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Hello everybody. I'm trying to use the video input sample provided by analog devices with blackfin 533 ez lite kit However I have some problem because I'm not able to run it correctly. I'm using a little CMOS color camera (lafayette MC-CG25CM) that seems to meet all the requirement for the video input signals on the blackfin platform. However I don't now how to change the settings of the example proposed by ASI. In effect this camera supports PAL 512Hx582V, 2:1 interlace. I was able to change *pPPI_FRAME = 625; to set the standard for PAL. But I don't know how to set the new size of the image. I found in some web site the following settings changes for Init_DMA function //Target address of the DMA *pDMA0_START_ADDR = 0x0; //PPI Peripheral is used *pDMA0_PERIPHERAL_MAP = 0x0; //DMA Config: Enable DMA | Memory write DMA | Discard DMA FIFO before start | enable assertation of interrupt | NDSIZE for stop mode | Enable STOP DMA *pDMA0_CONFIG = DMAEN | DI_EN | WNR | RESTART | DMA2D | WDSIZE_16 ; *pDMA0_X_COUNT = 512; *pDMA0_Y_COUNT = 582; *pDMA0_X_MODIFY = 0x2; //2 because WDSIZE *pDMA0_Y_MODIFY = 0x2; but it still doesn't work. I see only some line (of different level of grey). Can you say me what's my error? thanks a lot Giovanni ___________________________________ Nuovo Yahoo! Messenger: E' molto pidivertente: Audibles, Avatar, Webcam, Giochi, Rubrica Scaricalo ora! http://it.messenger.yahoo.it |
Running the image input example for blackfin 533
Started by ●January 17, 2005
