STM32 MCUs Products

read from UART DMA buffer on the fly

Hi, I have the below code where I trigger the UART DMA and write to a buffer, and in the while loop I simply do a read from the buffer 1st element:MX_UART7_Init(); Uartret = HAL_UART_Receive_DMA(&huart7, uartbuf, 300); while(1){ if(Uartr...

Hard Fault Detected STM32L031k6t6

Hey STM team, Recently I started to work with the STM microcontrollers. In my current project I have a STM32L031k6T6 with the ADC0 (PA0) reading the voltage and the channel 1(PA1) reading the Current. My Sample rate will be 1920Hz ( 32 points / cycle...

H745 DMA hardware problem?

I have encountered a strange problem with some of the dmas seeming to not ​be able to write to GPIOD ODR. I am using 5 dmas in a chain to write 16bit data to port D. Initially, i was using dma1 streams 0-4 but noticed that the signal was correct for ...

Waveform generation DAC DMA

I am trying to generate a trapezoidal waveform with slew rate 45V / us that is triggered every 50ms by an interruption generated by a timer. I am using the microcontroller stm32g474, which has 2 DAC with 15MPS. I am using DAC3 with DMA (circular mode...

IWDG is not turnoff in shutdown mode of controller(STM32L4R5)

How do I configure MCU as I2C slave device?

I've been trying to set up MCU (STM32 L432KC) as an I2C slave device. I have previously tested it as a master device to interface with a port expander(MCP2307) and it works perfectly fine.The following is the code I am running. The master sends 1,2,3...

STM32F031K6: Storing 16-bits variable in a non-volatile memory. Which solution is preferred internal Flash / external EEPROM?

I'm using STM32F031K6 in my design. I want to store 16-bits variable (Timer's AutoReload Register) in a non-volatile memory. What is best solution for this application? Internal Flash or external 128b EEPROM ?Any STM32 example code available to store...

Disabling readout protection level 1 in stm32F051xx microcontroller

Hi,I'm trying to protect my code from being able to read by others.So I chose readout protection level-1,I could make it read protected and I'm not able disable it by using readout protection level-0,I have to disable it using ST link utility.But I w...