We have developed a process control application using PB/DOS V3.5
that is now in beta test phase. The hardware environment is
composed of an 850 MHz all-in-one CPU card running in a microbox
and using MSDOS V6.22 as the OS.
While sampling various process channels, a skid-mounted LCD
updates with the date and time displayed on one line every five
seconds. The date and time are displayed using the Date$ and
Time$ system variables. Beta testing has found that the code
works flawlessly until midnight at which time the application
stops working and turns into a rotting pumpkin of sorts. We
don't find any potential memory overwrite or other subtle errors
that could potentially cause this to occur.
Has anyone witnessed this sort of problem before? If so, is
there a recommended fix? Are there any troubleshooting
recommendations?
------------------
php
that is now in beta test phase. The hardware environment is
composed of an 850 MHz all-in-one CPU card running in a microbox
and using MSDOS V6.22 as the OS.
While sampling various process channels, a skid-mounted LCD
updates with the date and time displayed on one line every five
seconds. The date and time are displayed using the Date$ and
Time$ system variables. Beta testing has found that the code
works flawlessly until midnight at which time the application
stops working and turns into a rotting pumpkin of sorts. We
don't find any potential memory overwrite or other subtle errors
that could potentially cause this to occur.
Has anyone witnessed this sort of problem before? If so, is
there a recommended fix? Are there any troubleshooting
recommendations?
------------------
php
Comment