STM32F103C8T6 drive camera ov2640

[Shiina]

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

[Tesla DeLorean]

It's a very old part, couldn't you just use a more modern one with DCMI and F(S)MC memory?

Band width of UART and USB FS also likely to be significantly limiting on frame rates.

[Shiina]

yes, I just want to know what is the maximum frame rate that can be optimized :thinking_face:Although it feels like I'm torturing myself.