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Resolved! GPIO input external pullup question

Testing a board with STM32U5A5. VDD is 3.3VI have configured one GPIO as input with an external pullup to 3.3V through a 470k ohm resistor.The input reads high, but when I measure the input with a scope, I read 2.2V on the input, which is below 0.7VD...

TLin.5 by Associate III
  • 271 Views
  • 8 replies
  • 4 kudos

Resolved! Typo in the AN4660

Hello ST Community teamThe pin F11 on the TFBGA216 figure (figure 4 of the AN4660) should be VDD and not VSS according to the products datasheets (for the STM32F469N and STM32F769Nx6). That should be rectified on the next doc revision. Best Regards.I...

Issamos by Lead II
  • 106 Views
  • 1 replies
  • 2 kudos

Query about internal SMPS of STM32H757

I am trying to apply this configuration to my STM32H757 MCU where I am making a development board. here few things confuses me. 1. I have selected this configuration for better efficiency + noise performance. guide me if I am wrong2. What is the VDD ...

taj_0-1761655986257.png
taj by Associate II
  • 130 Views
  • 2 replies
  • 0 kudos

Resolved! STM32N6xxx SMPS internal , external

Hi Everybody1) There are some technical o specific reasons, that I was not able to find in the various documentations, to use external SMPS for VDDCORE insted of the internal one ?2) Working on NUCLEO-N675X0-Q, to configure various bridge for interna...

Resolved! STM32H7A3ZIT6 - Can't read/write to BKPRAM (0x38800000)

Hi everyone! hope you can help me. I have an issue on the STM32H7A3ZIT6.I already used the BKPRAM on other project, like the STM32H753 and I had no issue, work perfectly.So I don't understand why it is not OK, here below is what I do to test the BKPR...

RRO_Ata by Associate
  • 143 Views
  • 1 replies
  • 0 kudos

H723.. H735: audio DSP experience?

Heyho,management asked me about a project involving 1 or 2 audio input channels at 32-bit / 200 kHz and  - here's my knowledge almost zero - some "heavy & intense" DSP / FFT algorithms for real-time signal evaluation.We're already using the H723 .. H...

LCE by Principal II
  • 281 Views
  • 4 replies
  • 2 kudos

Resolved! How to update firmware via VCP

Hello everyone.How do I update the firmware via VCP on STM32F407VET6? Is it possible to do so? If so, what needs to be changed and added? Do I have to recreate the bootloader?I don't know where to start here.Thank you :)

No_Name by Associate III
  • 557 Views
  • 15 replies
  • 8 kudos

Resolved! Timer Problem

Hi everyone . I have timer problem again. I use STM32G431KBT6. I'm using timers. timer 3 for pwm pulse direction servo motor and timer 8 for pwm speed control dc motor. But when start timer8 pwm, timer 3 is starting same time. What could be the reaso...

cereyanmhendisi_1-1761556567308.png cereyanmhendisi_2-1761556602946.png

How to get PVD working on STM32F1 series

I have a question about PVD.I have this main.c file. My interrupt function void TM_PVD_Handler(uint8_t status) won't execute when the power goes off. Why? In this case, I'm sending a message to the UART to see if my computer recieves the message befo...

DMårt by Lead
  • 548 Views
  • 4 replies
  • 1 kudos