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Strange image offset from camera to LCD

Question asked by ho.nghia on Nov 25, 2015
Latest reply on Nov 25, 2015 by ho.nghia
Hi all,

I've got an STM32F4 Discovery working with an OV7692 camera based on the sample project from ST. I've verified the image comes out fine by sending it over the UART. But every now and them the first image column does not start at column 0 on the LCD but randomly somewhere else and the remaining columns wrap around. It's as if some bytes went missing during the DMA transfer and it gets thrown off forever. I got access to HSYNC and VSYNC, but not sure if it's possible to force the DMA counter to reset to zero on those interrupts.