STM32 MCUs Products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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Uart Interrupt does not work

Hi, I am using the Nucleo - L152RE board and I am having a problem with the UART1 interrupt.The output to Teraterm works fine, but it does not go to the interrupt and the code terminates. Can you tell me what the problem is?  /* USER CODE BEGIN Heade...

Imhyeonu by Associate II
  • 287 Views
  • 3 replies
  • 0 kudos

Resolved! Looking for a suitable MCU for USB to 4 UART and I2C

Hi Sir,I'd like to choose STM32F103V/R/Z to achieve the USB to 4UART and I2C in my system.Because it's said this MCU's USB support up to 8 bidrectional end ports. I don't know whether it's right or not.Could you help to review it or propose another s...

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Bill_W by Associate II
  • 783 Views
  • 13 replies
  • 12 kudos

Writing a program that updates itself at runtime

How can you write a program that updates itself for an STM32, eg. for an STM32F103C8?I'm not talking about a bootloader, since (as far as I know), a bootloader lives from (say) 0x08000000 to 0x08001000 in Flash and then updates another program (anoth...

Resolved! DMA interrupt not triggering after init

After setting configuration registers in HAL_DMA_Start_IT, DMA fails to fire back interrupt, HAL_DMA_IRQHandler(). The TransferComplete call back routine is not called but only once after reset since HAL_DMA_IRQHandler() is called only once after ini...

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Klassic by Associate III
  • 1565 Views
  • 15 replies
  • 2 kudos

Resolved! EEPROM Emulator causes hard fault

MCU: STM32H753VI Scenario:Requirements specify that I must use internal flash memory to store error counters for our fault management system. I was going to directly write to flash memory using the built in HAL commands, but found that most people se...

STM32F401CC bootloader problem

Posted on June 28, 2017 at 14:27Hi all,i have two custom board with a microcontroller STM32F401CC in a 48pin package. One of these two micro is not working anymore due to a programmed option byte during a debug session. ST-link tell me this micro ha...