这个是我自己写的用stm32f407 DMA双缓冲模式读取ov2640 摄像头（不带FIFO）SVGA格式图片的程序，并以串口的形式发送到上位机，帧率只能达到7-This is what I wrote it myself with stm32f407 DMA double buffering mode reading ov2640 camera (without FIFO) SVGA image format program, and send the form to the PC seria