Matrox Solios eV-CL - Page 57

Matrox Solios eV-CL acquisition section 57
You can set up the auxiliary signals in the DCF. Alternatively, for most commonly
used functionalities, you can configure the auxiliary signals using the MIL-Lite
function MdigControl() (for example, with
M_IO...
*
, M_GRAB_TRIGGER...,
M_TIMER...
*
, or M_ROTARY_ENCODER...
*
).
Timers
Each PSG has four timers. These timers can each generate a timer output signal
that can be used to control the exposure time and other external events related to
the video source (such as a strobe). The timer signals can be output using camera
control signals or auxiliary output signals (or auxiliary I/O signals in output
mode).
Each PSG has two 24-bit timers (Timer 0 and 1) and two 16-bit timers (Timer 2
and 3). The 24-bit timers can count up to 16777215 clock ticks before resetting;
the 16-bit timers can count up to 65535 clock ticks before resetting.
The timers can use one of the following as a clock source:
• A clock that is internally generated. Each timer can use its PSG’s clock generator,
which can generate a single clock with a programmable frequency of 0.8 to
100 MHz. Timers can only use the clock generator of their own PSG.
• A clock from an external source. In this case, you must define the appropriate
auxiliary input signal as a timer-clock input; the timer-clock input signal must
meet the specification of the auxiliary signal. The same timer-clock input can be
used to clock different timers of the same PSG.
• A clock based on another timer of the same PSG. Timer 0 can use a clock based
on Timer 1, and Timer 1, 2, and 3 can use a clock based on Timer 0.
• A clock based on an external pixel clock signal. This applies to Matrox Solios
eV-CLBL and Matrox Solios eV-CLFL only.
• A clock based on the HSYNC or VSYNC signal generated by the PSG. This
applies to Matrox Solios eV-CLBL and Matrox Solios eV-CLFL only.
*. As of MIL 10.