STM32 MCUs Products

Have you ever seen this marking scheme without "ST" in the first row? CAN it even be legitimate?

In normal times I would never thinking about buying from a no-name small Chinese seller, but I'm very desperate ATM

How to set my timers to 0V when off?

I am having this problem with a variety of signals but let's take for example a 10 kHz signal. I am using the repetition counter to count 9500 times (950 ms) and then be off for 50 ms before turning back on. During the repetition counter part my sign...

STM32L072 SysTick_Handler is never triggered

The IRQ is setup as follow:__weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority){ /*Configure the SysTick to have interrupt in 1ms time basis*/ HAL_SYSTICK_Config(SystemCoreClock/1000U); /*Configure the SysTick IRQ priority */ HAL_NVIC_SetPrio...

How to setup G431 DMA for peripheral to memory single transfer

Hello,I have a G431 working with TIM8_CH1 and TIM8_CH3 generating DMA interrupts for a peripheral to memory transfer. I am not getting the correct number of transfers on TIM8_CH1 which is a capture compare triggered by an external input pin. TIM8_CH3...

Issue when configuring PA0 as input on STM32F030K6T6

Hello,On a pcb on which there is the STM32F030K6T6, I am facing a strange issue.First, the context is that I am using different timers, interruptions, DMA, UART, analog inputs and digital outputs (PWM, ON/OFF signals).2 of the i/o's are concerned by ...

RS485 Receive Buffer Corruption

I have two device on the Rs485 line, one of them transmit the data, another receiving the data.Transmitter, transmit rs485TxBuffer, it is include `uint8_t rs485TxBuffer[2]={0xAA,0xBB}`.I expect the receiver fill the receive buffer with these data. Bu...

for the LSM32l4 what is the OwnAddress1 = I2C_ADDRESS;

STM32L011K4 watchdog does not always reset the device

I am using STM32L011K4 MCU and it says on errata that:"The IWDG must be configured so that the counter starts counting down and generates a reset when the end of count value is reached. In some cases, the configuration does not work, the IWDG remains...