FPGA based OV7670 – Further image compression

In my last post, I was talking about image compression methods, mainly DCT transform based along with colour transform based. I’ve now combined these together and have managed to break the 6fps barrier for video over UART! I’ve implemented 2:1:1, 4:1:1 and 8:1:1 subsampling (I think I can call it that?) with reasonable performance! The […]

FPGA + OV7670 = Super slow UART webcam

What do you get when you combine an FPGA with some SDRAM and an OV7670 camera, transferring uncompressed frames through UART? Really poor performance, reliability and a pretty useless end product… Though just because it sucks that doesn’t mean it isn’t worth doing! I’ve had my first exam and I’ve wanted to crack on with […]

STM32F0 Software UART

Well it certainly has been a long time since I last posted! This however is something I’ve been wanting to try and implement for a long time, I just haven’t got round to it as of yet. So what is it you ask? How about: The ability to use UART on any pin with edge […]