STM32 MCUs Products

Best way to implement UART polling packet receiver.

Hi, I'm doing a firmware for a micro STM32F4.The micro is always in an infinite loop in the main(), at the end of each cycle it should check if there are any data on UART buffer, in case there are read all data and continue with the normal infinite l...

STM32F091 USART Idle line or Receiver Timeout Issue. Interrupts not firing. HAL Drivers

I have a requirement for receiving some long USART packets. (200 to 300 bytes). They can be of variable lengths. I did not want to poll or trigger interrupts for each byte and watch for a Stop byte symbol. But been trying to get the Idle line or Rece...

Where can I read more about the syntax of callback function (or just about any function)?

I have been trying to learn the STM32 for the past week. As someone started with Arduino, this is quite frankly overwhelming to me.Anyways, what I couldn't wrap my head around is where do people find all the reference for the callback function. I'm c...

Hi i am using stm32h7 board and receiving data using hal_uart_receive_it().it is working well for fixed size.but in my case size of receiving data is unknown.so is there anyway to fix it.please help me.

STM32G070 Internal RTC Wake Up Interrupt hangs. After few iterations rtc wake up interrupt is hangs. Help will be appreciated.

  if(low_power_mode == 1)  {    standby(10);    HAL_RTCEx_DeactivateWakeUpTimer(&hrtc);      }void standby(int seconds) { /* Clear all related wakeup flags*/  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WUF2);  rtc_set_wake_up_timer_s(seconds); HAL_PWR_Enter...

Frequency precision when generating sine wave with DAC

I am currently developing on a NUCLEO-G071RB board and I need to generate sine waves with frequencies in the range 1Hz - 11kHz. My project requires the step between the frequencies to be 1Hz. It doesn't have to be precisely 1Hz but it has to be close...

QUADSPI indirect-read only

Chip: STM32G474I have a ADC chip that offers SPI-compatible interface, it could achieve below functions in picture.I tried use QUADSPI to achieve that without instruction, address, alternate, dummy, but only DATA with indirect-read mode, but couldn't...

How to include arm_math in h745 dual core project

Hello, I'm trying to use arm_math.h in the m4 core of an stm32h745, but i get a bunch of really weird errors that seem to indicate that somehow the project configuration is wrong? I set the project properties to Debug_CM4 ( active ) and define CORE_C...