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5.2
SOFTWARE TESTING
North Star HSIO-4
To test an individual I/O port, use the
test diskette created in Section 5.1 as
follows:
1.
Insert the test diskette in drive one and
restart the computer with the reset switch.
The HSIO-4 sign-on message ("North Star
HSIO-4 Test") should appear on the screen,
followed by this prompt:
Test port [A, B, C, D]:
2.
Before selecting the port to be tested, you
must connect pin 2 and pin 3 at the
connector for the port to be tested. A test
fixture to do this may be constructed by
using a DP25-P connector with pin 2 and pin
3 soldered together. (See Figure 5-1.)
3.
As prompted by the screen display, select
the port to be tested (A, B, C, or D).
4.
The test program will respond with:
PxclSS, <ESC> to abort current test ...
Testing port:__ (A# B, c, p]___________
69
SOLDER HERE
Figure 5-1
User/Technical Manual
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