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STM32H733 with HUB USB2514

Hi everyone,for my project I develop a board with MCU STM32H733VGT6. This project must to be have 4 USB peripheral ports.The MCU is configures as USB HOST, so i connected the USB pins (pin PA11 and PA12) as upstream.This nets goes to a usb HUB USB251...

PaoloAnterri_0-1722016116937.png

what is the cause of this hardfault ?

I execute my program on unmodified nucleo-u5a5zj-q , it reliably reach the "Default_Handler" from the default startup_STM32U5A5ZJTXQ.s.My understanding from the screenshot:It goes here because a hardfault occurs:SHCSR_S.HARDFAULTACT = 1HFSR_S.FORCED ...

Screenshot from 2024-07-27 22-54-07.png
acapola by Associate II
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PWM generation error

I tried generating PWM on my stm32g070rb but when I connected my PA7 and GND to my oscilloscope, the output I got does not look like a pwm signal in any way, I have verified my connections and now I think the error is from my code. 

WhatsApp Image 2024-07-27 at 01.19.34_3d2da966.jpg

Resolved! STM32F3 USART1 in LIN mode, is it possible to use a DMA for outgoing messages, but RXNE interrupt/reading data register for incoming messages?

I acquired some code for an STM32F3 that performs LIN communication over USART1.  Previously the code used DMA channels for both memory-to-peripheral and peripheral-to-memory transfers to/from USART1, but it had some problems that required restructur...

Dazai by Associate III
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Resolved! STM32L082KZ ADC load resistance

I am trying to create a voltage divider to read a battery voltage of 2.5 - 3.8 V using a STM32L082KZ with a Vref of 1.8V. While calculating the required division to measure the range i wanted to include the influence the ADC measurement/loading has o...

JWeij.1 by Associate II
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  • 2 replies
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VDD33USB on STM32H743

The datasheet says that power must be supplied on this pin if USB is to be used. It must also be the last power supply to be energized and the first to be removed.If my design does *not* use USB. Can I tie this pin to VSS and call it a day?I want to ...