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Shiina · 2024-11-18

The structure of the stm32 usb device library feels very complex, is there any tutorial to clarify the structure?I want to implement a UVC.This is a picture I found on a wiki, but I can't make sense of it.For example, the file stm32xxx_ll_usb has no ...

Shiina · 2024-10-28

I want to know the address in the memory map, is it a virtual address or a physical address?

Shiina · 2024-07-11

stm32h7xx_hal_uart.c is missing a prompt to enable usart interrupt in the DMA configuration instructions.Other comments have this sentence:(+++) Configure the USARTx interrupt priority and enable the NVIC USART IRQ handle(used for last byte sending c...

Shiina · 2024-07-10

With DCMI (with DMA) and USART only 1.5FPS, why is the frame rate really low? The output is set to QVGA and formatted as JPEG.

Shiina · 2024-04-27

I have used software control GPIO simulate parallel interface to successfully receive data, but how to faster, I used timer to trigger DMA, but the effect is very bad.stm32f1_ov2640_tim_dma_uart About: 1-1.5 FPS

Shiina · 2024-11-18

https://wiki.stmicroelectronics.cn/stm32mcu/wiki/Category:USB

Shiina · 2024-07-11

Thank you. I haven't tested anything else yet.

Shiina · 2024-07-10

Since I set QVGA, the output jpeg size is generally 4000-5000 bytes.

Shiina · 2024-07-10

Thanks, I'm using ov2640, which outputs the jpeg directly.

Shiina · 2024-07-10

I set the baudrate to 912600, and the camera output is JPEG, so I don't think USART is too slow.

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The STM32 USB device library feels complicated

Memory map and virtual address

STM32H7 USART DMA

STM32H750VBT6 DCMI USART

STM32F103C8T6 drive camera ov2640

Re: Tutorial on stm32 usb device library

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Re: STM32H750VBT6 DCMI USART

Re: STM32H750VBT6 DCMI USART