OMACTests

Description

In a move toward open, modular architecture control (OMAC) General Motors Powertrain (GMPT) began to investigate real-time extensions for Windows operating systems. The OMAC tests use the National Instruments PC-DIO-96 digital IO board to test and measure certain performance characteristics of real-time extensions.

Source Files

Gmpt1.cpp toggles the output port to produce a 1 ms or 10 sec square wave. Every 500 uSec or 5 seconds, output is alternately raised or lowered.
Gmpt2.cpp samples the input port and reproduces the input on the output port. Watches the input value on port B; while all inputs high, outputs all high on port A; when any input is low, outputs all low on port A.
Gmpt3.cpp sets up an interrupt handler which sends out a 1 millisecond pulse (raises the output on Port A) in response to each interrupt. Allow interrupts to be generated by strobing pin 9, aka. PPI A, Port C, bit 3. aka APC3.

Notes