STM32 MCUs Products

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Forum Posts

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
  • 694 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
  • 2310 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
  • 3811 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...