STM32 MCUs Products

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Resolved! First call of timer expires immediately

Hi,I am trying to check if a button is pressed for 3s continuously using a timer which is started through an interrupt. The code for the same is attached below. The issue I am facing is the interrupt is immediately called when I press the button afte...

Resolved! Unusual high and nonlinear ADC offset

Hello everyone,I've been struggling with the ADC of a STM32G474QE on a custom board for some while now. I initially saw a discrepancy between an onboard NTC thermocouple and its measured ADC value. The measured Value (calculated to mV) was off by an ...

EE_21 by Associate II
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  • 4 replies
  • 0 kudos

Resolved! CAN Communication Issue

Hi, I am using STM32F446RE Nucleo and a Peak CAN Usb to test the CAN functionality of the microcontroller. I have connected the Microcontroller to a CAN Transceiver (TJA1050) and added a 120ohm resistor between the CANH and CANL line. I have attached...

Resolved! 5V FT pins vs. injection current on STM32G0

I am confused about the limits of the FT pins on this MCU. I think I understand the maximum voltage on an FT pin except FT_c is Vdd + 4V as long as no pulls are enabled. So with 3.3V Vdd the max voltage on most FT pins will be 8.3V is that correct? I...

Carl_G by Senior II
  • 267 Views
  • 3 replies
  • 0 kudos

Resolved! STM32 Bootloader: FAA DO-178 Certification?

Is the internal bootloader on the STM32H723 DO-178 certified?   It just dawned on me that the whole line of CPUs might be disqualified for aircraft use because the bootloader code "flies" with the aircraft and all such code must be certified to the l...

Niramas by Associate III
  • 1170 Views
  • 17 replies
  • 0 kudos

Resolved! STM32G431 I2C with HAL gets stuck in the interrupt

I am trying to use a G431 as an I2C device (slave). Unfortunately it can be made to latch up rather easily, getting stuck with an endlessly triggering I2C interrupt. It appears to be a flaw in the HAL code where it doesn't clear the interrupt flags, ...

qua by Associate III
  • 387 Views
  • 5 replies
  • 0 kudos

STM32H7 won't calibrate using STMCubeMX v6.13.0

CubeMX-generated code gets stuck on HAL_ADCEx_Calibration_Start(&hadc1, ADC_SINGLE_ENDED) using IDE v1.17.0 and FreeRTOS. RTOS is using SystemCoreClock. HAL Tick is using TIM17 with a priority = 14 (Higher than SysTick Timer.)Made AdcTask highest pri...

dbrooks by Associate II
  • 300 Views
  • 1 replies
  • 0 kudos

Resolved! GPIOA won't work with SPI1

Hi,I am using a Nucleo32 F411RE to control a 2.9inch flexible E-Ink raw display panel from WaveShare. I use their circuit and a copied version of their code they have on their website. The code sends SPI commands over SPI1 of the F411RE and controls ...

assjo by Associate II
  • 322 Views
  • 7 replies
  • 1 kudos