32 MCUs Products

Missing LPTIM_ETR description in many datasheets/ref manual

Hello,e.g. in RM00367 Rev 8 released some days ago, the block diagram of the LPTIM block in 24.4.1 does not show LPTIM_ETR pin/functionality.

STM32G070 power supply (Switching regulator with a LDO pos regulator is necessary?)

Hi, I'm using the STM32G070 processor. As power supply a TPS563201 regulator. Is a LDO pos regulator necessary? or just the switching regulator is enough? Is the processor stability or durability reduced due to switching regulator? (I am not using pr...

SPI Slave mode using DMA and soft NSS

I'm trying to transmit some data using DMA as a slave SPI device. I'm sending 8 byte but the peripheral always gives me 9 byte on the MISO line (first byte twice). The Master NSS is connected to a GPIO input (SPI_ENABLE) using external interrupt Mode...

Please improve DFSDM section of reference manual.

I've managed to get the DFSDM working with a PDM microphone (on a STM32L496 board) - using direct access to registers. But the documentation often made things more difficult than they needed to be. Just a few extra sentences, less ambiguous language ...

How to switch the operator for B-L462E-CELL1 board?

Hello,I wanted to experience data transmission through NB-IoT in Canada by using a Cellular Discovery Kit (B-L462E-CELL1).The eSIM is activated and the board communicates with echoclient, but it selects the operator automatically. Unfortunately, the ...

Hi, I get: Waiting for debugger connection... Debugger connected Waiting for debugger connection... Shutting down... Exit. On a new Project in a new workspace with STM32CubeIDE 1.8.0 After varios tests, the Problem seems to disappear. Greetings

Effect of pull up without supplying power to MCU

As shown in above figure.The EXT/GPIO pin directly connected to MCU with pull up resistor (10K).So once the switch press the PMOSFET start switching supply to MCU.Please let me know the effect of voltage on EXT/GPIO pin without suppling power to MCU.

No trace SWO output on stm32H743VIT6. SWO printf not working

Hello.Hi Forum. I am new to the H743 line of processors and the first thing I tried is getting printf() output on the traceswo pin of my nucleo-H743ZI. What I have tried:1. The 'Everything out of the box' way:Use cubeMX to configure sys to async trac...