DO_7300B_Config | ![]() ![]() ![]() ![]() |
DO_7300B_Config
@ Description
Informs PCIS-DASK library of the trigger source, port width, etc. selected for PCI7300A Rev.B/cPCI7300A Rev.B card with card ID CardNumber. You must call this function before calling function to perform continuous digital output operation.
@ Cards Support
7300A Rev.B
@ Syntax
I16 DO_7300B_Config (U16 CardNumber, U16 PortWidth, U16 TrigSource, U16 WaitStatus, U16 Terminator, U16 O_Cntrl_Pol, U32 FifoThreshold)
@ Parameter
CardNumber : The
card id of the card that want to perform this operation.
PortWidth : The
width of digital output port (PORT B). The valid value is 0, 8, 16, or
32.
TrigSource : The
trigger mode for continuous digital output.
Valid values:
TRIG_INT_PACER: on-board programmable pacer timer1
TRIG_CLK_10MHz: 10MHz clock
TRIG_CLK_20MHz: 20MHz clock
TRIG_HANDSHAKE: handshaking mode
TRIG_DO_CLK_TIMER_ACK: burst handshaking mode by using timer1 output as
output clock
TRIG_DO_CLK_10M_ACK: burst handshaking mode by using 10MHz clock as output
clock
TRIG_DO_CLK_20M_ACK: burst handshaking mode by using 20MHz clock as output
clock
WaitStatus : DO
Wait Status, the valid values are:
P7300_WAIT_NO: digital output starts immediately
P7300_WAIT_TRG: digital output waits rising or falling edge of O_TRG to
start
P7300_WAIT_FIFO: delay output data until FIFO is not almost empty
P7300_WAIT_BOTH: delay output data until O_TRG active and FIFO is not almost
empty
Terminator : PortB
Terminator On/Off, the valid values are:
P7300_TERM_ON: terminator on
P7300_TERM_OFF: terminator off
O_Cntrl_Pol :
The polarity configuration. This argument is an integer expression formed
from one or more of the manifest constants defined in dask.h.
There are three groups of constants:
(1) DOREQ
P7300_DOREQ_POS: DOREQ signal is rising edge active
P7300_DOREQ_NEG: DOREQ signal is falling edge active
(2) DOACK
P7300_DOACK_POS: DOACK signal is rising edge active
P7300_DOACK_NEG: DOACK signal is falling edge active
(3) DOTRIG
P7300_DOTRIG_POS: DOTRIG signal is rising edge active
P7300_DOTRIG_NEG: DOTRIG signal is falling edge active
FifoThreshold :
programmable almost empty threshold of both PORTB FIFO and PORTA FIFO (if
output port width is 32).
@ Return Code
NoError, ErrorInvalidCardNumber,
ErrorCardNotRegistered, ErrorFuncNotSupport