dear all: I am now using dm355 for capturing 640x480(30 frame / second) picture and displayed in svga mode 800x600(60 frame / second) by ths8200.if i used edma to translated data from v4l2 caputured buffer to frame buffer, It will emerge noised pictures,i have set PBBPR register with value 30 .but if i change to displayed in vga mode 640x480(60 f/s),it seem ok!it seemed the ddr speed(171M) is not enough! but My project GUI(osd) must be set as 800x600,So i have to change displaying to svga.I don't want to used edma, then can i give the displayer driver(fbdev or v4l2) my caputre buffer address directly?
2009-07-09 zuowenping
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