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Resolved! VREFBUF and STM32H563VI

I have VREFBUF configured for output to comparator on my board. I see this on MCU Vref+ pin...Is 1.2MHz waveform typical? Are capacitors on Vref+ expected to smooth? I looked for avg closer to 2.5v (VREFBUF_VOLTAGE_SCALE0). How close to 2.5v should t...

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is there a need for early initialization, SystemInit ?

So the startup code first sets the stack pointer, and then jumps to SystemInit for early initialization, then copies the initial values of data and zeroes bss region and then kickstarts C startup. Is there anything hardware related that has to be don...

mete by Senior II
  • 2294 Views
  • 7 replies
  • 2 kudos

STM32H755 I2C RXNE not always set in Master Receive

Hi there,We use the I2C peripheral of the STM32H755ZI MCU. We operate the I2C in master mode and normally everything works perfectly.However, sometimes the SCL line is kept low for bit longer during an I2C read operation, using the HAL function "HAL_...

PAHA_0-1699620666580.png PAHA_1-1699621335935.png
PAHA by Associate II
  • 1809 Views
  • 0 replies
  • 0 kudos

Microcontroller debug unit on STM32H753

Hello, I'm having an issue to use the Microcontroller debug unit (DBGMCU) on STM32H753. I have got IWDG set up and working as expected and would like to have the IWDG frozen during debugging. I have set the DBG_IIWDG1 (bit 18) of register DBGMCU_APB4...

seb536 by Associate
  • 1773 Views
  • 1 replies
  • 0 kudos

for an inverter PWM -ADC -feedback -synching

What is the best meathd to of feedback method In sineinverter (like commercial) ?is it good by a forumal appling instead using look up rable .It saves the memoryIf i use look up tableconst unsigned char sin_table[416]={0, 16, 32, 47, 62, 77, 91, 103,...

Resolved! RTC wakeup interrupts

I'm looking for an example code with STM32G071 device using RTC interrupt to wakeup device from sleep mode based on HAL libraries. Thank you

RCase by Associate II
  • 1976 Views
  • 3 replies
  • 0 kudos

W5500 library for a STM32F103C8

Hello.I am working on a project where I nees to communicate 2 STM32F103C8 that are on the same LAN using a W5500 module. Has anybody done something similar? What is the best way to do it? Although, there is a library for this porpuse? I am trying to...

SGatt.1 by Associate II
  • 8819 Views
  • 8 replies
  • 1 kudos