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Resolved! LPUART error

Has anyone encountered this problem? An ORE error occurs when receiving data with LPUART. After I clear it with software, an ORE error occurs every time I receive data. How can I solve it?

XZou.1 by • Associate II
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  • 1 replies
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SysTick not preempting other interrupts

Hello,I've got a very basic setup for an STM32G431KB/STM32G441KB where I use default interrupt priorities (verified all 0 in SBC and NVIC) for each exception in the vector table. I would therefore expect that a SysTick exception (-1) would preempt an...

danderle by • Associate II
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  • 5 replies
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Resolved! How to choose an external crystal for STM?

The MCU of STM selects the external crystal, whether to choose a high frequency or a low one, what are the instructions?For example, for stm32L486, the datasheet gives the maximum main frequency as 80MHz, so 4Mhz, 8Mhz, 16Mhz, 20Mhz, 40Mhz can be rea...

SNorm.1 by • Associate III
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  • 5 replies
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STM32F103VE <-> STM32F302CB I2C communication problem

Hello, teachers. I'm an introductory to stm32.I am posting like this because there is a situation where communication is not possible while communicating i2c between stm32.This is the current structure.STM32F103VE Use 1 Master, STM32F302CB Use 5 Slav...

JChoi.5 by • Associate
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  • 2 replies
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Resolved! Please someone help me in finding the datasheet for STM32F072RB in order to look into the "Alternate function mapping" of the GPIO pins.

I am using STM32F072RB Nucleo board and in the technical reference manual it is mentioned that "Please refer to the “Alternate function mapping�? table in the device datasheet for the detailed mapping of the alternate function I/O pins.". But I am no...

HD.1 by • Associate
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  • 1 replies
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Resolved! STM32F030C8 GPIO Max Source Current is limited to <5mA

Device Used : STM32F030C8, 48pin LQFP48I am driving MOC3043 Opto-Isolated Triac Driver so I need atleast 5 mA current sourced from the GPIO outputGPIO used with the MOC3043 is PA15 max current observed is 4.86mAOnly a single GPIO is configured at a t...

NFern.1 by • Associate III
  • 2280 Views
  • 4 replies
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Adc using DMA for sine wave

Hi,​ Iam using DMA technique to digitise a sine wave using nucleo-H743ZI2, where Adc clock frequency is 36.5MHZ . Iam taking single data at a time and sending out using usart with a baud rate of 250000, the issue I am facing is when I increase th...

GHARI.1 by • Associate II
  • 2595 Views
  • 12 replies
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How to debug both cores of the STM32H745 simultaneously?

Hello!i am working with the stm32h745 nucleo 144 board.i want to be able to debug both cores simultaneously using the onboard STLINK debugger, with no luck so far.followed the instructions from this ST document: https://www.st.com/resource/en/applica...

yuri CH by • Senior
  • 481 Views
  • 2 replies
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How should I build an effective peripheral "driver" ?

I've spent a fair amount of time getting small bits of code working so I can build them up into a larger working application. The code below works but I'm struggling with a way to move the parts related to GPS and the UART into separate files or clas...

magene by • Senior II
  • 454 Views
  • 1 replies
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