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desy20.txt

desy20.txt 1.0 KB
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  1. Camera: 3840x5120
    2. 

  2. ======
    3. 

  3.  - 5120 = 16 channels of 320 pixels each.
    4. 

  4.     * In fact two lines returned simultaneously (in each payload). So, there is 8 channels per line and 640 payloads are transferred to complete 2 lines.
    5. 

  5.     * Actually, 641. There is always 1 extra payload which is just skipped in libufodecode (starting with C0)
    6. 

  6.     * Actually, 1 (last) payload is missing for the first two rows. So, total number of payloads is (3840/2) * (640 + 1) - 32
    7. 

  7. 

  8.  - Limitations
    9. 

  9.     * Due to encoding, ROI should always start at even line and include even number of lines
    10. 

  10. 

  11.     
    12. 

  12. 

  13. Triggering
    14. 

  14. ==========
    15. 

  15.  There is 2 bits of control register responsible for external triggering
    16. 

  16.     bit 16 (from 1): enables external triggering (should be 1)
    17. 

  17.     bit 15 (from 1): sets edge type of triggering (should be 1)
    18. 

  18. 

  19.  - Start external triggering
    20. 

  20.     pci -w control 0x8000C201
    21. 

  21.  - Stop external triggering
    22. 

  22.     pci -w control 0x80008201
    23. 

  23. 

  24. 

  25. Repeating line bug
    26. 

  26. ==================
    27. 

  27.  - Happening with manual triggering, but do not happen in external trigger mode
    28.