Instruction manual

AMPDIO DRIVERS

Page 94

6.4.1.13 Control Hardware Reinitialization — DIO_TC_SetResetOnRegister

Controls whether or not the board registration functions reinitialize the hardware on the board

being registered. By default, the board registration functions do reinitialize the hardware.

SUPPORTED IN VERSION 4.40 ONWARDS.

Initialization involves setting PPI ports to input mode (using 8255 mode 0), any other digital

outputs to zero, ADC channels to bipolar, single-ended mode and maximum input range, ADC

multiplexer to channel 0, ADC conversion trigger source to software trigger, DAC channels to

bipolar with minimum output range and all DAC outputs set to 0 (which generally produces 0V

output). Note that timer counter channels and counter clock and gate connections are not

initialized.

Note that regardless of the DLL reinitializing the hardware on the board being registered,

versions of the hardware device driver prior to version 4.40 also reinitialize the hardware on a

board everytime it is opened. Version 4.40 of the hardware device driver only initializes the

hardware once before it is opened for the first time. The registerBoard and registerBoardPci

functions may open several unopen boards temporarily while looking for the one specified by

the function's parameters. The DLL only initializes the hardware on at most one of these

boards (the one referred to by the returned board handle), but older versions of the device

driver will reinitialize the hardware on each of them.

DIO_TC_SetResetOnRegister (fROR)

where fROR short: controls whether or not subsequent

calls to the board registration functions will

reinitialize the hardware on the board referred

to by their returned board handles:

0 = Do not reinitialize hardware

other = Reinitialize hardware (default)

Returns void.

Prior Calls none