STM32 MCUs Products

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STM32C011. Cant run sysclk from LSI.

Im trying to run SYSCLK from LSI on a STM32C011. But it appears as if the MCU is not running. I cant see anything in the datasheet that says the clock cant be used and it can be routed fine in the clock configurator. Am I missing something in the dat...

SHDK2000 by Associate II
  • 421 Views
  • 27 replies
  • 8 kudos

STM32H750 and USB3300-EZK has stopped working

I designed a board that uses a STM32H750 with a USB3300-EZK that has stopped communicating over USB. It's been having intermittent issues for the last day or so (sometimes I'd need to power cycle the board before it would show up, but then it would w...

sophie by Associate II
  • 56 Views
  • 4 replies
  • 1 kudos

STM32 ADC VREFINT / TEMP reads maximal value 4095

Hi,I’m trying to read internal temperature sensor on ADC1, but the ADC result is always 4095.I use STM32L471, and I know that the problem is not HW related, when I run a different bin it reads the temp ok.Tried to read VREFINT, raw value is also 4095...

Screenshot 2026-01-20 152910.png Screenshot 2026-01-20 153102.png Screenshot 2026-01-20 155308.png

STM32F446ZCT6 CAN Bus goes to Bus-Off state

Hi everyone, I am facing an issue with CAN communication on STM32F446ZCT6, where the CAN controller frequently enters the Bus-Off state. Hardware Details MCU: STM32F446ZCT6 CAN Transceiver: (TJA1042T) I am working with CAN communication on STM32F4...