= UFO Operation =
= Timeouts = 
 * The DMA timeout is at least 50ms
 * The bellow is explained how long it takes to read frame by hardware. We also need to add DMA timeout + PCIe transfer time on top of that before we can expect to acquire frame
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ð  Yes, I wish to fix this definitively. We can assume for today and for the future that we want to use only microsecond time (not nanosecond) in the follows way:  total time = integration time + readout time + back pressure from PC/DMA

ð  Integration time  à set by  Libuca so that you know well (microsecond)

ð  Readout time = number of rows * time per row. Now, number of rows à set by Libuca (you know) and the time per row is:

o   = 13us for 4MPixel @ 11 or 12 bit

o   = 3.3us for 4MPixel @ 10 bit

o   = 2.7us for 2MPixel @ clock 48MHz (in this case only 10bit is available)

ð  back pressure from PC/DMA à this is very variable and depends from the PC status not from the electronics.

ð  The DMA timeout is  67 ms that is too much. What we can do easily is to bring this timeout programmable by software, we will create a new register in the DMA bank register (address 0x64-0x68), so that you can define your timeout.
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