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STM32F407 DCMI questions?

Associate II

DCMI �?르기 기능�?� 수행하고 싶습니다.

Stm32f4xx_init.c CROP 기능�?� 225�?��?��?서 수행�?�면 비디오가 �?��?하게 나옵니다.

나는 소스와 비디오를 첨부했습니다.

�?�?��?� 무엇입니까??

나는 CROP 320 * 120으로 �?르는 것으로 비디오를 제대로보고 싶다.


DMA_DoubleBufferModeConfig(DMA2_Stream1, Bank1_SRAM3_ADDR+(0x4b00*4), DMA_Memory_0); DMA �?�중 버�?� 구성

DMA_DoubleBufferModeCmd(DMA2_Stream1, 사용 가능); DMA �?�중 버�?� 모드 활성화

�?� 부분�?� 작성하지 않고는 카메�?� 비디오를 볼 수 없습니까?

ST Employee

Hello @LSang.1​ ,

I've translated your question using a translation tool to increase the chances of getting you a reply from our experts and community members, since the majority interact in English.

Here is the translation of your post:


I want to do DCMI crop function.

Stm32f4xx_init.c The video comes out weird when the CROP function is performed on line 225.

 I have attached the source and video.

What is the cause??

I want to see the video properly by cutting it with CROP 320*120.


DMA_DoubleBufferModeConfig(DMA2_Stream1, Bank1_SRAM3_ADDR+(0x4b00*4), DMA_Memory_0); DMA double buffer configuration

DMA_DoubleBufferModeCmd (DMA2_Stream1, available); Enable DMA double buffer mode

 Can't you watch camera video without filling out this part?


Maybe you are using the embedded synchronization mode.

The DCMI does not support the crop feature, when using the embedded synchronization mode (AN5020 Application note Digital camera interface (DCMI) for STM32 MCUs)

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