Enable Signals Configuration
The enumerated parameter FvalMode specifies the usage of the FVAL downstream signal; possible values are:
Value |
Meaning |
FA |
The rising edge of the FVAL signal is used as a Start of Frame; the falling edge is irrelevant. |
FN |
The FVAL signal is ignored by the board. |
FC |
Raw grabbing; start/stop recording on FVAL rising/falling edges |
The enumerated parameter LvalMode specifies the usage of the LVAL downstream signal; possible values are:
Value |
Meaning |
LA |
The rising edge of the LVAL signal is used as a Start of Line; the falling edge is irrelevant. |
LN |
The LVAL signal is ignored by the board. |
The enumerated parameter DvalMode specifies the usage of the DVAL downstream signal; possible values are:
Value |
Meaning |
DG |
The DVAL signal is a clock qualifier,only the data transmitted during clock cycles with DVAL=1 are captured by the board. |
DN |
The DVAL signal is ignored by the board. |
The MultiCam channel must be configured for the appropriate camera operation modes by assigning the appropriate values to the FvalMode, LvalMode, and DvalMode parameters.
Valid combinations of values for area-scan cameras (Imaging = AREA)
FvalMode |
LvalMode |
DvalMode |
Downstream control mode |
FA |
LA |
DN |
Synchronize H/V on leading (rising) edge of LVAL/FVAL; DVAL is irrelevant. |
FA |
LA |
DG |
Synchronize H/V on leading (rising) edge of LVAL/FVAL; DVAL is a data qualifier. |
Valid combinations of values for line-scan cameras (Imaging = LINE or TDI)
FvalMode |
LvalMode |
DvalMode |
Downstream control mode |
FN |
LA |
DN |
Synchronize on leading (rising) edge of LVAL; FVAL and DVAL are irrelevant. |
FN |
LA |
DG |
Synchronize on leading (rising) edge of LVAL; FVAL is irrelevant; DVAL is a data qualifier. |
This board can record raw data from digital devices using the FVAL signal as a capture enable:
FvalMode |
LvalMode |
DvalMode |
Downstream control mode |
FC |
LN |
DN |
Raw grabbing; start/stop recording on FVAL rising/falling edges; LVAL and DVAL are irrelevant. |
FC |
LN |
DG |
Raw grabbing; start/stop recording on FVAL rising/falling edges; LVAL is irrelevant; DVAL is a data qualifier. |