Changeset 10742
 Timestamp:
 May 18, 2011, 5:20:01 PM (9 years ago)
 Location:
 firmware/FTM
 Files:

 3 added
 1 edited
Legend:
 Unmodified
 Added
 Removed

firmware/FTM/ftm_definitions.vhd
r10740 r10742 48 48  49 49  kw 28.04.: changed SD_SINGLE_WORD_SIZE to X"002", added W5300_S0_KPALVTR (keep alive) 50  51  modified: Patrick Vogler, May 18 2011 52  constants for light pulser and timing counter added 50 53  51 54  … … 387 390 ); 388 391 389  Light pulser interface 390 constant low_PLC : integer := 16;  minimal pulse duration in units of 4 ns 391 constant width_PLC : integer := 6;  counter width pulse duration 392 392 ====================================================================================== 393  Constants for Light pulser interface width (8ns+value*4ns) 394 ====================================================================================== 395  constant low_PLC : integer := 16;  minimal pulse duration in units of 4 ns 396  constant width_PLC : integer := 6;  counter width pulse duration 397 constant FLD_PULSE_LENGTH : integer := 12; 398 constant FLD_MIN_FREQ_DIV : integer := 25; 399 constant FLD_FD_MULT : integer := 50; 400 constant FLD_FD_MAX_RANGE : integer := 64; 401 393 402  Timing counter 394  constant tc_width : integer := 48;  width (number of bits) of timing counter 395  constant zero : unsigned (tc_width  1 downto 0) := (others => '0'); 396 403 constant TC_WIDTH : integer := 48; 404 constant PRECOUNT_WIDTH : integer := 8; 405 constant PRECOUNT_DIVIDER : integer := 50; 406 397 407 ====================================================================================== 398 408  Constants for calibration and pedestal triggers generation
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